linux-kernel - Re: [PATCH 0/6] drm/fsl-dcu: unload fixes

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Date:	Mon, 25 Apr 2016 20:27:26 -0700
From:	Stefan Agner <stefan@...er.ch>
To:	dri-devel@...ts.freedesktop.org, stefan@...er.ch
Cc:	alison.wang@...escale.com, airlied@...ux.ie,
	jianwei.wang.chn@...il.com, meng.yi@....com,
	alexander.stein@...tec-electronic.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] drm/fsl-dcu: unload fixes

Applied patchset to my fsl-dcu tree.

--
Stefan

On 2016-04-16 22:25, Stefan Agner wrote:
> Hi all,
> 
> This patchset fixes several issues around unloading/unbinding
> the driver. There is still one WARNING when unloading the driver
> while vblank interrupts are enabled. I am not sure what/who
> should make sure that vblank interrupts get disabled before
> unloading the driver:
> 
> root@...ibri-vf:~# echo 40058000.dcu > /sys/bus/platform/drivers/fsl-dcu/unbind
> [   37.209656] Console: switching to colour dummy device 80x30
> [   37.224954] ------------[ cut here ]------------
> [   37.245375] WARNING: CPU: 0 PID: 170 at
> drivers/gpu/drm/drm_irq.c:380 drm_vblank_cleanup+0x5c/0x8c
> ...
> 
> Hints welcome...
> 
> Stefan Agner (6):
>   drm/fsl-dcu: detach panel on destroy
>   drm/fsl-dcu: handle missing panel gracefully
>   drm/fsl-dcu: use variable name dev for struct drm_device
>   drm/fsl-dcu: deallocate fbdev CMA on unload
>   drm/fsl-dcu: disable output polling on driver unload
>   drm/fsl-dcu: implement lastclose callback
> 
>  drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 50 +++++++++++++++++++++----------
>  drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 23 +++++++++-----
>  2 files changed, 50 insertions(+), 23 deletions(-)