linux-kernel - Re: [PATCH v3] gpio: tegra186: Check GPIO pin permission before access.

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Message-ID: <CACRpkdYkJdZ67kyTnDg3xFzO8MJhC0nHK98O+KJwCLBqV_5f-Q@mail.gmail.com>
Date:   Mon, 17 Oct 2022 11:31:09 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Prathamesh Shete <pshete@...dia.com>
Cc:     thierry.reding@...il.com, bgolaszewski@...libre.com,
        jonathanh@...dia.com, linux-gpio@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        smangipudi@...dia.com, kyarlagadda@...dia.com,
        Manish Bhardwaj <mbhardwaj@...dia.com>
Subject: Re: [PATCH v3] gpio: tegra186: Check GPIO pin permission before access.

On Fri, Oct 7, 2022 at 7:59 AM Prathamesh Shete <pshete@...dia.com> wrote:

> This change checks if we have the necessary permission to
> access the GPIO. For devices that have support for virtualisation
> we need to check both the TEGRA186_GPIO_VM_REG and the
> TEGRA186_GPIO_SCR_REG registers. For device that do not have
> virtualisation support for GPIOs we only need to check the
> TEGRA186_GPIO_SCR_REG register.
>
> Signed-off-by: Manish Bhardwaj <mbhardwaj@...dia.com>
> Signed-off-by: Prathamesh Shete <pshete@...dia.com>

Very nice patch!
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij