On Wed, 02 Jun 2021, Krzysztof Kozlowski wrote: > From: Krzysztof Kozlowski <krzk@xxxxxxxxxx> > > Interrupt line can be configured on different hardware in different way, > even inverted. Therefore driver should not enforce specific trigger > type - edge falling - but instead rely on Devicetree to configure it. > > The Maxim 77686 datasheet describes the interrupt line as active low > with a requirement of acknowledge from the CPU therefore the edge > falling is not correct. > > The interrupt line is shared between PMIC and RTC driver, so using level > sensitive interrupt is here especially important to avoid races. With > an edge configuration in case if first PMIC signals interrupt followed > shortly after by the RTC, the interrupt might not be yet cleared/acked > thus the second one would not be noticed. > > Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> > Acked-by: Rob Herring <robh@xxxxxxxxxx> > > --- > > Changes since v1: > 1. Add ack. > --- > Documentation/devicetree/bindings/clock/maxim,max77686.txt | 4 ++-- > Documentation/devicetree/bindings/mfd/max77686.txt | 2 +- > Documentation/devicetree/bindings/regulator/max77686.txt | 2 +- > drivers/mfd/max77686.c | 3 +-- > 4 files changed, 5 insertions(+), 6 deletions(-) Applied, thanks. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog
