linux-kernel - Dropping device tree pinmux nodes for GPIO usage (Was: [PATCH 3/5] arm64: dts: sun50i: add MMC nodes)

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Message-ID: <20170115155931.l5tjcdhbz6sj3wke@localhost>
Date:   Sun, 15 Jan 2017 16:59:32 +0100
From:   Rask Ingemann Lambertsen <rask@...melder.dk>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Andre Przywara <andre.przywara@....com>,
        Mark Rutland <mark.rutland@....com>,
        devicetree <devicetree@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Hans De Goede <hdegoede@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Icenowy Zheng <icenowy@...c.xyz>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Dropping device tree pinmux nodes for GPIO usage (Was: [PATCH 3/5]
 arm64: dts: sun50i: add MMC nodes)

On Tue, Jan 03, 2017 at 10:52:12AM +0800, Chen-Yu Tsai wrote:
> On Tue, Jan 3, 2017 at 7:03 AM, Andre Przywara <andre.przywara@....com> wrote:
> > +
> > +                       mmc0_default_cd_pin: mmc0_cd_pin@0 {
> > +                               pins = "PF6";
> > +                               function = "gpio_in";
> > +                               bias-pull-up;
> > +                       };
> 
> We are starting to drop pinmux nodes for gpio usage.

How do we get the equivalent of bias-pull-up/down and drive-strength if we
run across a pin that needs it?

-- 
Rask Ingemann Lambertsen