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| author | Tomasz Figa <t.figa@samsung.com> | 2013-04-23 17:46:27 +0200 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-04-28 12:16:54 -0700 |
| commit | f9bb48a2c25a96757d13795ba7cc52687f94446f (patch) | |
| tree | 0667e8283b5007256701b3f8e95b2de6c9ebc159 | |
| parent | 09d718a78c79ddc270dccbfa1b1070b20b9a9ae1 (diff) | |
| download | linux-stable-f9bb48a2c25a96757d13795ba7cc52687f94446f.tar.gz linux-stable-f9bb48a2c25a96757d13795ba7cc52687f94446f.tar.bz2 linux-stable-f9bb48a2c25a96757d13795ba7cc52687f94446f.zip | |
clocksource: samsung_pwm_timer: Add support for non-DT platforms
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 <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
| -rw-r--r-- | drivers/clocksource/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/clocksource/samsung_pwm_timer.c | 16 | ||||
| -rw-r--r-- | include/clocksource/samsung_pwm.h | 3 |
3 files changed, 17 insertions, 3 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index ff5b6d87d65a..6d6174978f95 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -70,7 +70,6 @@ config CLKSRC_METAG_GENERIC 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 e3257fae04e6..9f4bd6aa2343 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 b1d8fe706f1a..5c449c8199e9 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 */ |