diff options
92 files changed, 2283 insertions, 549 deletions
diff --git a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt index 0c3d6015868d..f3635d5aeba4 100644 --- a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt +++ b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt @@ -33,6 +33,12 @@ Required Properties: - clock-names: Aliases for the above clocks. They should be "pll_ref", "pll_in", "cdclk", "sclk_audio", and "sclk_pcm_in" respectively. +Optional Properties: + + - power-domains: a phandle to respective power domain node as described by + generic PM domain bindings (see power/power_domain.txt for more + information). + The following is the list of clocks generated by the controller. Each clock is assigned an identifier and client nodes use this identifier to specify the clock which they consume. Some of the clocks are available only on a particular diff --git a/Documentation/devicetree/bindings/clock/exynos4-clock.txt b/Documentation/devicetree/bindings/clock/exynos4-clock.txt index f5a5b19ed3b2..bc61c952cb0b 100644 --- a/Documentation/devicetree/bindings/clock/exynos4-clock.txt +++ b/Documentation/devicetree/bindings/clock/exynos4-clock.txt @@ -41,3 +41,46 @@ Example 2: UART controller node that consumes the clock generated by the clock clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>; clock-names = "uart", "clk_uart_baud0"; }; + +Exynos4412 SoC contains some additional clocks for FIMC-ISP (Camera ISP) +subsystem. Registers for those clocks are located in the ISP power domain. +Because those registers are also located in a different memory region than +the main clock controller, a separate clock controller has to be defined for +handling them. + +Required Properties: + +- compatible: should be "samsung,exynos4412-isp-clock". + +- reg: physical base address of the ISP clock controller and length of memory + mapped region. + +- #clock-cells: should be 1. + +- clocks: list of the clock controller input clock identifiers, + from common clock bindings, should point to CLK_ACLK200 and + CLK_ACLK400_MCUISP clocks from the main clock controller. + +- clock-names: list of the clock controller input clock names, + as described in clock-bindings.txt, should be "aclk200" and + "aclk400_mcuisp". + +- power-domains: a phandle to ISP power domain node as described by + generic PM domain bindings. + +Example 3: The clock controllers bindings for Exynos4412 SoCs. + + clock: clock-controller@10030000 { + compatible = "samsung,exynos4412-clock"; + reg = <0x10030000 0x18000>; + #clock-cells = <1>; + }; + + isp_clock: clock-controller@10048000 { + compatible = "samsung,exynos4412-isp-clock"; + reg = <0x10048000 0x1000>; + #clock-cells = <1>; + power-domains = <&pd_isp>; + clocks = <&clock CLK_ACLK200>, <&clock CLK_ACLK400_MCUISP>; + clock-names = "aclk200", "aclk400_mcuisp"; + }; diff --git a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt index fe885abc9cb4..c473dd38dd55 100644 --- a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt +++ b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt @@ -168,6 +168,11 @@ Required Properties: - aclk_cam1_400 - aclk_cam1_552 +Optional properties: + - power-domains: a phandle to respective power domain node as described by + generic PM domain bindings (see power/power_domain.txt for more + information). + Each clock is assigned an identifier and client nodes can use this identifier to specify the clock which they consume. @@ -270,6 +275,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_ACLK_G2D_266>, <&cmu_top CLK_ACLK_G2D_400>; + power-domains = <&pd_g2d>; }; cmu_disp: clock-controller@13b90000 { @@ -295,6 +301,7 @@ Example 2: Examples of clock controller nodes are listed below. <&cmu_mif CLK_SCLK_DECON_ECLK_DISP>, <&cmu_mif CLK_SCLK_DECON_TV_VCLK_DISP>, <&cmu_mif CLK_ACLK_DISP_333>; + power-domains = <&pd_disp>; }; cmu_aud: clock-controller@114c0000 { @@ -304,6 +311,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "fout_aud_pll"; clocks = <&xxti>, <&cmu_top CLK_FOUT_AUD_PLL>; + power-domains = <&pd_aud>; }; cmu_bus0: clock-controller@13600000 { @@ -340,6 +348,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "aclk_g3d_400"; clocks = <&xxti>, <&cmu_top CLK_ACLK_G3D_400>; + power-domains = <&pd_g3d>; }; cmu_gscl: clock-controller@13cf0000 { @@ -353,6 +362,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_ACLK_GSCL_111>, <&cmu_top CLK_ACLK_GSCL_333>; + power-domains = <&pd_gscl>; }; cmu_apollo: clock-controller@11900000 { @@ -384,6 +394,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_SCLK_JPEG_MSCL>, <&cmu_top CLK_ACLK_MSCL_400>; + power-domains = <&pd_mscl>; }; cmu_mfc: clock-controller@15280000 { @@ -393,6 +404,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "aclk_mfc_400"; clocks = <&xxti>, <&cmu_top CLK_ACLK_MFC_400>; + power-domains = <&pd_mfc>; }; cmu_hevc: clock-controller@14f80000 { @@ -402,6 +414,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "aclk_hevc_400"; clocks = <&xxti>, <&cmu_top CLK_ACLK_HEVC_400>; + power-domains = <&pd_hevc>; }; cmu_isp: clock-controller@146d0000 { @@ -415,6 +428,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_ACLK_ISP_DIS_400>, <&cmu_top CLK_ACLK_ISP_400>; + power-domains = <&pd_isp>; }; cmu_cam0: clock-controller@120d0000 { @@ -430,6 +444,7 @@ Example 2: Examples of clock controller nodes are listed below. <&cmu_top CLK_ACLK_CAM0_333>, <&cmu_top CLK_ACLK_CAM0_400>, <&cmu_top CLK_ACLK_CAM0_552>; + power-domains = <&pd_cam0>; }; cmu_cam1: clock-controller@145d0000 { @@ -451,6 +466,7 @@ Example 2: Examples of clock controller nodes are listed below. <&cmu_top CLK_ACLK_CAM1_333>, <&cmu_top CLK_ACLK_CAM1_400>, <&cmu_top CLK_ACLK_CAM1_552>; + power-domains = <&pd_cam1>; }; Example 3: UART controller node that consumes the clock generated by the clock diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt index 316e13686568..f1890d0777a6 100644 --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt @@ -22,6 +22,7 @@ Required Properties: - "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2) - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3) - "renesas,r8a7796-cpg-mssr" for the r8a7796 SoC (R-Car M3-W) + - "renesas,r8a77970-cpg-mssr" for the r8a77970 SoC (R-Car V3M) - "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3) - reg: Base address and length of the memory resource used by the CPG/MSSR @@ -31,8 +32,8 @@ Required Properties: clock-names - clock-names: List of external parent clock names. Valid names are: - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794, - r8a7795, r8a7796, r8a77995) - - "extalr" (r8a7795, r8a7796) + r8a7795, r8a7796, r8a77970, r8a77995) + - "extalr" (r8a7795, r8a7796, r8a77970) - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794) - #clock-cells: Must be 2 diff --git a/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt index bb5d942075fb..8ff3e2774ed8 100644 --- a/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt +++ b/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt @@ -1,6 +1,6 @@ -* Renesas RZ Clock Pulse Generator (CPG) +* Renesas RZ/A1 Clock Pulse Generator (CPG) -The CPG generates core clocks for the RZ SoCs. It includes the PLL, variable +The CPG generates core clocks for the RZ/A1 SoCs. It includes the PLL, variable CPU and GPU clocks, and several fixed ratio dividers. The CPG also provides a Clock Domain for SoC devices, in combination with the CPG Module Stop (MSTP) Clocks. diff --git a/MAINTAINERS b/MAINTAINERS index 2281af4b41b6..d709a24db7e4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11428,6 +11428,7 @@ F: include/linux/rpmsg/ RENESAS CLOCK DRIVERS M: Geert Uytterhoeven <geert+renesas@glider.be> L: linux-renesas-soc@vger.kernel.org +T: git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git clk-renesas S: Supported F: drivers/clk/renesas/ diff --git a/drivers/clk/clk-bulk.c b/drivers/clk/clk-bulk.c index c834f5abfc49..4c10456f8a32 100644 --- a/drivers/clk/clk-bulk.c +++ b/drivers/clk/clk-bulk.c @@ -105,6 +105,7 @@ err: return ret; } +EXPORT_SYMBOL_GPL(clk_bulk_prepare); #endif /* CONFIG_HAVE_CLK_PREPARE */ diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index c8d83acda006..b6495a12f65f 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -21,6 +21,7 @@ #include <linux/of.h> #include <linux/device.h> #include <linux/init.h> +#include <linux/pm_runtime.h> #include <linux/sched.h> #include <linux/clkdev.h> @@ -46,6 +47,7 @@ struct clk_core { const struct clk_ops *ops; struct clk_hw *hw; struct module *owner; + struct device *dev; struct clk_core *parent; const char **parent_names; struct clk_core **parents; @@ -87,6 +89,26 @@ struct clk { struct hlist_node clks_node; }; +/*** runtime pm ***/ +static int clk_pm_runtime_get(struct clk_core *core) +{ + int ret = 0; + + if (!core->dev) + return 0; + + ret = pm_runtime_get_sync(core->dev); + return ret < 0 ? ret : 0; +} + +static void clk_pm_runtime_put(struct clk_core *core) +{ + if (!core->dev) + return; + + pm_runtime_put_sync(core->dev); +} + /*** locking ***/ static void clk_prepare_lock(void) { @@ -150,6 +172,8 @@ static void clk_enable_unlock(unsigned long flags) static bool clk_core_is_prepared(struct clk_core *core) { + bool ret = false; + /* * .is_prepared is optional for clocks that can prepare * fall back to software usage counter if it is missing @@ -157,11 +181,18 @@ static bool clk_core_is_prepared(struct clk_core *core) if (!core->ops->is_prepared) return core->prepare_count; - return core->ops->is_prepared(core->hw); + if (!clk_pm_runtime_get(core)) { + ret = core->ops->is_prepared(core->hw); + clk_pm_runtime_put(core); + } + + return ret; } static bool clk_core_is_enabled(struct clk_core *core) { + bool ret = false; + /* * .is_enabled is only mandatory for clocks that gate * fall back to software usage counter if .is_enabled is missing @@ -169,7 +200,29 @@ static bool clk_core_is_enabled(struct clk_core *core) if (!core->ops->is_enabled) return core->enable_count; - return core->ops->is_enabled(core->hw); + /* + * Check if clock controller's device is runtime active before + * calling .is_enabled callback. If not, assume that clock is + * disabled, because we might be called from atomic context, from + * which pm_runtime_get() is not allowed. + * This function is called mainly from clk_disable_unused_subtree, + * which ensures proper runtime pm activation of controller before + * taking enable spinlock, but the below check is needed if one tries + * to call it from other places. + */ + if (core->dev) { + pm_runtime_get_noresume(core->dev); + if (!pm_runtime_active(core->dev)) { + ret = false; + goto done; + } + } + + ret = core->ops->is_enabled(core->hw); +done: + clk_pm_runtime_put(core); + + return ret; } /*** helper functions ***/ @@ -489,6 +542,8 @@ static void clk_core_unprepare(struct clk_core *core) if (core->ops->unprepare) core->ops->unprepare(core->hw); + clk_pm_runtime_put(core); + trace_clk_unprepare_complete(core); clk_core_unprepare(core->parent); } @@ -530,10 +585,14 @@ static int clk_core_prepare(struct clk_core *core) return 0; if (core->prepare_count == 0) { - ret = clk_core_prepare(core->parent); + ret = clk_pm_runtime_get(core); if (ret) return ret; + ret = clk_core_prepare(core->parent); + if (ret) + goto runtime_put; + trace_clk_prepare(core); if (core->ops->prepare) @@ -541,15 +600,18 @@ static int clk_core_prepare(struct clk_core *core) trace_clk_prepare_complete(core); - if (ret) { - clk_core_unprepare(core->parent); - return ret; - } + if (ret) + goto unprepare; } core->prepare_count++; return 0; +unprepare: + clk_core_unprepare(core->parent); +runtime_put: + clk_pm_runtime_put(core); + return ret; } static int clk_core_prepare_lock(struct clk_core *core) @@ -745,6 +807,9 @@ static void clk_unprepare_unused_subtree(struct clk_core *core) if (core->flags & CLK_IGNORE_UNUSED) return; + if (clk_pm_runtime_get(core)) + return; + if (clk_core_is_prepared(core)) { trace_clk_unprepare(core); if (core->ops->unprepare_unused) @@ -753,6 +818,8 @@ static void clk_unprepare_unused_subtree(struct clk_core *core) core->ops->unprepare(core->hw); trace_clk_unprepare_complete(core); } + + clk_pm_runtime_put(core); } static void clk_disable_unused_subtree(struct clk_core *core) @@ -768,6 +835,9 @@ static void clk_disable_unused_subtree(struct clk_core *core) if (core->flags & CLK_OPS_PARENT_ENABLE) clk_core_prepare_enable(core->parent); + if (clk_pm_runtime_get(core)) + goto unprepare_out; + flags = clk_enable_lock(); if (core->enable_count) @@ -792,6 +862,8 @@ static void clk_disable_unused_subtree(struct clk_core *core) unlock_out: clk_enable_unlock(flags); + clk_pm_runtime_put(core); +unprepare_out: if (core->flags & CLK_OPS_PARENT_ENABLE) clk_core_disable_unprepare(core->parent); } @@ -1038,9 +1110,13 @@ EXPORT_SYMBOL_GPL(clk_get_accuracy); static unsigned long clk_recalc(struct clk_core *core, unsigned long parent_rate) { - if (core->ops->recalc_rate) - return core->ops->recalc_rate(core->hw, parent_rate); - return parent_rate; + unsigned long rate = parent_rate; + + if (core->ops->recalc_rate && !clk_pm_runtime_get(core)) { + rate = core->ops->recalc_rate(core->hw, parent_rate); + clk_pm_runtime_put(core); + } + return rate; } /** @@ -1565,6 +1641,7 @@ static int clk_core_set_rate_nolock(struct clk_core *core, { struct clk_core *top, *fail_clk; unsigned long rate = req_rate; + int ret = 0; if (!core) return 0; @@ -1581,21 +1658,28 @@ static int clk_core_set_rate_nolock(struct clk_core *core, if (!top) return -EINVAL; + ret = clk_pm_runtime_get(core); + if (ret) + return ret; + /* notify that we are about to change rates */ fail_clk = clk_propagate_rate_change(top, PRE_RATE_CHANGE); if (fail_clk) { pr_debug("%s: failed to set %s rate\n", __func__, fail_clk->name); clk_propagate_rate_change(top, ABORT_RATE_CHANGE); - return -EBUSY; + ret = -EBUSY; + goto err; } /* change the rates */ clk_change_rate(top); core->req_rate = req_rate; +err: + clk_pm_runtime_put(core); - return 0; + return ret; } /** @@ -1826,12 +1910,16 @@ static int clk_core_set_parent(struct clk_core *core, struct clk_core *parent) p_rate = parent->rate; } + ret = clk_pm_runtime_get(core); + if (ret) + goto out; + /* propagate PRE_RATE_CHANGE notifications */ ret = __clk_speculate_rates(core, p_rate); /* abort if a driver objects */ if (ret & NOTIFY_STOP_MASK) - goto out; + goto runtime_put; /* do the re-parent */ ret = __clk_set_parent(core, parent, p_index); @@ -1844,6 +1932,8 @@ static int clk_core_set_parent(struct clk_core *core, struct clk_core *parent) __clk_recalc_accuracies(core); } +runtime_put: + clk_pm_runtime_put(core); out: clk_prepare_unlock(); @@ -2350,7 +2440,7 @@ static inline void clk_debug_unregister(struct clk_core *core) */ static int __clk_core_init(struct clk_core *core) { - int i, ret = 0; + int i, ret; struct clk_core *orphan; struct hlist_node *tmp2; unsigned long rate; @@ -2360,6 +2450,10 @@ static int __clk_core_init(struct clk_core *core) clk_prepare_lock(); + ret = clk_pm_runtime_get(core); + if (ret) + goto unlock; + /* check to see if a clock with this name is already registered */ if (clk_core_lookup(core->name)) { pr_debug("%s: clk %s already initialized\n", @@ -2512,6 +2606,8 @@ static int __clk_core_init(struct clk_core *core) kref_init(&core->ref); out: + clk_pm_runtime_put(core); +unlock: clk_prepare_unlock(); if (!ret) @@ -2583,6 +2679,8 @@ struct clk *clk_register(struct device *dev, struct clk_hw *hw) goto fail_name; } core->ops = hw->init->ops; + if (dev && pm_runtime_enabled(dev)) + core->dev = dev; if (dev && dev->driver) core->owner = dev->driver->owner; core->hw = hw; diff --git a/drivers/clk/hisilicon/clk-hi3660.c b/drivers/clk/hisilicon/clk-hi3660.c index a18258eb89cb..f40419959656 100644 --- a/drivers/clk/hisilicon/clk-hi3660.c +++ b/drivers/clk/hisilicon/clk-hi3660.c @@ -34,7 +34,7 @@ static const struct hisi_fixed_rate_clock hi3660_fixed_rate_clks[] = { /* crgctrl */ static const struct hisi_fixed_factor_clock hi3660_crg_fixed_factor_clks[] = { - { HI3660_FACTOR_UART3, "clk_factor_uart3", "iomcu_peri0", 1, 8, 0, }, + { HI3660_FACTOR_UART3, "clk_factor_uart3", "iomcu_peri0", 1, 16, 0, }, { HI3660_CLK_FACTOR_MMC, "clk_factor_mmc", "clkin_sys", 1, 6, 0, }, { HI3660_CLK_GATE_I2C0, "clk_gate_i2c0", "clk_i2c0_iomcu", 1, 4, 0, }, { HI3660_CLK_GATE_I2C1, "clk_gate_i2c1", "clk_i2c1_iomcu", 1, 4, 0, }, diff --git a/drivers/clk/hisilicon/clk-hi6220.c b/drivers/clk/hisilicon/clk-hi6220.c index e786d717f75d..a87809d4bd52 100644 --- a/drivers/clk/hisilicon/clk-hi6220.c +++ b/drivers/clk/hisilicon/clk-hi6220.c @@ -145,7 +145,7 @@ static struct hisi_gate_clock hi6220_separated_gate_clks_sys[] __initdata = { { HI6220_BBPPLL_SEL, "bbppll_sel", "pll0_bbp_gate", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 9, 0, }, { HI6220_MEDIA_PLL_SRC, "media_pll_src", "pll_media_gate", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 10, 0, }, { HI6220_MMC2_SEL, "mmc2_sel", "mmc2_mux1", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 11, 0, }, - { HI6220_CS_ATB_SYSPLL, "cs_atb_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IGNORE_UNUSED, 0x270, 12, 0, }, + { HI6220_CS_ATB_SYSPLL, "cs_atb_syspll", "syspll", CLK_SET_RATE_PARENT|CLK_IS_CRITICAL, 0x270, 12, 0, }, }; static struct hisi_mux_clock hi6220_mux_clks_sys[] __initdata = { diff --git a/drivers/clk/hisilicon/clkgate-separated.c b/drivers/clk/hisilicon/clkgate-separated.c index 1172b0982b77..f36bdef91831 100644 --- a/drivers/clk/hisilicon/clkgate-separated.c +++ b/drivers/clk/hisilicon/clkgate-separated.c @@ -105,10 +105,8 @@ struct clk *hisi_register_clkgate_sep(struct device *dev, const char *name, struct clk_init_data init; sclk = kzalloc(sizeof(*sclk), GFP_KERNEL); - if (!sclk) { - pr_err("%s: fail to allocate separated gated clk\n", __func__); + if (!sclk) return ERR_PTR(-ENOMEM); - } init.name = name; init.ops = &clkgate_separated_ops; diff --git a/drivers/clk/hisilicon/crg-hi3798cv200.c b/drivers/clk/hisilicon/crg-hi3798cv200.c index ed8bb5f7507f..8478948e858e 100644 --- a/drivers/clk/hisilicon/crg-hi3798cv200.c +++ b/drivers/clk/hisilicon/crg-hi3798cv200.c @@ -47,6 +47,8 @@ #define HI3798CV200_FIXED_12M 81 #define HI3798CV200_FIXED_48M 82 #define HI3798CV200_FIXED_60M 83 +#define HI3798CV200_FIXED_166P5M 84 +#define HI3798CV200_SDIO0_MUX 85 #define HI3798CV200_CRG_NR_CLKS 128 @@ -63,6 +65,7 @@ static const struct hisi_fixed_rate_clock hi3798cv200_fixed_rate_clks[] = { { HI3798CV200_FIXED_75M, "75m", NULL, 0, 75000000, }, { HI3798CV200_FIXED_100M, "100m", NULL, 0, 100000000, }, { HI3798CV200_FIXED_150M, "150m", NULL, 0, 150000000, }, + { HI3798CV200_FIXED_166P5M, "166p5m", NULL, 0, 165000000, }, { HI3798CV200_FIXED_200M, "200m", NULL, 0, 200000000, }, { HI3798CV200_FIXED_250M, "250m", NULL, 0, 250000000, }, }; @@ -75,12 +78,19 @@ static const char *const comphy1_mux_p[] = { "100m", "25m"}; static u32 comphy1_mux_table[] = {2, 3}; +static const char *const sdio_mux_p[] = { + "100m", "50m", "150m", "166p5m" }; +static u32 sdio_mux_table[] = {0, 1, 2, 3}; + static struct hisi_mux_clock hi3798cv200_mux_clks[] = { { HI3798CV200_MMC_MUX, "mmc_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p), CLK_SET_RATE_PARENT, 0xa0, 8, 3, 0, mmc_mux_table, }, { HI3798CV200_COMBPHY1_MUX, "combphy1_mux", comphy1_mux_p, ARRAY_SIZE(comphy1_mux_p), CLK_SET_RATE_PARENT, 0x188, 10, 2, 0, comphy1_mux_table, }, + { HI3798CV200_SDIO0_MUX, "sdio0_mux", sdio_mux_p, + ARRAY_SIZE(sdio_mux_p), CLK_SET_RATE_PARENT, + 0x9c, 8, 2, 0, sdio_mux_table, }, }; static const struct hisi_gate_clock hi3798cv200_gate_clks[] = { @@ -104,7 +114,7 @@ static const struct hisi_gate_clock hi3798cv200_gate_clks[] = { /* SDIO */ { HISTB_SDIO0_BIU_CLK, "clk_sdio0_biu", "200m", CLK_SET_RATE_PARENT, 0x9c, 0, 0, }, - { HISTB_SDIO0_CIU_CLK, "clk_sdio0_ciu", "mmc_mux", + { HISTB_SDIO0_CIU_CLK, "clk_sdio0_ciu", "sdio0_mux", CLK_SET_RATE_PARENT, 0x9c, 1, 0, }, /* EMMC */ { HISTB_MMC_BIU_CLK, "clk_mmc_biu", "200m", diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c index b2d1e8ed7152..ae385310e980 100644 --- a/drivers/clk/meson/gxbb.c +++ b/drivers/clk/meson/gxbb.c @@ -1131,6 +1131,253 @@ static struct clk_gate gxbb_sd_emmc_c_clk0 = { }, }; +/* VPU Clock */ + +static u32 mux_table_vpu[] = {0, 1, 2, 3}; +static const char * const gxbb_vpu_parent_names[] = { + "fclk_div4", "fclk_div3", "fclk_div5", "fclk_div7" +}; + +static struct clk_mux gxbb_vpu_0_sel = { + .reg = (void *)HHI_VPU_CLK_CNTL, + .mask = 0x3, + .shift = 9, + .lock = &clk_lock, + .table = mux_table_vpu, + .hw.init = &(struct clk_init_data){ + .name = "vpu_0_sel", + .ops = &clk_mux_ops, + /* + * bits 9:10 selects from 4 possible parents: + * fclk_div4, fclk_div3, fclk_div5, fclk_div7, + */ + .parent_names = gxbb_vpu_parent_names, + .num_parents = ARRAY_SIZE(gxbb_vpu_parent_names), + .flags = CLK_SET_RATE_NO_REPARENT, + }, +}; + +static struct clk_divider gxbb_vpu_0_div = { + .reg = (void *)HHI_VPU_CLK_CNTL, + .shift = 0, + .width = 7, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data){ + .name = "vpu_0_div", + .ops = &clk_divider_ops, + .parent_names = (const char *[]){ "vpu_0_sel" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_gate gxbb_vpu_0 = { + .reg = (void *)HHI_VPU_CLK_CNTL, + .bit_idx = 8, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data) { + .name = "vpu_0", + .ops = &clk_gate_ops, + .parent_names = (const char *[]){ "vpu_0_div" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, +}; + +static struct clk_mux gxbb_vpu_1_sel = { + .reg = (void *)HHI_VPU_CLK_CNTL, + .mask = 0x3, + .shift = 25, + .lock = &clk_lock, + .table = mux_table_vpu, + .hw.init = &(struct clk_init_data){ + .name = "vpu_1_sel", + .ops = &clk_mux_ops, + /* + * bits 25:26 selects from 4 possible parents: + * fclk_div4, fclk_div3, fclk_div5, fclk_div7, + */ + .parent_names = gxbb_vpu_parent_names, + .num_parents = ARRAY_SIZE(gxbb_vpu_parent_names), + .flags = CLK_SET_RATE_NO_REPARENT, + }, +}; + +static struct clk_divider gxbb_vpu_1_div = { + .reg = (void *)HHI_VPU_CLK_CNTL, + .shift = 16, + .width = 7, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data){ + .name = "vpu_1_div", + .ops = &clk_divider_ops, + .parent_names = (const char *[]){ "vpu_1_sel" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_gate gxbb_vpu_1 = { + .reg = (void *)HHI_VPU_CLK_CNTL, + .bit_idx = 24, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data) { + .name = "vpu_1", + .ops = &clk_gate_ops, + .parent_names = (const char *[]){ "vpu_1_div" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, +}; + +static struct clk_mux gxbb_vpu = { + .reg = (void *)HHI_VPU_CLK_CNTL, + .mask = 1, + .shift = 31, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data){ + .name = "vpu", + .ops = &clk_mux_ops, + /* + * bit 31 selects from 2 possible parents: + * vpu_0 or vpu_1 + */ + .parent_names = (const char *[]){ "vpu_0", "vpu_1" }, + .num_parents = 2, + .flags = CLK_SET_RATE_NO_REPARENT, + }, +}; + +/* VAPB Clock */ + +static u32 mux_table_vapb[] = {0, 1, 2, 3}; +static const char * const gxbb_vapb_parent_names[] = { + "fclk_div4", "fclk_div3", "fclk_div5", "fclk_div7" +}; + +static struct clk_mux gxbb_vapb_0_sel = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .mask = 0x3, + .shift = 9, + .lock = &clk_lock, + .table = mux_table_vapb, + .hw.init = &(struct clk_init_data){ + .name = "vapb_0_sel", + .ops = &clk_mux_ops, + /* + * bits 9:10 selects from 4 possible parents: + * fclk_div4, fclk_div3, fclk_div5, fclk_div7, + */ + .parent_names = gxbb_vapb_parent_names, + .num_parents = ARRAY_SIZE(gxbb_vapb_parent_names), + .flags = CLK_SET_RATE_NO_REPARENT, + }, +}; + +static struct clk_divider gxbb_vapb_0_div = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .shift = 0, + .width = 7, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data){ + .name = "vapb_0_div", + .ops = &clk_divider_ops, + .parent_names = (const char *[]){ "vapb_0_sel" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_gate gxbb_vapb_0 = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .bit_idx = 8, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data) { + .name = "vapb_0", + .ops = &clk_gate_ops, + .parent_names = (const char *[]){ "vapb_0_div" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, +}; + +static struct clk_mux gxbb_vapb_1_sel = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .mask = 0x3, + .shift = 25, + .lock = &clk_lock, + .table = mux_table_vapb, + .hw.init = &(struct clk_init_data){ + .name = "vapb_1_sel", + .ops = &clk_mux_ops, + /* + * bits 25:26 selects from 4 possible parents: + * fclk_div4, fclk_div3, fclk_div5, fclk_div7, + */ + .parent_names = gxbb_vapb_parent_names, + .num_parents = ARRAY_SIZE(gxbb_vapb_parent_names), + .flags = CLK_SET_RATE_NO_REPARENT, + }, +}; + +static struct clk_divider gxbb_vapb_1_div = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .shift = 16, + .width = 7, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data){ + .name = "vapb_1_div", + .ops = &clk_divider_ops, + .parent_names = (const char *[]){ "vapb_1_sel" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, + }, +}; + +static struct clk_gate gxbb_vapb_1 = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .bit_idx = 24, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data) { + .name = "vapb_1", + .ops = &clk_gate_ops, + .parent_names = (const char *[]){ "vapb_1_div" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, +}; + +static struct clk_mux gxbb_vapb_sel = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .mask = 1, + .shift = 31, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data){ + .name = "vapb_sel", + .ops = &clk_mux_ops, + /* + * bit 31 selects from 2 possible parents: + * vapb_0 or vapb_1 + */ + .parent_names = (const char *[]){ "vapb_0", "vapb_1" }, + .num_parents = 2, + .flags = CLK_SET_RATE_NO_REPARENT, + }, +}; + +static struct clk_gate gxbb_vapb = { + .reg = (void *)HHI_VAPBCLK_CNTL, + .bit_idx = 30, + .lock = &clk_lock, + .hw.init = &(struct clk_init_data) { + .name = "vapb", + .ops = &clk_gate_ops, + .parent_names = (const char *[]){ "vapb_sel" }, + .num_parents = 1, + .