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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@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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@ -259,6 +259,16 @@ static inline void arizona_enable_reset(struct arizona *arizona)
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static void arizona_disable_reset(struct arizona *arizona)
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{
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if (arizona->pdata.reset) {
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switch (arizona->type) {
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case WM5110:
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case WM8280:
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/* Meet requirements for minimum reset duration */
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msleep(5);
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break;
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default:
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break;
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}
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gpio_set_value_cansleep(arizona->pdata.reset, 1);
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msleep(1);
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}
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