diff options
| -rw-r--r-- | arch/arm/mach-omap2/clock.c | 17 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clock.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/io.c | 2 | ||||
| -rw-r--r-- | drivers/clk/ti/clk.c | 21 | ||||
| -rw-r--r-- | drivers/clk/ti/clock.h | 2 | ||||
| -rw-r--r-- | drivers/clk/ti/clockdomain.c | 2 | ||||
| -rw-r--r-- | include/linux/clk/ti.h | 3 |
7 files changed, 42 insertions, 6 deletions
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index 99875dba803a..40a88c2e4016 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -113,6 +113,19 @@ static struct ti_clk_ll_ops omap_clk_ll_ops = { }; /** + * omap2_clk_setup_ll_ops - setup clock driver low-level ops + * + * Sets up clock driver low-level platform ops. These are needed + * for register accesses and various other misc platform operations. + * Returns 0 on success, -EBUSY if low level ops have been registered + * already. + */ +int __init omap2_clk_setup_ll_ops(void) +{ + return ti_clk_setup_ll_ops(&omap_clk_ll_ops); +} + +/** * omap2_clk_provider_init - initialize a clock provider * @match_table: DT device table to match for devices to init * @np: device node pointer for the this clock provider @@ -130,8 +143,6 @@ int __init omap2_clk_provider_init(struct device_node *np, int index, { struct clk_iomap *io; - ti_clk_ll_ops = &omap_clk_ll_ops; - io = kzalloc(sizeof(*io), GFP_KERNEL); io->regmap = syscon; @@ -155,8 +166,6 @@ void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem) { struct clk_iomap *io; - ti_clk_ll_ops = &omap_clk_ll_ops; - io = memblock_virt_alloc(sizeof(*io), 0); io->mem = mem; diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 1986ab216b1a..a7051d6a05e9 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -83,6 +83,7 @@ struct regmap; int __init omap2_clk_provider_init(struct device_node *np, int index, struct regmap *syscon, void __iomem *mem); void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem); +int __init omap2_clk_setup_ll_ops(void); void __init ti_clk_init_features(void); #endif diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 74678565cd97..a253aafbb9a2 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -722,6 +722,8 @@ int __init omap_clk_init(void) ti_clk_init_features(); + omap2_clk_setup_ll_ops(); + if (of_have_populated_dt()) { ret = omap_control_init(); if (ret) diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c index 5baea03cfc92..58b83e0af90f 100644 --- a/drivers/clk/ti/clk.c +++ b/drivers/clk/ti/clk.c @@ -33,6 +33,27 @@ static struct device_node *clocks_node_ptr[CLK_MAX_MEMMAPS]; struct ti_clk_features ti_clk_features; /** + * ti_clk_setup_ll_ops - setup low level clock operations + * @ops: low level clock ops descriptor + * + * Sets up low level clock operations for TI clock driver. This is used + * to provide various callbacks for the clock driver towards platform + * specific code. Returns 0 on success, -EBUSY if ll_ops have been + * registered already. + */ +int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops) +{ + if (ti_clk_ll_ops) { + pr_err("Attempt to register ll_ops multiple times.\n"); + return -EBUSY; + } + + ti_clk_ll_ops = ops; + + return 0; +} + +/** * ti_dt_clocks_register - register DT alias clocks during boot * @oclks: list of clocks to register * diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h index 3c43125b9cc9..d4d232fd89bc 100644 --- a/drivers/clk/ti/clock.h +++ b/drivers/clk/ti/clock.h @@ -280,4 +280,6 @@ long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, unsigned long *best_parent_rate, struct clk_hw **best_parent_clk); +extern struct ti_clk_ll_ops *ti_clk_ll_ops; + #endif diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c index 61ef87b1a688..80a7b6944d10 100644 --- a/drivers/clk/ti/clockdomain.c +++ b/drivers/clk/ti/clockdomain.c @@ -21,6 +21,8 @@ #include <linux/of_address.h> #include <linux/clk/ti.h> +#include "clock.h" + #undef pr_fmt #define pr_fmt(fmt) "%s: " fmt, __func__ diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h index 5eccdf5c0e84..5b644313e38a 100644 --- a/include/linux/clk/ti.h +++ b/include/linux/clk/ti.h @@ -235,8 +235,6 @@ struct ti_clk_ll_ops { u8 *idlest_reg_id); }; -extern struct ti_clk_ll_ops *ti_clk_ll_ops; - #define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw) void omap2_init_clk_clkdm(struct clk_hw *clk); @@ -255,6 +253,7 @@ unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk); void ti_dt_clk_init_provider(struct device_node *np, int index); void ti_dt_clk_init_retry_clks(void); void ti_dt_clockdomains_setup(void); +int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops); int omap3430_dt_clk_init(void); int omap3630_dt_clk_init(void); |