Re: [PATCH 9/9] mfd: sec-irq: Do not enforce (incorrect) interrupt trigger type
From: Krzysztof Kozlowski
Date: Fri Dec 18 2020 - 09:23:33 EST
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.
Best regards,
Krzysztof
>
> > ---
> >
> > This patch should wait till DTS changes are merged, as it relies on
> > proper Devicetree.
> > ---