Commit f9bb48a2 authored by Tomasz Figa's avatar Tomasz Figa Committed by Olof Johansson
Browse files

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: default avatarTomasz Figa <t.figa@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarKukjin Kim <kgene.kim@samsung.com>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
parent 09d718a7
......@@ -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
......
......@@ -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
......@@ -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 */
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