linux-kernel - Re: [PATCH 03/14] mmc: mmci: Add support for setting pad type via pinctrl

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Date:   Mon, 15 Jan 2018 02:07:24 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Patrice CHOTARD <patrice.chotard@...com>
Cc:     Russell King <linux@...linux.org.uk>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-gpio@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Andrea Merello <andrea.merello@...il.com>
Subject: Re: [PATCH 03/14] mmc: mmci: Add support for setting pad type via pinctrl

On Fri, Jan 12, 2018 at 1:15 PM,  <patrice.chotard@...com> wrote:

> From: Patrice Chotard <patrice.chotard@...com>
>
> The STM32 variant hasn't the control bit to switch pads in opendrain mode.
> In this case we can achieve the same result by asking to the pinmux driver
> to configure pins for us.
>
> This patch make the mmci driver able to do this whenever needed.
>
> Signed-off-by: Andrea Merello <andrea.merello@...il.com>
> Signed-off-by: Patrice Chotard <patrice.chotard@...com>

Nice and clean way to use pin control for this.
Hats off!

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij