Message ID | 20240216223245.12273-4-semen.protsenko@linaro.org |
---|---|
State | New |
Headers | |
Series | clk: samsung: Add CPU clocks for Exynos850 | |
Commit Message
diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c index e02730776aaa..6412fd2580e0 100644 --- a/drivers/clk/samsung/clk-cpu.c +++ b/drivers/clk/samsung/clk-cpu.c @@ -34,6 +34,8 @@ #include <linux/slab.h> #include <linux/clk.h> #include <linux/clk-provider.h> + +#include "clk.h" #include "clk-cpu.h" #define E4210_SRC_CPU 0x0 @@ -64,6 +66,33 @@ #define DIV_MASK_ALL GENMASK(31, 0) #define MUX_MASK GENMASK(2, 0) +/** + * struct exynos_cpuclk - information about clock supplied to a CPU core + * @hw: handle between CCF and CPU clock + * @alt_parent: alternate parent clock to use when switching the speed + * of the primary parent clock + * @ctrl_base: base address of the clock controller + * @lock: cpu clock domain register access lock + * @cfg: cpu clock rate configuration data + * @num_cfgs: number of array elements in @cfg array + * @clk_nb: clock notifier registered for changes in clock speed of the + * primary parent clock + * @flags: configuration flags for the CPU clock + * + * This structure holds information required for programming the CPU clock for + * various clock speeds. + */ +struct exynos_cpuclk { + struct clk_hw hw; + const struct clk_hw *alt_parent; + void __iomem *ctrl_base; + spinlock_t *lock; + const struct exynos_cpuclk_cfg_data *cfg; + const unsigned long num_cfgs; + struct notifier_block clk_nb; + unsigned long flags; +}; + /* * Helper function to wait until divider(s) have stabilized after the divider * value has changed. diff --git a/drivers/clk/samsung/clk-cpu.h b/drivers/clk/samsung/clk-cpu.h index 0164bd9ad021..ee57f3638fed 100644 --- a/drivers/clk/samsung/clk-cpu.h +++ b/drivers/clk/samsung/clk-cpu.h @@ -8,7 +8,12 @@ #ifndef __SAMSUNG_CLK_CPU_H #define __SAMSUNG_CLK_CPU_H -#include "clk.h" +/* The CPU clock registers have DIV1 configuration register */ +#define CLK_CPU_HAS_DIV1 BIT(0) +/* When ALT parent is active, debug clocks need safe divider values */ +#define CLK_CPU_NEEDS_DEBUG_ALT_DIV BIT(1) +/* The CPU clock registers have Exynos5433-compatible layout */ +#define CLK_CPU_HAS_E5433_REGS_LAYOUT BIT(2) /** * struct exynos_cpuclk_cfg_data - config data to setup cpu clocks @@ -28,38 +33,4 @@ struct exynos_cpuclk_cfg_data { unsigned long div1; }; -/** - * struct exynos_cpuclk - information about clock supplied to a CPU core - * @hw: handle between CCF and CPU clock - * @alt_parent: alternate parent clock to use when switching the speed - * of the primary parent clock - * @ctrl_base: base address of the clock controller - * @lock: cpu clock domain register access lock - * @cfg: cpu clock rate configuration data - * @num_cfgs: number of array elements in @cfg array - * @clk_nb: clock notifier registered for changes in clock speed of the - * primary parent clock - * @flags: configuration flags for the CPU clock - * - * This structure holds information required for programming the CPU clock for - * various clock speeds. - */ -struct exynos_cpuclk { - struct clk_hw hw; - const struct clk_hw *alt_parent; - void __iomem *ctrl_base; - spinlock_t *lock; - const struct exynos_cpuclk_cfg_data *cfg; - const unsigned long num_cfgs; - struct notifier_block clk_nb; - unsigned long flags; - -/* The CPU clock registers have DIV1 configuration register */ -#define CLK_CPU_HAS_DIV1 (1 << 0) -/* When ALT parent is active, debug clocks need safe divider values */ -#define CLK_CPU_NEEDS_DEBUG_ALT_DIV (1 << 1) -/* The CPU clock registers have Exynos5433-compatible layout */ -#define CLK_CPU_HAS_E5433_REGS_LAYOUT (1 << 2) -}; - #endif /* __SAMSUNG_CLK_CPU_H */