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, +}; + /* Everything Else (EE) domain gates */ static MESON_GATE(gxbb_ddr, HHI_GCLK_MPEG0, 0); static MESON_GATE(gxbb_dos, HHI_GCLK_MPEG0, 1); @@ -1349,6 +1596,21 @@ static struct clk_hw_onecell_data gxbb_hw_onecell_data = { [CLKID_SD_EMMC_C_CLK0_SEL] = &gxbb_sd_emmc_c_clk0_sel.hw, [CLKID_SD_EMMC_C_CLK0_DIV] = &gxbb_sd_emmc_c_clk0_div.hw, [CLKID_SD_EMMC_C_CLK0] = &gxbb_sd_emmc_c_clk0.hw, + [CLKID_VPU_0_SEL] = &gxbb_vpu_0_sel.hw, + [CLKID_VPU_0_DIV] = &gxbb_vpu_0_div.hw, + [CLKID_VPU_0] = &gxbb_vpu_0.hw, + [CLKID_VPU_1_SEL] = &gxbb_vpu_1_sel.hw, + [CLKID_VPU_1_DIV] = &gxbb_vpu_1_div.hw, + [CLKID_VPU_1] = &gxbb_vpu_1.hw, + [CLKID_VPU] = &gxbb_vpu.hw, + [CLKID_VAPB_0_SEL] = &gxbb_vapb_0_sel.hw, + [CLKID_VAPB_0_DIV] = &gxbb_vapb_0_div.hw, + [CLKID_VAPB_0] = &gxbb_vapb_0.hw, + [CLKID_VAPB_1_SEL] = &gxbb_vapb_1_sel.hw, + [CLKID_VAPB_1_DIV] = &gxbb_vapb_1_div.hw, + [CLKID_VAPB_1] = &gxbb_vapb_1.hw, + [CLKID_VAPB_SEL] = &gxbb_vapb_sel.hw, + [CLKID_VAPB] = &gxbb_vapb.hw, [NR_CLKS] = NULL, }, .num = NR_CLKS, @@ -1481,6 +1743,21 @@ static struct clk_hw_onecell_data gxl_hw_onecell_data = { [CLKID_SD_EMMC_C_CLK0_SEL] = &gxbb_sd_emmc_c_clk0_sel.hw, [CLKID_SD_EMMC_C_CLK0_DIV] = &gxbb_sd_emmc_c_clk0_div.hw, [CLKID_SD_EMMC_C_CLK0] = &gxbb_sd_emmc_c_clk0.hw, + [CLKID_VPU_0_SEL] = &gxbb_vpu_0_sel.hw, + [CLKID_VPU_0_DIV] = &gxbb_vpu_0_div.hw, + [CLKID_VPU_0] = &gxbb_vpu_0.hw, + [CLKID_VPU_1_SEL] = &gxbb_vpu_1_sel.hw, + [CLKID_VPU_1_DIV] = &gxbb_vpu_1_div.hw, + [CLKID_VPU_1] = &gxbb_vpu_1.hw, + [CLKID_VPU] = &gxbb_vpu.hw, + [CLKID_VAPB_0_SEL] = &gxbb_vapb_0_sel.hw, + [CLKID_VAPB_0_DIV] = &gxbb_vapb_0_div.hw, + [CLKID_VAPB_0] = &gxbb_vapb_0.hw, + [CLKID_VAPB_1_SEL] = &gxbb_vapb_1_sel.hw, + [CLKID_VAPB_1_DIV] = &gxbb_vapb_1_div.hw, + [CLKID_VAPB_1] = &gxbb_vapb_1.hw, + [CLKID_VAPB_SEL] = &gxbb_vapb_sel.hw, + [CLKID_VAPB] = &gxbb_vapb.hw, [NR_CLKS] = NULL, }, .num = NR_CLKS, @@ -1600,6 +1877,11 @@ static struct clk_gate *const gxbb_clk_gates[] = { &gxbb_sd_emmc_a_clk0, &gxbb_sd_emmc_b_clk0, &gxbb_sd_emmc_c_clk0, + &gxbb_vpu_0, + &gxbb_vpu_1, + &gxbb_vapb_0, + &gxbb_vapb_1, + &gxbb_vapb, }; static struct clk_mux *const gxbb_clk_muxes[] = { @@ -1615,6 +1897,12 @@ static struct clk_mux *const gxbb_clk_muxes[] = { &gxbb_sd_emmc_a_clk0_sel, &gxbb_sd_emmc_b_clk0_sel, &gxbb_sd_emmc_c_clk0_sel, + &gxbb_vpu_0_sel, + &gxbb_vpu_1_sel, + &gxbb_vpu, + &gxbb_vapb_0_sel, + &gxbb_vapb_1_sel, + &gxbb_vapb_sel, }; static struct clk_divider *const gxbb_clk_dividers[] = { @@ -1627,6 +1915,10 @@ static struct clk_divider *const gxbb_clk_dividers[] = { &gxbb_sd_emmc_a_clk0_div, &gxbb_sd_emmc_b_clk0_div, &gxbb_sd_emmc_c_clk0_div, + &gxbb_vpu_0_div, + &gxbb_vpu_1_div, + &gxbb_vapb_0_div, + &gxbb_vapb_1_div, }; static struct meson_clk_audio_divider *const gxbb_audio_dividers[] = { diff --git a/drivers/clk/meson/gxbb.h b/drivers/clk/meson/gxbb.h index 5b1d4b374d1c..aee6fbba2004 100644 --- a/drivers/clk/meson/gxbb.h +++ b/drivers/clk/meson/gxbb.h @@ -190,8 +190,12 @@ #define CLKID_SD_EMMC_B_CLK0_DIV 121 #define CLKID_SD_EMMC_C_CLK0_SEL 123 #define CLKID_SD_EMMC_C_CLK0_DIV 124 +#define CLKID_VPU_0_DIV 127 +#define CLKID_VPU_1_DIV 130 +#define CLKID_VAPB_0_DIV 134 +#define CLKID_VAPB_1_DIV 137 -#define NR_CLKS 126 +#define NR_CLKS 141 /* include the CLKIDs that have been made part of the DT binding */ #include <dt-bindings/clock/gxbb-clkc.h> diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig index acbb38151ba1..43b5a89c4b28 100644 --- a/drivers/clk/renesas/Kconfig +++ b/drivers/clk/renesas/Kconfig @@ -15,6 +15,7 @@ config CLK_RENESAS select CLK_R8A7794 if ARCH_R8A7794 select CLK_R8A7795 if ARCH_R8A7795 select CLK_R8A7796 if ARCH_R8A7796 + select CLK_R8A77970 if ARCH_R8A77970 select CLK_R8A77995 if ARCH_R8A77995 select CLK_SH73A0 if ARCH_SH73A0 @@ -95,6 +96,10 @@ config CLK_R8A7796 bool "R-Car M3-W clock support" if COMPILE_TEST select CLK_RCAR_GEN3_CPG +config CLK_R8A77970 + bool "R-Car V3M clock support" if COMPILE_TEST + select CLK_RCAR_GEN3_CPG + config CLK_R8A77995 bool "R-Car D3 clock support" if COMPILE_TEST select CLK_RCAR_GEN3_CPG diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile index 9bda3ec5b199..306861c74a87 100644 --- a/drivers/clk/renesas/Makefile +++ b/drivers/clk/renesas/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_CLK_R8A7792) += r8a7792-cpg-mssr.o obj-$(CONFIG_CLK_R8A7794) += r8a7794-cpg-mssr.o obj-$(CONFIG_CLK_R8A7795) += r8a7795-cpg-mssr.o obj-$(CONFIG_CLK_R8A7796) += r8a7796-cpg-mssr.o +obj-$(CONFIG_CLK_R8A77970) += r8a77970-cpg-mssr.o obj-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o diff --git a/drivers/clk/renesas/clk-div6.c b/drivers/clk/renesas/clk-div6.c index 3e0040c0ac87..151336d2ba59 100644 --- a/drivers/clk/renesas/clk-div6.c +++ b/drivers/clk/renesas/clk-div6.c @@ -14,8 +14,10 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> +#include <linux/notifier.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/pm.h> #include <linux/slab.h> #include "clk-div6.h" @@ -32,6 +34,7 @@ * @src_shift: Shift to access the register bits to select the parent clock * @src_width: Number of register bits to select the parent clock (may be 0) * @parents: Array to map from valid parent clocks indices to hardware indices + * @nb: Notifier block to save/restore clock state for system resume */ struct div6_clock { struct clk_hw hw; @@ -40,6 +43,7 @@ struct div6_clock { u32 src_shift; u32 src_width; u8 *parents; + struct notifier_block nb; }; #define to_div6_clock(_hw) container_of(_hw, struct div6_clock, hw) @@ -176,6 +180,29 @@ static const struct clk_ops cpg_div6_clock_ops = { .set_rate = cpg_div6_clock_set_rate, }; +static int cpg_div6_clock_notifier_call(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct div6_clock *clock = container_of(nb, struct div6_clock, nb); + + switch (action) { + case PM_EVENT_RESUME: + /* + * TODO: This does not yet support DIV6 clocks with multiple + * parents, as the parent selection bits are not restored. + * Fortunately so far such DIV6 clocks are found only on + * R/SH-Mobile SoCs, while the resume functionality is only + * needed on R-Car Gen3. + */ + if (__clk_get_enable_count(clock->hw.clk)) + cpg_div6_clock_enable(&clock->hw); + else + cpg_div6_clock_disable(&clock->hw); + return NOTIFY_OK; + } + + return NOTIFY_DONE; +} /** * cpg_div6_register - Register a DIV6 clock @@ -183,11 +210,13 @@ static const struct clk_ops cpg_div6_clock_ops = { * @num_parents: Number of parent clocks of the DIV6 clock (1, 4, or 8) * @parent_names: Array containing the names of the parent clocks * @reg: Mapped register used to control the DIV6 clock + * @notifiers: Optional notifier chain to save/restore state for system resume */ struct clk * __init cpg_div6_register(const char *name, unsigned int num_parents, const char **parent_names, - void __iomem *reg) + void __iomem *reg, + struct raw_notifier_head *notifiers) { unsigned int valid_parents; struct clk_init_data init; @@ -258,6 +287,11 @@ struct clk * __init cpg_div6_register(const char *name, if (IS_ERR(clk)) goto free_parents; + if (notifiers) { + clock->nb.notifier_call = cpg_div6_clock_notifier_call; + raw_notifier_chain_register(notifiers, &clock->nb); + } + return clk; free_parents: @@ -301,7 +335,7 @@ static void __init cpg_div6_clock_init(struct device_node *np) for (i = 0; i < num_parents; i++) parent_names[i] = of_clk_get_parent_name(np, i); - clk = cpg_div6_register(clk_name, num_parents, parent_names, reg); + clk = cpg_div6_register(clk_name, num_parents, parent_names, reg, NULL); if (IS_ERR(clk)) { pr_err("%s: failed to register %s DIV6 clock (%ld)\n", __func__, np->name, PTR_ERR(clk)); diff --git a/drivers/clk/renesas/clk-div6.h b/drivers/clk/renesas/clk-div6.h index 567b31d2bfa5..da4807299dda 100644 --- a/drivers/clk/renesas/clk-div6.h +++ b/drivers/clk/renesas/clk-div6.h @@ -2,6 +2,7 @@ #define __RENESAS_CLK_DIV6_H__ struct clk *cpg_div6_register(const char *name, unsigned int num_parents, - const char **parent_names, void __iomem *reg); + const char **parent_names, void __iomem *reg, + struct raw_notifier_head *notifiers); #endif diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c index 500a9e4e03c4..c944cc421e30 100644 --- a/drivers/clk/renesas/clk-mstp.c +++ b/drivers/clk/renesas/clk-mstp.c @@ -156,10 +156,8 @@ static struct clk * __init cpg_mstp_clock_register(const char *name, struct clk *clk; clock = kzalloc(sizeof(*clock), GFP_KERNEL); - if (!clock) { - pr_err("%s: failed to allocate MSTP clock.\n", __func__); + if (!clock) return ERR_PTR(-ENOMEM); - } init.name = name; init.ops = &cpg_mstp_clock_ops; @@ -196,7 +194,6 @@ static void __init cpg_mstp_clocks_init(struct device_node *np) if (group == NULL || clks == NULL) { kfree(group); kfree(clks); - pr_err("%s: failed to allocate group\n", __func__); return; } diff --git a/drivers/clk/renesas/clk-rcar-gen2.c b/drivers/clk/renesas/clk-rcar-gen2.c index 0b2e56d0d94b..d14cbe1ca29a 100644 --- a/drivers/clk/renesas/clk-rcar-gen2.c +++ b/drivers/clk/renesas/clk-rcar-gen2.c @@ -423,7 +423,6 @@ static void __init rcar_gen2_cpg_clocks_init(struct device_node *np) /* We're leaking memory on purpose, there's no point in cleaning * up as the system won't boot anyway. */ - pr_err("%s: failed to allocate cpg\n", __func__); return; } diff --git a/drivers/clk/renesas/clk-rz.c b/drivers/clk/renesas/clk-rz.c index 5adb934326d1..127c58135c8f 100644 --- a/drivers/clk/renesas/clk-rz.c +++ b/drivers/clk/renesas/clk-rz.c @@ -1,5 +1,5 @@ /* - * rz Core CPG Clocks + * RZ/A1 Core CPG Clocks * * Copyright (C) 2013 Ideas On Board SPRL * Copyright (C) 2014 Wolfram Sang, Sang Engineering <wsa@sang-engineering.com> diff --git a/drivers/clk/renesas/r8a7745-cpg-mssr.c b/drivers/clk/renesas/r8a7745-cpg-mssr.c index 9e2360a8e14b..2859504cc866 100644 --- a/drivers/clk/renesas/r8a7745-cpg-mssr.c +++ b/drivers/clk/renesas/r8a7745-cpg-mssr.c @@ -129,6 +129,7 @@ static const struct mssr_mod_clk r8a7745_mod_clks[] __initconst = { DEF_MOD("scif2", 719, R8A7745_CLK_P), DEF_MOD("scif1", 720, R8A7745_CLK_P), DEF_MOD("scif0", 721, R8A7745_CLK_P), + DEF_MOD("du1", 723, R8A7745_CLK_ZX), DEF_MOD("du0", 724, R8A7745_CLK_ZX), DEF_MOD("ipmmu-sgx", 800, R8A7745_CLK_ZX), DEF_MOD("vin1", 810, R8A7745_CLK_ZG), diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c index 762b2f8824f1..b1d9f48eae9e 100644 --- a/drivers/clk/renesas/r8a7795-cpg-mssr.c +++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c @@ -149,7 +149,7 @@ static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = { DEF_MOD("usb-dmac1", 331, R8A7795_CLK_S3D1), DEF_MOD("rwdt", 402, R8A7795_CLK_R), DEF_MOD("intc-ex", 407, R8A7795_CLK_CP), - DEF_MOD("intc-ap", 408, R8A7795_CLK_S3D1), + DEF_MOD("intc-ap", 408, R8A7795_CLK_S0D3), DEF_MOD("audmac1", 501, R8A7795_CLK_S0D3), DEF_MOD("audmac0", 502, R8A7795_CLK_S0D3), DEF_MOD("drif7", 508, R8A7795_CLK_S3D2), @@ -348,6 +348,7 @@ static const struct mssr_mod_reparent r8a7795es1_mod_reparent[] __initconst = { { MOD_CLK_ID(217), R8A7795_CLK_S3D1 }, /* SYS-DMAC2 */ { MOD_CLK_ID(218), R8A7795_CLK_S3D1 }, /* SYS-DMAC1 */ { MOD_CLK_ID(219), R8A7795_CLK_S3D1 }, /* SYS-DMAC0 */ + { MOD_CLK_ID(408), R8A7795_CLK_S3D1 }, /* INTC-AP */ { MOD_CLK_ID(501), R8A7795_CLK_S3D1 }, /* AUDMAC1 */ { MOD_CLK_ID(502), R8A7795_CLK_S3D1 }, /* AUDMAC0 */ { MOD_CLK_ID(523), R8A7795_CLK_S3D4 }, /* PWM */ diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c index e5e7fb212288..b3767472088a 100644 --- a/drivers/clk/renesas/r8a7796-cpg-mssr.c +++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c @@ -143,7 +143,7 @@ static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = { DEF_MOD("usb-dmac1", 331, R8A7796_CLK_S3D1), DEF_MOD("rwdt", 402, R8A7796_CLK_R), DEF_MOD("intc-ex", 407, R8A7796_CLK_CP), - DEF_MOD("intc-ap", 408, R8A7796_CLK_S3D1), + DEF_MOD("intc-ap", 408, R8A7796_CLK_S0D3), DEF_MOD("audmac1", 501, R8A7796_CLK_S0D3), DEF_MOD("audmac0", 502, R8A7796_CLK_S0D3), DEF_MOD("drif7", 508, R8A7796_CLK_S3D2), diff --git a/drivers/clk/renesas/r8a77970-cpg-mssr.c b/drivers/clk/renesas/r8a77970-cpg-mssr.c new file mode 100644 index 000000000000..72f98527473a --- /dev/null +++ b/drivers/clk/renesas/r8a77970-cpg-mssr.c @@ -0,0 +1,199 @@ +/* + * r8a77970 Clock Pulse Generator / Module Standby and Software Reset + * + * Copyright (C) 2017 Cogent Embedded Inc. + * + * Based on r8a7795-cpg-mssr.c + * + * Copyright (C) 2015 Glider bvba + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + */ + +#include <linux/device.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/soc/renesas/rcar-rst.h> + +#include <dt-bindings/clock/r8a77970-cpg-mssr.h> + +#include "renesas-cpg-mssr.h" +#include "rcar-gen3-cpg.h" + +enum clk_ids { + /* Core Clock Outputs exported to DT */ + LAST_DT_CORE_CLK = R8A77970_CLK_OSC, + + /* External Input Clocks */ + CLK_EXTAL, + CLK_EXTALR, + + /* Internal Core Clocks */ + CLK_MAIN, + CLK_PLL0, + CLK_PLL1, + CLK_PLL3, + CLK_PLL1_DIV2, + CLK_PLL1_DIV4, + + /* Module Clocks */ + MOD_CLK_BASE +}; + +static const struct cpg_core_clk r8a77970_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + DEF_INPUT("extalr", CLK_EXTALR), + + /* Internal Core Clocks */ + DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), + DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN), + DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), + DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), + + DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), + DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1), + + /* Core Clock Outputs */ + DEF_FIXED("ztr", R8A77970_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), + DEF_FIXED("ztrd2", R8A77970_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), + DEF_FIXED("zt", R8A77970_CLK_ZT, CLK_PLL1_DIV2, 4, 1), + DEF_FIXED("zx", R8A77970_CLK_ZX, CLK_PLL1_DIV2, 3, 1), + DEF_FIXED("s1d1", R8A77970_CLK_S1D1, CLK_PLL1_DIV2, 4, 1), + DEF_FIXED("s1d2", R8A77970_CLK_S1D2, CLK_PLL1_DIV2, 8, 1), + DEF_FIXED("s1d4", R8A77970_CLK_S1D4, CLK_PLL1_DIV2, 16, 1), + DEF_FIXED("s2d1", R8A77970_CLK_S2D1, CLK_PLL1_DIV2, 6, 1), + DEF_FIXED("s2d2", R8A77970_CLK_S2D2, CLK_PLL1_DIV2, 12, 1), + DEF_FIXED("s2d4", R8A77970_CLK_S2D4, CLK_PLL1_DIV2, 24, 1), + + DEF_FIXED("cl", R8A77970_CLK_CL, CLK_PLL1_DIV2, 48, 1), + DEF_FIXED("cp", R8A77970_CLK_CP, CLK_EXTAL, 2, 1), + + DEF_DIV6P1("canfd", R8A77970_CLK_CANFD, CLK_PLL1_DIV4, 0x244), + DEF_DIV6P1("mso", R8A77970_CLK_MSO, CLK_PLL1_DIV4, 0x014), + DEF_DIV6P1("csi0", R8A77970_CLK_CSI0, CLK_PLL1_DIV4, 0x00c), + + DEF_FIXED("osc", R8A77970_CLK_OSC, CLK_PLL1_DIV2, 12*1024, 1), + DEF_FIXED("r", R8A77970_CLK_R, CLK_EXTALR, 1, 1), +}; + +static const struct mssr_mod_clk r8a77970_mod_clks[] __initconst = { + DEF_MOD("ivcp1e", 127, R8A77970_CLK_S2D1), + DEF_MOD("scif4", 203, R8A77970_CLK_S2D4), + DEF_MOD("scif3", 204, R8A77970_CLK_S2D4), + DEF_MOD("scif1", 206, R8A77970_CLK_S2D4), + DEF_MOD("scif0", 207, R8A77970_CLK_S2D4), + DEF_MOD("msiof3", 208, R8A77970_CLK_MSO), + DEF_MOD("msiof2", 209, R8A77970_CLK_MSO), + DEF_MOD("msiof1", 210, R8A77970_CLK_MSO), + DEF_MOD("msiof0", 211, R8A77970_CLK_MSO), + DEF_MOD("mfis", 213, R8A77970_CLK_S2D2), + DEF_MOD("sys-dmac2", 217, R8A77970_CLK_S2D1), + DEF_MOD("sys-dmac1", 218, R8A77970_CLK_S2D1), + DEF_MOD("rwdt", 402, R8A77970_CLK_R), + DEF_MOD("intc-ex", 407, R8A77970_CLK_CP), + DEF_MOD("intc-ap", 408, R8A77970_CLK_S2D1), + DEF_MOD("hscif3", 517, R8A77970_CLK_S2D1), + DEF_MOD("hscif2", 518, R8A77970_CLK_S2D1), + DEF_MOD("hscif1", 519, R8A77970_CLK_S2D1), + DEF_MOD("hscif0", 520, R8A77970_CLK_S2D1), + DEF_MOD("thermal", 522, R8A77970_CLK_CP), + DEF_MOD("pwm", 523, R8A77970_CLK_S2D4), + DEF_MOD("fcpvd0", 603, R8A77970_CLK_S2D1), + DEF_MOD("vspd0", 623, R8A77970_CLK_S2D1), + DEF_MOD("csi40", 716, R8A77970_CLK_CSI0), + DEF_MOD("du0", 724, R8A77970_CLK_S2D1), + DEF_MOD("vin3", 808, R8A77970_CLK_S2D1), + DEF_MOD("vin2", 809, R8A77970_CLK_S2D1), + DEF_MOD("vin1", 810, R8A77970_CLK_S2D1), + DEF_MOD("vin0", 811, R8A77970_CLK_S2D1), + DEF_MOD("etheravb", 812, R8A77970_CLK_S2D2), + DEF_MOD("gpio5", 907, R8A77970_CLK_CP), + DEF_MOD("gpio4", 908, R8A77970_CLK_CP), + DEF_MOD("gpio3", 909, R8A77970_CLK_CP), + DEF_MOD("gpio2", 910, R8A77970_CLK_CP), + DEF_MOD("gpio1", 911, R8A77970_CLK_CP), + DEF_MOD("gpio0", 912, R8A77970_CLK_CP), + DEF_MOD("can-fd", 914, R8A77970_CLK_S2D2), + DEF_MOD("i2c4", 927, R8A77970_CLK_S2D2), + DEF_MOD("i2c3", 928, R8A77970_CLK_S2D2), + DEF_MOD("i2c2", 929, R8A77970_CLK_S2D2), + DEF_MOD("i2c1", 930, R8A77970_CLK_S2D2), + DEF_MOD("i2c0", 931, R8A77970_CLK_S2D2), +}; + +static const unsigned int r8a77970_crit_mod_clks[] __initconst = { + MOD_CLK_ID(408), /* INTC-AP (GIC) */ +}; + + +/* + * CPG Clock Data + */ + +/* + * MD EXTAL PLL0 PLL1 PLL3 + * 14 13 19 (MHz) + *------------------------------------------------- + * 0 0 0 16.66 x 1 x192 x192 x96 + * 0 0 1 16.66 x 1 x192 x192 x80 + * 0 1 0 20 x 1 x160 x160 x80 + * 0 1 1 20 x 1 x160 x160 x66 + * 1 0 0 27 / 2 x236 x236 x118 + * 1 0 1 27 / 2 x236 x236 x98 + * 1 1 0 33.33 / 2 x192 x192 x96 + * 1 1 1 33.33 / 2 x192 x192 x80 + */ +#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \ + (((md) & BIT(13)) >> 12) | \ + (((md) & BIT(19)) >> 19)) + +static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[8] __initconst = { + /* EXTAL div PLL1 mult/div PLL3 mult/div */ + { 1, 192, 1, 96, 1, }, + { 1, 192, 1, 80, 1, }, + { 1, 160, 1, 80, 1, }, + { 1, 160, 1, 66, 1, }, + { 2, 236, 1, 118, 1, }, + { 2, 236, 1, 98, 1, }, + { 2, 192, 1, 96, 1, }, + { 2, 192, 1, 80, 1, }, +}; + +static int __init r8a77970_cpg_mssr_init(struct device *dev) +{ + const struct rcar_gen3_cpg_pll_config *cpg_pll_config; + u32 cpg_mode; + int error; + + error = rcar_rst_read_mode_pins(&cpg_mode); + if (error) + return error; + + cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; + + return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode); +} + +const struct cpg_mssr_info r8a77970_cpg_mssr_info __initconst = { + /* Core Clocks */ + .core_clks = r8a77970_core_clks, + .num_core_clks = ARRAY_SIZE(r8a77970_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Module Clocks */ + .mod_clks = r8a77970_mod_clks, + .num_mod_clks = ARRAY_SIZE(r8a77970_mod_clks), + .num_hw_mod_clks = 12 * 32, + + /* Critical Module Clocks */ + .crit_mod_clks = r8a77970_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r8a77970_crit_mod_clks), + + /* Callbacks */ + .init = r8a77970_cpg_mssr_init, + .cpg_clk_register = rcar_gen3_cpg_clk_register, +}; diff --git a/drivers/clk/renesas/r8a77995-cpg-mssr.c b/drivers/clk/renesas/r8a77995-cpg-mssr.c index e594cf8ee63b..ea4cafbe6e85 100644 --- a/drivers/clk/renesas/r8a77995-cpg-mssr.c +++ b/drivers/clk/renesas/r8a77995-cpg-mssr.c @@ -127,7 +127,7 @@ static const struct mssr_mod_clk r8a77995_mod_clks[] __initconst = { DEF_MOD("usb-dmac1", 331, R8A77995_CLK_S3D1), DEF_MOD("rwdt", 402, R8A77995_CLK_R), DEF_MOD("intc-ex", 407, R8A77995_CLK_CP), - DEF_MOD("intc-ap", 408, R8A77995_CLK_S3D1), + DEF_MOD("intc-ap", 408, R8A77995_CLK_S1D2), DEF_MOD("audmac0", 502, R8A77995_CLK_S3D1), DEF_MOD("hscif3", 517, R8A77995_CLK_S3D1C), DEF_MOD("hscif0", 520, R8A77995_CLK_S3D1C), diff --git a/drivers/clk/renesas/rcar-gen2-cpg.c b/drivers/clk/renesas/rcar-gen2-cpg.c index 123b1e622179..feb14579a71b 100644 --- a/drivers/clk/renesas/rcar-gen2-cpg.c +++ b/drivers/clk/renesas/rcar-gen2-cpg.c @@ -262,10 +262,9 @@ static unsigned int cpg_pll0_div __initdata; static u32 cpg_mode __initdata; struct clk * __init rcar_gen2_cpg_clk_register(struct device *dev, - const struct cpg_core_clk *core, - const struct cpg_mssr_info *info, - struct clk **clks, - void __iomem *base) + const struct cpg_core_clk *core, const struct cpg_mssr_info *info, + struct clk **clks, void __iomem *base, + struct raw_notifier_head *notifiers) { const struct clk_div_table *table = NULL; const struct clk *parent; diff --git a/drivers/clk/renesas/rcar-gen2-cpg.h b/drivers/clk/renesas/rcar-gen2-cpg.h index 9eba07ff8b11..020a3baad015 100644 --- a/drivers/clk/renesas/rcar-gen2-cpg.h +++ b/drivers/clk/renesas/rcar-gen2-cpg.h @@ -34,9 +34,9 @@ struct rcar_gen2_cpg_pll_config { }; struct clk *rcar_gen2_cpg_clk_register(struct device *dev, - const struct cpg_core_clk *core, - const struct cpg_mssr_info *info, - struct clk **clks, void __iomem *base); + const struct cpg_core_clk *core, const struct cpg_mssr_info *info, + struct clk **clks, void __iomem *base, + struct raw_notifier_head *notifiers); int rcar_gen2_cpg_init(const struct rcar_gen2_cpg_pll_config *config, unsigned int pll0_div, u32 mode); diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c index 951105816547..0904886f5501 100644 --- a/drivers/clk/renesas/rcar-gen3-cpg.c +++ b/drivers/clk/renesas/rcar-gen3-cpg.c @@ -19,6 +19,7 @@ #include <linux/err.h> #include <linux/init.h> #include <linux/io.h> +#include <linux/pm.h> #include <linux/slab.h> #include <linux/sys_soc.h> @@ -29,6 +30,36 @@ #define CPG_PLL2CR 0x002c #define CPG_PLL4CR 0x01f4 +struct cpg_simple_notifier { + struct notifier_block nb; + void __iomem *reg; + u32 saved; +}; + +static int cpg_simple_notifier_call(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct cpg_simple_notifier *csn = + container_of(nb, struct cpg_simple_notifier, nb); + + switch (action) { + case PM_EVENT_SUSPEND: + csn->saved = readl(csn->reg); + return NOTIFY_OK; + + case PM_EVENT_RESUME: + writel(csn->saved, csn->reg); + return NOTIFY_OK; + } + return NOTIFY_DONE; +} + +static void cpg_simple_notifier_register(struct raw_notifier_head *notifiers, + struct cpg_simple_notifier *csn) +{ + csn->nb.notifier_call = cpg_simple_notifier_call; + raw_notifier_chain_register(notifiers, &csn->nb); +} /* * SDn Clock @@ -55,8 +86,8 @@ struct sd_div_table { struct sd_clock { struct clk_hw hw; - void __iomem *reg; const struct sd_div_table *div_table; + struct cpg_simple_notifier csn; unsigned int div_num; unsigned int div_min; unsigned int div_max; @@ -97,12 +128,12 @@ static const struct sd_div_table cpg_sd_div_table[] = { static int cpg_sd_clock_enable(struct clk_hw *hw) { struct sd_clock *clock = to_sd_clock(hw); - u32 val = readl(clock->reg); + u32 val = readl(clock->csn.reg); val &= ~(CPG_SD_STP_MASK); val |= clock->div_table[clock->cur_div_idx].val & CPG_SD_STP_MASK; - writel(val, clock->reg); + writel(val, clock->csn.reg); return 0; } @@ -111,14 +142,14 @@ static void cpg_sd_clock_disable(struct clk_hw *hw) { struct sd_clock *clock = to_sd_clock(hw); - writel(readl(clock->reg) | CPG_SD_STP_MASK, clock->reg); + writel(readl(clock->csn.reg) | CPG_SD_STP_MASK, clock->csn.reg); } static int cpg_sd_clock_is_enabled(struct clk_hw *hw) { struct sd_clock *clock = to_sd_clock(hw); - return !