linux-kernel - Re: [PATCH] ARM: dts: imx6*-apalis/-colibri: mark I2C recovery GPIOs as open drain

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Message-ID: <20190122053220.GE19233@dragon>
Date:   Tue, 22 Jan 2019 13:32:21 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Stefan Agner <stefan@...er.ch>
Cc:     s.hauer@...gutronix.de, max.krummenacher@...adex.com,
        marcel.ziswiler@...adex.com, dev@...henker.ch,
        kernel@...gutronix.de, fabio.estevam@....com, linux-imx@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: imx6*-apalis/-colibri: mark I2C recovery GPIOs
 as open drain

On Fri, Jan 18, 2019 at 02:31:13PM +0100, Stefan Agner wrote:
> Since commit d2d0ad2aec4a ("i2c: imx: use open drain for recovery
> GPIO") GPIO lib expects this GPIO to be configured as open drain.
> Make sure we define this GPIO as open drain in the device tree.
> This gets rid of the following warning:
>   gpio-81 (scl): enforced open drain please flag it properly in DT/ACPI DSDT/board file
> 
> Note that currently the i.MX pinctrl driver does not support
> enabling open drain directly, so this patch has no effect in
> practice. Open drain is enabled by the fixed pinmux entry.
> 
> Signed-off-by: Stefan Agner <stefan@...er.ch>

Applied, thanks.