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>
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 @@
/*
* 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 @@
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 @@
return;
}
- samsung_pwm_clocksource_init();
+ _samsung_pwm_clocksource_init();
}
static const struct samsung_pwm_variant s3c24xx_variant = {
@@ -468,3 +479,4 @@
samsung_pwm_alloc(np, &s5p_variant);
}
CLOCKSOURCE_OF_DECLARE(s5pc100_pwm, "samsung,s5pc100-pwm", s5p_pwm_clocksource_init);
+#endif