linux-kernel - Re: [PATCH 2/4] gpio: stp-xway: improve module clock error handling

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Date:   Thu, 4 Jul 2019 09:40:24 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     John Crispin <blogic@...nwrt.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        dev@...sin.me,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/4] gpio: stp-xway: improve module clock error handling

On Wed, Jul 3, 2019 at 12:33 AM Martin Blumenstingl
<martin.blumenstingl@...glemail.com> wrote:

> Three module clock error handling improvements:
> - use devm_clk_get() so the clock instance can be freed if
>   devm_gpiochip_add_data() fails later on
> - switch to clk_prepare_enable() so the driver is ready whenever the
>   lantiq target switches to the common clock framework
> - disable the clock again (using clk_disable_unprepare()) if
>   devm_gpiochip_add_data()
>
> All of these are virtually no-ops with the current lantiq target.
> However, these will be relevant if we switch to the common clock
> framework.
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

Patch applied.

Yours,
Linus Walleij