linux-kernel - Re: [PATCH 1/2] ARM: dts: rockchip: Add pin names for rk3288-veyron-minnie

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Date:   Wed, 22 May 2019 10:01:39 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     briannorris@...omium.org, ryandcase@...omium.org, mka@...omium.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] ARM: dts: rockchip: Add pin names for rk3288-veyron-minnie

Am Dienstag, 21. Mai 2019, 22:32:14 CEST schrieb Douglas Anderson:
> We can now use the "gpio-line-names" property to provide the names for
> all the pins on a board.  Let's use this to provide the names for all
> the pins on rk3288-veyron-minnie.
> 
> In general the names here come straight from the schematic.  That
> means even if the schematic name is weird / doesn't have consistent
> naming conventions / has typos I still haven't made any changes.
> 
> The exception here is for two pins: the recovery switch and the write
> protect detection pin.  These two pins need to have standardized names
> since crossystem (a Chrome OS tool) uses these names to query the
> pins.  In downstream kernels crossystem used an out-of-tree driver to
> do this but it has now been moved to the gpiod API and needs the
> standardized names.
> 
> It's expected that other rk3288-veyron boards will get similar patches
> shortly.
> 
> NOTE: I have sorted the "gpio" section to be next to the "pinctrl"
> section since it seems to logically make the most sense there.
> 
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

applied both for 5.3 ... that is actually a pretty nifty feature for
boards whose schematics cannot be published :-)