(readl(clock->reg) & CPG_SD_STP_MASK); + return !(readl(clock->csn.reg) & CPG_SD_STP_MASK); } static unsigned long cpg_sd_clock_recalc_rate(struct clk_hw *hw, @@ -170,10 +201,10 @@ static int cpg_sd_clock_set_rate(struct clk_hw *hw, unsigned long rate, clock->cur_div_idx = i; - val = readl(clock->reg); + val = readl(clock->csn.reg); val &= ~(CPG_SD_STP_MASK | CPG_SD_FC_MASK); val |= clock->div_table[i].val & (CPG_SD_STP_MASK | CPG_SD_FC_MASK); - writel(val, clock->reg); + writel(val, clock->csn.reg); return 0; } @@ -188,8 +219,8 @@ static const struct clk_ops cpg_sd_clock_ops = { }; static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core, - void __iomem *base, - const char *parent_name) + void __iomem *base, const char *parent_name, + struct raw_notifier_head *notifiers) { struct clk_init_data init; struct sd_clock *clock; @@ -207,12 +238,12 @@ static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core, init.parent_names = &parent_name; init.num_parents = 1; - clock->reg = base + core->offset; + clock->csn.reg = base + core->offset; clock->hw.init = &init; clock->div_table = cpg_sd_div_table; clock->div_num = ARRAY_SIZE(cpg_sd_div_table); - sd_fc = readl(clock->reg) & CPG_SD_FC_MASK; + sd_fc = readl(clock->csn.reg) & CPG_SD_FC_MASK; for (i = 0; i < clock->div_num; i++) if (sd_fc == (clock->div_table[i].val & CPG_SD_FC_MASK)) break; @@ -233,8 +264,13 @@ static struct clk * __init cpg_sd_clk_register(const struct cpg_core_clk *core, clk = clk_register(NULL, &clock->hw); if (IS_ERR(clk)) - kfree(clock); + goto free_clock; + cpg_simple_notifier_register(notifiers, &clock->csn); + return clk; + +free_clock: + kfree(clock); return clk; } @@ -265,7 +301,8 @@ static const struct soc_device_attribute cpg_quirks_match[] __initconst = { struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev, const struct cpg_core_clk *core, const struct cpg_mssr_info *info, - struct clk **clks, void __iomem *base) + struct clk **clks, void __iomem *base, + struct raw_notifier_head *notifiers) { const struct clk *parent; unsigned int mult = 1; @@ -331,22 +368,32 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev, break; case CLK_TYPE_GEN3_SD: - return cpg_sd_clk_register(core, base, __clk_get_name(parent)); + return cpg_sd_clk_register(core, base, __clk_get_name(parent), + notifiers); case CLK_TYPE_GEN3_R: if (cpg_quirks & RCKCR_CKSEL) { + struct cpg_simple_notifier *csn; + + csn = kzalloc(sizeof(*csn), GFP_KERNEL); + if (!csn) + return ERR_PTR(-ENOMEM); + + csn->reg = base + CPG_RCKCR; + /* * RINT is default. * Only if EXTALR is populated, we switch to it. */ - value = readl(base + CPG_RCKCR) & 0x3f; + value = readl(csn->reg) & 0x3f; if (clk_get_rate(clks[cpg_clk_extalr])) { parent = clks[cpg_clk_extalr]; value |= BIT(15); } - writel(value, base + CPG_RCKCR); + writel(value, csn->reg); + cpg_simple_notifier_register(notifiers, csn); break; } diff --git a/drivers/clk/renesas/rcar-gen3-cpg.h b/drivers/clk/renesas/rcar-gen3-cpg.h index d756ef8b78eb..2e4284399f53 100644 --- a/drivers/clk/renesas/rcar-gen3-cpg.h +++ b/drivers/clk/renesas/rcar-gen3-cpg.h @@ -44,7 +44,8 @@ struct rcar_gen3_cpg_pll_config { struct clk *rcar_gen3_cpg_clk_register(struct device *dev, const struct cpg_core_clk *core, const struct cpg_mssr_info *info, - struct clk **clks, void __iomem *base); + struct clk **clks, void __iomem *base, + struct raw_notifier_head *notifiers); int rcar_gen3_cpg_init(const struct rcar_gen3_cpg_pll_config *config, unsigned int clk_extalr, u32 mode); diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index e580a5e6346c..e3d03ffea4bc 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -26,6 +26,7 @@ #include <linux/platform_device.h> #include <linux/pm_clock.h> #include <linux/pm_domain.h> +#include <linux/psci.h> #include <linux/reset-controller.h> #include <linux/slab.h> @@ -106,6 +107,9 @@ static const u16 srcr[] = { * @num_core_clks: Number of Core Clocks in clks[] * @num_mod_clks: Number of Module Clocks in clks[] * @last_dt_core_clk: ID of the last Core Clock exported to DT + * @notifiers: Notifier chain to save/restore clock state for system resume + * @smstpcr_saved[].mask: Mask of SMSTPCR[] bits under our control + * @smstpcr_saved[].val: Saved values of SMSTPCR[] */ struct cpg_mssr_priv { #ifdef CONFIG_RESET_CONTROLLER @@ -119,6 +123,12 @@ struct cpg_mssr_priv { unsigned int num_core_clks; unsigned int num_mod_clks; unsigned int last_dt_core_clk; + + struct raw_notifier_head notifiers; + struct { + u32 mask; + u32 val; + } smstpcr_saved[ARRAY_SIZE(smstpcr)]; }; @@ -293,7 +303,8 @@ static void __init cpg_mssr_register_core_clk(const struct cpg_core_clk *core, if (core->type == CLK_TYPE_DIV6P1) { clk = cpg_div6_register(core->name, 1, &parent_name, - priv->base + core->offset); + priv->base + core->offset, + &priv->notifiers); } else { clk = clk_register_fixed_factor(NULL, core->name, parent_name, 0, @@ -304,7 +315,8 @@ static void __init cpg_mssr_register_core_clk(const struct cpg_core_clk *core, default: if (info->cpg_clk_register) clk = info->cpg_clk_register(dev, core, info, - priv->clks, priv->base); + priv->clks, priv->base, + &priv->notifiers); else dev_err(dev, "%s has unsupported core clock type %u\n", core->name, core->type); @@ -382,6 +394,7 @@ static void __init cpg_mssr_register_mod_clk(const struct mssr_mod_clk *mod, dev_dbg(dev, "Module clock %pC at %pCr Hz\n", clk, clk); priv->clks[id] = clk; + priv->smstpcr_saved[clock->index / 32].mask |= BIT(clock->index % 32); return; fail: @@ -680,6 +693,12 @@ static const struct of_device_id cpg_mssr_match[] = { .data = &r8a7796_cpg_mssr_info, }, #endif +#ifdef CONFIG_CLK_R8A77970 + { + .compatible = "renesas,r8a77970-cpg-mssr", + .data = &r8a77970_cpg_mssr_info, + }, +#endif #ifdef CONFIG_CLK_R8A77995 { .compatible = "renesas,r8a77995-cpg-mssr", @@ -694,6 +713,85 @@ static void cpg_mssr_del_clk_provider(void *data) of_clk_del_provider(data); } +#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM_PSCI_FW) +static int cpg_mssr_suspend_noirq(struct device *dev) +{ + struct cpg_mssr_priv *priv = dev_get_drvdata(dev); + unsigned int reg; + + /* This is the best we can do to check for the presence of PSCI */ + if (!psci_ops.cpu_suspend) + return 0; + + /* Save module registers with bits under our control */ + for (reg = 0; reg < ARRAY_SIZE(priv->smstpcr_saved); reg++) { + if (priv->smstpcr_saved[reg].mask) + priv->smstpcr_saved[reg].val = + readl(priv->base + SMSTPCR(reg)); + } + + /* Save core clocks */ + raw_notifier_call_chain(&priv->notifiers, PM_EVENT_SUSPEND, NULL); + + return 0; +} + +static int cpg_mssr_resume_noirq(struct device *dev) +{ + struct cpg_mssr_priv *priv = dev_get_drvdata(dev); + unsigned int reg, i; + u32 mask, oldval, newval; + + /* This is the best we can do to check for the presence of PSCI */ + if (!psci_ops.cpu_suspend) + return 0; + + /* Restore core clocks */ + raw_notifier_call_chain(&priv->notifiers, PM_EVENT_RESUME, NULL); + + /* Restore module clocks */ + for (reg = 0; reg < ARRAY_SIZE(priv->smstpcr_saved); reg++) { + mask = priv->smstpcr_saved[reg].mask; + if (!mask) + continue; + + oldval = readl(priv->base + SMSTPCR(reg)); + newval = oldval & ~mask; + newval |= priv->smstpcr_saved[reg].val & mask; + if (newval == oldval) + continue; + + writel(newval, priv->base + SMSTPCR(reg)); + + /* Wait until enabled clocks are really enabled */ + mask &= ~priv->smstpcr_saved[reg].val; + if (!mask) + continue; + + for (i = 1000; i > 0; --i) { + oldval = readl(priv->base + MSTPSR(reg)); + if (!(oldval & mask)) + break; + cpu_relax(); + } + + if (!i) + dev_warn(dev, "Failed to enable SMSTP %p[0x%x]\n", + priv->base + SMSTPCR(reg), oldval & mask); + } + + return 0; +} + +static const struct dev_pm_ops cpg_mssr_pm = { + SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(cpg_mssr_suspend_noirq, + cpg_mssr_resume_noirq) +}; +#define DEV_PM_OPS &cpg_mssr_pm +#else +#define DEV_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP && CONFIG_ARM_PSCI_FW */ + static int __init cpg_mssr_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -729,10 +827,12 @@ static int __init cpg_mssr_probe(struct platform_device *pdev) if (!clks) return -ENOMEM; + dev_set_drvdata(dev, priv); priv->clks = clks; priv->num_core_clks = info->num_total_core_clks; priv->num_mod_clks = info->num_hw_mod_clks; priv->last_dt_core_clk = info->last_dt_core_clk; + RAW_INIT_NOTIFIER_HEAD(&priv->notifiers); for (i = 0; i < nclks; i++) clks[i] = ERR_PTR(-ENOENT); @@ -769,6 +869,7 @@ static struct platform_driver cpg_mssr_driver = { .driver = { .name = "renesas-cpg-mssr", .of_match_table = cpg_mssr_match, + .pm = DEV_PM_OPS, }, }; diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h index 94b9071d1061..0745b0930308 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.h +++ b/drivers/clk/renesas/renesas-cpg-mssr.h @@ -127,7 +127,8 @@ struct cpg_mssr_info { struct clk *(*cpg_clk_register)(struct device *dev, const struct cpg_core_clk *core, const struct cpg_mssr_info *info, - struct clk **clks, void __iomem *base); + struct clk **clks, void __iomem *base, + struct raw_notifier_head *notifiers); }; extern const struct cpg_mssr_info r8a7743_cpg_mssr_info; @@ -138,6 +139,7 @@ extern const struct cpg_mssr_info r8a7792_cpg_mssr_info; extern const struct cpg_mssr_info r8a7794_cpg_mssr_info; extern const struct cpg_mssr_info r8a7795_cpg_mssr_info; extern const struct cpg_mssr_info r8a7796_cpg_mssr_info; +extern const struct cpg_mssr_info r8a77970_cpg_mssr_info; extern const struct cpg_mssr_info r8a77995_cpg_mssr_info; diff --git a/drivers/clk/rockchip/clk-cpu.c b/drivers/clk/rockchip/clk-cpu.c index 0e09684d43a5..32c19c0f1e14 100644 --- a/drivers/clk/rockchip/clk-cpu.c +++ b/drivers/clk/rockchip/clk-cpu.c @@ -322,8 +322,6 @@ struct clk *rockchip_clk_register_cpuclk(const char *name, sizeof(*rates) * nrates, GFP_KERNEL); if (!cpuclk->rate_table) { - pr_err("%s: could not allocate memory for cpuclk rates\n", - __func__); ret = -ENOMEM; goto unregister_notifier; } diff --git a/drivers/clk/rockchip/clk-rk3128.c b/drivers/clk/rockchip/clk-rk3128.c index 62d7854e4b87..5970a50671b9 100644 --- a/drivers/clk/rockchip/clk-rk3128.c +++ b/drivers/clk/rockchip/clk-rk3128.c @@ -315,13 +315,13 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { RK2928_CLKGATE_CON(10), 8, GFLAGS), GATE(SCLK_PVTM_CORE, "clk_pvtm_core", "xin24m", 0, - RK2928_CLKGATE_CON(10), 8, GFLAGS), + RK2928_CLKGATE_CON(10), 0, GFLAGS), GATE(SCLK_PVTM_GPU, "clk_pvtm_gpu", "xin24m", 0, - RK2928_CLKGATE_CON(10), 8, GFLAGS), + RK2928_CLKGATE_CON(10), 1, GFLAGS), GATE(SCLK_PVTM_FUNC, "clk_pvtm_func", "xin24m", 0, - RK2928_CLKGATE_CON(10), 8, GFLAGS), + RK2928_CLKGATE_CON(10), 2, GFLAGS), GATE(SCLK_MIPI_24M, "clk_mipi_24m", "xin24m", CLK_IGNORE_UNUSED, - RK2928_CLKGATE_CON(10), 8, GFLAGS), + RK2928_CLKGATE_CON(2), 15, GFLAGS), COMPOSITE(SCLK_SDMMC, "sclk_sdmmc0", mux_mmc_src_p, 0, RK2928_CLKSEL_CON(11), 6, 2, MFLAGS, 0, 6, DFLAGS, @@ -541,7 +541,7 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { GATE(0, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS), GATE(0, "pclk_mipiphy", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 0, GFLAGS), - GATE(0, "pclk_pmu", "pclk_pmu_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 2, GFLAGS), + GATE(0, "pclk_pmu", "pclk_pmu_pre", 0, RK2928_CLKGATE_CON(9), 2, GFLAGS), GATE(0, "pclk_pmu_niu", "pclk_pmu_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 3, GFLAGS), /* PD_MMC */ @@ -577,6 +577,8 @@ static const char *const rk3128_critical_clocks[] __initconst = { "aclk_peri", "hclk_peri", "pclk_peri", + "pclk_pmu", + "sclk_timer5", }; static struct rockchip_clk_provider *__init rk3128_common_clk_init(struct device_node *np) diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index 00ad0e5f8d66..67e73fd71f09 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -290,15 +290,15 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { RK2928_CLKSEL_CON(0), 6, 2, DFLAGS | CLK_DIVIDER_READ_ONLY, div_core_peri_t, RK2928_CLKGATE_CON(0), 0, GFLAGS), - COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_p, 0, + COMPOSITE(ACLK_VEPU, "aclk_vepu", mux_pll_src_cpll_gpll_p, 0, RK2928_CLKSEL_CON(32), 7, 1, MFLAGS, 0, 5, DFLAGS, RK2928_CLKGATE_CON(3), 9, GFLAGS), - GATE(0, "hclk_vepu", "aclk_vepu", 0, + GATE(HCLK_VEPU, "hclk_vepu", "aclk_vepu", 0, RK2928_CLKGATE_CON(3), 10, GFLAGS), - COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_p, 0, + COMPOSITE(ACLK_VDPU, "aclk_vdpu", mux_pll_src_cpll_gpll_p, 0, RK2928_CLKSEL_CON(32), 15, 1, MFLAGS, 8, 5, DFLAGS, RK2928_CLKGATE_CON(3), 11, GFLAGS), - GATE(0, "hclk_vdpu", "aclk_vdpu", 0, + GATE(HCLK_VDPU, "hclk_vdpu", "aclk_vdpu", 0, RK2928_CLKGATE_CON(3), 12, GFLAGS), GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED, @@ -644,13 +644,13 @@ static struct rockchip_clk_branch rk3066a_clk_branches[] __initdata = { GATE(HCLK_I2S1, "hclk_i2s1", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 3, GFLAGS), GATE(HCLK_I2S2, "hclk_i2s2", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 4, GFLAGS), - GATE(0, "hclk_cif1", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 6, GFLAGS), + GATE(HCLK_CIF1, "hclk_cif1", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 6, GFLAGS), GATE(0, "hclk_hdmi", "hclk_cpu", 0, RK2928_CLKGATE_CON(4), 14, GFLAGS), GATE(HCLK_OTG1, "hclk_usbotg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 14, GFLAGS), - GATE(0, "aclk_cif1", "aclk_vio1", 0, RK2928_CLKGATE_CON(6), 7, GFLAGS), + GATE(ACLK_CIF1, "aclk_cif1", "aclk_vio1", 0, RK2928_CLKGATE_CON(6), 7, GFLAGS), GATE(PCLK_TIMER1, "pclk_timer1", "pclk_cpu", 0, RK2928_CLKGATE_CON(7), 8, GFLAGS), GATE(PCLK_TIMER2, "pclk_timer2", "pclk_cpu", 0, RK2928_CLKGATE_CON(7), 9, GFLAGS), diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-rk3368.c index fc56565379dd..7c4d242f19c1 100644 --- a/drivers/clk/rockchip/clk-rk3368.c +++ b/drivers/clk/rockchip/clk-rk3368.c @@ -711,7 +711,7 @@ static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = { GATE(PCLK_SIM, "pclk_sim", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 8, GFLAGS), GATE(PCLK_PWM1, "pclk_pwm1", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 6, GFLAGS), GATE(PCLK_UART2, "pclk_uart2", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 5, GFLAGS), - GATE(0, "pclk_efuse_256", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 1, GFLAGS), + GATE(PCLK_EFUSE256, "pclk_efuse_256", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 1, GFLAGS), GATE(0, "pclk_efuse_1024", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 0, GFLAGS), /* diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile index 7afc21dc374e..8a67a3bb6803 100644 --- a/drivers/clk/samsung/Makefile +++ b/drivers/clk/samsung/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_COMMON_CLK) += clk.o clk-pll.o clk-cpu.o obj-$(CONFIG_SOC_EXYNOS3250) += clk-exynos3250.o obj-$(CONFIG_ARCH_EXYNOS4) += clk-exynos4.o +obj-$(CONFIG_ARCH_EXYNOS4) += clk-exynos4412-isp.o obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o obj-$(CONFIG_SOC_EXYNOS5260) += clk-exynos5260.o obj-$(CONFIG_SOC_EXYNOS5410) += clk-exynos5410.o diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c index 6686e8ba61f9..d2c99d8916b8 100644 --- a/drivers/clk/samsung/clk-cpu.c +++ b/drivers/clk/samsung/clk-cpu.c @@ -457,8 +457,6 @@ int __init exynos_register_cpu_clock(struct samsung_clk_provider *ctx, cpuclk->cfg = kmemdup(cfg, sizeof(*cfg) * num_cfgs, GFP_KERNEL); if (!cpuclk->cfg) { - pr_err("%s: could not allocate memory for cpuclk data\n", - __func__); ret = -ENOMEM; goto unregister_clk_nb; } diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index b117783ed404..5bfc92ee3129 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -18,6 +18,7 @@ #include <linux/syscore_ops.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <dt-bindings/clock/exynos-audss-clk.h> @@ -36,14 +37,13 @@ static struct clk *epll; #define ASS_CLK_DIV 0x4 #define ASS_CLK_GATE 0x8 -#ifdef CONFIG_PM_SLEEP static unsigned long reg_save[][2] = { { ASS_CLK_SRC, 0 }, { ASS_CLK_DIV, 0 }, { ASS_CLK_GATE, 0 }, }; -static int exynos_audss_clk_suspend(struct device *dev) +static int __maybe_unused exynos_audss_clk_suspend(struct device *dev) { int i; @@ -53,7 +53,7 @@ static int exynos_audss_clk_suspend(struct device *dev) return 0; } -static int exynos_audss_clk_resume(struct device *dev) +static int __maybe_unused exynos_audss_clk_resume(struct device *dev) { int i; @@ -62,7 +62,6 @@ static int exynos_audss_clk_resume(struct device *dev) return 0; } -#endif /* CONFIG_PM_SLEEP */ struct exynos_audss_clk_drvdata { unsigned int has_adma_clk:1; @@ -135,6 +134,7 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) const struct exynos_audss_clk_drvdata *variant; struct clk_hw **clk_table; struct resource *res; + struct device *dev = &pdev->dev; int i, ret = 0; variant = of_device_get_match_data(&pdev->dev); @@ -142,15 +142,15 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) return -EINVAL; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - reg_base = devm_ioremap_resource(&pdev->dev, res); + reg_base = devm_ioremap_resource(dev, res); if (IS_ERR(reg_base)) { - dev_err(&pdev->dev, "failed to map audss registers\n"); + dev_err(dev, "failed to map audss registers\n"); return PTR_ERR(reg_base); } epll = ERR_PTR(-ENODEV); - clk_data = devm_kzalloc(&pdev->dev, + clk_data = devm_kzalloc(dev, sizeof(*clk_data) + sizeof(*clk_data->hws) * EXYNOS_AUDSS_MAX_CLKS, GFP_KERNEL); @@ -160,8 +160,8 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) clk_data->num = variant->num_clks; clk_table = clk_data->hws; - pll_ref = devm_clk_get(&pdev->dev, "pll_ref"); - pll_in = devm_clk_get(&pdev->dev, "pll_in"); + pll_ref = devm_clk_get(dev, "pll_ref"); + pll_in = devm_clk_get(dev, "pll_in"); if (!IS_ERR(pll_ref)) mout_audss_p[0] = __clk_get_name(pll_ref); if (!IS_ERR(pll_in)) { @@ -172,88 +172,103 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) ret = clk_prepare_enable(epll); if (ret) { - dev_err(&pdev->dev, + dev_err(dev, "failed to prepare the epll clock\n"); return ret; } } } - clk_table[EXYNOS_MOUT_AUDSS] = clk_hw_register_mux(NULL, "mout_audss", + + /* + * Enable runtime PM here to allow the clock core using runtime PM + * for the registered clocks. Additionally, we increase the runtime + * PM usage count before registering the clocks, to prevent the + * clock core from runtime suspending the device. + */ + pm_runtime_get_noresume(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + clk_table[EXYNOS_MOUT_AUDSS] = clk_hw_register_mux(dev, "mout_audss", mout_audss_p, ARRAY_SIZE(mout_audss_p), CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT, reg_base + ASS_CLK_SRC, 0, 1, 0, &lock); - cdclk = devm_clk_get(&pdev->dev, "cdclk"); - sclk_audio = devm_clk_get(&pdev->dev, "sclk_audio"); + cdclk = devm_clk_get(dev, "cdclk"); + sclk_audio = devm_clk_get(dev, "sclk_audio"); if (!IS_ERR(cdclk)) mout_i2s_p[1] = __clk_get_name(cdclk); if (!IS_ERR(sclk_audio)) mout_i2s_p[2] = __clk_get_name(sclk_audio); - clk_table[EXYNOS_MOUT_I2S] = clk_hw_register_mux(NULL, "mout_i2s", + clk_table[EXYNOS_MOUT_I2S] = clk_hw_register_mux(dev, "mout_i2s", mout_i2s_p, ARRAY_SIZE(mout_i2s_p), CLK_SET_RATE_NO_REPARENT, reg_base + ASS_CLK_SRC, 2, 2, 0, &lock); - clk_table[EXYNOS_DOUT_SRP] = clk_hw_register_divider(NULL, "dout_srp", + clk_table[EXYNOS_DOUT_SRP] = clk_hw_register_divider(dev, "dout_srp", "mout_audss", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_DIV, 