On Thu, 30 Apr 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 <[email protected]> > --- > drivers/mfd/arizona-core.c | 10 ++++++++++ > 1 files changed, 10 insertions(+), 0 deletions(-)
Acked-by: Lee Jones <[email protected]> > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
