linux-kernel - Re: [PATCH] arm64: dts: allwinner: pine64: Prepare optional UART nodes with pinctrl

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Date:   Wed, 19 Apr 2017 16:52:29 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Andreas Färber <afaerber@...e.de>
Cc:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: allwinner: pine64: Prepare optional UART
 nodes with pinctrl

On Tue, Apr 18, 2017 at 09:25:38PM +0200, Andreas Färber wrote:
> Pine64 exposes all A64 UARTs, not just UART0.
> 
> Since the pins can be used as GPIO, don't enable the new UART nodes by
> default, but prepare the pinctrl settings to aid in activating them via
> overlays, i.e., overriding the status property of &uartX nodes.
> 
> For UART4 (Euler) the safer route of not including RTS/CTS pins is chosen,
> whereas for UART1 (Bluetooth) they are included.
> 
> Add the corresponding pinctrl nodes where missing.
> 
> Suggested-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> Signed-off-by: Andreas Färber <afaerber@...e.de>

Applied, thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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