0, 4, 0, &lock); - clk_table[EXYNOS_DOUT_AUD_BUS] = clk_hw_register_divider(NULL, + clk_table[EXYNOS_DOUT_AUD_BUS] = clk_hw_register_divider(dev, "dout_aud_bus", "dout_srp", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_DIV, 4, 4, 0, &lock); - clk_table[EXYNOS_DOUT_I2S] = clk_hw_register_divider(NULL, "dout_i2s", + clk_table[EXYNOS_DOUT_I2S] = clk_hw_register_divider(dev, "dout_i2s", "mout_i2s", 0, reg_base + ASS_CLK_DIV, 8, 4, 0, &lock); - clk_table[EXYNOS_SRP_CLK] = clk_hw_register_gate(NULL, "srp_clk", + clk_table[EXYNOS_SRP_CLK] = clk_hw_register_gate(dev, "srp_clk", "dout_srp", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 0, 0, &lock); - clk_table[EXYNOS_I2S_BUS] = clk_hw_register_gate(NULL, "i2s_bus", + clk_table[EXYNOS_I2S_BUS] = clk_hw_register_gate(dev, "i2s_bus", "dout_aud_bus", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 2, 0, &lock); - clk_table[EXYNOS_SCLK_I2S] = clk_hw_register_gate(NULL, "sclk_i2s", + clk_table[EXYNOS_SCLK_I2S] = clk_hw_register_gate(dev, "sclk_i2s", "dout_i2s", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 3, 0, &lock); - clk_table[EXYNOS_PCM_BUS] = clk_hw_register_gate(NULL, "pcm_bus", + clk_table[EXYNOS_PCM_BUS] = clk_hw_register_gate(dev, "pcm_bus", "sclk_pcm", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 4, 0, &lock); - sclk_pcm_in = devm_clk_get(&pdev->dev, "sclk_pcm_in"); + sclk_pcm_in = devm_clk_get(dev, "sclk_pcm_in"); if (!IS_ERR(sclk_pcm_in)) sclk_pcm_p = __clk_get_name(sclk_pcm_in); - clk_table[EXYNOS_SCLK_PCM] = clk_hw_register_gate(NULL, "sclk_pcm", + clk_table[EXYNOS_SCLK_PCM] = clk_hw_register_gate(dev, "sclk_pcm", sclk_pcm_p, CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 5, 0, &lock); if (variant->has_adma_clk) { - clk_table[EXYNOS_ADMA] = clk_hw_register_gate(NULL, "adma", + clk_table[EXYNOS_ADMA] = clk_hw_register_gate(dev, "adma", "dout_srp", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 9, 0, &lock); } for (i = 0; i < clk_data->num; i++) { if (IS_ERR(clk_table[i])) { - dev_err(&pdev->dev, "failed to register clock %d\n", i); + dev_err(dev, "failed to register clock %d\n", i); ret = PTR_ERR(clk_table[i]); goto unregister; } } - ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, + ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, clk_data); if (ret) { - dev_err(&pdev->dev, "failed to add clock provider\n"); + dev_err(dev, "failed to add clock provider\n"); goto unregister; } + pm_runtime_put_sync(dev); + return 0; unregister: exynos_audss_clk_teardown(); + pm_runtime_put_sync(dev); + pm_runtime_disable(dev); if (!IS_ERR(epll)) clk_disable_unprepare(epll); @@ -266,6 +281,7 @@ static int exynos_audss_clk_remove(struct platform_device *pdev) of_clk_del_provider(pdev->dev.of_node); exynos_audss_clk_teardown(); + pm_runtime_disable(&pdev->dev); if (!IS_ERR(epll)) clk_disable_unprepare(epll); @@ -274,8 +290,10 @@ static int exynos_audss_clk_remove(struct platform_device *pdev) } static const struct dev_pm_ops exynos_audss_clk_pm_ops = { - SET_LATE_SYSTEM_SLEEP_PM_OPS(exynos_audss_clk_suspend, - exynos_audss_clk_resume) + SET_RUNTIME_PM_OPS(exynos_audss_clk_suspend, exynos_audss_clk_resume, + NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) }; static struct platform_driver exynos_audss_clk_driver = { diff --git a/drivers/clk/samsung/clk-exynos-clkout.c b/drivers/clk/samsung/clk-exynos-clkout.c index a21aea062bae..f29fb5824005 100644 --- a/drivers/clk/samsung/clk-exynos-clkout.c +++ b/drivers/clk/samsung/clk-exynos-clkout.c @@ -144,8 +144,6 @@ static void __init exynos4_clkout_init(struct device_node *node) } CLK_OF_DECLARE_DRIVER(exynos4210_clkout, "samsung,exynos4210-pmu", exynos4_clkout_init); -CLK_OF_DECLARE_DRIVER(exynos4212_clkout, "samsung,exynos4212-pmu", - exynos4_clkout_init); CLK_OF_DECLARE_DRIVER(exynos4412_clkout, "samsung,exynos4412-pmu", exynos4_clkout_init); CLK_OF_DECLARE_DRIVER(exynos3250_clkout, "samsung,exynos3250-pmu", diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index e40b77583c47..134f25f2a913 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -294,6 +294,18 @@ static const struct samsung_clk_reg_dump src_mask_suspend_e4210[] = { #define PLL_ENABLED (1 << 31) #define PLL_LOCKED (1 << 29) +static void exynos4_clk_enable_pll(u32 reg) +{ + u32 pll_con = readl(reg_base + reg); + pll_con |= PLL_ENABLED; + writel(pll_con, reg_base + reg); + + while (!(pll_con & PLL_LOCKED)) { + cpu_relax(); + pll_con = readl(reg_base + reg); + } +} + static void exynos4_clk_wait_for_pll(u32 reg) { u32 pll_con; @@ -315,6 +327,9 @@ static int exynos4_clk_suspend(void) samsung_clk_save(reg_base, exynos4_save_pll, ARRAY_SIZE(exynos4_clk_pll_regs)); + exynos4_clk_enable_pll(EPLL_CON0); + exynos4_clk_enable_pll(VPLL_CON0); + if (exynos4_soc == EXYNOS4210) { samsung_clk_save(reg_base, exynos4_save_soc, ARRAY_SIZE(exynos4210_clk_save)); @@ -535,9 +550,8 @@ static const struct samsung_fixed_factor_clock exynos4x12_fixed_factor_clks[] __ /* list of mux clocks supported in all exynos4 soc's */ static const struct samsung_mux_clock exynos4_mux_clks[] __initconst = { - MUX_FA(CLK_MOUT_APLL, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, - CLK_SET_RATE_PARENT | CLK_RECALC_NEW_RATES, 0, - "mout_apll"), + MUX_F(CLK_MOUT_APLL, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, + CLK_SET_RATE_PARENT | CLK_RECALC_NEW_RATES, 0), MUX(CLK_MOUT_HDMI, "mout_hdmi", mout_hdmi_p, SRC_TV, 0, 1), MUX(0, "mout_mfc1", sclk_evpll_p, SRC_MFC, 4, 1), MUX(0, "mout_mfc", mout_mfc_p, SRC_MFC, 8, 1), @@ -722,7 +736,7 @@ static const struct samsung_div_clock exynos4_div_clks[] __initconst = { DIV(0, "div_periph", "div_core2", DIV_CPU0, 12, 3), DIV(0, "div_atb", "mout_core", DIV_CPU0, 16, 3), DIV(0, "div_pclk_dbg", "div_atb", DIV_CPU0, 20, 3), - DIV(CLK_ARM_CLK, "div_core2", "div_core", DIV_CPU0, 28, 3), + DIV(0, "div_core2", "div_core", DIV_CPU0, 28, 3), DIV(0, "div_copy", "mout_hpm", DIV_CPU1, 0, 3), DIV(0, "div_hpm", "div_copy", DIV_CPU1, 4, 3), DIV(0, "div_clkout_cpu", "mout_clkout_cpu", CLKOUT_CMU_CPU, 8, 6), @@ -822,6 +836,12 @@ static const struct samsung_div_clock exynos4x12_div_clks[] __initconst = { DIV(0, "div_spi1_isp", "mout_spi1_isp", E4X12_DIV_ISP, 16, 4), DIV(0, "div_spi1_isp_pre", "div_spi1_isp", E4X12_DIV_ISP, 20, 8), DIV(0, "div_uart_isp", "mout_uart_isp", E4X12_DIV_ISP, 28, 4), + DIV(CLK_SCLK_FIMG2D, "sclk_fimg2d", "mout_g2d", DIV_DMC1, 0, 4), + DIV(CLK_DIV_C2C, "div_c2c", "mout_c2c", DIV_DMC1, 4, 3), + DIV(0, "div_c2c_aclk", "div_c2c", DIV_DMC1, 12, 3), +}; + +static struct samsung_div_clock exynos4x12_isp_div_clks[] = { DIV_F(CLK_DIV_ISP0, "div_isp0", "aclk200", E4X12_DIV_ISP0, 0, 3, CLK_GET_RATE_NOCACHE, 0), DIV_F(CLK_DIV_ISP1, "div_isp1", "aclk200", E4X12_DIV_ISP0, 4, 3, @@ -831,18 +851,10 @@ static const struct samsung_div_clock exynos4x12_div_clks[] __initconst = { 4, 3, CLK_GET_RATE_NOCACHE, 0), DIV_F(CLK_DIV_MCUISP1, "div_mcuisp1", "div_mcuisp0", E4X12_DIV_ISP1, 8, 3, CLK_GET_RATE_NOCACHE, 0), - DIV(CLK_SCLK_FIMG2D, "sclk_fimg2d", "mout_g2d", DIV_DMC1, 0, 4), - DIV(CLK_DIV_C2C, "div_c2c", "mout_c2c", DIV_DMC1, 4, 3), - DIV(0, "div_c2c_aclk", "div_c2c", DIV_DMC1, 12, 3), }; /* list of gate clocks supported in all exynos4 soc's */ static const struct samsung_gate_clock exynos4_gate_clks[] __initconst = { - /* - * After all Exynos4 based platforms are migrated to use device tree, - * the device name and clock alias names specified below for some - * of the clocks can be removed. - */ GATE(CLK_PPMULEFT, "ppmuleft", "aclk200", GATE_IP_LEFTBUS, 1, 0, 0), GATE(CLK_PPMURIGHT, "ppmuright", "aclk200", GATE_IP_RIGHTBUS, 1, 0, 0), GATE(CLK_SCLK_HDMI, "sclk_hdmi", "mout_hdmi", SRC_MASK_TV, 0, 0, 0), @@ -1132,6 +1144,13 @@ static const struct samsung_gate_clock exynos4x12_gate_clks[] __initconst = { 0, 0), GATE(CLK_I2S0, "i2s0", "aclk100", E4X12_GATE_IP_MAUDIO, 3, 0, 0), + GATE(CLK_G2D, "g2d", "aclk200", GATE_IP_DMC, 23, 0, 0), + GATE(CLK_SMMU_G2D, "smmu_g2d", "aclk200", GATE_IP_DMC, 24, 0, 0), + GATE(CLK_TMU_APBIF, "tmu_apbif", "aclk100", E4X12_GATE_IP_PERIR, 17, 0, + 0), +}; + +static struct samsung_gate_clock exynos4x12_isp_gate_clks[] = { GATE(CLK_FIMC_ISP, "isp", "aclk200", E4X12_GATE_ISP0, 0, CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0), GATE(CLK_FIMC_DRC, "drc", "aclk200", E4X12_GATE_ISP0, 1, @@ -1184,24 +1203,6 @@ static const struct samsung_gate_clock exynos4x12_gate_clks[] __initconst = { CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0), GATE(CLK_SPI1_ISP, "spi1_isp", "aclk200", E4X12_GATE_ISP1, 13, CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0), - GATE(CLK_G2D, "g2d", "aclk200", GATE_IP_DMC, 23, 0, 0), - GATE(CLK_SMMU_G2D, "smmu_g2d", "aclk200", GATE_IP_DMC, 24, 0, 0), - GATE(CLK_TMU_APBIF, "tmu_apbif", "aclk100", E4X12_GATE_IP_PERIR, 17, 0, - 0), -}; - -static const struct samsung_clock_alias exynos4_aliases[] __initconst = { - ALIAS(CLK_MOUT_CORE, NULL, "moutcore"), - ALIAS(CLK_ARM_CLK, NULL, "armclk"), - ALIAS(CLK_SCLK_APLL, NULL, "mout_apll"), -}; - -static const struct samsung_clock_alias exynos4210_aliases[] __initconst = { - ALIAS(CLK_SCLK_MPLL, NULL, "mout_mpll"), -}; - -static const struct samsung_clock_alias exynos4x12_aliases[] __initconst = { - ALIAS(CLK_MOUT_MPLL_USER_C, NULL, "mout_mpll"), }; /* @@ -1340,14 +1341,14 @@ static const struct samsung_pll_rate_table exynos4x12_vpll_rates[] __initconst = }; static struct samsung_pll_clock exynos4210_plls[nr_plls] __initdata = { - [apll] = PLL_A(pll_4508, CLK_FOUT_APLL, "fout_apll", "fin_pll", - APLL_LOCK, APLL_CON0, "fout_apll", NULL), - [mpll] = PLL_A(pll_4508, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", - E4210_MPLL_LOCK, E4210_MPLL_CON0, "fout_mpll", NULL), - [epll] = PLL_A(pll_4600, CLK_FOUT_EPLL, "fout_epll", "fin_pll", - EPLL_LOCK, EPLL_CON0, "fout_epll", NULL), - [vpll] = PLL_A(pll_4650c, CLK_FOUT_VPLL, "fout_vpll", "mout_vpllsrc", - VPLL_LOCK, VPLL_CON0, "fout_vpll", NULL), + [apll] = PLL(pll_4508, CLK_FOUT_APLL, "fout_apll", "fin_pll", + APLL_LOCK, APLL_CON0, NULL), + [mpll] = PLL(pll_4508, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", + E4210_MPLL_LOCK, E4210_MPLL_CON0, NULL), + [epll] = PLL(pll_4600, CLK_FOUT_EPLL, "fout_epll", "fin_pll", + EPLL_LOCK, EPLL_CON0, NULL), + [vpll] = PLL(pll_4650c, CLK_FOUT_VPLL, "fout_vpll", "mout_vpllsrc", + VPLL_LOCK, VPLL_CON0, NULL), }; static struct samsung_pll_clock exynos4x12_plls[nr_plls] __initdata = { @@ -1401,24 +1402,6 @@ static const struct exynos_cpuclk_cfg_data e4210_armclk_d[] __initconst = { { 0 }, }; -static const struct exynos_cpuclk_cfg_data e4212_armclk_d[] __initconst = { - { 1500000, E4210_CPU_DIV0(2, 1, 6, 0, 7, 3), E4210_CPU_DIV1(2, 6), }, - { 1400000, E4210_CPU_DIV0(2, 1, 6, 0, 7, 3), E4210_CPU_DIV1(2, 6), }, - { 1300000, E4210_CPU_DIV0(2, 1, 5, 0, 7, 3), E4210_CPU_DIV1(2, 5), }, - { 1200000, E4210_CPU_DIV0(2, 1, 5, 0, 7, 3), E4210_CPU_DIV1(2, 5), }, - { 1100000, E4210_CPU_DIV0(2, 1, 4, 0, 6, 3), E4210_CPU_DIV1(2, 4), }, - { 1000000, E4210_CPU_DIV0(1, 1, 4, 0, 5, 2), E4210_CPU_DIV1(2, 4), }, - { 900000, E4210_CPU_DIV0(1, 1, 3, 0, 5, 2), E4210_CPU_DIV1(2, 3), }, - { 800000, E4210_CPU_DIV0(1, 1, 3, 0, 5, 2), E4210_CPU_DIV1(2, 3), }, - { 700000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, - { 600000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, - { 500000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, - { 400000, E4210_CPU_DIV0(1, 1, 3, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, - { 300000, E4210_CPU_DIV0(1, 1, 2, 0, 4, 2), E4210_CPU_DIV1(2, 3), }, - { 200000, E4210_CPU_DIV0(1, 1, 1, 0, 3, 1), E4210_CPU_DIV1(2, 3), }, - { 0 }, -}; - #define E4412_CPU_DIV1(cores, hpm, copy) \ (((cores) << 8) | ((hpm) << 4) | ((copy) << 0)) @@ -1512,8 +1495,6 @@ static void __init exynos4_clk_init(struct device_node *np, ARRAY_SIZE(exynos4210_div_clks)); samsung_clk_register_gate(ctx, exynos4210_gate_clks, ARRAY_SIZE(exynos4210_gate_clks)); - samsung_clk_register_alias(ctx, exynos4210_aliases, - ARRAY_SIZE(exynos4210_aliases)); samsung_clk_register_fixed_factor(ctx, exynos4210_fixed_factor_clks, ARRAY_SIZE(exynos4210_fixed_factor_clks)); @@ -1522,32 +1503,31 @@ static void __init exynos4_clk_init(struct device_node *np, e4210_armclk_d, ARRAY_SIZE(e4210_armclk_d), CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1); } else { + struct resource res; + samsung_clk_register_mux(ctx, exynos4x12_mux_clks, ARRAY_SIZE(exynos4x12_mux_clks)); samsung_clk_register_div(ctx, exynos4x12_div_clks, ARRAY_SIZE(exynos4x12_div_clks)); samsung_clk_register_gate(ctx, exynos4x12_gate_clks, ARRAY_SIZE(exynos4x12_gate_clks)); - samsung_clk_register_alias(ctx, exynos4x12_aliases, - ARRAY_SIZE(exynos4x12_aliases)); samsung_clk_register_fixed_factor(ctx, exynos4x12_fixed_factor_clks, ARRAY_SIZE(exynos4x12_fixed_factor_clks)); - if (of_machine_is_compatible("samsung,exynos4412")) { - exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", - mout_core_p4x12[0], mout_core_p4x12[1], 0x14200, - e4412_armclk_d, ARRAY_SIZE(e4412_armclk_d), - CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1); - } else { - exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", - mout_core_p4x12[0], mout_core_p4x12[1], 0x14200, - e4212_armclk_d, ARRAY_SIZE(e4212_armclk_d), - CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1); + + of_address_to_resource(np, 0, &res); + if (resource_size(&res) > 0x18000) { + samsung_clk_register_div(ctx, exynos4x12_isp_div_clks, + ARRAY_SIZE(exynos4x12_isp_div_clks)); + samsung_clk_register_gate(ctx, exynos4x12_isp_gate_clks, + ARRAY_SIZE(exynos4x12_isp_gate_clks)); } - } - samsung_clk_register_alias(ctx, exynos4_aliases, - ARRAY_SIZE(exynos4_aliases)); + exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", + mout_core_p4x12[0], mout_core_p4x12[1], 0x14200, + e4412_armclk_d, ARRAY_SIZE(e4412_armclk_d), + CLK_CPU_NEEDS_DEBUG_ALT_DIV | CLK_CPU_HAS_DIV1); + } if (soc == EXYNOS4X12) exynos4x12_core_down_clock(); diff --git a/drivers/clk/samsung/clk-exynos4412-isp.c b/drivers/clk/samsung/clk-exynos4412-isp.c new file mode 100644 index 000000000000..d5f1ccb36300 --- /dev/null +++ b/drivers/clk/samsung/clk-exynos4412-isp.c @@ -0,0 +1,179 @@ +/* + * Copyright (c) 2017 Samsung Electronics Co., Ltd. + * Author: Marek Szyprowski <m.szyprowski@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Common Clock Framework support for Exynos4412 ISP module. +*/ + +#include <dt-bindings/clock/exynos4.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> + +#include "clk.h" + +/* Exynos4x12 specific registers, which belong to ISP power domain */ +#define E4X12_DIV_ISP0 0x0300 +#define E4X12_DIV_ISP1 0x0304 +#define E4X12_GATE_ISP0 0x0800 +#define E4X12_GATE_ISP1 0x0804 + +/* + * Support for CMU save/restore across system suspends + */ +static struct samsung_clk_reg_dump *exynos4x12_save_isp; + +static const unsigned long exynos4x12_clk_isp_save[] __initconst = { + E4X12_DIV_ISP0, + E4X12_DIV_ISP1, + E4X12_GATE_ISP0, + E4X12_GATE_ISP1, +}; + +PNAME(mout_user_aclk400_mcuisp_p4x12) = { "fin_pll", "div_aclk400_mcuisp", }; + +static struct samsung_div_clock exynos4x12_isp_div_clks[] = { + DIV(CLK_ISP_DIV_ISP0, "div_isp0", "aclk200", E4X12_DIV_ISP0, 0, 3), + DIV(CLK_ISP_DIV_ISP1, "div_isp1", "aclk200", E4X12_DIV_ISP0, 4, 3), + DIV(CLK_ISP_DIV_MCUISP0, "div_mcuisp0", "aclk400_mcuisp", + E4X12_DIV_ISP1, 4, 3), + DIV(CLK_ISP_DIV_MCUISP1, "div_mcuisp1", "div_mcuisp0", + E4X12_DIV_ISP1, 8, 3), + DIV(0, "div_mpwm", "div_isp1", E4X12_DIV_ISP1, 0, 3), +}; + +static struct samsung_gate_clock exynos4x12_isp_gate_clks[] = { + GATE(CLK_ISP_FIMC_ISP, "isp", "aclk200", E4X12_GATE_ISP0, 0, 0, 0), + GATE(CLK_ISP_FIMC_DRC, "drc", "aclk200", E4X12_GATE_ISP0, 1, 0, 0), + GATE(CLK_ISP_FIMC_FD, "fd", "aclk200", E4X12_GATE_ISP0, 2, 0, 0), + GATE(CLK_ISP_FIMC_LITE0, "lite0", "aclk200", E4X12_GATE_ISP0, 3, 0, 0), + GATE(CLK_ISP_FIMC_LITE1, "lite1", "aclk200", E4X12_GATE_ISP0, 4, 0, 0), + GATE(CLK_ISP_MCUISP, "mcuisp", "aclk200", E4X12_GATE_ISP0, 5, 0, 0), + GATE(CLK_ISP_GICISP, "gicisp", "aclk200", E4X12_GATE_ISP0, 7, 0, 0), + GATE(CLK_ISP_SMMU_ISP, "smmu_isp", "aclk200", E4X12_GATE_ISP0, 8, 0, 0), + GATE(CLK_ISP_SMMU_DRC, "smmu_drc", "aclk200", E4X12_GATE_ISP0, 9, 0, 0), + GATE(CLK_ISP_SMMU_FD, "smmu_fd", "aclk200", E4X12_GATE_ISP0, 10, 0, 0), + GATE(CLK_ISP_SMMU_LITE0, "smmu_lite0", "aclk200", E4X12_GATE_ISP0, 11, + 0, 0), + GATE(CLK_ISP_SMMU_LITE1, "smmu_lite1", "aclk200", E4X12_GATE_ISP0, 12, + 0, 0), + GATE(CLK_ISP_PPMUISPMX, "ppmuispmx", "aclk200", E4X12_GATE_ISP0, 20, + 0, 0), + GATE(CLK_ISP_PPMUISPX, "ppmuispx", "aclk200", E4X12_GATE_ISP0, 21, + 0, 0), + GATE(CLK_ISP_MCUCTL_ISP, "mcuctl_isp", "aclk200", E4X12_GATE_ISP0, 23, + 0, 0), + GATE(CLK_ISP_MPWM_ISP, "mpwm_isp", "aclk200", E4X12_GATE_ISP0, 24, + 0, 0), + GATE(CLK_ISP_I2C0_ISP, "i2c0_isp", "aclk200", E4X12_GATE_ISP0, 25, + 0, 0), + GATE(CLK_ISP_I2C1_ISP, "i2c1_isp", "aclk200", E4X12_GATE_ISP0, 26, + 0, 0), + GATE(CLK_ISP_MTCADC_ISP, "mtcadc_isp", "aclk200", E4X12_GATE_ISP0, 27, + 0, 0), + GATE(CLK_ISP_PWM_ISP, "pwm_isp", "aclk200", E4X12_GATE_ISP0, 28, 0, 0), + GATE(CLK_ISP_WDT_ISP, "wdt_isp", "aclk200", E4X12_GATE_ISP0, 30, 0, 0), + GATE(CLK_ISP_UART_ISP, "uart_isp", "aclk200", E4X12_GATE_ISP0, 31, + 0, 0), + GATE(CLK_ISP_ASYNCAXIM, "asyncaxim", "aclk200", E4X12_GATE_ISP1, 0, + 0, 0), + GATE(CLK_ISP_SMMU_ISPCX, "smmu_ispcx", "aclk200", E4X12_GATE_ISP1, 4, + 0, 0), + GATE(CLK_ISP_SPI0_ISP, "spi0_isp", "aclk200", E4X12_GATE_ISP1, 12, + 0, 0), + GATE(CLK_ISP_SPI1_ISP, "spi1_isp", "aclk200", E4X12_GATE_ISP1, 13, + 0, 0), +}; + +static int __maybe_unused exynos4x12_isp_clk_suspend(struct device *dev) +{ + struct samsung_clk_provider *ctx = dev_get_drvdata(dev); + + samsung_clk_save(ctx->reg_base, exynos4x12_save_isp, + ARRAY_SIZE(exynos4x12_clk_isp_save)); + return 0; +} + +static int __maybe_unused exynos4x12_isp_clk_resume(struct device *dev) +{ + struct samsung_clk_provider *ctx = dev_get_drvdata(dev); + + samsung_clk_restore(ctx->reg_base, exynos4x12_save_isp, + ARRAY_SIZE(exynos4x12_clk_isp_save)); + return 0; +} + +static int __init exynos4x12_isp_clk_probe(struct platform_device *pdev) +{ + struct samsung_clk_provider *ctx; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct resource *res; + void __iomem *reg_base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + reg_base = devm_ioremap_resource(dev, res); + if (IS_ERR(reg_base)) { + dev_err(dev, "failed to map registers\n"); + return PTR_ERR(reg_base); + } + + exynos4x12_save_isp = samsung_clk_alloc_reg_dump(exynos4x12_clk_isp_save, + ARRAY_SIZE(exynos4x12_clk_isp_save)); + if (!exynos4x12_save_isp) + return -ENOMEM; + + ctx = samsung_clk_init(np, reg_base, CLK_NR_ISP_CLKS); + ctx->dev = dev; + + platform_set_drvdata(pdev, ctx); + + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + pm_runtime_get_sync(dev); + + samsung_clk_register_div(ctx, exynos4x12_isp_div_clks, + ARRAY_SIZE(exynos4x12_isp_div_clks)); + samsung_clk_register_gate(ctx, exynos4x12_isp_gate_clks, + ARRAY_SIZE(exynos4x12_isp_gate_clks)); + + samsung_clk_of_add_provider(np, ctx); + pm_runtime_put(dev); + + return 0; +} + +static const struct of_device_id exynos4x12_isp_clk_of_match[] = { + { .compatible = "samsung,exynos4412-isp-clock", }, + { }, +}; + +static const struct dev_pm_ops exynos4x12_isp_pm_ops = { + SET_RUNTIME_PM_OPS(exynos4x12_isp_clk_suspend, + exynos4x12_isp_clk_resume, NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; + +static struct platform_driver exynos4x12_isp_clk_driver __refdata = { + .driver = { + .name = "exynos4x12-isp-clk", + .of_match_table = exynos4x12_isp_clk_of_match, + .suppress_bind_attrs = true, + .pm = &exynos4x12_isp_pm_ops, + }, + .probe = exynos4x12_isp_clk_probe, +}; + +static int __init exynos4x12_isp_clk_init(void) +{ + return platform_driver_register(&exynos4x12_isp_clk_driver); +} +core_initcall(exynos4x12_isp_clk_init); diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 27a227d6620c..9b073c98a891 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -293,14 +293,14 @@ static const struct samsung_mux_clock exynos5250_mux_clks[] __initconst = { /* * CMU_CPU */ - MUX_FA(0, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, - CLK_SET_RATE_PARENT, 0, "mout_apll"), - MUX_A(0, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1, "mout_cpu"), + MUX_F(0, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, + CLK_SET_RATE_PARENT, 0), + MUX(0, "mout_cpu", mout_cpu_p, SRC_CPU, 16, 1), /* * CMU_CORE */ - MUX_A(0, "mout_mpll", mout_mpll_p, SRC_CORE1, 8, 1, "mout_mpll"), + MUX(0, "mout_mpll", mout_mpll_p, SRC_CORE1, 8, 1), /* * CMU_TOP @@ -391,7 +391,7 @@ static const struct samsung_div_clock exynos5250_div_clks[] __initconst = { */ DIV(0, "div_arm", "mout_cpu", DIV_CPU0, 0, 3), DIV(0, "div_apll", "mout_apll", DIV_CPU0, 24, 3), - DIV_A(0, "div_arm2", "div_arm", DIV_CPU0, 28, 3, "armclk"), + DIV(0, "div_arm2", "div_arm", DIV_CPU0, 28, 3), /* * CMU_TOP @@ -743,10 +743,10 @@ static const struct samsung_pll_rate_table apll_24mhz_tbl[] __initconst = { }; static struct samsung_pll_clock exynos5250_plls[nr_plls] __initdata = { - [apll] = PLL_A(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", - APLL_LOCK, APLL_CON0, "fout_apll", NULL), - [mpll] = PLL_A(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", - MPLL_LOCK, MPLL_CON0, "fout_mpll", NULL), + [apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", APLL_LOCK, + APLL_CON0, NULL), + [mpll] = PLL(pll_35xx, CLK_FOUT_MPLL, "fout_mpll", "fin_pll", MPLL_LOCK, + MPLL_CON0, NULL), [bpll] = PLL(pll_35xx, CLK_FOUT_BPLL, "fout_bpll", "fin_pll", BPLL_LOCK, BPLL_CON0, NULL), [gpll] = PLL(pll_35xx, CLK_FOUT_GPLL, "fout_gpll", "fin_pll", GPLL_LOCK, diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index 25601967d1cd..45d34f601e9e 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -600,8 +600,7 @@ static const struct samsung_mux_clock exynos5420_mux_clks[] __initconst = { TOP_SPARE2, 4, 1), MUX(0, "mout_aclk400_isp", mout_group1_p, SRC_TOP0, 0, 2), - MUX_A(0, "mout_aclk400_mscl", mout_group1_p, - SRC_TOP0, 4, 2, "aclk400_mscl"), + MUX(0, "mout_aclk400_mscl", mout_group1_p, SRC_TOP0, 4, 2), MUX(0, "mout_aclk400_wcore", mout_group1_p, SRC_TOP0, 16, 2), MUX(0, "mout_aclk100_noc", mout_group1_p, SRC_TOP0, 20, 2), @@ -998,7 +997,7 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = { GATE(0, "aclk400_isp", "mout_user_aclk400_isp", GATE_BUS_TOP, 16, 0, 0), GATE(0, "aclk400_mscl", "mout_user_aclk400_mscl", - GATE_BUS_TOP, 17, 0, 0), + GATE_BUS_TOP, 17, CLK_IS_CRITICAL, 0), GATE(0, "aclk200_disp1", "mout_user_aclk200_disp1", GATE_BUS_TOP, 18, CLK_IS_CRITICAL, 0), GATE(CLK_SCLK_MPHY_IXTAL24, "sclk_mphy_ixtal24", "mphy_refclk_ixtal24", diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c index 11343a597093..db270908037a 100644 --- a/drivers/clk/samsung/clk-exynos5433.c +++ b/drivers/clk/samsung/clk-exynos5433.c @@ -9,9 +9,13 @@ * Common Clock Framework support for Exynos5433 SoC. