Patchwork [U-Boot,10/11,v3] Exynos: pwm: Use generic api to get pwm clk freq

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Submitter Akshay Saraswat
Date March 28, 2013, 2:32 p.m.
Message ID <>
Download mbox | patch
Permalink /patch/232046/
State Accepted
Delegated to: Minkyu Kang
Headers show


Akshay Saraswat - March 28, 2013, 2:32 p.m.
From: Padmavathi Venna <>

Use generic api to get the pwm clock frequency

Test with command "sf probe 1:0; time sf read 40008000 0 1000".
Try with different numbers of bytes and see that sane values are obtained
Build and boot U-boot with this patch, backlight works properly.

Signed-off-by: Padmavathi Venna <>
Signed-off-by: Akshay Saraswat <>
Acked-by: Simon Glass <>
Changes since v2:
	- Replaced "exynos5_get_pwm_clk" with "clock_get_periph_rate" in get_pwm_clk
	  instead of replacing everywhere.
	- Added "Acked-by: Simon Glass".

Changes since v1:
	- Restored get_pwm_clk call in case of non-exynos5 cpu.

 arch/arm/cpu/armv7/exynos/clock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c
index 5860c8f..1e54e47 100644
--- a/arch/arm/cpu/armv7/exynos/clock.c
+++ b/arch/arm/cpu/armv7/exynos/clock.c
@@ -1354,7 +1354,7 @@  unsigned long get_i2c_clk(void)
 unsigned long get_pwm_clk(void)
 	if (cpu_is_exynos5())
-		return exynos5_get_pwm_clk();
+		return clock_get_periph_rate(PERIPH_ID_PWM0);
 	else {
 		if (proid_is_exynos4412())
 			return exynos4x12_get_pwm_clk();