linux-kernel - Re: [PATCH] ARM: dts: imx6qdl-udoo: disable AC'97 input pins pad drivers

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Message-ID: <20171129031107.GC9376@dragon>
Date:   Wed, 29 Nov 2017 11:11:08 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>
Cc:     Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        devicetree@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ARM: dts: imx6qdl-udoo: disable AC'97 input pins pad
 drivers

On Mon, Nov 20, 2017 at 08:08:30PM +0100, Maciej S. Szmigiero wrote:
> AC'97 interface RXD and TXC pins are only used as SoC inputs, let's disable
> pad drivers for them so we will be protected if, for example, TCLKDIR is
> set by mistake in AUDMUX and causes TXC pin to be configured as an output.
> 
> This also changes pull direction on these pins from pull-up to pull-down
> to match what the board AC'97 CODEC chip (VT1613) has on these pins.
> 
> Signed-off-by: Maciej S. Szmigiero <mail@...iej.szmigiero.name>

Applied, thanks.