linux-kernel - Re: [PATCH 1/2] gpio: ath79: Fix module autoload

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Message-ID: <20161019191022.7079044b@tock>
Date:   Wed, 19 Oct 2016 19:10:22 +0200
From:   Alban <albeu@...e.fr>
To:     Javier Martinez Canillas <javier@....samsung.com>
Cc:     Aban Bedel <albeu@...e.fr>, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>
Subject: Re: [PATCH 1/2] gpio: ath79: Fix module autoload

On Tue, 18 Oct 2016 17:44:01 -0300
Javier Martinez Canillas <javier@....samsung.com> wrote:

> If the driver is built as a module, autoload won't work because the module
> alias information is not filled. So user-space can't match the registered
> device with the corresponding module.
> 
> Export the module alias information using the MODULE_DEVICE_TABLE() macro.
> 
> Before this patch:
> 
> $ modinfo drivers/gpio/gpio-ath79.ko | grep alias
> $
> 
> After this patch:
> 
> $ modinfo drivers/gpio/gpio-ath79.ko | grep alias
> alias:          of:N*T*Cqca,ar9340-gpioC*
> alias:          of:N*T*Cqca,ar9340-gpio
> alias:          of:N*T*Cqca,ar7100-gpioC*
> alias:          of:N*T*Cqca,ar7100-gpio
> 
> Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>

Acked-by: Aban Bedel <albeu@...e.fr>

Alban

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