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>
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Родитель
09d718a78c
Коммит
f9bb48a2c2
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@ -70,7 +70,6 @@ config CLKSRC_METAG_GENERIC
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config CLKSRC_SAMSUNG_PWM
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bool
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depends on OF
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select CLKSRC_MMIO
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help
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This is a new clocksource driver for the PWM timer found in
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@ -356,7 +356,7 @@ static void __init samsung_timer_resources(void)
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/*
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* PWM master driver
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*/
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static void __init samsung_pwm_clocksource_init(void)
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static void __init _samsung_pwm_clocksource_init(void)
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{
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u8 mask;
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int channel;
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@ -378,6 +378,17 @@ static void __init samsung_pwm_clocksource_init(void)
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samsung_clocksource_init();
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}
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void __init samsung_pwm_clocksource_init(void __iomem *base,
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unsigned int *irqs, struct samsung_pwm_variant *variant)
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{
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pwm.base = base;
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memcpy(&pwm.variant, variant, sizeof(pwm.variant));
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memcpy(pwm.irq, irqs, SAMSUNG_PWM_NUM * sizeof(*irqs));
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_samsung_pwm_clocksource_init();
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}
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#ifdef CONFIG_CLKSRC_OF
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static void __init samsung_pwm_alloc(struct device_node *np,
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const struct samsung_pwm_variant *variant)
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{
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@ -414,7 +425,7 @@ static void __init samsung_pwm_alloc(struct device_node *np,
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return;
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}
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samsung_pwm_clocksource_init();
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_samsung_pwm_clocksource_init();
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}
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static const struct samsung_pwm_variant s3c24xx_variant = {
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@ -468,3 +479,4 @@ static void __init s5p_pwm_clocksource_init(struct device_node *np)
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samsung_pwm_alloc(np, &s5p_variant);
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}
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CLOCKSOURCE_OF_DECLARE(s5pc100_pwm, "samsung,s5pc100-pwm", s5p_pwm_clocksource_init);
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#endif
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@ -30,4 +30,7 @@ struct samsung_pwm_variant {
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bool has_tint_cstat;
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};
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void samsung_pwm_clocksource_init(void __iomem *base,
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unsigned int *irqs, struct samsung_pwm_variant *variant);
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#endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */
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