kernel/linux.git/drivers/gpu/drm/amd/display/dc/dce, branch v5.16.1

drm/amd/display: Added HPO HW control shutdown support

2021-11-03T16:32:34+00:00

[Why] HPO is only used for DP2.0. HPO HW control should be disable when not being used to save power. [How] Shutdown HPO HW control during init hw. Shutdown HPO HW control during stream disable. Enable HPO HW control during stream enable if DP2.0. Acked-by: Aurabindo Pillai Signed-off-by: Jake Wang Reviewed-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: set Layout properly for 8ch audio at timing validation

2021-10-28T18:26:16+00:00

Why: For audio packet type 0x02, there are 2 Layouts: Layout = 0 for 2 channels and Layout = 1 for > 2 channels. Layout will affect bandwidth check. Currently, for HDMI FRL, Layout field isn't set and has a default value of 0, so theoretically only 2-channel audio for audio packet type 0x02 is supported now. How: 1. Set Layout properly according to maximum audio channel numbers for audios with audio packet type 0x02. 2. 8ch LPCM audio is not supported for timing modes with v_active <= 576. Reviewed-by: Chris Park Tested-by: Daniel Wheeler Acked-by: Agustin Gutierrez Signed-off-by: Bing Guo Signed-off-by: Alex Deucher

drm/amd/display: Handle I2C-over-AUX write channel status update

2021-10-28T18:26:15+00:00

[Why] When writing long AUX commands some sinks will respond will write status update requiring source to read status. [How] When a write request is replied with data (AUX_ACK_M), retry a read of write status to determine when the write is completed. Reviewed-by: Martin Leung Tested-by: Daniel Wheeler Acked-by: Agustin Gutierrez Signed-off-by: Aric Cyr Signed-off-by: Alex Deucher

drm/amd/display: Set i2c memory to light sleep during hw init

2021-10-28T18:26:14+00:00

[WHY] i2c memory doesn't get set to light sleep on hw init as intended [HOW] Set i2c to light sleep after reg gets zeroed, ensuring memory power control doesn't get disabled for any other DIO memory Reviewed-by: Haonan Wang Tested-by: Daniel Wheeler Acked-by: Agustin Gutierrez Signed-off-by: Michael Strauss Signed-off-by: Alex Deucher

drm/amd/display: dc_link_set_psr_allow_active refactoring

2021-10-28T18:26:14+00:00

[Why] To expose new power optimization flags to PSR interface. It allows the PSR related power features can be enabled separately base on different use scenarios. Reviewed-by: Anthony Koo Acked-by: Agustin Gutierrez Tested-by: Daniel Wheeler Signed-off-by: Robin Chen Signed-off-by: Alex Deucher

drm/amd/display: Add missing PSR state

2021-10-19T21:19:16+00:00

[why] PSR_STATE2b was introduced on DMCUB side, but not on the driver side, which caused convert_psr_state helper function to return PSR_STATE_INVALID. That caused visual lagging during state transition. [how] Add PSR_STATE2b to dc_psr_state and convert_psr_state Reviewed-by: Wyatt Wood Acked-by: Agustin Gutierrez Sanchez Signed-off-by: Mikita Lipski Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix for access for ddc pin and aux engine.

2021-10-06T19:52:48+00:00

[Why & How] 1. Remove unnecessary dummy interrupt source for USB4 HPD & HPD RX 2. Adjust parameter for DPCD writing of link training process of DPIA link 3. Adjust specific AUX defer delay for DPIA link Reviewed-by: Jimmy Kizito Acked-by: Wayne Lin Acked-by: Nicholas Kazlauskas Acked-by: Harry Wentland Signed-off-by: Meenakshikumar Somasundaram Signed-off-by: Alex Deucher

drm/amd/display: add cyan_skillfish display support

2021-10-04T19:22:57+00:00

[Why] add display related cyan_skillfish files in. makefile controlled by CONFIG_DRM_AMD_DC_DCN201 flag. v2: squash in clang fixes from Harry, Nathan v3: squash in missing CONFIG_DRM_AMD_DC check (Alex) Signed-off-by: Charlene Liu Signed-off-by: Zhan Liu Reviewed-by: Charlene Liu Acked-by: Jun Lei Acked-by: Harry Wentland Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amd/display: add vsync notify to dmub for abm pause

2021-09-28T13:30:09+00:00

[Why] To prevent unnecessary wake up of DMCUB when ABM is enabled without PSR enabled, driver will notify DMCUB to stop ABM's vertical interrupts if vsync is disabled and steady state is reached. [How] Send inbox message to notify ABM pause based on vsync on/off Reviewed-by: Nicholas Kazlauskas Acked-by: Anson Jacob Signed-off-by: Eric Yang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: fix empty debug macros

2021-09-23T19:17:29+00:00

Using an empty macro expansion as a conditional expression produces a W=1 warning: drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c: In function 'dce_aux_transfer_with_retries': drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c:775:156: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 775 | "dce_aux_transfer_with_retries: AUX_RET_SUCCESS: AUX_TRANSACTION_REPLY_I2C_OVER_AUX_DEFER"); | ^ drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_aux.c:783:155: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 783 | "dce_aux_transfer_with_retries: AUX_RET_SUCCESS: AUX_TRANSACTION_REPLY_I2C_OVER_AUX_NACK"); | ^ Expand it to "do { } while (0)" instead to make the expression more robust and avoid the warning. Fixes: 56aca2309301 ("drm/amd/display: Add AUX I2C tracing.") Signed-off-by: Arnd Bergmann Signed-off-by: Alex Deucher