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <dt-bindings/clock/exynos5433.h> @@ -1991,6 +1995,14 @@ static const unsigned long fsys_clk_regs[] __initconst = { ENABLE_IP_FSYS1, }; +static const struct samsung_clk_reg_dump fsys_suspend_regs[] = { + { MUX_SEL_FSYS0, 0 }, + { MUX_SEL_FSYS1, 0 }, + { MUX_SEL_FSYS2, 0 }, + { MUX_SEL_FSYS3, 0 }, + { MUX_SEL_FSYS4, 0 }, +}; + static const struct samsung_fixed_rate_clock fsys_fixed_clks[] __initconst = { /* PHY clocks from USBDRD30_PHY */ FRATE(CLK_PHYCLK_USBDRD30_UDRD30_PHYCLOCK_PHY, @@ -2296,16 +2308,11 @@ static const struct samsung_cmu_info fsys_cmu_info __initconst = { .nr_clk_ids = FSYS_NR_CLK, .clk_regs = fsys_clk_regs, .nr_clk_regs = ARRAY_SIZE(fsys_clk_regs), + .suspend_regs = fsys_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(fsys_suspend_regs), + .clk_name = "aclk_fsys_200", }; -static void __init exynos5433_cmu_fsys_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &fsys_cmu_info); -} - -CLK_OF_DECLARE(exynos5433_cmu_fsys, "samsung,exynos5433-cmu-fsys", - exynos5433_cmu_fsys_init); - /* * Register offset definitions for CMU_G2D */ @@ -2335,6 +2342,10 @@ static const unsigned long g2d_clk_regs[] __initconst = { DIV_ENABLE_IP_G2D_SECURE_SMMU_G2D, }; +static const struct samsung_clk_reg_dump g2d_suspend_regs[] = { + { MUX_SEL_G2D0, 0 }, +}; + /* list of all parent clock list */ PNAME(mout_aclk_g2d_266_user_p) = { "oscclk", "aclk_g2d_266", }; PNAME(mout_aclk_g2d_400_user_p) = { "oscclk", "aclk_g2d_400", }; @@ -2420,16 +2431,11 @@ static const struct samsung_cmu_info g2d_cmu_info __initconst = { .nr_clk_ids = G2D_NR_CLK, .clk_regs = g2d_clk_regs, .nr_clk_regs = ARRAY_SIZE(g2d_clk_regs), + .suspend_regs = g2d_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(g2d_suspend_regs), + .clk_name = "aclk_g2d_400", }; -static void __init exynos5433_cmu_g2d_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &g2d_cmu_info); -} - -CLK_OF_DECLARE(exynos5433_cmu_g2d, "samsung,exynos5433-cmu-g2d", - exynos5433_cmu_g2d_init); - /* * Register offset definitions for CMU_DISP */ @@ -2494,6 +2500,18 @@ static const unsigned long disp_clk_regs[] __initconst = { CLKOUT_CMU_DISP_DIV_STAT, }; +static const struct samsung_clk_reg_dump disp_suspend_regs[] = { + /* PLL has to be enabled for suspend */ + { DISP_PLL_CON0, 0x85f40502 }, + /* ignore status of external PHY muxes during suspend to avoid hangs */ + { MUX_IGNORE_DISP2, 0x00111111 }, + { MUX_SEL_DISP0, 0 }, + { MUX_SEL_DISP1, 0 }, + { MUX_SEL_DISP2, 0 }, + { MUX_SEL_DISP3, 0 }, + { MUX_SEL_DISP4, 0 }, +}; + /* list of all parent clock list */ PNAME(mout_disp_pll_p) = { "oscclk", "fout_disp_pll", }; PNAME(mout_sclk_dsim1_user_p) = { "oscclk", "sclk_dsim1_disp", }; @@ -2841,16 +2859,11 @@ static const struct samsung_cmu_info disp_cmu_info __initconst = { .nr_clk_ids = DISP_NR_CLK, .clk_regs = disp_clk_regs, .nr_clk_regs = ARRAY_SIZE(disp_clk_regs), + .suspend_regs = disp_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(disp_suspend_regs), + .clk_name = "aclk_disp_333", }; -static void __init exynos5433_cmu_disp_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &disp_cmu_info); -} - -CLK_OF_DECLARE(exynos5433_cmu_disp, "samsung,exynos5433-cmu-disp", - exynos5433_cmu_disp_init); - /* * Register offset definitions for CMU_AUD */ @@ -2885,6 +2898,11 @@ static const unsigned long aud_clk_regs[] __initconst = { ENABLE_IP_AUD1, }; +static const struct samsung_clk_reg_dump aud_suspend_regs[] = { + { MUX_SEL_AUD0, 0 }, + { MUX_SEL_AUD1, 0 }, +}; + /* list of all parent clock list */ PNAME(mout_aud_pll_user_aud_p) = { "oscclk", "fout_aud_pll", }; PNAME(mout_sclk_aud_pcm_p) = { "mout_aud_pll_user", "ioclk_audiocdclk0",}; @@ -3011,16 +3029,11 @@ static const struct samsung_cmu_info aud_cmu_info __initconst = { .nr_clk_ids = AUD_NR_CLK, .clk_regs = aud_clk_regs, .nr_clk_regs = ARRAY_SIZE(aud_clk_regs), + .suspend_regs = aud_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(aud_suspend_regs), + .clk_name = "fout_aud_pll", }; -static void __init exynos5433_cmu_aud_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &aud_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_aud, "samsung,exynos5433-cmu-aud", - exynos5433_cmu_aud_init); - - /* * Register offset definitions for CMU_BUS{0|1|2} */ @@ -3222,6 +3235,10 @@ static const unsigned long g3d_clk_regs[] __initconst = { CLK_STOPCTRL, }; +static const struct samsung_clk_reg_dump g3d_suspend_regs[] = { + { MUX_SEL_G3D, 0 }, +}; + /* list of all parent clock list */ PNAME(mout_aclk_g3d_400_p) = { "mout_g3d_pll", "aclk_g3d_400", }; PNAME(mout_g3d_pll_p) = { "oscclk", "fout_g3d_pll", }; @@ -3295,15 +3312,11 @@ static const struct samsung_cmu_info g3d_cmu_info __initconst = { .nr_clk_ids = G3D_NR_CLK, .clk_regs = g3d_clk_regs, .nr_clk_regs = ARRAY_SIZE(g3d_clk_regs), + .suspend_regs = g3d_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(g3d_suspend_regs), + .clk_name = "aclk_g3d_400", }; -static void __init exynos5433_cmu_g3d_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &g3d_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_g3d, "samsung,exynos5433-cmu-g3d", - exynos5433_cmu_g3d_init); - /* * Register offset definitions for CMU_GSCL */ @@ -3342,6 +3355,12 @@ static const unsigned long gscl_clk_regs[] __initconst = { ENABLE_IP_GSCL_SECURE_SMMU_GSCL2, }; +static const struct samsung_clk_reg_dump gscl_suspend_regs[] = { + { MUX_SEL_GSCL, 0 }, + { ENABLE_ACLK_GSCL, 0xfff }, + { ENABLE_PCLK_GSCL, 0xff }, +}; + /* list of all parent clock list */ PNAME(aclk_gscl_111_user_p) = { "oscclk", "aclk_gscl_111", }; PNAME(aclk_gscl_333_user_p) = { "oscclk", "aclk_gscl_333", }; @@ -3436,15 +3455,11 @@ static const struct samsung_cmu_info gscl_cmu_info __initconst = { .nr_clk_ids = GSCL_NR_CLK, .clk_regs = gscl_clk_regs, .nr_clk_regs = ARRAY_SIZE(gscl_clk_regs), + .suspend_regs = gscl_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(gscl_suspend_regs), + .clk_name = "aclk_gscl_111", }; -static void __init exynos5433_cmu_gscl_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &gscl_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_gscl, "samsung,exynos5433-cmu-gscl", - exynos5433_cmu_gscl_init); - /* * Register offset definitions for CMU_APOLLO */ @@ -3970,6 +3985,11 @@ static const unsigned long mscl_clk_regs[] __initconst = { ENABLE_IP_MSCL_SECURE_SMMU_JPEG, }; +static const struct samsung_clk_reg_dump mscl_suspend_regs[] = { + { MUX_SEL_MSCL0, 0 }, + { MUX_SEL_MSCL1, 0 }, +}; + /* list of all parent clock list */ PNAME(mout_sclk_jpeg_user_p) = { "oscclk", "sclk_jpeg_mscl", }; PNAME(mout_aclk_mscl_400_user_p) = { "oscclk", "aclk_mscl_400", }; @@ -4082,15 +4102,11 @@ static const struct samsung_cmu_info mscl_cmu_info __initconst = { .nr_clk_ids = MSCL_NR_CLK, .clk_regs = mscl_clk_regs, .nr_clk_regs = ARRAY_SIZE(mscl_clk_regs), + .suspend_regs = mscl_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(mscl_suspend_regs), + .clk_name = "aclk_mscl_400", }; -static void __init exynos5433_cmu_mscl_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &mscl_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_mscl, "samsung,exynos5433-cmu-mscl", - exynos5433_cmu_mscl_init); - /* * Register offset definitions for CMU_MFC */ @@ -4120,6 +4136,10 @@ static const unsigned long mfc_clk_regs[] __initconst = { ENABLE_IP_MFC_SECURE_SMMU_MFC, }; +static const struct samsung_clk_reg_dump mfc_suspend_regs[] = { + { MUX_SEL_MFC, 0 }, +}; + PNAME(mout_aclk_mfc_400_user_p) = { "oscclk", "aclk_mfc_400", }; static const struct samsung_mux_clock mfc_mux_clks[] __initconst = { @@ -4190,15 +4210,11 @@ static const struct samsung_cmu_info mfc_cmu_info __initconst = { .nr_clk_ids = MFC_NR_CLK, .clk_regs = mfc_clk_regs, .nr_clk_regs = ARRAY_SIZE(mfc_clk_regs), + .suspend_regs = mfc_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(mfc_suspend_regs), + .clk_name = "aclk_mfc_400", }; -static void __init exynos5433_cmu_mfc_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &mfc_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_mfc, "samsung,exynos5433-cmu-mfc", - exynos5433_cmu_mfc_init); - /* * Register offset definitions for CMU_HEVC */ @@ -4228,6 +4244,10 @@ static const unsigned long hevc_clk_regs[] __initconst = { ENABLE_IP_HEVC_SECURE_SMMU_HEVC, }; +static const struct samsung_clk_reg_dump hevc_suspend_regs[] = { + { MUX_SEL_HEVC, 0 }, +}; + PNAME(mout_aclk_hevc_400_user_p) = { "oscclk", "aclk_hevc_400", }; static const struct samsung_mux_clock hevc_mux_clks[] __initconst = { @@ -4300,15 +4320,11 @@ static const struct samsung_cmu_info hevc_cmu_info __initconst = { .nr_clk_ids = HEVC_NR_CLK, .clk_regs = hevc_clk_regs, .nr_clk_regs = ARRAY_SIZE(hevc_clk_regs), + .suspend_regs = hevc_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(hevc_suspend_regs), + .clk_name = "aclk_hevc_400", }; -static void __init exynos5433_cmu_hevc_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &hevc_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_hevc, "samsung,exynos5433-cmu-hevc", - exynos5433_cmu_hevc_init); - /* * Register offset definitions for CMU_ISP */ @@ -4342,6 +4358,10 @@ static const unsigned long isp_clk_regs[] __initconst = { ENABLE_IP_ISP3, }; +static const struct samsung_clk_reg_dump isp_suspend_regs[] = { + { MUX_SEL_ISP, 0 }, +}; + PNAME(mout_aclk_isp_dis_400_user_p) = { "oscclk", "aclk_isp_dis_400", }; PNAME(mout_aclk_isp_400_user_p) = { "oscclk", "aclk_isp_400", }; @@ -4553,15 +4573,11 @@ static const struct samsung_cmu_info isp_cmu_info __initconst = { .nr_clk_ids = ISP_NR_CLK, .clk_regs = isp_clk_regs, .nr_clk_regs = ARRAY_SIZE(isp_clk_regs), + .suspend_regs = isp_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(isp_suspend_regs), + .clk_name = "aclk_isp_400", }; -static void __init exynos5433_cmu_isp_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &isp_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_isp, "samsung,exynos5433-cmu-isp", - exynos5433_cmu_isp_init); - /* * Register offset definitions for CMU_CAM0 */ @@ -4625,6 +4641,15 @@ static const unsigned long cam0_clk_regs[] __initconst = { ENABLE_IP_CAM02, ENABLE_IP_CAM03, }; + +static const struct samsung_clk_reg_dump cam0_suspend_regs[] = { + { MUX_SEL_CAM00, 0 }, + { MUX_SEL_CAM01, 0 }, + { MUX_SEL_CAM02, 0 }, + { MUX_SEL_CAM03, 0 }, + { MUX_SEL_CAM04, 0 }, +}; + PNAME(mout_aclk_cam0_333_user_p) = { "oscclk", "aclk_cam0_333", }; PNAME(mout_aclk_cam0_400_user_p) = { "oscclk", "aclk_cam0_400", }; PNAME(mout_aclk_cam0_552_user_p) = { "oscclk", "aclk_cam0_552", }; @@ -5030,15 +5055,11 @@ static const struct samsung_cmu_info cam0_cmu_info __initconst = { .nr_clk_ids = CAM0_NR_CLK, .clk_regs = cam0_clk_regs, .nr_clk_regs = ARRAY_SIZE(cam0_clk_regs), + .suspend_regs = cam0_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(cam0_suspend_regs), + .clk_name = "aclk_cam0_400", }; -static void __init exynos5433_cmu_cam0_init(struct device_node *np) -{ - samsung_cmu_register_one(np, &cam0_cmu_info); -} -CLK_OF_DECLARE(exynos5433_cmu_cam0, "samsung,exynos5433-cmu-cam0", - exynos5433_cmu_cam0_init); - /* * Register offset definitions for CMU_CAM1 */ @@ -5085,6 +5106,12 @@ static const unsigned long cam1_clk_regs[] __initconst = { ENABLE_IP_CAM12, }; +static const struct samsung_clk_reg_dump cam1_suspend_regs[] = { + { MUX_SEL_CAM10, 0 }, + { MUX_SEL_CAM11, 0 }, + { MUX_SEL_CAM12, 0 }, +}; + PNAME(mout_sclk_isp_uart_user_p) = { "oscclk", "sclk_isp_uart_cam1", }; PNAME(mout_sclk_isp_spi1_user_p) = { "oscclk", "sclk_isp_spi1_cam1", }; PNAME(mout_sclk_isp_spi0_user_p) = { "oscclk", "sclk_isp_spi0_cam1", }; @@ -5403,11 +5430,223 @@ static const struct samsung_cmu_info cam1_cmu_info __initconst = { .nr_clk_ids = CAM1_NR_CLK, .clk_regs = cam1_clk_regs, .nr_clk_regs = ARRAY_SIZE(cam1_clk_regs), + .suspend_regs = cam1_suspend_regs, + .nr_suspend_regs = ARRAY_SIZE(cam1_suspend_regs), + .clk_name = "aclk_cam1_400", +}; + + +struct exynos5433_cmu_data { + struct samsung_clk_reg_dump *clk_save; + unsigned int nr_clk_save; + const struct samsung_clk_reg_dump *clk_suspend; + unsigned int nr_clk_suspend; + + struct clk *clk; + struct clk **pclks; + int nr_pclks; + + /* must be the last entry */ + struct samsung_clk_provider ctx; +}; + +static int __maybe_unused exynos5433_cmu_suspend(struct device *dev) +{ + struct exynos5433_cmu_data *data = dev_get_drvdata(dev); + int i; + + samsung_clk_save(data->ctx.reg_base, data->clk_save, + data->nr_clk_save); + + for (i = 0; i < data->nr_pclks; i++) + clk_prepare_enable(data->pclks[i]); + + /* for suspend some registers have to be set to certain values */ + samsung_clk_restore(data->ctx.reg_base, data->clk_suspend, + data->nr_clk_suspend); + + for (i = 0; i < data->nr_pclks; i++) + clk_disable_unprepare(data->pclks[i]); + + clk_disable_unprepare(data->clk); + + return 0; +} + +static int __maybe_unused exynos5433_cmu_resume(struct device *dev) +{ + struct exynos5433_cmu_data *data = dev_get_drvdata(dev); + int i; + + clk_prepare_enable(data->clk); + + for (i = 0; i < data->nr_pclks; i++) + clk_prepare_enable(data->pclks[i]); + + samsung_clk_restore(data->ctx.reg_base, data->clk_save, + data->nr_clk_save); + + for (i = 0; i < data->nr_pclks; i++) + clk_disable_unprepare(data->pclks[i]); + + return 0; +} + +static int __init exynos5433_cmu_probe(struct platform_device *pdev) +{ + const struct samsung_cmu_info *info; + struct exynos5433_cmu_data *data; + struct samsung_clk_provider *ctx; + struct device *dev = &pdev->dev; + struct resource *res; + void __iomem *reg_base; + int i; + + info = of_device_get_match_data(dev); + + data = devm_kzalloc(dev, sizeof(*data) + + sizeof(*data->ctx.clk_data.hws) * info->nr_clk_ids, + GFP_KERNEL); + if (!data) + return -ENOMEM; + ctx = &data->ctx; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + reg_base = devm_ioremap_resource(dev, res); + if (IS_ERR(reg_base)) { + dev_err(dev, "failed to map registers\n"); + return PTR_ERR(reg_base); + } + + for (i = 0; i < info->nr_clk_ids; ++i) + ctx->clk_data.hws[i] = ERR_PTR(-ENOENT); + + ctx->clk_data.num = info->nr_clk_ids; + ctx->reg_base = reg_base; + ctx->dev = dev; + spin_lock_init(&ctx->lock); + + data->clk_save = samsung_clk_alloc_reg_dump(info->clk_regs, + info->nr_clk_regs); + data->nr_clk_save = info->nr_clk_regs; + data->clk_suspend = info->suspend_regs; + data->nr_clk_suspend = info->nr_suspend_regs; + data->nr_pclks = of_count_phandle_with_args(dev->of_node, "clocks", + "#clock-cells"); + if (data->nr_pclks > 0) { + data->pclks = devm_kcalloc(dev, sizeof(struct clk *), + data->nr_pclks, GFP_KERNEL); + + for (i = 0; i < data->nr_pclks; i++) { + struct clk *clk = of_clk_get(dev->of_node, i); + + if (IS_ERR(clk)) + return PTR_ERR(clk); + data->pclks[i] = clk; + } + } + + if (info->clk_name) + data->clk = clk_get(dev, info->clk_name); + clk_prepare_enable(data->clk); + + platform_set_drvdata(pdev, data); + + /* + * Enable runtime PM here to allow the clock core using runtime PM + * for the registered clocks. Additionally, we increase the runtime + * PM usage count before registering the clocks, to prevent the + * clock core from runtime suspending the device. + */ + pm_runtime_get_noresume(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + if (info->pll_clks) + samsung_clk_register_pll(ctx, info->pll_clks, info->nr_pll_clks, + reg_base); + if (info->mux_clks) + samsung_clk_register_mux(ctx, info->mux_clks, + info->nr_mux_clks); + if (info->div_clks) + samsung_clk_register_div(ctx, info->div_clks, + info->nr_div_clks); + if (info->gate_clks) + samsung_clk_register_gate(ctx, info->gate_clks, + info->nr_gate_clks); + if (info->fixed_clks) + samsung_clk_register_fixed_rate(ctx, info->fixed_clks, + info->nr_fixed_clks); + if (info->fixed_factor_clks) + samsung_clk_register_fixed_factor(ctx, info->fixed_factor_clks, + info->nr_fixed_factor_clks); + + samsung_clk_of_add_provider(dev->of_node, ctx); + pm_runtime_put_sync(dev); + + return 0; +} + +static const struct of_device_id exynos5433_cmu_of_match[] = { + { + .compatible = "samsung,exynos5433-cmu-aud", + .data = &aud_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-cam0", + .data = &cam0_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-cam1", + .data = &cam1_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-disp", + .data = &disp_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-g2d", + .data = &g2d_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-g3d", + .data = &g3d_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-fsys", + .data = &fsys_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-gscl", + .data = &gscl_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-mfc", + .data = &mfc_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-hevc", + .data = &hevc_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-isp", + .data = &isp_cmu_info, + }, { + .compatible = "samsung,exynos5433-cmu-mscl", + .data = &mscl_cmu_info, + }, { + }, +}; + +static const struct dev_pm_ops exynos5433_cmu_pm_ops = { + SET_RUNTIME_PM_OPS(exynos5433_cmu_suspend, exynos5433_cmu_resume, + NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; + +static struct platform_driver exynos5433_cmu_driver __refdata = { + .driver = { + .name = "exynos5433-cmu", + .of_match_table = exynos5433_cmu_of_match, + .suppress_bind_attrs = true, + .pm = &exynos5433_cmu_pm_ops, + }, + .probe = exynos5433_cmu_probe, }; -static void __init exynos5433_cmu_cam1_init(struct device_node *np) +static int __init exynos5433_cmu_init(void) { - samsung_cmu_register_one(np, &cam1_cmu_info); + return platform_driver_register(&exynos5433_cmu_driver); } -CLK_OF_DECLARE(exynos5433_cmu_cam1, "samsung,exynos5433-cmu-cam1", - exynos5433_cmu_cam1_init); +core_initcall(exynos5433_cmu_init); diff --git a/drivers/clk/samsung/clk-exynos5440.c b/drivers/clk/samsung/clk-exynos5440.c index a80f3ef20801..b08bd54c5e76 100644 --- a/drivers/clk/samsung/clk-exynos5440.c +++ b/drivers/clk/samsung/clk-exynos5440.c @@ -53,8 +53,7 @@ static const struct samsung_fixed_factor_clock exynos5440_fixed_factor_clks[] __ /* mux clocks */ static const struct samsung_mux_clock exynos5440_mux_clks[] __initconst = { MUX(0, "mout_spi", mout_spi_p, MISC_DOUT1, 5, 1), - MUX_A(CLK_ARM_CLK, "arm_clk", mout_armclk_p, - CPU_CLK_STATUS, 0, 1, "armclk"), + MUX(CLK_ARM_CLK, "arm_clk", mout_armclk_p, CPU_CLK_STATUS, 0, 1), }; /* divider clocks */ @@ -117,6 +116,13 @@ static const struct samsung_pll_clock exynos5440_plls[] __initconst = { PLL(pll_2550x, CLK_CPLLB, "cpllb", "xtal", 0, 0x50, NULL), }; +/* + * Clock aliases for legacy clkdev look-up. + */ +static const struct samsung_clock_alias exynos5440_aliases[] __initconst = { + ALIAS(CLK_ARM_CLK, NULL, "armclk"), +}; + /* register exynos5440 clocks */ static void __init exynos5440_clk_init(struct device_node *np) { @@ -147,6 +153,8 @@ static void __init exynos5440_clk_init(struct device_node *np) ARRAY_SIZE(exynos5440_div_clks)); samsung_clk_register_gate(ctx, exynos5440_gate_clks, ARRAY_SIZE(exynos5440_gate_clks)); + samsung_clk_register_alias(ctx, exynos5440_aliases, + ARRAY_SIZE(exynos5440_aliases)); samsung_clk_of_add_provider(np, ctx); diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index 037c61484098..1c4c7a3039f1 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -1388,7 +1388,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, pll->lock_reg = base + pll_clk->lock_offset; pll->con_reg = base + pll_clk->con_offset; - ret = clk_hw_register(NULL, &pll->hw); + ret = clk_hw_register(ctx->dev, &pll->hw); if (ret) { pr_err("%s: failed to register pll clock %s : %d\n", __func__, pll_clk->name, ret); @@ -1397,15 +1397,6 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, } samsung_clk_add_lookup(ctx, &pll->hw, pll_clk->id); - - if (!pll_clk->alias) - return; - - ret = clk_hw_register_clkdev(&pll->hw, pll_clk->alias, - pll_clk->dev_name); - if (ret) - pr_err("%s: failed to register lookup for %s : %d", - __func__, pll_clk->name, ret); } void __init samsung_clk_register_pll(struct samsung_clk_provider *ctx, diff --git a/drivers/clk/samsung/clk-s3c2443.c b/drivers/clk/samsung/clk-s3c2443.c index abb935c42916..d94b85a42356 100644 --- a/drivers/clk/samsung/clk-s3c2443.c +++ b/drivers/clk/samsung/clk-s3c2443.c @@ -117,8 +117,8 @@ struct samsung_mux_clock s3c2443_common_muxes[] __initdata = { MUX(0, "epllref", epllref_p, CLKSRC, 7, 2), MUX(ESYSCLK, "esysclk", esysclk_p, CLKSRC, 6, 1), MUX(0, "mpllref", mpllref_p, CLKSRC, 3, 1), - MUX_A(MSYSCLK, "msysclk", msysclk_p, CLKSRC, 4, 1, "msysclk"), - MUX_A(ARMCLK, "armclk", armclk_p, CLKDIV0, 13, 1, "armclk"), + MUX(MSYSCLK, "msysclk", msysclk_p, CLKSRC, 4, 1), + MUX(ARMCLK, "armclk", armclk_p, CLKDIV0, 13, 1), MUX(0, "mux_i2s0", i2s0_p, CLKSRC, 14, 2), }; @@ -189,6 +189,10 @@ struct samsung_gate_clock s3c2443_common_gates[] __initdata = { }; struct samsung_clock_alias s3c2443_common_aliases[] __initdata = { + ALIAS(MSYSCLK, NULL, "msysclk"), + ALIAS(ARMCLK, NULL, "armclk"), + ALIAS(MPLL, NULL, "mpll"), + ALIAS(EPLL, NULL, "epll"), ALIAS(HCLK, NULL, "hclk"), ALIAS(HCLK_SSMC, NULL, "nand"), ALIAS(PCLK_UART0, "s3c2440-uart.0", "uart"), @@ -221,9 +225,9 @@ struct samsung_clock_alias s3c2443_common_aliases[] __initdata = { /* S3C2416 specific clocks */ static struct samsung_pll_clock s3c2416_pll_clks[] __initdata = { - [mpll] = PLL(pll_6552_s3c2416, 0, "mpll", "mpllref", + [mpll] = PLL(pll_6552_s3c2416, MPLL, "mpll", "mpllref", LOCKCON0, MPLLCON, NULL), - [epll] = PLL(pll_6553, 0, "epll", "epllref", + [epll] = PLL(pll_6553, EPLL, "epll", "epllref", LOCKCON1, EPLLCON, NULL), }; @@ -275,9 +279,9 @@ struct samsung_clock_alias s3c2416_aliases[] __initdata = { /* S3C2443 specific clocks */ static struct samsung_pll_clock s3c2443_pll_clks[] __initdata = { - [mpll] = PLL(pll_3000, 0, "mpll", "mpllref", + [mpll] = PLL(pll_3000, MPLL, "mpll", "mpllref", LOCKCON0, MPLLCON, NULL), - [epll] = PLL(pll_2126, 0, "epll", "epllref", + [epll] = PLL(pll_2126, EPLL, "epll", "epllref", LOCKCON1, EPLLCON, NULL), }; diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index 7ce0fa86c5ff..8634884aa11c 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -134,7 +134,7 @@ void __init samsung_clk_register_fixed_rate(struct samsung_clk_provider *ctx, unsigned int idx, ret; for (idx = 0; idx < nr_clk; idx++, list++) { - clk_hw = clk_hw_register_fixed_rate(NULL, list->name, + clk_hw = clk_hw_register_fixed_rate(ctx->dev, list->name, list->parent_name, list->flags, list->fixed_rate); if (IS_ERR(clk_hw)) { pr_err("%s: failed to register clock %s\n", __func__, @@ -163,7 +163,7 @@ void __init samsung_clk_register_fixed_factor(struct