linux-kernel - Re: [PATCH] drm/rockchip: Fix module autoload for OF platform driver

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Message-ID: <565E41E4.4060606@rock-chips.com>
Date:	Wed, 02 Dec 2015 08:57:08 +0800
From:	Mark yao <mark.yao@...k-chips.com>
To:	Luis de Bethencourt <luisbg@....samsung.com>,
	linux-kernel@...r.kernel.org
CC:	airlied@...ux.ie, heiko@...ech.de, dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, akpm@...ux-foundation.org
Subject: Re: [PATCH] drm/rockchip: Fix module autoload for OF platform driver

On 2015年11月30日 22:56, Luis de Bethencourt wrote:
> This platform driver has a OF device ID table but the OF module
> alias information is not created so module autoloading won't work.
>
> Signed-off-by: Luis de Bethencourt <luisbg@....samsung.com>
> ---
>
> Hi,
>
> This is a Resend of a patch from October 20th [0]
>
> I am adding Andrew Morton to the CC list as was recommended at the Korea Linux
> Forum.
>
> This patch adds the missing MODULE_DEVICE_TABLE() for OF to export
> that information so modules have the correct aliases built-in and
> autoloading works correctly.
>
> A longer explanation by Javier Canillas can be found here:
> https://lkml.org/lkml/2015/7/30/519
> A multitude of similar patches have been merged for other drivers, search
> the git log for "module autoload for OF platform driver".
>
> Thanks,
> Luis
>
> [0] https://lkml.org/lkml/2015/10/20/485
>
>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 5d8ae5e..5897851 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -374,6 +374,7 @@ static const struct of_device_id vop_driver_dt_match[] = {
>   	  .data = &rk3288_vop },
>   	{},
>   };
> +MODULE_DEVICE_TABLE(of, vop_driver_dt_match);
>   
>   static inline void vop_writel(struct vop *vop, uint32_t offset, uint32_t v)
>   {
Applied to my drm-fixes, Thanks for this fix.

-- 
Ｍark Yao


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