linux-kernel - Re: [PATCH] gpio-backlight: Discover driver during boot time

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Date:	Wed, 29 Apr 2015 13:32:23 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Arun Bharadwaj <arun@...stix.com>
Cc:	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jingoo Han <jg1.han@...sung.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Ash Charles <ashcharles@...il.com>
Subject: Re: [PATCH] gpio-backlight: Discover driver during boot time

Jingoo?

> The gpio-backlight driver seems to be missing the
> MODULE_DEVICE_TABLE line which is preventing it from
> being modprobed during boot time even if the
> gpio-backlight device exists.
> 
> This seems to be a bug and this patch attempts to
> fix that.
> 
> Signed-off-by: Arun Bharadwaj <arun@...stix.com>
> Signed-off-by: Ash Charles <ashcharles@...il.com>
> ---
>  drivers/video/backlight/gpio_backlight.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
> index 439feb2..5fbbc2e 100644
> --- a/drivers/video/backlight/gpio_backlight.c
> +++ b/drivers/video/backlight/gpio_backlight.c
> @@ -146,6 +146,8 @@ static struct of_device_id gpio_backlight_of_match[] = {
>  	{ .compatible = "gpio-backlight" },
>  	{ /* sentinel */ }
>  };
> +
> +MODULE_DEVICE_TABLE(of, gpio_backlight_of_match);
>  #endif
>  
>  static struct platform_driver gpio_backlight_driver = {

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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