Re: [PATCH] Revert "drm/bridge: lt9611: Do not generate HFP/HBP/HSA and EOT packet"

[Marek Vasut <marex@denx.de>]

On 8/2/23 15:38, Dmitry Baryshkov wrote:
> On 02/08/2023 11:52, Neil Armstrong wrote:
>> This reverts commit [1] to fix display regression on the Dragonboard 845c
>> (SDM845) devboard.
>>
>> There's a mismatch on the real action of the following flags:
>> - MIPI_DSI_MODE_VIDEO_NO_HSA
>> - MIPI_DSI_MODE_VIDEO_NO_HFP
>> - MIPI_DSI_MODE_VIDEO_NO_HBP
>> which leads to a non-working display on qcom platforms.
>>
>> [1] 8ddce13ae696 ("drm/bridge: lt9611: Do not generate HFP/HBP/HSA and 
>> EOT packet")
>>
>> Cc: Marek Vasut <marex@denx.de>
>> Cc: Robert Foss <rfoss@kernel.org>
>> Cc: Jagan Teki <jagan@amarulasolutions.com>
>> Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>> Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
>> Fixes: 8ddce13ae69 ("drm/bridge: lt9611: Do not generate HFP/HBP/HSA 
>> and EOT packet")
>> Reported-by: Amit Pundir <amit.pundir@linaro.org>
>> Link: 
>> https://lore.kernel.org/r/CAMi1Hd0TD=2z_=bcDrht3H_wiLvAFcv8Z-U_r_KUOoeMc6UMjw@mail.gmail.com/
>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>> ---
>>   drivers/gpu/drm/bridge/lontium-lt9611.c | 4 +---
>>   1 file changed, 1 insertion(+), 3 deletions(-)
>>
> Acked-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> #fix db845c
> 
> The boards broken by [1] are used in production by different parties 
> since 5.10, breaking them doesn't seem more acceptable than breaking the 
> new out-of-tree iMX8m hardware.

The MX8M is also in-tree, so this does not apply.