linux-kernel - Re: [PATCH] i2c: imx: defer probe if bus recovery GPIOs are not ready

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Message-ID: <20160927064406.s4p3px774lcm6zhb@pengutronix.de>
Date:   Tue, 27 Sep 2016 08:44:06 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Stefan Agner <stefan@...er.ch>
Cc:     wsa@...-dreams.de, leoyang.li@....com, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: imx: defer probe if bus recovery GPIOs are not ready

Hello Stefan,

On Mon, Sep 26, 2016 at 05:18:58PM -0700, Stefan Agner wrote:
> Some SoC might load the GPIO driver after the I2C driver and
> using the I2C bus recovery mechanism via GPIOs. In this case
> it is crucial to defer probing if the GPIO request functions
> do so, otherwise the I2C driver gets loaded without recovery
> mechanisms enabled.
> 
> Signed-off-by: Stefan Agner <stefan@...er.ch>
Acked-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Thanks
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |