linux-kernel - Re: [PATCH] pinctrl: stm32: consider the GPIO offset to expose all the GPIO lines

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Message-ID: <CACRpkdb4_zm8ywUsDUm=ZMG4jL=t-3gQx1sPEWQaFpBr_rRxGw@mail.gmail.com>
Date:   Thu, 16 Dec 2021 04:15:46 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Fabien Dessenne <fabien.dessenne@...s.st.com>
Cc:     Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        linux-gpio@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Christoph Fritz <chf.fritz@...glemail.com>
Subject: Re: [PATCH] pinctrl: stm32: consider the GPIO offset to expose all
 the GPIO lines

On Wed, Dec 15, 2021 at 10:58 AM Fabien Dessenne
<fabien.dessenne@...s.st.com> wrote:

> Consider the GPIO controller offset (from "gpio-ranges") to compute the
> maximum GPIO line number.
> This fixes an issue where gpio-ranges uses a non-null offset.
>   e.g.: gpio-ranges = <&pinctrl 6 86 10>
>         In that case the last valid GPIO line is not 9 but 15 (6 + 10 - 1)
>
> Fixes: 67e2996f72c7 ("pinctrl: stm32: fix the reported number of GPIO lines per bank")
> Reported-by: Christoph Fritz <chf.fritz@...glemail.com>
> Signed-off-by: Fabien Dessenne <fabien.dessenne@...s.st.com>

Patch applied for fixes and tagged for stable.

Yours,
Linus Walleij