samsung_clk_provider *ctx, unsigned int idx; for (idx = 0; idx < nr_clk; idx++, list++) { - clk_hw = clk_hw_register_fixed_factor(NULL, list->name, + clk_hw = clk_hw_register_fixed_factor(ctx->dev, list->name, list->parent_name, list->flags, list->mult, list->div); if (IS_ERR(clk_hw)) { pr_err("%s: failed to register clock %s\n", __func__, @@ -181,10 +181,10 @@ void __init samsung_clk_register_mux(struct samsung_clk_provider *ctx, unsigned int nr_clk) { struct clk_hw *clk_hw; - unsigned int idx, ret; + unsigned int idx; for (idx = 0; idx < nr_clk; idx++, list++) { - clk_hw = clk_hw_register_mux(NULL, list->name, + clk_hw = clk_hw_register_mux(ctx->dev, list->name, list->parent_names, list->num_parents, list->flags, ctx->reg_base + list->offset, list->shift, list->width, list->mux_flags, &ctx->lock); @@ -195,15 +195,6 @@ void __init samsung_clk_register_mux(struct samsung_clk_provider *ctx, } samsung_clk_add_lookup(ctx, clk_hw, list->id); - - /* register a clock lookup only if a clock alias is specified */ - if (list->alias) { - ret = clk_hw_register_clkdev(clk_hw, list->alias, - list->dev_name); - if (ret) - pr_err("%s: failed to register lookup %s\n", - __func__, list->alias); - } } } @@ -213,17 +204,17 @@ void __init samsung_clk_register_div(struct samsung_clk_provider *ctx, unsigned int nr_clk) { struct clk_hw *clk_hw; - unsigned int idx, ret; + unsigned int idx; for (idx = 0; idx < nr_clk; idx++, list++) { if (list->table) - clk_hw = clk_hw_register_divider_table(NULL, + clk_hw = clk_hw_register_divider_table(ctx->dev, list->name, list->parent_name, list->flags, ctx->reg_base + list->offset, list->shift, list->width, list->div_flags, list->table, &ctx->lock); else - clk_hw = clk_hw_register_divider(NULL, list->name, + clk_hw = clk_hw_register_divider(ctx->dev, list->name, list->parent_name, list->flags, ctx->reg_base + list->offset, list->shift, list->width, list->div_flags, &ctx->lock); @@ -234,15 +225,6 @@ void __init samsung_clk_register_div(struct samsung_clk_provider *ctx, } samsung_clk_add_lookup(ctx, clk_hw, list->id); - - /* register a clock lookup only if a clock alias is specified */ - if (list->alias) { - ret = clk_hw_register_clkdev(clk_hw, list->alias, - list->dev_name); - if (ret) - pr_err("%s: failed to register lookup %s\n", - __func__, list->alias); - } } } @@ -252,10 +234,10 @@ void __init samsung_clk_register_gate(struct samsung_clk_provider *ctx, unsigned int nr_clk) { struct clk_hw *clk_hw; - unsigned int idx, ret; + unsigned int idx; for (idx = 0; idx < nr_clk; idx++, list++) { - clk_hw = clk_hw_register_gate(NULL, list->name, list->parent_name, + clk_hw = clk_hw_register_gate(ctx->dev, list->name, list->parent_name, list->flags, ctx->reg_base + list->offset, list->bit_idx, list->gate_flags, &ctx->lock); if (IS_ERR(clk_hw)) { @@ -264,15 +246,6 @@ void __init samsung_clk_register_gate(struct samsung_clk_provider *ctx, continue; } - /* register a clock lookup only if a clock alias is specified */ - if (list->alias) { - ret = clk_hw_register_clkdev(clk_hw, list->alias, - list->dev_name); - if (ret) - pr_err("%s: failed to register lookup %s\n", - __func__, list->alias); - } - samsung_clk_add_lookup(ctx, clk_hw, list->id); } } diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index b8ca0dd3a38b..3880d2f9d582 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -24,6 +24,7 @@ */ struct samsung_clk_provider { void __iomem *reg_base; + struct device *dev; spinlock_t lock; /* clk_data must be the last entry due to variable lenght 'hws' array */ struct clk_hw_onecell_data clk_data; @@ -106,7 +107,6 @@ struct samsung_fixed_factor_clock { /** * struct samsung_mux_clock: information about mux clock * @id: platform specific id of the clock. - * @dev_name: name of the device to which this clock belongs. * @name: name of this mux clock. * @parent_names: array of pointer to parent clock names. * @num_parents: number of parents listed in @parent_names. @@ -115,11 +115,9 @@ struct samsung_fixed_factor_clock { * @shift: starting bit location of the mux control bit-field in @reg. * @width: width of the mux control bit-field in @reg. * @mux_flags: flags for mux-type clock. - * @alias: optional clock alias name to be assigned to this clock. */ struct samsung_mux_clock { unsigned int id; - const char *dev_name; const char *name; const char *const *parent_names; u8 num_parents; @@ -128,13 +126,11 @@ struct samsung_mux_clock { u8 shift; u8 width; u8 mux_flags; - const char *alias; }; -#define __MUX(_id, dname, cname, pnames, o, s, w, f, mf, a) \ +#define __MUX(_id, cname, pnames, o, s, w, f, mf) \ { \ .id = _id, \ - .dev_name = dname, \ .name = cname, \ .parent_names = pnames, \ .num_parents = ARRAY_SIZE(pnames), \ @@ -143,36 +139,26 @@ struct samsung_mux_clock { .shift = s, \ .width = w, \ .mux_flags = mf, \ - .alias = a, \ } #define MUX(_id, cname, pnames, o, s, w) \ - __MUX(_id, NULL, cname, pnames, o, s, w, 0, 0, NULL) - -#define MUX_A(_id, cname, pnames, o, s, w, a) \ - __MUX(_id, NULL, cname, pnames, o, s, w, 0, 0, a) + __MUX(_id, cname, pnames, o, s, w, 0, 0) #define MUX_F(_id, cname, pnames, o, s, w, f, mf) \ - __MUX(_id, NULL, cname, pnames, o, s, w, f, mf, NULL) - -#define MUX_FA(_id, cname, pnames, o, s, w, f, mf, a) \ - __MUX(_id, NULL, cname, pnames, o, s, w, f, mf, a) + __MUX(_id, cname, pnames, o, s, w, f, mf) /** * @id: platform specific id of the clock. * struct samsung_div_clock: information about div clock - * @dev_name: name of the device to which this clock belongs. * @name: name of this div clock. * @parent_name: name of the parent clock. * @flags: optional flags for basic clock. * @offset: offset of the register for configuring the div. * @shift: starting bit location of the div control bit-field in @reg. * @div_flags: flags for div-type clock. - * @alias: optional clock alias name to be assigned to this clock. */ struct samsung_div_clock { unsigned int id; - const char *dev_name; const char *name; const char *parent_name; unsigned long flags; @@ -180,14 +166,12 @@ struct samsung_div_clock { u8 shift; u8 width; u8 div_flags; - const char *alias; struct clk_div_table *table; }; -#define __DIV(_id, dname, cname, pname, o, s, w, f, df, a, t) \ +#define __DIV(_id, cname, pname, o, s, w, f, df, t) \ { \ .id = _id, \ - .dev_name = dname, \ .name = cname, \ .parent_name = pname, \ .flags = f, \ @@ -195,70 +179,51 @@ struct samsung_div_clock { .shift = s, \ .width = w, \ .div_flags = df, \ - .alias = a, \ .table = t, \ } #define DIV(_id, cname, pname, o, s, w) \ - __DIV(_id, NULL, cname, pname, o, s, w, 0, 0, NULL, NULL) - -#define DIV_A(_id, cname, pname, o, s, w, a) \ - __DIV(_id, NULL, cname, pname, o, s, w, 0, 0, a, NULL) + __DIV(_id, cname, pname, o, s, w, 0, 0, NULL) #define DIV_F(_id, cname, pname, o, s, w, f, df) \ - __DIV(_id, NULL, cname, pname, o, s, w, f, df, NULL, NULL) + __DIV(_id, cname, pname, o, s, w, f, df, NULL) #define DIV_T(_id, cname, pname, o, s, w, t) \ - __DIV(_id, NULL, cname, pname, o, s, w, 0, 0, NULL, t) + __DIV(_id, cname, pname, o, s, w, 0, 0, t) /** * struct samsung_gate_clock: information about gate clock * @id: platform specific id of the clock. - * @dev_name: name of the device to which this clock belongs. * @name: name of this gate clock. * @parent_name: name of the parent clock. * @flags: optional flags for basic clock. * @offset: offset of the register for configuring the gate. * @bit_idx: bit index of the gate control bit-field in @reg. * @gate_flags: flags for gate-type clock. - * @alias: optional clock alias name to be assigned to this clock. */ struct samsung_gate_clock { unsigned int id; - const char *dev_name; const char *name; const char *parent_name; unsigned long flags; unsigned long offset; u8 bit_idx; u8 gate_flags; - const char *alias; }; -#define __GATE(_id, dname, cname, pname, o, b, f, gf, a) \ +#define __GATE(_id, cname, pname, o, b, f, gf) \ { \ .id = _id, \ - .dev_name = dname, \ .name = cname, \ .parent_name = pname, \ .flags = f, \ .offset = o, \ .bit_idx = b, \ .gate_flags = gf, \ - .alias = a, \ } #define GATE(_id, cname, pname, o, b, f, gf) \ - __GATE(_id, NULL, cname, pname, o, b, f, gf, NULL) - -#define GATE_A(_id, cname, pname, o, b, f, gf, a) \ - __GATE(_id, NULL, cname, pname, o, b, f, gf, a) - -#define GATE_D(_id, dname, cname, pname, o, b, f, gf) \ - __GATE(_id, dname, cname, pname, o, b, f, gf, NULL) - -#define GATE_DA(_id, dname, cname, pname, o, b, f, gf, a) \ - __GATE(_id, dname, cname, pname, o, b, f, gf, a) + __GATE(_id, cname, pname, o, b, f, gf) #define PNAME(x) static const char * const x[] __initconst @@ -275,18 +240,15 @@ struct samsung_clk_reg_dump { /** * struct samsung_pll_clock: information about pll clock * @id: platform specific id of the clock. - * @dev_name: name of the device to which this clock belongs. * @name: name of this pll clock. * @parent_name: name of the parent clock. * @flags: optional flags for basic clock. * @con_offset: offset of the register for configuring the PLL. * @lock_offset: offset of the register for locking the PLL. * @type: Type of PLL to be registered. - * @alias: optional clock alias name to be assigned to this clock. */ struct samsung_pll_clock { unsigned int id; - const char *dev_name; const char *name; const char *parent_name; unsigned long flags; @@ -294,31 +256,23 @@ struct samsung_pll_clock { int lock_offset; enum samsung_pll_type type; const struct samsung_pll_rate_table *rate_table; - const char *alias; }; -#define __PLL(_typ, _id, _dname, _name, _pname, _flags, _lock, _con, \ - _rtable, _alias) \ +#define __PLL(_typ, _id, _name, _pname, _flags, _lock, _con, _rtable) \ { \ .id = _id, \ .type = _typ, \ - .dev_name = _dname, \ .name = _name, \ .parent_name = _pname, \ - .flags = CLK_GET_RATE_NOCACHE, \ + .flags = _flags, \ .con_offset = _con, \ .lock_offset = _lock, \ .rate_table = _rtable, \ - .alias = _alias, \ } #define PLL(_typ, _id, _name, _pname, _lock, _con, _rtable) \ - __PLL(_typ, _id, NULL, _name, _pname, CLK_GET_RATE_NOCACHE, \ - _lock, _con, _rtable, _name) - -#define PLL_A(_typ, _id, _name, _pname, _lock, _con, _alias, _rtable) \ - __PLL(_typ, _id, NULL, _name, _pname, CLK_GET_RATE_NOCACHE, \ - _lock, _con, _rtable, _alias) + __PLL(_typ, _id, _name, _pname, CLK_GET_RATE_NOCACHE, _lock, \ + _con, _rtable) struct samsung_clock_reg_cache { struct list_head node; @@ -352,6 +306,12 @@ struct samsung_cmu_info { /* list and number of clocks registers */ const unsigned long *clk_regs; unsigned int nr_clk_regs; + + /* list and number of clocks registers to set before suspend */ + const struct samsung_clk_reg_dump *suspend_regs; + unsigned int nr_suspend_regs; + /* name of the parent clock needed for CMU register access */ + const char *clk_name; }; extern struct samsung_clk_provider *__init samsung_clk_init( diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile index 85a0633c1eac..8504d9c6f03a 100644 --- a/drivers/clk/sunxi-ng/Makefile +++ b/drivers/clk/sunxi-ng/Makefile @@ -10,6 +10,7 @@ lib-$(CONFIG_SUNXI_CCU) += ccu_gate.o lib-$(CONFIG_SUNXI_CCU) += ccu_mux.o lib-$(CONFIG_SUNXI_CCU) += ccu_mult.o lib-$(CONFIG_SUNXI_CCU) += ccu_phase.o +lib-$(CONFIG_SUNXI_CCU) += ccu_sdm.o # Multi-factor clocks lib-$(CONFIG_SUNXI_CCU) += ccu_nk.o diff --git a/drivers/clk/sunxi-ng/ccu-sun4i-a10.c b/drivers/clk/sunxi-ng/ccu-sun4i-a10.c index 286b0049b7b6..ffa5dac221e4 100644 --- a/drivers/clk/sunxi-ng/ccu-sun4i-a10.c +++ b/drivers/clk/sunxi-ng/ccu-sun4i-a10.c @@ -28,6 +28,7 @@ #include "ccu_nkmp.h" #include "ccu_nm.h" #include "ccu_phase.h" +#include "ccu_sdm.h" #include "ccu-sun4i-a10.h" @@ -51,16 +52,29 @@ static struct ccu_nkmp pll_core_clk = { * the base (2x, 4x and 8x), and one variable divider (the one true * pll audio). * - * We don't have any need for the variable divider for now, so we just - * hardcode it to match with the clock names. + * With sigma-delta modulation for fractional-N on the audio PLL, + * we have to use specific dividers. This means the variable divider + * can no longer be used, as the audio codec requests the exact clock + * rates we support through this mechanism. So we now hard code the + * variable divider to 1. This means the clock rates will no longer + * match the clock names. */ #define SUN4I_PLL_AUDIO_REG 0x008 + +static struct ccu_sdm_setting pll_audio_sdm_table[] = { + { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, + { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, +}; + static struct ccu_nm pll_audio_base_clk = { .enable = BIT(31), .n = _SUNXI_CCU_MULT_OFFSET(8, 7, 0), .m = _SUNXI_CCU_DIV_OFFSET(0, 5, 0), + .sdm = _SUNXI_CCU_SDM(pll_audio_sdm_table, 0, + 0x00c, BIT(31)), .common = { .reg = 0x008, + .features = CCU_FEATURE_SIGMA_DELTA_MOD, .hw.init = CLK_HW_INIT("pll-audio-base", "hosc", &ccu_nm_ops, @@ -223,7 +237,7 @@ static struct ccu_mux cpu_clk = { .hw.init = CLK_HW_INIT_PARENTS("cpu", cpu_parents, &ccu_mux_ops, - CLK_IS_CRITICAL), + CLK_SET_RATE_PARENT | CLK_IS_CRITICAL), } }; @@ -1021,9 +1035,9 @@ static struct ccu_common *sun4i_sun7i_ccu_clks[] = { &out_b_clk.common }; -/* Post-divider for pll-audio is hardcoded to 4 */ +/* Post-divider for pll-audio is hardcoded to 1 */ static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", @@ -1420,10 +1434,10 @@ static void __init sun4i_ccu_init(struct device_node *node, return; } - /* Force the PLL-Audio-1x divider to 4 */ + /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN4I_PLL_AUDIO_REG); val &= ~GENMASK(29, 26); - writel(val | (4 << 26), reg + SUN4I_PLL_AUDIO_REG); + writel(val | (1 << 26), reg + SUN4I_PLL_AUDIO_REG); /* * Use the peripheral PLL6 as the AHB parent, instead of CPU / diff --git a/drivers/clk/sunxi-ng/ccu-sun4i-a10.h b/drivers/clk/sunxi-ng/ccu-sun4i-a10.h index c5947c7c050e..23c908ad509f 100644 --- a/drivers/clk/sunxi-ng/ccu-sun4i-a10.h +++ b/drivers/clk/sunxi-ng/ccu-sun4i-a10.h @@ -29,7 +29,7 @@ #define CLK_PLL_AUDIO_4X 6 #define CLK_PLL_AUDIO_8X 7 #define CLK_PLL_VIDEO0 8 -#define CLK_PLL_VIDEO0_2X 9 +/* The PLL_VIDEO0_2X clock is exported */ #define CLK_PLL_VE 10 #define CLK_PLL_DDR_BASE 11 #define CLK_PLL_DDR 12 @@ -38,7 +38,7 @@ #define CLK_PLL_PERIPH 15 #define CLK_PLL_PERIPH_SATA 16 #define CLK_PLL_VIDEO1 17 -#define CLK_PLL_VIDEO1_2X 18 +/* The PLL_VIDEO1_2X clock is exported */ #define CLK_PLL_GPU 19 /* The CPU clock is exported */ diff --git a/drivers/clk/sunxi-ng/ccu-sun5i.c b/drivers/clk/sunxi-ng/ccu-sun5i.c index ab9e850b3707..fa2c2dd77102 100644 --- a/drivers/clk/sunxi-ng/ccu-sun5i.c +++ b/drivers/clk/sunxi-ng/ccu-sun5i.c @@ -26,6 +26,7 @@ #include "ccu_nkmp.h" #include "ccu_nm.h" #include "ccu_phase.h" +#include "ccu_sdm.h" #include "ccu-sun5i.h" @@ -49,11 +50,20 @@ static struct ccu_nkmp pll_core_clk = { * the base (2x, 4x and 8x), and one variable divider (the one true * pll audio). * - * We don't have any need for the variable divider for now, so we just - * hardcode it to match with the clock names + * With sigma-delta modulation for fractional-N on the audio PLL, + * we have to use specific dividers. This means the variable divider + * can no longer be used, as the audio codec requests the exact clock + * rates we support through this mechanism. So we now hard code the + * variable divider to 1. This means the clock rates will no longer + * match the clock names. */ #define SUN5I_PLL_AUDIO_REG 0x008 +static struct ccu_sdm_setting pll_audio_sdm_table[] = { + { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, + { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, +}; + static struct ccu_nm pll_audio_base_clk = { .enable = BIT(31), .n = _SUNXI_CCU_MULT_OFFSET(8, 7, 0), @@ -63,8 +73,11 @@ static struct ccu_nm pll_audio_base_clk = { * offset */ .m = _SUNXI_CCU_DIV_OFFSET(0, 5, 0), + .sdm = _SUNXI_CCU_SDM(pll_audio_sdm_table, 0, + 0x00c, BIT(31)), .common = { .reg = 0x008, + .features = CCU_FEATURE_SIGMA_DELTA_MOD, .hw.init = CLK_HW_INIT("pll-audio-base", "hosc", &ccu_nm_ops, @@ -597,9 +610,9 @@ static struct ccu_common *sun5i_a10s_ccu_clks[] = { &iep_clk.common, }; -/* We hardcode the divider to 4 for now */ +/* We hardcode the divider to 1 for now */ static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", @@ -980,10 +993,10 @@ static void __init sun5i_ccu_init(struct device_node *node, return; } - /* Force the PLL-Audio-1x divider to 4 */ + /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN5I_PLL_AUDIO_REG); - val &= ~GENMASK(19, 16); - writel(val | (3 << 16), reg + SUN5I_PLL_AUDIO_REG); + val &= ~GENMASK(29, 26); + writel(val | (0 << 26), reg + SUN5I_PLL_AUDIO_REG); /* * Use the peripheral PLL as the AHB parent, instead of CPU / diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c index 8af434815fba..72b16ed1012b 100644 --- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.c +++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.c @@ -31,6 +31,7 @@ #include "ccu_nkmp.h" #include "ccu_nm.h" #include "ccu_phase.h" +#include "ccu_sdm.h" #include "ccu-sun6i-a31.h" @@ -48,18 +49,29 @@ static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_cpu_clk, "pll-cpu", * the base (2x, 4x and 8x), and one variable divider (the one true * pll audio). * - * We don't have any need for the variable divider for now, so we just - * hardcode it to match with the clock names + * With sigma-delta modulation for fractional-N on the audio PLL, + * we have to use specific dividers. This means the variable divider + * can no longer be used, as the audio codec requests the exact clock + * rates we support through this mechanism. So we now hard code the + * variable divider to 1. This means the clock rates will no longer + * match the clock names. */ #define SUN6I_A31_PLL_AUDIO_REG 0x008 -static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", - "osc24M", 0x008, - 8, 7, /* N */ - 0, 5, /* M */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static struct ccu_sdm_setting pll_audio_sdm_table[] = { + { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, + { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, +}; + +static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", + "osc24M", 0x008, + 8, 7, /* N */ + 0, 5, /* M */ + pll_audio_sdm_table, BIT(24), + 0x284, BIT(31), + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video0_clk, "pll-video0", "osc24M", 0x010, @@ -608,7 +620,7 @@ static SUNXI_CCU_M_WITH_MUX_GATE(hdmi_clk, "hdmi", lcd_ch1_parents, 0x150, 0, 4, 24, 2, BIT(31), CLK_SET_RATE_PARENT); -static SUNXI_CCU_GATE(hdmi_ddc_clk, "hdmi-ddc", "osc24M", 0x150, BIT(30), 0); +static SUNXI_CCU_GATE(hdmi_ddc_clk, "ddc", "osc24M", 0x150, BIT(30), 0); static SUNXI_CCU_GATE(ps_clk, "ps", "lcd1-ch1", 0x140, BIT(31), 0); @@ -950,9 +962,9 @@ static struct ccu_common *sun6i_a31_ccu_clks[] = { &out_c_clk.common, }; -/* We hardcode the divider to 4 for now */ +/* We hardcode the divider to 1 for now */ static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", @@ -1221,10 +1233,10 @@ static void __init sun6i_a31_ccu_setup(struct device_node *node) return; } - /* Force the PLL-Audio-1x divider to 4 */ + /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN6I_A31_PLL_AUDIO_REG); val &= ~GENMASK(19, 16); - writel(val | (3 << 16), reg + SUN6I_A31_PLL_AUDIO_REG); + writel(val | (0 << 16), reg + SUN6I_A31_PLL_AUDIO_REG); /* Force PLL-MIPI to MIPI mode */ val = readl(reg + SUN6I_A31_PLL_MIPI_REG); diff --git a/drivers/clk/sunxi-ng/ccu-sun6i-a31.h b/drivers/clk/sunxi-ng/ccu-sun6i-a31.h index 4e434011e9e7..27e6ad4133ab 100644 --- a/drivers/clk/sunxi-ng/ccu-sun6i-a31.h +++ b/drivers/clk/sunxi-ng/ccu-sun6i-a31.h @@ -27,7 +27,9 @@ #define CLK_PLL_AUDIO_4X 4 #define CLK_PLL_AUDIO_8X 5 #define CLK_PLL_VIDEO0 6 -#define CLK_PLL_VIDEO0_2X 7 + +/* The PLL_VIDEO0_2X clock is exported */ + #define CLK_PLL_VE 8 #define CLK_PLL_DDR 9 @@ -35,7 +37,9 @@ #define CLK_PLL_PERIPH_2X 11 #define CLK_PLL_VIDEO1 12 -#define CLK_PLL_VIDEO1_2X 13 + +/* The PLL_VIDEO1_2X clock is exported */ + #define CLK_PLL_GPU 14 #define CLK_PLL_MIPI 15 #define CLK_PLL9 16 diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a23.c b/drivers/clk/sunxi-ng/ccu-sun8i-a23.c index d93b452f0df9..a4fa2945f230 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-a23.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-a23.c @@ -26,6 +26,7 @@ #include "ccu_nkmp.h" #include "ccu_nm.h" #include "ccu_phase.h" +#include "ccu_sdm.h" #include "ccu-sun8i-a23-a33.h" @@ -52,18 +53,29 @@ static struct ccu_nkmp pll_cpux_clk = { * the base (2x, 4x and 8x), and one variable divider (the one true * pll audio). * - * We don't have any need for the variable divider for now, so we just - * hardcode it to match with the clock names + * With sigma-delta modulation for fractional-N on the audio PLL, + * we have to use specific dividers. This means the variable divider + * can no longer be used, as the audio codec requests the exact clock + * rates we support through this mechanism. So we now hard code the + * variable divider to 1. This means the clock rates will no longer + * match the clock names. */ #define SUN8I_A23_PLL_AUDIO_REG 0x008 -static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", - "osc24M", 0x008, - 8, 7, /* N */ - 0, 5, /* M */ - BIT(31), /* gate */ - BIT(28), /* lock */ - CLK_SET_RATE_UNGATE); +static struct ccu_sdm_setting pll_audio_sdm_table[] = { + { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, + { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, +}; + +static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", + "osc24M", 0x008, + 8, 7, /* N */ + 0, 5, /* M */ + pll_audio_sdm_table, BIT(24), + 0x284, BIT(31), + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video", "osc24M", 0x010, @@ -538,9 +550,9 @@ static struct ccu_common *sun8i_a23_ccu_clks[] = { &ats_clk.common, }; -/* We hardcode the divider to 4 for now */ +/* We hardcode the divider to 1 for now */ static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", @@ -720,10 +732,10 @@ static void __init sun8i_a23_ccu_setup(struct device_node *node) return; } - /* Force the PLL-Audio-1x divider to 4 */ + /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN8I_A23_PLL_AUDIO_REG); val &= ~GENMASK(19, 16); - writel(val | (3 << 16), reg + SUN8I_A23_PLL_AUDIO_REG); + writel(val | (0 << 16), reg + SUN8I_A23_PLL_AUDIO_REG); /* Force PLL-MIPI to MIPI mode */ val = readl(reg + SUN8I_A23_PLL_MIPI_REG); diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c index e43acebdfbcd..c7b51f030eb2 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-a83t.c @@ -506,7 +506,7 @@ static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_mclk_clk, "csi-mclk", csi_mclk_parents, csi_mclk_table, 0x134, 0, 5, /* M */ - 10, 3, /* mux */ + 8, 3, /* mux */ BIT(15), /* gate */ 0); diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-de2.c b/drivers/clk/sunxi-ng/ccu-sun8i-de2.c index 5cdaf52669e4..5cc9d9952121 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-de2.