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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-18 05:04:24 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-18 05:04:24 +0100
commitfc35c1966e1372a21a88f6655279361e2f92713f (patch)
tree374588b79aaca55517fb309d7abc87bff4f3382c /drivers/clk/samsung/clk-exynos5433.c
parentMerge tag 'kbuild-misc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff)
parentMerge branch 'clk-cleanup' into clk-next (diff)
downloadlinux-fc35c1966e1372a21a88f6655279361e2f92713f.tar.xz
linux-fc35c1966e1372a21a88f6655279361e2f92713f.zip
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd: "We have two changes to the core framework this time around. The first being a large change that introduces runtime PM support to the clk framework. Now we properly call runtime PM operations on the device providing a clk when the clk is in use. This helps on SoCs where the clks provided by a device need something to be powered on before using the clks, like power domains or regulators. It also helps power those things down when clks aren't in use. The other core change is a devm API addition for clk providers so we can get rid of a bunch of clk driver remove functions that are just doing of_clk_del_provider(). Outside of the core, we have the usual addition of clk drivers and smattering of non-critical fixes to existing drivers. The biggest diff is support for Mediatek MT2712 and MT7622 SoCs, but those patches really just add a bunch of data. By the way, we're trying something new here where we build the tree up with topic branches. We plan to work this into our workflow so that we don't step on each other's toes, and so the fixes branch can be merged on an as-needed basis. Summary: Core: - runtime PM support for clk providers - devm API for of_clk_add_hw_provider() New Drivers: - Mediatek MT2712 and MT7622 - Renesas R-Car V3M SoC Updates: - runtime PM support for Samsung exynos5433/exynos4412 providers - removal of clkdev aliases on Samsung SoCs - convert clk-gpio to use gpio descriptors - various driver cleanups to match kernel coding style - Amlogic Video Processing Unit VPU and VAPB clks - sigma-delta modulation for Allwinner audio PLLs - Allwinner A83t Display clks - support for the second display unit clock on Renesas RZ/G1E - suspend/resume support for Renesas R-Car Gen3 CPG/MSSR - new clock ids for Rockchip rk3188 and rk3368 SoCs - various 'const' markings on clk_ops structures - RPM clk support on Qualcomm MSM8996/MSM8660 SoCs" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits) clk: stm32h7: fix test of clock config clk: pxa: fix building on older compilers clk: sunxi-ng: a83t: Fix i2c buses bits clk: ti: dra7-atl-clock: fix child-node lookups clk: qcom: common: fix legacy board-clock registration clk: uniphier: fix DAPLL2 clock rate of Pro5 clk: uniphier: fix parent of miodmac clock data clk: hi3798cv200: correct parent mux clock for 'clk_sdio0_ciu' clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep() clk: hi3660: fix incorrect uart3 clock freqency clk: kona-setup: Delete error messages for failed memory allocations ARC: clk: fix spelling mistake: "configurarion" -> "configuration" clk: cdce925: remove redundant check for non-null parent_name clk: versatile: Improve sizeof() usage clk: versatile: Delete error messages for failed memory allocations clk: ux500: Improve sizeof() usage clk: ux500: Delete error messages for failed memory allocations clk: spear: Delete error messages for failed memory allocations clk: ti: Delete error messages for failed memory allocations clk: mmp: Adjust checks for NULL pointers ...
Diffstat (limited to 'drivers/clk/samsung/clk-exynos5433.c')
-rw-r--r--drivers/clk/samsung/clk-exynos5433.c409
1 files changed, 324 insertions, 85 deletions
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);