Messages in this thread Patch in this message | | | From | Charles Keepax <> | Subject | [PATCH v2 5/5] mfd: wm5110: Add delay before releasing reset line | Date | Tue, 24 Mar 2015 16:59:56 +0000 |
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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@opensource.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 ba48e17..54da62d 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -276,6 +276,15 @@ 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
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