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-de2.c @@ -41,11 +41,16 @@ static SUNXI_CCU_GATE(wb_clk, "wb", "wb-div", static SUNXI_CCU_M(mixer0_div_clk, "mixer0-div", "de", 0x0c, 0, 4, CLK_SET_RATE_PARENT); -static SUNXI_CCU_M(mixer1_div_clk, "mixer1-div", "de", 0x0c, 4, 4, - CLK_SET_RATE_PARENT); static SUNXI_CCU_M(wb_div_clk, "wb-div", "de", 0x0c, 8, 4, CLK_SET_RATE_PARENT); +static SUNXI_CCU_M(mixer0_div_a83_clk, "mixer0-div", "pll-de", 0x0c, 0, 4, + CLK_SET_RATE_PARENT); +static SUNXI_CCU_M(mixer1_div_a83_clk, "mixer1-div", "pll-de", 0x0c, 4, 4, + CLK_SET_RATE_PARENT); +static SUNXI_CCU_M(wb_div_a83_clk, "wb-div", "pll-de", 0x0c, 8, 4, + CLK_SET_RATE_PARENT); + static struct ccu_common *sun8i_a83t_de2_clks[] = { &mixer0_clk.common, &mixer1_clk.common, @@ -55,9 +60,9 @@ static struct ccu_common *sun8i_a83t_de2_clks[] = { &bus_mixer1_clk.common, &bus_wb_clk.common, - &mixer0_div_clk.common, - &mixer1_div_clk.common, - &wb_div_clk.common, + &mixer0_div_a83_clk.common, + &mixer1_div_a83_clk.common, + &wb_div_a83_clk.common, }; static struct ccu_common *sun8i_v3s_de2_clks[] = { @@ -81,9 +86,9 @@ static struct clk_hw_onecell_data sun8i_a83t_de2_hw_clks = { [CLK_BUS_MIXER1] = &bus_mixer1_clk.common.hw, [CLK_BUS_WB] = &bus_wb_clk.common.hw, - [CLK_MIXER0_DIV] = &mixer0_div_clk.common.hw, - [CLK_MIXER1_DIV] = &mixer1_div_clk.common.hw, - [CLK_WB_DIV] = &wb_div_clk.common.hw, + [CLK_MIXER0_DIV] = &mixer0_div_a83_clk.common.hw, + [CLK_MIXER1_DIV] = &mixer1_div_a83_clk.common.hw, + [CLK_WB_DIV] = &wb_div_a83_clk.common.hw, }, .num = CLK_NUMBER, }; diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-h3.c b/drivers/clk/sunxi-ng/ccu-sun8i-h3.c index 1729ff6a5aae..29bc0566b776 100644 --- a/drivers/clk/sunxi-ng/ccu-sun8i-h3.c +++ b/drivers/clk/sunxi-ng/ccu-sun8i-h3.c @@ -26,6 +26,7 @@ #include "ccu_nkmp.h" #include "ccu_nm.h" #include "ccu_phase.h" +#include "ccu_sdm.h" #include "ccu-sun8i-h3.h" @@ -37,25 +38,36 @@ static SUNXI_CCU_NKMP_WITH_GATE_LOCK(pll_cpux_clk, "pll-cpux", 16, 2, /* P */ BIT(31), /* gate */ BIT(28), /* lock */ - 0); + CLK_SET_RATE_UNGATE); /* * The Audio PLL is supposed to have 4 outputs: 3 fixed factors from * the base (2x, 4x and 8x), and one variable divider (the one true * pll audio). * - * We don't have any need for the variable divider for now, so we just - * hardcode it to match with the clock names + * With sigma-delta modulation for fractional-N on the audio PLL, + * we have to use specific dividers. This means the variable divider + * can no longer be used, as the audio codec requests the exact clock + * rates we support through this mechanism. So we now hard code the + * variable divider to 1. This means the clock rates will no longer + * match the clock names. */ #define SUN8I_H3_PLL_AUDIO_REG 0x008 -static SUNXI_CCU_NM_WITH_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", - "osc24M", 0x008, - 8, 7, /* N */ - 0, 5, /* M */ - BIT(31), /* gate */ - BIT(28), /* lock */ - 0); +static struct ccu_sdm_setting pll_audio_sdm_table[] = { + { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, + { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, +}; + +static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", + "osc24M", 0x008, + 8, 7, /* N */ + 0, 5, /* M */ + pll_audio_sdm_table, BIT(24), + 0x284, BIT(31), + BIT(31), /* gate */ + BIT(28), /* lock */ + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video", "osc24M", 0x0010, @@ -67,7 +79,7 @@ static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video", 297000000, /* frac rate 1 */ BIT(31), /* gate */ BIT(28), /* lock */ - 0); + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve", "osc24M", 0x0018, @@ -79,7 +91,7 @@ static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve", 297000000, /* frac rate 1 */ BIT(31), /* gate */ BIT(28), /* lock */ - 0); + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_ddr_clk, "pll-ddr", "osc24M", 0x020, @@ -88,7 +100,7 @@ static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_ddr_clk, "pll-ddr", 0, 2, /* M */ BIT(31), /* gate */ BIT(28), /* lock */ - 0); + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(pll_periph0_clk, "pll-periph0", "osc24M", 0x028, @@ -97,7 +109,7 @@ static SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(pll_periph0_clk, "pll-periph0", BIT(31), /* gate */ BIT(28), /* lock */ 2, /* post-div */ - 0); + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_gpu_clk, "pll-gpu", "osc24M", 0x0038, @@ -109,7 +121,7 @@ static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_gpu_clk, "pll-gpu", 297000000, /* frac rate 1 */ BIT(31), /* gate */ BIT(28), /* lock */ - 0); + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(pll_periph1_clk, "pll-periph1", "osc24M", 0x044, @@ -118,7 +130,7 @@ static SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(pll_periph1_clk, "pll-periph1", BIT(31), /* gate */ BIT(28), /* lock */ 2, /* post-div */ - 0); + CLK_SET_RATE_UNGATE); static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_de_clk, "pll-de", "osc24M", 0x0048, @@ -130,7 +142,7 @@ static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_de_clk, "pll-de", 297000000, /* frac rate 1 */ BIT(31), /* gate */ BIT(28), /* lock */ - 0); + CLK_SET_RATE_UNGATE); static const char * const cpux_parents[] = { "osc32k", "osc24M", "pll-cpux" , "pll-cpux" }; @@ -484,7 +496,7 @@ static SUNXI_CCU_M_WITH_MUX_GATE(mbus_clk, "mbus", mbus_parents, 0x15c, 0, 3, 24, 2, BIT(31), CLK_IS_CRITICAL); static SUNXI_CCU_M_WITH_GATE(gpu_clk, "gpu", "pll-gpu", - 0x1a0, 0, 3, BIT(31), 0); + 0x1a0, 0, 3, BIT(31), CLK_SET_RATE_PARENT); static struct ccu_common *sun8i_h3_ccu_clks[] = { &pll_cpux_clk.common, @@ -707,9 +719,9 @@ static struct ccu_common *sun50i_h5_ccu_clks[] = { &gpu_clk.common, }; -/* We hardcode the divider to 4 for now */ +/* We hardcode the divider to 1 for now */ static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", - "pll-audio-base", 4, 1, CLK_SET_RATE_PARENT); + "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", @@ -1129,10 +1141,10 @@ static void __init sunxi_h3_h5_ccu_init(struct device_node *node, return; } - /* Force the PLL-Audio-1x divider to 4 */ + /* Force the PLL-Audio-1x divider to 1 */ val = readl(reg + SUN8I_H3_PLL_AUDIO_REG); val &= ~GENMASK(19, 16); - writel(val | (3 << 16), reg + SUN8I_H3_PLL_AUDIO_REG); + writel(val | (0 << 16), reg + SUN8I_H3_PLL_AUDIO_REG); sunxi_ccu_probe(node, reg, desc); diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h index cadd1a9f93b6..5d684ce77c54 100644 --- a/drivers/clk/sunxi-ng/ccu_common.h +++ b/drivers/clk/sunxi-ng/ccu_common.h @@ -24,6 +24,7 @@ #define CCU_FEATURE_ALL_PREDIV BIT(4) #define CCU_FEATURE_LOCK_REG BIT(5) #define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6) +#define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7) /* MMC timing mode switch bit */ #define CCU_MMC_NEW_TIMING_MODE BIT(30) diff --git a/drivers/clk/sunxi-ng/ccu_nm.c b/drivers/clk/sunxi-ng/ccu_nm.c index a32158e8f2e3..7620aa973a6e 100644 --- a/drivers/clk/sunxi-ng/ccu_nm.c +++ b/drivers/clk/sunxi-ng/ccu_nm.c @@ -90,6 +90,14 @@ static unsigned long ccu_nm_recalc_rate(struct clk_hw *hw, if (!m) m++; + if (ccu_sdm_helper_is_enabled(&nm->common, &nm->sdm)) { + unsigned long rate = + ccu_sdm_helper_read_rate(&nm->common, &nm->sdm, + m, n); + if (rate) + return rate; + } + return parent_rate * n / m; } @@ -99,6 +107,12 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate, struct ccu_nm *nm = hw_to_ccu_nm(hw); struct _ccu_nm _nm; + if (ccu_frac_helper_has_rate(&nm->common, &nm->frac, rate)) + return rate; + + if (ccu_sdm_helper_has_rate(&nm->common, &nm->sdm, rate)) + return rate; + _nm.min_n = nm->n.min ?: 1; _nm.max_n = nm->n.max ?: 1 << nm->n.width; _nm.min_m = 1; @@ -140,7 +154,16 @@ static int ccu_nm_set_rate(struct clk_hw *hw, unsigned long rate, _nm.min_m = 1; _nm.max_m = nm->m.max ?: 1 << nm->m.width; - ccu_nm_find_best(parent_rate, rate, &_nm); + if (ccu_sdm_helper_has_rate(&nm->common, &nm->sdm, rate)) { + ccu_sdm_helper_enable(&nm->common, &nm->sdm, rate); + + /* Sigma delta modulation requires specific N and M factors */ + ccu_sdm_helper_get_factors(&nm->common, &nm->sdm, rate, + &_nm.m, &_nm.n); + } else { + ccu_sdm_helper_disable(&nm->common, &nm->sdm); + ccu_nm_find_best(parent_rate, rate, &_nm); + } spin_lock_irqsave(nm->common.lock, flags); diff --git a/drivers/clk/sunxi-ng/ccu_nm.h b/drivers/clk/sunxi-ng/ccu_nm.h index e87fd186da78..c623b0c7a23c 100644 --- a/drivers/clk/sunxi-ng/ccu_nm.h +++ b/drivers/clk/sunxi-ng/ccu_nm.h @@ -20,6 +20,7 @@ #include "ccu_div.h" #include "ccu_frac.h" #include "ccu_mult.h" +#include "ccu_sdm.h" /* * struct ccu_nm - Definition of an N-M clock @@ -33,10 +34,34 @@ struct ccu_nm { struct ccu_mult_internal n; struct ccu_div_internal m; struct ccu_frac_internal frac; + struct ccu_sdm_internal sdm; struct ccu_common common; }; +#define SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(_struct, _name, _parent, _reg, \ + _nshift, _nwidth, \ + _mshift, _mwidth, \ + _sdm_table, _sdm_en, \ + _sdm_reg, _sdm_reg_en, \ + _gate, _lock, _flags) \ + struct ccu_nm _struct = { \ + .enable = _gate, \ + .lock = _lock, \ + .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ + .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ + .sdm = _SUNXI_CCU_SDM(_sdm_table, _sdm_en, \ + _sdm_reg, _sdm_reg_en),\ + .common = { \ + .reg = _reg, \ + .features = CCU_FEATURE_SIGMA_DELTA_MOD, \ + .hw.init = CLK_HW_INIT(_name, \ + _parent, \ + &ccu_nm_ops, \ + _flags), \ + }, \ + } + #define SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(_struct, _name, _parent, _reg, \ _nshift, _nwidth, \ _mshift, _mwidth, \ diff --git a/drivers/clk/sunxi-ng/ccu_reset.c b/drivers/clk/sunxi-ng/ccu_reset.c index 1dc4e98ea802..b67149143554 100644 --- a/drivers/clk/sunxi-ng/ccu_reset.c +++ b/drivers/clk/sunxi-ng/ccu_reset.c @@ -60,8 +60,22 @@ static int ccu_reset_reset(struct reset_controller_dev *rcdev, return 0; } +static int ccu_reset_status(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct ccu_reset *ccu = rcdev_to_ccu_reset(rcdev); + const struct ccu_reset_map *map = &ccu->reset_map[id]; + + /* + * The reset control API expects 0 if reset is not asserted, + * which is the opposite of what our hardware uses. + */ + return !(map->bit & readl(ccu->base + map->reg)); +} + const struct reset_control_ops ccu_reset_ops = { .assert = ccu_reset_assert, .deassert = ccu_reset_deassert, .reset = ccu_reset_reset, + .status = ccu_reset_status, }; diff --git a/drivers/clk/sunxi-ng/ccu_sdm.c b/drivers/clk/sunxi-ng/ccu_sdm.c new file mode 100644 index 000000000000..3b3dc9bdf2b0 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu_sdm.c @@ -0,0 +1,158 @@ +/* + * Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <linux/clk-provider.h> +#include <linux/spinlock.h> + +#include "ccu_sdm.h" + +bool ccu_sdm_helper_is_enabled(struct ccu_common *common, + struct ccu_sdm_internal *sdm) +{ + if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) + return false; + + if (sdm->enable && !(readl(common->base + common->reg) & sdm->enable)) + return false; + + return !!(readl(common->base + sdm->tuning_reg) & sdm->tuning_enable); +} + +void ccu_sdm_helper_enable(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + unsigned long rate) +{ + unsigned long flags; + unsigned int i; + u32 reg; + + if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) + return; + + /* Set the pattern */ + for (i = 0; i < sdm->table_size; i++) + if (sdm->table[i].rate == rate) + writel(sdm->table[i].pattern, + common->base + sdm->tuning_reg); + + /* Make sure SDM is enabled */ + spin_lock_irqsave(common->lock, flags); + reg = readl(common->base + sdm->tuning_reg); + writel(reg | sdm->tuning_enable, common->base + sdm->tuning_reg); + spin_unlock_irqrestore(common->lock, flags); + + spin_lock_irqsave(common->lock, flags); + reg = readl(common->base + common->reg); + writel(reg | sdm->enable, common->base + common->reg); + spin_unlock_irqrestore(common->lock, flags); +} + +void ccu_sdm_helper_disable(struct ccu_common *common, + struct ccu_sdm_internal *sdm) +{ + unsigned long flags; + u32 reg; + + if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) + return; + + spin_lock_irqsave(common->lock, flags); + reg = readl(common->base + common->reg); + writel(reg & ~sdm->enable, common->base + common->reg); + spin_unlock_irqrestore(common->lock, flags); + + spin_lock_irqsave(common->lock, flags); + reg = readl(common->base + sdm->tuning_reg); + writel(reg & ~sdm->tuning_enable, common->base + sdm->tuning_reg); + spin_unlock_irqrestore(common->lock, flags); +} + +/* + * Sigma delta modulation provides a way to do fractional-N frequency + * synthesis, in essence allowing the PLL to output any frequency + * within its operational range. On earlier SoCs such as the A10/A20, + * some PLLs support this. On later SoCs, all PLLs support this. + * + * The datasheets do not explain what the "wave top" and "wave bottom" + * parameters mean or do, nor how to calculate the effective output + * frequency. The only examples (and real world usage) are for the audio + * PLL to generate 24.576 and 22.5792 MHz clock rates used by the audio + * peripherals. The author lacks the underlying domain knowledge to + * pursue this. + * + * The goal and function of the following code is to support the two + * clock rates used by the audio subsystem, allowing for proper audio + * playback and capture without any pitch or speed changes. + */ +bool ccu_sdm_helper_has_rate(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + unsigned long rate) +{ + unsigned int i; + + if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) + return false; + + for (i = 0; i < sdm->table_size; i++) + if (sdm->table[i].rate == rate) + return true; + + return false; +} + +unsigned long ccu_sdm_helper_read_rate(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + u32 m, u32 n) +{ + unsigned int i; + u32 reg; + + pr_debug("%s: Read sigma-delta modulation setting\n", + clk_hw_get_name(&common->hw)); + + if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) + return 0; + + pr_debug("%s: clock is sigma-delta modulated\n", + clk_hw_get_name(&common->hw)); + + reg = readl(common->base + sdm->tuning_reg); + + pr_debug("%s: pattern reg is 0x%x", + clk_hw_get_name(&common->hw), reg); + + for (i = 0; i < sdm->table_size; i++) + if (sdm->table[i].pattern == reg && + sdm->table[i].m == m && sdm->table[i].n == n) + return sdm->table[i].rate; + + /* We can't calculate the effective clock rate, so just fail. */ + return 0; +} + +int ccu_sdm_helper_get_factors(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + unsigned long rate, + unsigned long *m, unsigned long *n) +{ + unsigned int i; + + if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) + return -EINVAL; + + for (i = 0; i < sdm->table_size; i++) + if (sdm->table[i].rate == rate) { + *m = sdm->table[i].m; + *n = sdm->table[i].n; + return 0; + } + + /* nothing found */ + return -EINVAL; +} diff --git a/drivers/clk/sunxi-ng/ccu_sdm.h b/drivers/clk/sunxi-ng/ccu_sdm.h new file mode 100644 index 000000000000..2a9b4a2584d6 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu_sdm.h @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2017 Chen-Yu Tsai. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _CCU_SDM_H +#define _CCU_SDM_H + +#include <linux/clk-provider.h> + +#include "ccu_common.h" + +struct ccu_sdm_setting { + unsigned long rate; + + /* + * XXX We don't know what the step and bottom register fields + * mean. Just copy the whole register value from the vendor + * kernel for now. + */ + u32 pattern; + + /* + * M and N factors here should be the values used in + * calculation, not the raw values written to registers + */ + u32 m; + u32 n; +}; + +struct ccu_sdm_internal { + struct ccu_sdm_setting *table; + u32 table_size; + /* early SoCs don't have the SDM enable bit in the PLL register */ + u32 enable; + /* second enable bit in tuning register */ + u32 tuning_enable; + u16 tuning_reg; +}; + +#define _SUNXI_CCU_SDM(_table, _enable, \ + _reg, _reg_enable) \ + { \ + .table = _table, \ + .table_size = ARRAY_SIZE(_table), \ + .enable = _enable, \ + .tuning_enable = _reg_enable, \ + .tuning_reg = _reg, \ + } + +bool ccu_sdm_helper_is_enabled(struct ccu_common *common, + struct ccu_sdm_internal *sdm); +void ccu_sdm_helper_enable(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + unsigned long rate); +void ccu_sdm_helper_disable(struct ccu_common *common, + struct ccu_sdm_internal *sdm); + +bool ccu_sdm_helper_has_rate(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + unsigned long rate); + +unsigned long ccu_sdm_helper_read_rate(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + u32 m, u32 n); + +int ccu_sdm_helper_get_factors(struct ccu_common *common, + struct ccu_sdm_internal *sdm, + unsigned long rate, + unsigned long *m, unsigned long *n); + +#endif diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c index dfe5e3e32d28..856fef65433b 100644 --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -276,13 +276,11 @@ void sunxi_factors_unregister(struct device_node *node, struct clk *clk) { struct clk_hw *hw = __clk_get_hw(clk); struct clk_factors *factors; - const char *name; if (!hw) return; factors = to_clk_factors(hw); - name = clk_hw_get_name(hw); of_clk_del_provider(node); /* TODO: The composite clock stuff will leak a bit here. */ diff --git a/drivers/clk/sunxi/clk-sun9i-mmc.c b/drivers/clk/sunxi/clk-sun9i-mmc.c index 6041bdba2e97..a1a634253d6f 100644 --- a/drivers/clk/sunxi/clk-sun9i-mmc.c +++ b/drivers/clk/sunxi/clk-sun9i-mmc.c @@ -124,7 +124,7 @@ static int sun9i_a80_mmc_config_clk_probe(struct platform_device *pdev) return PTR_ERR(data->clk); } - data->reset = devm_reset_control_get(&pdev->dev, NULL); + data->reset = devm_reset_control_get_exclusive(&pdev->dev, NULL); if (IS_ERR(data->reset)) { dev_err(&pdev->dev, "Could not get reset control\n"); return PTR_ERR(data->reset); diff --git a/drivers/clk/tegra/clk-bpmp.c b/drivers/clk/tegra/clk-bpmp.c index 638ace64033b..a896692b74ec 100644 --- a/drivers/clk/tegra/clk-bpmp.c +++ b/drivers/clk/tegra/clk-bpmp.c @@ -55,6 +55,7 @@ struct tegra_bpmp_clk_message { struct { void *data; size_t size; + int ret; } rx; }; @@ -64,6 +65,7 @@ static int tegra_bpmp_clk_transfer(struct tegra_bpmp *bpmp, struct mrq_clk_request request; struct tegra_bpmp_message msg; void *req = &request; + int err; memset(&request, 0, sizeof(request)); request.cmd_and_id = (clk->cmd << 24) | clk->id; @@ -84,7 +86,13 @@ static int tegra_bpmp_clk_transfer(struct tegra_bpmp *bpmp, msg.rx.data = clk->rx.data; msg.rx.size = clk->rx.size; - return tegra_bpmp_transfer(bpmp, &msg); + err = tegra_bpmp_transfer(bpmp, &msg); + if (err < 0) + return err; + else if (msg.rx.ret < 0) + return -EINVAL; + + return 0; } static int tegra_bpmp_clk_prepare(struct clk_hw *hw) @@ -414,11 +422,8 @@ static int tegra_bpmp_probe_clocks(struct tegra_bpmp *bpmp, struct tegra_bpmp_clk_info *info = &clocks[count]; err = tegra_bpmp_clk_get_info(bpmp, id, info); - if (err < 0) { - dev_err(bpmp->dev, "failed to query clock %u: %d\n", - id, err); + if (err < 0) continue; - } if (info->num_parents >= U8_MAX) { dev_err(bpmp->dev, diff --git a/drivers/clk/tegra/clk-dfll.c b/drivers/clk/tegra/clk-dfll.c index 2c44aeb0b97c..0a7deee74eea 100644 --- a/drivers/clk/tegra/clk-dfll.c +++ b/drivers/clk/tegra/clk-dfll.c @@ -1728,10 +1728,10 @@ EXPORT_SYMBOL(tegra_dfll_register); * @pdev: DFLL platform_device * * * Unbind this driver from the DFLL hardware device represented by - * @pdev. The DFLL must be disabled for this to succeed. Returns 0 - * upon success or -EBUSY if the DFLL is still active. + * @pdev. The DFLL must be disabled for this to succeed. Returns a + * soc pointer upon success or -EBUSY if the DFLL is still active. */ -int tegra_dfll_unregister(struct platform_device *pdev) +struct tegra_dfll_soc_data *tegra_dfll_unregister(struct platform_device *pdev) { struct tegra_dfll *td = platform_get_drvdata(pdev); @@ -1739,7 +1739,7 @@ int tegra_dfll_unregister(struct platform_device *pdev) if (td->mode != DFLL_DISABLED) { dev_err(&pdev->dev, "must disable DFLL before removing driver\n"); - return -EBUSY; + return ERR_PTR(-EBUSY); } debugfs_remove_recursive(td->debugfs_dir); @@ -1753,6 +1753,6 @@ int tegra_dfll_unregister(struct platform_device *pdev) reset_control_assert(td->dvco_rst); - return 0; + return td->soc; } EXPORT_SYMBOL(tegra_dfll_unregister); diff --git a/drivers/clk/tegra/clk-dfll.h b/drivers/clk/tegra/clk-dfll.h index ed2ad888268f..83352c8078f2 100644 --- a/drivers/clk/tegra/clk-dfll.h +++ b/drivers/clk/tegra/clk-dfll.h @@ -43,7 +43,7 @@ struct tegra_dfll_soc_data { int tegra_dfll_register(struct platform_device *pdev, struct tegra_dfll_soc_data *soc); -int tegra_dfll_unregister(struct platform_device *pdev); +struct tegra_dfll_soc_data *tegra_dfll_unregister(struct platform_device *pdev); int tegra_dfll_runtime_suspend(struct device *dev); int tegra_dfll_runtime_resume(struct device *dev); diff --git a/drivers/clk/tegra/clk-id.h b/drivers/clk/tegra/clk-id.h index 689f344377a7..c1661b47bbda 100644 --- a/drivers/clk/tegra/clk-id.h +++ b/drivers/clk/tegra/clk-id.h @@ -12,6 +12,7 @@ enum clk_id { tegra_clk_amx, tegra_clk_amx1, tegra_clk_apb2ape, + tegra_clk_ahbdma, tegra_clk_apbdma, tegra_clk_apbif, tegra_clk_ape, diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c index cf80831de79d..9475c00b7cf9 100644 --- a/drivers/clk/tegra/clk-periph.c +++ b/drivers/clk/tegra/clk-periph.c @@ -203,3 +203,11 @@ struct clk *tegra_clk_register_periph_nodiv(const char *name, return _tegra_clk_register_periph(name, parent_names, num_parents, periph, clk_base, offset, CLK_SET_RATE_PARENT); } + +struct clk *tegra_clk_register_periph_data(void __iomem *clk_base, + struct tegra_periph_init_data *init) +{ + return _tegra_clk_register_periph(init->name, init->p.parent_names, + init->num_parents, &init->periph, + clk_base, init->offset, init->flags); +} diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c index 848255cc0209..c02711927d79 100644 --- a/drivers/clk/tegra/clk-tegra-periph.c +++ b/drivers/clk/tegra/clk-tegra-periph.c @@ -129,7 +129,6 @@ #define CLK_SOURCE_NVDEC 0x698 #define CLK_SOURCE_NVJPG 0x69c #define CLK_SOURCE_APE 0x6c0 -#define CLK_SOURCE_SOR1 0x410 #define CLK_SOURCE_SDMMC_LEGACY 0x694 #define CLK_SOURCE_QSPI 0x6c4 #define CLK_SOURCE_VI_I2C 0x6c8 @@ -278,7 +277,6 @@ static DEFINE_SPINLOCK(PLLP_OUTA_lock); static DEFINE_SPINLOCK(PLLP_OUTB_lock); static DEFINE_SPINLOCK(PLLP_OUTC_lock); static DEFINE_SPINLOCK(sor0_lock); -static DEFINE_SPINLOCK(sor1_lock); #define