[PATCH 2/3] drm/exynos: fimd: add HW trigger support

[Javier Martinez Canillas]

Hello Inki,

On 06/01/2016 01:56 AM, Inki Dae wrote:
> Hi Javier,
> 
> 2016년 05월 31일 07:58에 Javier Martinez Canillas 이(가) 쓴 글:
>> Hello Inki,
>>
>> On 04/05/2016 04:27 AM, Inki Dae wrote:
>>> This patch adds HW trigger support on i80 mode.
>>>
>>> Until now, Exynos DRM only supported SW trigger which was set
>>> SWTRGCMD bit of TRIGCON register by CPU to transfer scanout
>>> buffer to Display bus device or panel.
>>>
>>> With this patch, the transmission to Display bus device or
>>> panel will be initiated by FIMD controller.
>>>
>>> Signed-off-by: Inki Dae <inki.dae at samsung.com>
>>> ---
>>
>> There is a regression for the Exynos5800 Peach Pi Chromebook display due
>> this patch. The display is blank and I noticed that it only happens when
>> HW start trigger is enabled, but works with SW trigger (as it was before).
> 
> Posted below pathch,
> [PATCH] drm/exynos: fimd: fix trigger mode change regression
>

Thanks, I noticed you forgot to cc me on that one though.
 
> Can you test it again with the patch? I have no HW to test it. :(
>

I gave a try to your patch but unfortunately it doesn't solve the issue
on the Peach Pi. I'll try to dig further on this.
 
> Thanks,
> Inki Dae
> 

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America