This patch extends the driver to support platforms that still use legacy ATAGS-based boot, without device tree, by providing an exported function that can be used from platform code to initialize the clocksource.
Signed-off-by: Tomasz Figa <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> --- drivers/clocksource/Kconfig | 1 - drivers/clocksource/samsung_pwm_timer.c | 16 ++++++++++++++-- include/clocksource/samsung_pwm.h | 3 +++ 3 files changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index 4700305..f151c6c 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -79,7 +79,6 @@ config CLKSRC_EXYNOS_MCT config CLKSRC_SAMSUNG_PWM bool - depends on OF select CLKSRC_MMIO help This is a new clocksource driver for the PWM timer found in diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c index e3257fa..9f4bd6a 100644 --- a/drivers/clocksource/samsung_pwm_timer.c +++ b/drivers/clocksource/samsung_pwm_timer.c @@ -356,7 +356,7 @@ static void __init samsung_timer_resources(void) /* * PWM master driver */ -static void __init samsung_pwm_clocksource_init(void) +static void __init _samsung_pwm_clocksource_init(void) { u8 mask; int channel; @@ -378,6 +378,17 @@ static void __init samsung_pwm_clocksource_init(void) samsung_clocksource_init(); } +void __init samsung_pwm_clocksource_init(void __iomem *base, + unsigned int *irqs, struct samsung_pwm_variant *variant) +{ + pwm.base = base; + memcpy(&pwm.variant, variant, sizeof(pwm.variant)); + memcpy(pwm.irq, irqs, SAMSUNG_PWM_NUM * sizeof(*irqs)); + + _samsung_pwm_clocksource_init(); +} + +#ifdef CONFIG_CLKSRC_OF static void __init samsung_pwm_alloc(struct device_node *np, const struct samsung_pwm_variant *variant) { @@ -414,7 +425,7 @@ static void __init samsung_pwm_alloc(struct device_node *np, return; } - samsung_pwm_clocksource_init(); + _samsung_pwm_clocksource_init(); } static const struct samsung_pwm_variant s3c24xx_variant = { @@ -468,3 +479,4 @@ static void __init s5p_pwm_clocksource_init(struct device_node *np) samsung_pwm_alloc(np, &s5p_variant); } CLOCKSOURCE_OF_DECLARE(s5pc100_pwm, "samsung,s5pc100-pwm", s5p_pwm_clocksource_init); +#endif diff --git a/include/clocksource/samsung_pwm.h b/include/clocksource/samsung_pwm.h index b1d8fe7..5c449c8 100644 --- a/include/clocksource/samsung_pwm.h +++ b/include/clocksource/samsung_pwm.h @@ -30,4 +30,7 @@ struct samsung_pwm_variant { bool has_tint_cstat; }; +void samsung_pwm_clocksource_init(void __iomem *base, + unsigned int *irqs, struct samsung_pwm_variant *variant); + #endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */ -- 1.8.2.1 _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