MUX_I2S_SPDIF(_id) \ static const char *mux_pllaout0_##_id##_2x_pllp_clkm[] = { "pll_a_out0", \ @@ -604,18 +602,6 @@ static u32 mux_pllp_plld_plld2_clkm_idx[] = { [0] = 0, [1] = 2, [2] = 5, [3] = 6 }; -static const char *mux_sor_safe_sor1_brick_sor1_src[] = { - /* - * Bit 0 of the mux selects sor1_brick, irrespective of bit 1, so the - * sor1_brick parent appears twice in the list below. This is merely - * to support clk_get_parent() if firmware happened to set these bits - * to 0b11. While not an invalid setting, code should always set the - * bits to 0b01 to select sor1_brick. - */ - "sor_safe", "sor1_brick", "sor1_src", "sor1_brick" -}; -#define mux_sor_safe_sor1_brick_sor1_src_idx NULL - static const char *mux_pllp_pllre_clkm[] = { "pll_p", "pll_re_out1", "clk_m" }; @@ -804,8 +790,6 @@ static struct tegra_periph_init_data periph_clks[] = { MUX8("nvdec", mux_pllc2_c_c3_pllp_plla1_clkm, CLK_SOURCE_NVDEC, 194, 0, tegra_clk_nvdec), MUX8("nvjpg", mux_pllc2_c_c3_pllp_plla1_clkm, CLK_SOURCE_NVJPG, 195, 0, tegra_clk_nvjpg), MUX8("ape", mux_plla_pllc4_out0_pllc_pllc4_out1_pllp_pllc4_out2_clkm, CLK_SOURCE_APE, 198, TEGRA_PERIPH_ON_APB, tegra_clk_ape), - MUX8_NOGATE_LOCK("sor1_src", mux_pllp_plld_plld2_clkm, CLK_SOURCE_SOR1, tegra_clk_sor1_src, &sor1_lock), - NODIV("sor1", mux_sor_safe_sor1_brick_sor1_src, CLK_SOURCE_SOR1, 14, MASK(2), 183, 0, tegra_clk_sor1, &sor1_lock), MUX8("sdmmc_legacy", mux_pllp_out3_clkm_pllp_pllc4, CLK_SOURCE_SDMMC_LEGACY, 193, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_sdmmc_legacy), MUX8("qspi", mux_pllp_pllc_pllc_out1_pllc4_out2_pllc4_out1_clkm_pllc4_out0, CLK_SOURCE_QSPI, 211, TEGRA_PERIPH_ON_APB, tegra_clk_qspi), I2C("vii2c", mux_pllp_pllc_clkm, CLK_SOURCE_VI_I2C, 208, tegra_clk_vi_i2c), @@ -823,7 +807,8 @@ static struct tegra_periph_init_data gate_clks[] = { GATE("timer", "clk_m", 5, 0, tegra_clk_timer, CLK_IS_CRITICAL), GATE("isp", "clk_m", 23, 0, tegra_clk_isp, 0), GATE("vcp", "clk_m", 29, 0, tegra_clk_vcp, 0), - GATE("apbdma", "clk_m", 34, 0, tegra_clk_apbdma, 0), + GATE("ahbdma", "hclk", 33, 0, tegra_clk_ahbdma, 0), + GATE("apbdma", "pclk", 34, 0, tegra_clk_apbdma, 0), GATE("kbc", "clk_32k", 36, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_kbc, 0), GATE("fuse", "clk_m", 39, TEGRA_PERIPH_ON_APB, tegra_clk_fuse, 0), GATE("fuse_burn", "clk_m", 39, TEGRA_PERIPH_ON_APB, tegra_clk_fuse_burn, 0), @@ -927,10 +912,7 @@ static void __init periph_clk_init(void __iomem *clk_base, continue; data->periph.gate.regs = bank; - clk = tegra_clk_register_periph(data->name, - data->p.parent_names, data->num_parents, - &data->periph, clk_base, data->offset, - data->flags); + clk = tegra_clk_register_periph_data(clk_base, data); *dt_clk = clk; } } diff --git a/drivers/clk/tegra/clk-tegra-super-gen4.c b/drivers/clk/tegra/clk-tegra-super-gen4.c index 4f6fd307cb70..10047107c1dc 100644 --- a/drivers/clk/tegra/clk-tegra-super-gen4.c +++ b/drivers/clk/tegra/clk-tegra-super-gen4.c @@ -166,7 +166,7 @@ static void __init tegra_sclk_init(void __iomem *clk_base, clk_base + SYSTEM_CLK_RATE, 0, 2, 0, &sysrate_lock); clk = clk_register_gate(NULL, "pclk", "pclk_div", CLK_SET_RATE_PARENT | - CLK_IGNORE_UNUSED, clk_base + SYSTEM_CLK_RATE, + CLK_IS_CRITICAL, clk_base + SYSTEM_CLK_RATE, 3, CLK_GATE_SET_TO_DISABLE, &sysrate_lock); *dt_clk = clk; } diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c index fd1a99c05c2d..63087d17c3e2 100644 --- a/drivers/clk/tegra/clk-tegra114.c +++ b/drivers/clk/tegra/clk-tegra114.c @@ -1092,9 +1092,7 @@ static __init void tegra114_periph_clk_init(void __iomem *clk_base, for (i = 0; i < ARRAY_SIZE(tegra_periph_clk_list); i++) { data = &tegra_periph_clk_list[i]; - clk = tegra_clk_register_periph(data->name, - data->p.parent_names, data->num_parents, - &data->periph, clk_base, data->offset, data->flags); + clk = tegra_clk_register_periph_data(clk_base, data); clks[data->clk_id] = clk; } diff --git a/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c b/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c index ad1c1cc829cb..269d3595758b 100644 --- a/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c +++ b/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c @@ -125,19 +125,17 @@ static int tegra124_dfll_fcpu_probe(struct platform_device *pdev) return err; } - platform_set_drvdata(pdev, soc); - return 0; } static int tegra124_dfll_fcpu_remove(struct platform_device *pdev) { - struct tegra_dfll_soc_data *soc = platform_get_drvdata(pdev); - int err; + struct tegra_dfll_soc_data *soc; - err = tegra_dfll_unregister(pdev); - if (err < 0) - dev_err(&pdev->dev, "failed to unregister DFLL: %d\n", err); + soc = tegra_dfll_unregister(pdev); + if (IS_ERR(soc)) + dev_err(&pdev->dev, "failed to unregister DFLL: %ld\n", + PTR_ERR(soc)); tegra_cvb_remove_opp_table(soc->dev, soc->cvb, soc->max_freq); diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c index 837e5cbd60e9..cbd5a2e5c569 100644 --- a/drivers/clk/tegra/clk-tegra20.c +++ b/drivers/clk/tegra/clk-tegra20.c @@ -522,6 +522,8 @@ static struct tegra_devclk devclks[] __initdata = { }; static struct tegra_clk tegra20_clks[tegra_clk_max] __initdata = { + [tegra_clk_ahbdma] = { .dt_id = TEGRA20_CLK_AHBDMA, .present = true }, + [tegra_clk_apbdma] = { .dt_id = TEGRA20_CLK_APBDMA, .present = true }, [tegra_clk_spdif_out] = { .dt_id = TEGRA20_CLK_SPDIF_OUT, .present = true }, [tegra_clk_spdif_in] = { .dt_id = TEGRA20_CLK_SPDIF_IN, .present = true }, [tegra_clk_sdmmc1] = { .dt_id = TEGRA20_CLK_SDMMC1, .present = true }, @@ -806,11 +808,6 @@ static void __init tegra20_periph_clk_init(void) clk_base, 0, 3, periph_clk_enb_refcnt); clks[TEGRA20_CLK_AC97] = clk; - /* apbdma */ - clk = tegra_clk_register_periph_gate("apbdma", "pclk", 0, clk_base, - 0, 34, periph_clk_enb_refcnt); - clks[TEGRA20_CLK_APBDMA] = clk; - /* emc */ clk = clk_register_mux(NULL, "emc_mux", mux_pllmcp_clkm, ARRAY_SIZE(mux_pllmcp_clkm), @@ -850,9 +847,7 @@ static void __init tegra20_periph_clk_init(void) for (i = 0; i < ARRAY_SIZE(tegra_periph_clk_list); i++) { data = &tegra_periph_clk_list[i]; - clk = tegra_clk_register_periph(data->name, data->p.parent_names, - data->num_parents, &data->periph, - clk_base, data->offset, data->flags); + clk = tegra_clk_register_periph_data(clk_base, data); clks[data->clk_id] = clk; } @@ -1025,7 +1020,7 @@ static struct tegra_clk_init_table init_table[] __initdata = { { TEGRA20_CLK_PLL_P_OUT3, TEGRA20_CLK_CLK_MAX, 72000000, 1 }, { TEGRA20_CLK_PLL_P_OUT4, TEGRA20_CLK_CLK_MAX, 24000000, 1 }, { TEGRA20_CLK_PLL_C, TEGRA20_CLK_CLK_MAX, 600000000, 1 }, - { TEGRA20_CLK_PLL_C_OUT1, TEGRA20_CLK_CLK_MAX, 120000000, 1 }, + { TEGRA20_CLK_PLL_C_OUT1, TEGRA20_CLK_CLK_MAX, 216000000, 1 }, { TEGRA20_CLK_SCLK, TEGRA20_CLK_PLL_C_OUT1, 0, 1 }, { TEGRA20_CLK_HCLK, TEGRA20_CLK_CLK_MAX, 0, 1 }, { TEGRA20_CLK_PCLK, TEGRA20_CLK_CLK_MAX, 60000000, 1 }, diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c index 6d7a613f2656..9e6260869eb9 100644 --- a/drivers/clk/tegra/clk-tegra210.c +++ b/drivers/clk/tegra/clk-tegra210.c @@ -40,6 +40,7 @@ #define CLK_SOURCE_CSITE 0x1d4 #define CLK_SOURCE_EMC 0x19c +#define CLK_SOURCE_SOR1 0x410 #define PLLC_BASE 0x80 #define PLLC_OUT 0x84 @@ -264,6 +265,7 @@ static DEFINE_SPINLOCK(pll_d_lock); static DEFINE_SPINLOCK(pll_e_lock); static DEFINE_SPINLOCK(pll_re_lock); static DEFINE_SPINLOCK(pll_u_lock); +static DEFINE_SPINLOCK(sor1_lock); static DEFINE_SPINLOCK(emc_lock); /* possible OSC frequencies in Hz */ @@ -2566,8 +2568,8 @@ static int tegra210_enable_pllu(void) reg |= PLL_ENABLE; writel(reg, clk_base + PLLU_BASE); - readl_relaxed_poll_timeout(clk_base + PLLU_BASE, reg, - reg & PLL_BASE_LOCK, 2, 1000); + readl_relaxed_poll_timeout_atomic(clk_base + PLLU_BASE, reg, + reg & PLL_BASE_LOCK, 2, 1000); if (!(reg & PLL_BASE_LOCK)) { pr_err("Timed out waiting for PLL_U to lock\n"); return -ETIMEDOUT; @@ -2628,10 +2630,35 @@ static int tegra210_init_pllu(void) return 0; } +static const char * const sor1_out_parents[] = { + /* + * Bit 0 of the mux selects sor1_pad_clkout, irrespective of bit 1, so + * the sor1_pad_clkout parent appears twice in the list below. This is + * merely to support clk_get_parent() if firmware happened to set + * these bits to 0b11. While not an invalid setting, code should + * always set the bits to 0b01 to select sor1_pad_clkout. + */ + "sor_safe", "sor1_pad_clkout", "sor1", "sor1_pad_clkout", +}; + +static const char * const sor1_parents[] = { + "pll_p", "pll_d_out0", "pll_d2_out0", "clk_m", +}; + +static u32 sor1_parents_idx[] = { 0, 2, 5, 6 }; + +static struct tegra_periph_init_data tegra210_periph[] = { + TEGRA_INIT_DATA_TABLE("sor1", NULL, NULL, sor1_parents, + CLK_SOURCE_SOR1, 29, 0x7, 0, 0, 8, 1, + TEGRA_DIVIDER_ROUND_UP, 183, 0, tegra_clk_sor1, + sor1_parents_idx, 0, &sor1_lock), +}; + static __init void tegra210_periph_clk_init(void __iomem *clk_base, void __iomem *pmc_base) { struct clk *clk; + unsigned int i; /* xusb_ss_div2 */ clk = clk_register_fixed_factor(NULL, "xusb_ss_div2", "xusb_ss_src", 0, @@ -2650,6 +2677,12 @@ static __init void tegra210_periph_clk_init(void __iomem *clk_base, 1, 17, 207); clks[TEGRA210_CLK_DPAUX1] = clk; + clk = clk_register_mux_table(NULL, "sor1_out", sor1_out_parents, + ARRAY_SIZE(sor1_out_parents), 0, + clk_base + CLK_SOURCE_SOR1, 14, 0x3, + 0, NULL, &sor1_lock); + clks[TEGRA210_CLK_SOR1_OUT] = clk; + /* pll_d_dsi_out */ clk = clk_register_gate(NULL, "pll_d_dsi_out", "pll_d_out0", 0, clk_base + PLLD_MISC0, 21, 0, &pll_d_lock); @@ -2694,6 +2727,20 @@ static __init void tegra210_periph_clk_init(void __iomem *clk_base, 0, NULL); clks[TEGRA210_CLK_ACLK] = clk; + for (i = 0; i < ARRAY_SIZE(tegra210_periph); i++) { + struct tegra_periph_init_data *init = &tegra210_periph[i]; + struct clk **clkp; + + clkp = tegra_lookup_dt_id(init->clk_id, tegra210_clks); + if (!clkp) { + pr_warn("clock %u not found\n", init->clk_id); + continue; + } + + clk = tegra_clk_register_periph_data(clk_base, init); + *clkp = clk; + } + tegra_periph_clk_init(clk_base, pmc_base, tegra210_clks, &pll_p_params); } diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c index a2d163f759b4..bee84c554932 100644 --- a/drivers/clk/tegra/clk-tegra30.c +++ b/drivers/clk/tegra/clk-tegra30.c @@ -359,7 +359,7 @@ static struct tegra_clk_pll_freq_table pll_e_freq_table[] = { }; /* PLL parameters */ -static struct tegra_clk_pll_params pll_c_params = { +static struct tegra_clk_pll_params pll_c_params __ro_after_init = { .input_min = 2000000, .input_max = 31000000, .cf_min = 1000000, @@ -388,7 +388,7 @@ static struct div_nmp pllm_nmp = { .override_divp_shift = 15, }; -static struct tegra_clk_pll_params pll_m_params = { +static struct tegra_clk_pll_params pll_m_params __ro_after_init = { .input_min = 2000000, .input_max = 31000000, .cf_min = 1000000, @@ -409,7 +409,7 @@ static struct tegra_clk_pll_params pll_m_params = { TEGRA_PLL_HAS_LOCK_ENABLE | TEGRA_PLL_FIXED, }; -static struct tegra_clk_pll_params pll_p_params = { +static struct tegra_clk_pll_params pll_p_params __ro_after_init = { .input_min = 2000000, .input_max = 31000000, .cf_min = 1000000, @@ -444,7 +444,7 @@ static struct tegra_clk_pll_params pll_a_params = { TEGRA_PLL_HAS_LOCK_ENABLE, }; -static struct tegra_clk_pll_params pll_d_params = { +static struct tegra_clk_pll_params pll_d_params __ro_after_init = { .input_min = 2000000, .input_max = 40000000, .cf_min = 1000000, @@ -461,7 +461,7 @@ static struct tegra_clk_pll_params pll_d_params = { TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE, }; -static struct tegra_clk_pll_params pll_d2_params = { +static struct tegra_clk_pll_params pll_d2_params __ro_after_init = { .input_min = 2000000, .input_max = 40000000, .cf_min = 1000000, @@ -478,7 +478,7 @@ static struct tegra_clk_pll_params pll_d2_params = { TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE, }; -static struct tegra_clk_pll_params pll_u_params = { +static struct tegra_clk_pll_params pll_u_params __ro_after_init = { .input_min = 2000000, .input_max = 40000000, .cf_min = 1000000, @@ -496,7 +496,7 @@ static struct tegra_clk_pll_params pll_u_params = { TEGRA_PLL_HAS_LOCK_ENABLE, }; -static struct tegra_clk_pll_params pll_x_params = { +static struct tegra_clk_pll_params pll_x_params __ro_after_init = { .input_min = 2000000, .input_max = 31000000, .cf_min = 1000000, @@ -513,7 +513,7 @@ static struct tegra_clk_pll_params pll_x_params = { TEGRA_PLL_USE_LOCK | TEGRA_PLL_HAS_LOCK_ENABLE, }; -static struct tegra_clk_pll_params pll_e_params = { +static struct tegra_clk_pll_params pll_e_params __ro_after_init = { .input_min = 12000000, .input_max = 216000000, .cf_min = 12000000, @@ -788,6 +788,7 @@ static struct tegra_clk tegra30_clks[tegra_clk_max] __initdata = { [tegra_clk_extern3] = { .dt_id = TEGRA30_CLK_EXTERN3, .present = true }, [tegra_clk_disp1] = { .dt_id = TEGRA30_CLK_DISP1, .present = true }, [tegra_clk_disp2] = { .dt_id = TEGRA30_CLK_DISP2, .present = true }, + [tegra_clk_ahbdma] = { .dt_id = TEGRA30_CLK_AHBDMA, .present = true }, [tegra_clk_apbdma] = { .dt_id = TEGRA30_CLK_APBDMA, .present = true }, [tegra_clk_rtc] = { .dt_id = TEGRA30_CLK_RTC, .present = true }, [tegra_clk_timer] = { .dt_id = TEGRA30_CLK_TIMER, .present = true }, @@ -964,7 +965,7 @@ static void __init tegra30_super_clk_init(void) * U71 divider of cclk_lp. */ clk = tegra_clk_register_divider("pll_p_out3_cclklp", "pll_p_out3", - clk_base + SUPER_CCLKG_DIVIDER, 0, + clk_base + SUPER_CCLKLP_DIVIDER, 0, TEGRA_DIVIDER_INT, 16, 8, 1, NULL); clk_register_clkdev(clk, "pll_p_out3_cclklp", NULL); @@ -1079,9 +1080,7 @@ static void __init tegra30_periph_clk_init(void) for (i = 0; i < ARRAY_SIZE(tegra_periph_clk_list); i++) { data = &tegra_periph_clk_list[i]; - clk = tegra_clk_register_periph(data->name, data->p.parent_names, - data->num_parents, &data->periph, - clk_base, data->offset, data->flags); + clk = tegra_clk_register_periph_data(clk_base, data); clks[data->clk_id] = clk; } diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h index 872f1189ad7f..3b2763df51c2 100644 --- a/drivers/clk/tegra/clk.h +++ b/drivers/clk/tegra/clk.h @@ -662,6 +662,9 @@ struct tegra_periph_init_data { _clk_num, _gate_flags, _clk_id,\ NULL, 0, NULL) +struct clk *tegra_clk_register_periph_data(void __iomem *clk_base, + struct tegra_periph_init_data *init); + /** * struct clk_super_mux - super clock * diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c index 73ca55b7b7ec..33683b5a0d48 100644 --- a/drivers/firmware/tegra/bpmp.c +++ b/drivers/firmware/tegra/bpmp.c @@ -194,16 +194,24 @@ static int tegra_bpmp_wait_master_free(struct tegra_bpmp_channel *channel) } static ssize_t __tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, - void *data, size_t size) + void *data, size_t size, int *ret) { + int err; + if (data && size > 0) memcpy(data, channel->ib->data, size); - return tegra_ivc_read_advance(channel->ivc); + err = tegra_ivc_read_advance(channel->ivc); + if (err < 0) + return err; + + *ret = channel->ib->code; + + return 0; } static ssize_t tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, - void *data, size_t size) + void *data, size_t size, int *ret) { struct tegra_bpmp *bpmp = channel->bpmp; unsigned long flags; @@ -217,7 +225,7 @@ static ssize_t tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, } spin_lock_irqsave(&bpmp->lock, flags); - err = __tegra_bpmp_channel_read(channel, data, size); + err = __tegra_bpmp_channel_read(channel, data, size, ret); clear_bit(index, bpmp->threaded.allocated); spin_unlock_irqrestore(&bpmp->lock, flags); @@ -337,7 +345,8 @@ int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp, if (err < 0) return err; - return __tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size); + return __tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size, + &msg->rx.ret); } EXPORT_SYMBOL_GPL(tegra_bpmp_transfer_atomic); @@ -371,7 +380,8 @@ int tegra_bpmp_transfer(struct tegra_bpmp *bpmp, if (err == 0) return -ETIMEDOUT; - return tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size); + return tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size, + &msg->rx.ret); } EXPORT_SYMBOL_GPL(tegra_bpmp_transfer); diff --git a/include/dt-bindings/clock/exynos4.h b/include/dt-bindings/clock/exynos4.h index c40111f36d5e..e9f9d400c322 100644 --- a/include/dt-bindings/clock/exynos4.h +++ b/include/dt-bindings/clock/exynos4.h @@ -272,4 +272,39 @@ /* must be greater than maximal clock id */ #define CLK_NR_CLKS 461 +/* Exynos4x12 ISP clocks */ +#define CLK_ISP_FIMC_ISP 1 +#define CLK_ISP_FIMC_DRC 2 +#define CLK_ISP_FIMC_FD 3 +#define CLK_ISP_FIMC_LITE0 4 +#define CLK_ISP_FIMC_LITE1 5 +#define CLK_ISP_MCUISP 6 +#define CLK_ISP_GICISP 7 +#define CLK_ISP_SMMU_ISP 8 +#define CLK_ISP_SMMU_DRC 9 +#define CLK_ISP_SMMU_FD 10 +#define CLK_ISP_SMMU_LITE0 11 +#define CLK_ISP_SMMU_LITE1 12 +#define CLK_ISP_PPMUISPMX 13 +#define CLK_ISP_PPMUISPX 14 +#define CLK_ISP_MCUCTL_ISP 15 +#define CLK_ISP_MPWM_ISP 16 +#define CLK_ISP_I2C0_ISP 17 +#define CLK_ISP_I2C1_ISP 18 +#define CLK_ISP_MTCADC_ISP 19 +#define CLK_ISP_PWM_ISP 20 +#define CLK_ISP_WDT_ISP 21 +#define CLK_ISP_UART_ISP 22 +#define CLK_ISP_ASYNCAXIM 23 +#define CLK_ISP_SMMU_ISPCX 24 +#define CLK_ISP_SPI0_ISP 25 +#define CLK_ISP_SPI1_ISP 26 + +#define CLK_ISP_DIV_ISP0 27 +#define CLK_ISP_DIV_ISP1 28 +#define CLK_ISP_DIV_MCUISP0 29 +#define CLK_ISP_DIV_MCUISP1 30 + +#define CLK_NR_ISP_CLKS 31 + #endif /* _DT_BINDINGS_CLOCK_EXYNOS_4_H */ diff --git a/include/dt-bindings/clock/gxbb-clkc.h b/include/dt-bindings/clock/gxbb-clkc.h index c04a76d8facf..7c5a6f3825a5 100644 --- a/include/dt-bindings/clock/gxbb-clkc.h +++ b/include/dt-bindings/clock/gxbb-clkc.h @@ -113,5 +113,16 @@ #define CLKID_SD_EMMC_A_CLK0 119 #define CLKID_SD_EMMC_B_CLK0 122 #define CLKID_SD_EMMC_C_CLK0 125 +#define CLKID_VPU_0_SEL 126 +#define CLKID_VPU_0 128 +#define CLKID_VPU_1_SEL 129 +#define CLKID_VPU_1 131 +#define CLKID_VPU 132 +#define CLKID_VAPB_0_SEL 133 +#define CLKID_VAPB_0 135 +#define CLKID_VAPB_1_SEL 136 +#define CLKID_VAPB_1 138 +#define CLKID_VAPB_SEL 139 +#define CLKID_VAPB 140 #endif /* __GXBB_CLKC_H */ diff --git a/include/dt-bindings/clock/r8a77970-cpg-mssr.h b/include/dt-bindings/clock/r8a77970-cpg-mssr.h new file mode 100644 index 000000000000..4146395595b1 --- /dev/null +++ b/include/dt-bindings/clock/r8a77970-cpg-mssr.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2016 Renesas Electronics Corp. + * Copyright (C) 2017 Cogent Embedded, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__ +#define __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__ + +#include <dt-bindings/clock/renesas-cpg-mssr.h> + +/* r8a77970 CPG Core Clocks */ +#define R8A77970_CLK_Z2 0 +#define R8A77970_CLK_ZR 1 +#define R8A77970_CLK_ZTR 2 +#define R8A77970_CLK_ZTRD2 3 +#define R8A77970_CLK_ZT 4 +#define R8A77970_CLK_ZX 5 +#define R8A77970_CLK_S1D1 6 +#define R8A77970_CLK_S1D2 7 +#define R8A77970_CLK_S1D4 8 +#define R8A77970_CLK_S2D1 9 +#define R8A77970_CLK_S2D2 10 +#define R8A77970_CLK_S2D4 11 +#define R8A77970_CLK_LB 12 +#define R8A77970_CLK_CL 13 +#define R8A77970_CLK_ZB3 14 +#define R8A77970_CLK_ZB3D2 15 +#define R8A77970_CLK_DDR 16 +#define R8A77970_CLK_CR 17 +#define R8A77970_CLK_CRD2 18 +#define R8A77970_CLK_SD0H 19 +#define R8A77970_CLK_SD0 20 +#define R8A77970_CLK_RPC 21 +#define R8A77970_CLK_RPCD2 22 +#define R8A77970_CLK_MSO 23 +#define R8A77970_CLK_CANFD 24 +#define R8A77970_CLK_CSI0 25 +#define R8A77970_CLK_FRAY 26 +#define R8A77970_CLK_CP 27 +#define R8A77970_CLK_CPEX 28 +#define R8A77970_CLK_R 29 +#define R8A77970_CLK_OSC 30 + +#endif /* __DT_BINDINGS_CLOCK_R8A77970_CPG_MSSR_H__ */ diff --git a/include/dt-bindings/clock/rk3188-cru-common.h b/include/dt-bindings/clock/rk3188-cru-common.h index eff4319d008b..b9462b7d3dfe 100644 --- a/include/dt-bindings/clock/rk3188-cru-common.h +++ b/include/dt-bindings/clock/rk3188-cru-common.h @@ -68,12 +68,14 @@ #define ACLK_LCDC1 196 #define ACLK_GPU 197 #define ACLK_SMC 198 -#define ACLK_CIF 199 +#define ACLK_CIF1 199 #define ACLK_IPP 200 #define ACLK_RGA 201 #define ACLK_CIF0 202 #define ACLK_CPU 203 #define ACLK_PERI 204 +#define ACLK_VEPU 205 +#define ACLK_VDPU 206 /* pclk gates */ #define PCLK_GRF 320 @@ -134,8 +136,11 @@ #define HCLK_NANDC0 467 #define HCLK_CPU 468 #define HCLK_PERI 469 +#define HCLK_CIF1 470 +#define HCLK_VEPU 471 +#define HCLK_VDPU 472 -#define CLK_NR_CLKS (HCLK_PERI + 1) +#define CLK_NR_CLKS (HCLK_VDPU + 1) /* soft-reset indices */ #define SRST_MCORE 2 diff --git a/include/dt-bindings/clock/rk3368-cru.h b/include/dt-bindings/clock/rk3368-cru.h index aeb83e581a11..a0063ed7284a 100644 --- a/include/dt-bindings/clock/rk3368-cru.h +++ b/include/dt-bindings/clock/rk3368-cru.h @@ -156,6 +156,7 @@ #define PCLK_ISP 366 #define PCLK_VIP 367 #define PCLK_WDT 368 +#define PCLK_EFUSE256 369 /* hclk gates */ #define HCLK_SFC 448 diff --git a/include/dt-bindings/clock/s3c2443.h b/include/dt-bindings/clock/s3c2443.h index 37e66b054d64..f3ba68a25ecb 100644 --- a/include/dt-bindings/clock/s3c2443.h +++ b/include/dt-bindings/clock/s3c2443.h @@ -26,6 +26,8 @@ #define ARMCLK 4 #define HCLK 5 #define PCLK 6 +#define MPLL 7 +#define EPLL 8 /* Special clocks */ #define SCLK_HSSPI0 16 diff --git a/include/dt-bindings/clock/sun4i-a10-ccu.h b/include/dt-bindings/clock/sun4i-a10-ccu.h index c5a53f38d654..e4fa61be5c75 100644 --- a/include/dt-bindings/clock/sun4i-a10-ccu.h +++ b/include/dt-bindings/clock/sun4i-a10-ccu.h @@ -43,6 +43,8 @@ #define _DT_BINDINGS_CLK_SUN4I_A10_H_ #define CLK_HOSC 1 +#define CLK_PLL_VIDEO0_2X 9 +#define CLK_PLL_VIDEO1_2X 18 #define CLK_CPU 20 /* AHB Gates */ diff --git a/include/dt-bindings/clock/sun6i-a31-ccu.h b/include/dt-bindings/clock/sun6i-a31-ccu.h index 4482530fb6f5..c5d13340184a 100644 --- a/include/dt-bindings/clock/sun6i-a31-ccu.h +++ b/include/dt-bindings/clock/sun6i-a31-ccu.h @@ -43,8 +43,12 @@ #ifndef _DT_BINDINGS_CLK_SUN6I_A31_H_ #define _DT_BINDINGS_CLK_SUN6I_A31_H_ +#define CLK_PLL_VIDEO0_2X 7 + #define CLK_PLL_PERIPH 10 +#define CLK_PLL_VIDEO1_2X 13 + #define CLK_CPU 18 #define CLK_AHB1_MIPIDSI 23 diff --git a/include/dt-bindings/clock/tegra210-car.h b/include/dt-bindings/clock/tegra210-car.h index 46689cd3750b..43c4a8407333 100644 --- a/include/dt-bindings/clock/tegra210-car.h +++ b/include/dt-bindings/clock/tegra210-car.h @@ -309,6 +309,7 @@ #define TEGRA210_CLK_BLINK 280 /* 281 */ #define TEGRA210_CLK_SOR1_SRC 282 +#define TEGRA210_CLK_SOR1_OUT 282 /* 283 */ #define TEGRA210_CLK_XUSB_HOST_SRC 284 #define TEGRA210_CLK_XUSB_FALCON_SRC 285 diff --git a/include/soc/tegra/bpmp.h b/include/soc/tegra/bpmp.h index 9ba65222bd3f..57519f4c126a 100644 --- a/include/soc/tegra/bpmp.h +++ b/include/soc/tegra/bpmp.h @@ -110,6 +110,7 @@ struct tegra_bpmp_message { struct { void *data; size_t size; + int ret; } rx; }; |