On Mon, Dec 21, 2020 at 08:36:02AM +0100, Marek Szyprowski wrote: > Hi Krzysztof, > > On 18.12.2020 15:22, Krzysztof Kozlowski wrote: > > On Fri, Dec 18, 2020 at 02:25:39PM +0100, Marek Szyprowski wrote: > >> On 10.12.2020 22:29, Krzysztof Kozlowski wrote: > >>> 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 Samsung PMIC drivers are used only on Devicetree boards. > >>> > >>> Additionally, the PMIC datasheets describe the interrupt line as active > >>> low with a requirement of acknowledge from the CPU therefore the edge > >>> falling is not correct. > >>> > >>> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> > >> Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > >> > >> It looks that this together with DTS change fixes RTC alarm failure that > >> I've observed from time to time on TM2e board! > > Great! I'll add this to the commit msg. > > > > Thanks for testing. > > BTW, while playing with this, maybe it would make sense to fix the > reported interrupt type for the PMIC sub-interrupts: > > # grep s2mps /proc/interrupts > 120: 0 gpa0 7 Level s2mps13 > 121: 0 s2mps13 10 Edge rtc-alarm0 I also spotted this. It's a virtual interrupt and I am not sure whether we can actually configure it when the hardware does not allow to set the type (the regmap_irq_type requires register offsets). Best regards, Krzysztof
