On 8/2/23 10:52, 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 <ma...@denx.de>
Cc: Robert Foss <rf...@kernel.org>
Cc: Jagan Teki <ja...@amarulasolutions.com>
Cc: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Cc: Abhinav Kumar <quic_abhin...@quicinc.com>
Fixes: 8ddce13ae69 ("drm/bridge: lt9611: Do not generate HFP/HBP/HSA and EOT
packet")
Reported-by: Amit Pundir <amit.pun...@linaro.org>
Link:
https://lore.kernel.org/r/CAMi1Hd0TD=2z_=bcdrht3h_wilvafcv8z-u_r_kuooemc6u...@mail.gmail.com/
Signed-off-by: Neil Armstrong <neil.armstr...@linaro.org>
This breaks LT9611 operation on i.MX8M Mini/Nano/Plus, so, NAK.
I am currently using this LT9611 with Linux 6.1.y in production and this
is not acceptable. I also believe the correct fix is on the MSM side,
not on the LT9611 driver side, since MSM incorrectly implements these flags.
