linux-dev/drivers/gpu/drm/amd/display/dc/dcn314, branch master

drm/amd/display: Fix reg timeout in enc314_enable_fifo

2022-11-09T23:01:59Z

[Why] The link enablement sequence can end up resetting the encoder while the PHY symclk isn't yet on. This means that waiting for symclk on will timeout, along with the reset bit never asserting high. This causes unnecessary delay when enabling the link and produces a warning affecting multiple IGT tests. [How] Don't wait for the symclk to be on here because firmware already does. Don't wait for reset if we know the symclk isn't on. Split the reset into a helper function that checks the bit and decides whether or not a delay is sufficient. Reviewed-by: Roman Li Acked-by: Alan Liu Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org # 6.0.x

drm/amd/display: Update DSC capabilitie for DCN314

2022-11-02T20:45:42Z

dcn314 has 4 DSC - conflicted hardware document updated and confirmed. Tested-by: Mark Broadworth Reviewed-by: Charlene Liu Acked-by: Rodrigo Siqueira Signed-off-by: Leo Chen Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org # 6.0.x

drm/amd/display: Update PMFW z-state interface for DCN314

2022-10-10T21:11:41Z

[Why] Request from PMFW to change the messaging format to specify whether we support z-state via individual bits. [How] Update the args we pass in the support message. Fixes: d5c6909e7460 ("drm/amd/display: Add DCN314 clock manager") Tested-by: Daniel Wheeler Reviewed-by: Charlene Liu Reviewed-by: Mario Limonciello Acked-by: Qingqing Zhuo Signed-off-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org # 6.0

drm/amd/display: Refactor edp ILR caps codes

2022-10-06T16:00:02Z

We split out ILR config from "global" to "per-panel" config settings. Reviewed-by: Anthony Koo Acked-by: Hamza Mahfooz Signed-off-by: Ian Chen Signed-off-by: Alex Deucher

drm/amd/display: change to enc314_stream_encoder_dp_blank static

2022-10-06T15:55:36Z

enc314_stream_encoder_dp_blank is only used in dcn314_dio_stream_encoder.c now, change it to static. Fixes: c55bf690fe79 ("drm/amd/display: Add explicit FIFO disable for DP blank") Signed-off-by: Yang Yingliang Signed-off-by: Alex Deucher

drm/amd/display: Fix typo in get_pixel_rate_div

2022-09-29T13:41:45Z

[Why & How] Some FIFO errors still occur due to reading wrong pixel rate divider. Fix typo to prevent FIFO error. Reviewed-by: Nicholas Kazlauskas Acked-by: Jasdeep Dhillon Signed-off-by: Taimur Hassan Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add explicit FIFO disable for DP blank

2022-09-29T13:41:44Z

[Why] We rely on DMCUB to do this when disabling the link but it should actually come before we disable the DP VID stream. If we don't then the FIFO can end up with underflow that persists the next time it's enabled. [How] Add a DCN314 specific blank sequence that will disable the DIG FIFO first. Reviewed-by: Syed Hassan Acked-by: Jasdeep Dhillon Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Do DIO FIFO enable after DP video stream enable

2022-09-29T13:41:44Z

[Why] Avoids a race condition where DIO FIFO can underflow due to no incoming data available. [How] Shift the FIFO enable below stream enable. Make sure fullness level is written before the DIO reset takes place and that we're not doing it twice. Reviewed-by: Syed Hassan Acked-by: Jasdeep Dhillon Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Avoid avoid unnecessary pixel rate divider programming

2022-09-29T13:41:44Z

[Why] Programming pixel rate divider when FIFO is enabled can cause FIFO error. [How] Skip divider programming when divider values are the same to prevent FIFO error. Reviewed-by: Nicholas Kazlauskas Acked-by: Jasdeep Dhillon Signed-off-by: Taimur Hassan Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: correct num_dsc based on HW cap

2022-09-19T19:17:03Z

[why] num_dsc is 3 for dcn314 based on HW capablity. Reviewed-by: Martin Leung Acked-by: Wayne Lin Signed-off-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher