From a22db0f38243f68957c89b1b9689a2064507bed6 Mon Sep 17 00:00:00 2001 From: Russell King Date: Fri, 3 Feb 2012 19:05:13 +0000 Subject: [PATCH] ARM: sa1111: fix PWM state on suspend We should not write to the SA1111 registers after setting the SLEEP bit. Moreover, the manual says that the PWM registers should be disabled before we enter sleep. So, move the clearing of these registers earlier in the suspend sequence. Acked-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/common/sa1111.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index c7bed309b3aa..f0d9faadcc3f 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -905,6 +905,9 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state) save->skpwm0 = sa1111_readl(base + SA1111_SKPWM0); save->skpwm1 = sa1111_readl(base + SA1111_SKPWM1); + sa1111_writel(0, sachip->base + SA1111_SKPWM0); + sa1111_writel(0, sachip->base + SA1111_SKPWM1); + base = sachip->base + SA1111_INTC; save->intpol0 = sa1111_readl(base + SA1111_INTPOL0); save->intpol1 = sa1111_readl(base + SA1111_INTPOL1); @@ -920,8 +923,6 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state) */ val = sa1111_readl(sachip->base + SA1111_SKCR); sa1111_writel(val | SKCR_SLEEP, sachip->base + SA1111_SKCR); - sa1111_writel(0, sachip->base + SA1111_SKPWM0); - sa1111_writel(0, sachip->base + SA1111_SKPWM1); clk_disable(sachip->clk); -- 2.20.1