Messages in this thread | | | Date | Wed, 13 May 2015 13:22:00 +0100 | From | Lee Jones <> | Subject | Re: [RESEND PATCH v3 10/10] mfd: wm5110: Add delay before releasing reset line |
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On Mon, 11 May 2015, Charles Keepax wrote:
> 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> > Acked-by: Lee Jones <lee.jones@linaro.org> > --- > drivers/mfd/arizona-core.c | 10 ++++++++++ > 1 files changed, 10 insertions(+), 0 deletions(-)
Applied, thanks.
> diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c > index f1ff68a..93e4d94 100644 > --- a/drivers/mfd/arizona-core.c > +++ b/drivers/mfd/arizona-core.c > @@ -259,6 +259,16 @@ 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: > + /* Meet requirements for minimum reset duration */ > + msleep(5); > + break; > + default: > + break; > + } > + > gpio_set_value_cansleep(arizona->pdata.reset, 1); > msleep(1); > }
-- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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