linux-kernel - Re: [PATCH] serial: imx: Avoid probe failure in case of missing gpiolib

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Date:   Thu, 1 Aug 2019 10:48:27 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Schrempf Frieder <frieder.schrempf@...tron.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        Jiri Slaby <jslaby@...e.com>
Subject: Re: [PATCH] serial: imx: Avoid probe failure in case of missing
 gpiolib

On Thu, Aug 01, 2019 at 08:18:05AM +0000, Schrempf Frieder wrote:
> From: Frieder Schrempf <frieder.schrempf@...tron.de>
> 
> If CONFIG_GPIOLIB is not enabled, mctrl_gpio_init() will return
> -ENOSYS and cause the probing of the imx UART to fail. As the
> GPIOs are optional, we should continue probing in this case.

Is this really still the case? On which version did you hit this
problem?

I would expect that is gone with
d99482673f950817b30caf3fcdfb31179b050ce1 if not earlier.

Best regards
Uwe

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