linux-kernel - Re: [PATCH 2/7] pinctrl: samsung: Ensure that pad retention is disabled on driver init

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Date:   Wed, 25 Jan 2017 19:38:43 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
Cc:     linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH 2/7] pinctrl: samsung: Ensure that pad retention is
 disabled on driver init

On Wed, Jan 25, 2017 at 12:50:26PM +0100, Marek Szyprowski wrote:
> When pin controller device is a part of power domain, there is no guarantee
> that the power domain was not turned off and then on during boot process
> before probing of the pin control driver. If it happened, then pin control
> driver should ensure that pad retention is turned off during its probe call.
> 
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> ---
>  drivers/pinctrl/samsung/pinctrl-exynos.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 

Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>

Best regards,
Krzysztof