Re: [PATCH v4 24/24] drm/exynos: dsi: Adjust probe order

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

On 13.09.2021 12:30, Andrzej Hajda wrote:
> W dniu 10.09.2021 o 12:12, Maxime Ripard pisze:
>> Without proper care and an agreement between how DSI hosts and devices
>> drivers register their MIPI-DSI entities and potential components, we can
>> end up in a situation where the drivers can never probe.
>>
>> Most drivers were taking evasive maneuvers to try to workaround this,
>> but not all of them were following the same conventions, resulting in
>> various incompatibilities between DSI hosts and devices.
>>
>> Now that we have a sequence agreed upon and documented, let's convert
>> exynos to it.
>>
>> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
> This patch should be dropped, as it will probably break the driver.
>
> Exynos is already compatible with the pattern
> register-bus-then-get-sink, but it adds/removes panel/bridge
> dynamically, so it creates drm_device without waiting for downstream sink.

Right, this patch breaks Exynos DSI driver operation. Without it, the 
whole series works fine on all Exynos based test boards.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland




[Index of Archives]     [Linux SoC Development]     [Linux Rockchip Development]     [Linux for Synopsys ARC Processors]    
  • [Linux on Unisoc (RDA Micro) SoCs]     [Linux Actions SoC]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Linux SCSI]     [Yosemite News]

  •   Powered by Linux