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Date: Wed, 8 Apr 2015 16:56:18 +0100 From: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com> To: lee.jones@...aro.org Cc: sameo@...ux.intel.com, broonie@...nel.org, lgirdwood@...il.com, patches@...nsource.wolfsonmicro.com, linux-kernel@...r.kernel.org Subject: [PATCH 9/9] mfd: wm5110: Add delay before releasing reset line On the wm5110 it is important the reset line is held for slightly longer to ensure the device starts up well. This patch adds a 5mS delay for this. Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com> --- drivers/mfd/arizona-core.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index 8ac8f9d..0a563ccf 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -259,6 +259,15 @@ static inline void arizona_enable_reset(struct arizona *arizona) static void arizona_disable_reset(struct arizona *arizona) { if (arizona->pdata.reset) { + switch (arizona->type) { + case WM5110: + case WM8280: + msleep(5); + break; + default: + break; + } + gpio_set_value_cansleep(arizona->pdata.reset, 1); msleep(1); } -- 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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