linux-kernel - Re: [PATCH-next 15/20] gpio: gpio-omap: remove dataout variation in context handling

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Message-ID: <CACRpkdZQpG5eHdDUy4aRxr6vEgs0qZHRMXUkCfms_VBYwiQeXg@mail.gmail.com>
Date:   Wed, 12 Jun 2019 10:55:46 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Grygorii Strashko <grygorii.strashko@...com>
Cc:     Russell King <rmk@....linux.org.uk>,
        Tony Lindgren <tony@...mide.com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: Re: [PATCH-next 15/20] gpio: gpio-omap: remove dataout variation in
 context handling

On Mon, Jun 10, 2019 at 7:13 PM Grygorii Strashko
<grygorii.strashko@...com> wrote:

> From: Russell King <rmk+kernel@...linux.org.uk>
>
> When a GPIO block has the set/clear dataout registers implemented, it
> also has the normal dataout register implemented. Reading this register
> reads the current GPIO output state, and writing it sets the GPIOs to
> the explicit state. This is the behaviour that we want when saving and
> restoring the context, so use the dataout register exclusively.
>
> Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>

Patch applied.

Yours,
Linus Walleij