linux-kernel - Re: [RESEND PATCH v2 1/4] mfd: sec-irq: Do not enforce (incorrect) interrupt trigger type

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Date:   Tue, 28 Sep 2021 10:52:22 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Chanwoo Choi <cw00.choi@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [RESEND PATCH v2 1/4] mfd: sec-irq: Do not enforce (incorrect)
 interrupt trigger type

On Wed, 02 Jun 2021, Krzysztof Kozlowski wrote:

> From: Krzysztof Kozlowski <krzk@...nel.org>
> 
> 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.
> 
> Marek Szyprowski reports that together with DTS change (proper level in
> DTS) it fixes RTC alarm failure that he observed from time to time on
> TM2e board.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> Tested-by: Marek Szyprowski <m.szyprowski@...sung.com>
> 
> ---
> 
> Rebased on https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git/log/?h=for-mfd-next
> 
> Changes since v1:
> 1. Mention in commit msg that this fixes TM2e RTC alarm.
> 2. Add Marek's tested-by.
> ---
>  drivers/mfd/sec-irq.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)

Applied, thanks.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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