linux/drivers/gpu/drm/amd/display/modules, branch v6.14

drm/amd/display: Revised for Replay Pseudo vblank control

2025-01-10T17:11:38Z

[why & how] Revised Replay Full screen video Pseudo vblank control. Reviewed-by: Allen Li Signed-off-by: Dennis Chan Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add replay desync error count tracking and reset functionality

2025-01-10T16:59:37Z

[Why & How] Build-up get/reset desync error count interface and implement the functions. Reviewed-by: ChunTao Tso Reviewed-by: Robin Chen Signed-off-by: Jack Chang Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

Revert "drm/amd/display: Revised for Replay Pseudo vblank"

2024-12-10T15:32:39Z

This reverts commit 0f5ac8c8e275 Due to a replay regression. Fixes: 0f5ac8c8e275 ("drm/amd/display: Revised for Replay Pseudo vblank control") Reviewed-by: Dennis Chan Signed-off-by: Gabe Teeger Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Revised for Replay Pseudo vblank control

2024-12-10T15:26:49Z

[why] Revised Replay Full screen video Pseudo vblank control. Reviewed-by: ChunTao Tso Signed-off-by: Dennis Chan Signed-off-by: Fangzhi Zuo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Limit VTotal range to max hw cap minus fp

2024-12-02T23:35:28Z

[WHY & HOW] Hardware does not support the VTotal to be between fp2 lines of the maximum possible VTotal, so add a capability flag to track it and apply where necessary. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Jun Lei Reviewed-by: Anthony Koo Signed-off-by: Dillon Varone Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: fix rxstatus_msg_sz type narrowing

2024-11-04T16:35:15Z

[Why] Code reading rxstatus message size was incorrectly assigning it to uint8_t, despite the value being 10 bits long (lower byte plus lowest 2 bits from upper byte). This caused the highest 2 bits to be ignored, potentially missing invalid values. [How] Change all local variables holding rxstatus message size from uint8_t to uint16_t, as in mod_hdcp_message_hdcp2::rx_id_list_size. Replaced untyped HDCP_2_2_HMID_RXSTATUS_MSG_SZ_HI macro with function hdcp_2_2_hmid_rxstatus_msg_sz(const uint8_t[2]) to encapsulate entire calculation and return a typed result. Removed spaces mixed with tabs to fix indentation on modified lines. Reviewed-by: Wenjing Liu Signed-off-by: Dominik Kaszewski Signed-off-by: Zaeem Mohamed Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: avoid divided by zero

2024-11-04T16:33:40Z

[why] insert divided by zero protection Reviewed-by: Alvin Lee Signed-off-by: Charlene Liu Signed-off-by: Zaeem Mohamed Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Remove unused regamma functions

2024-11-04T16:25:50Z

calculate_user_regamma_coeff() and calculate_user_regamma_ramp() were added in 2018 in commit 55a01d4023ce ("drm/amd/display: Add user_regamma to color module") but never used. Remove them and their helpers. Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Alex Deucher

drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too

2024-10-22T21:50:55Z

Stuart Hayhurst has found that both at bootup and fullscreen VA-API video is leading to black screens for around 1 second and kernel WARNING [1] traces when calling dmub_psr_enable() with Parade 08-01 TCON. These symptoms all go away with PSR-SU disabled for this TCON, so disable it for now while DMUB traces [2] from the failure can be analyzed and the failure state properly root caused. Cc: Marc Rossi Cc: Hamza Mahfooz Link: https://gitlab.freedesktop.org/drm/amd/uploads/a832dd515b571ee171b3e3b566e99a13/dmesg.log [1] Link: https://gitlab.freedesktop.org/drm/amd/uploads/8f13ff3b00963c833e23e68aa8116959/output.log [2] Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2645 Reviewed-by: Leo Li Link: https://lore.kernel.org/r/20240205211233.2601-1-mario.limonciello@amd.com Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amd/display: Display lost signal on playing video

2024-10-07T18:11:49Z

[Why] When Source extend the vblank to reach the minimum panel refresh rate, the vtotal length could have 1 line longer than the maximum supported vtotal. The reason is we optimized the vtotal/refresh-rate calculation to get more accurate vtotal number by rounding the calculation result. But when the target refresh rate is the minimum refresh rate, the vtotal result could be round up and over the maximum supported vtotal. Reviewed-by: Anthony Koo Signed-off-by: po-tchen Signed-off-by: Rodrigo Siqueira Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher