kernel/linux.git/drivers/gpu/drm/amd/display/modules, branch v6.6.12

drm/amd/display: Fix sending VSC (+ colorimetry) packets for DP/eDP displays without PSR

2024-01-10T16:17:01+00:00

commit 202260f64519e591b5cd99626e441b6559f571a3 upstream. The check for sending the vsc infopacket to the display was gated behind PSR (Panel Self Refresh) being enabled. The vsc infopacket also contains the colorimetry (specifically the container color gamut) information for the stream on modern DP. PSR is typically only supported on mobile phone eDP displays, thus this was not getting sent for typical desktop monitors or TV screens. This functionality is needed for proper HDR10 functionality on DP as it wants BT2020 RGB/YCbCr for the container color space. Cc: stable@vger.kernel.org Cc: Harry Wentland Cc: Xaver Hugl Cc: Melissa Wen Fixes: 15f9dfd545a1 ("drm/amd/display: Register Colorspace property for DP and HDMI") Tested-by: Simon Berz Tested-by: Xaver Hugl Signed-off-by: Joshua Ashton Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Disable PSR-SU on Parade 0803 TCON again

2023-12-20T16:02:04+00:00

commit e7ab758741672acb21c5d841a9f0309d30e48a06 upstream. When screen brightness is rapidly changed and PSR-SU is enabled the display hangs on panels with this TCON even on the latest DCN 3.1.4 microcode (0x8002a81 at this time). This was disabled previously as commit 072030b17830 ("drm/amd: Disable PSR-SU on Parade 0803 TCON") but reverted as commit 1e66a17ce546 ("Revert "drm/amd: Disable PSR-SU on Parade 0803 TCON"") in favor of testing for a new enough microcode (commit cd2e31a9ab93 ("drm/amd/display: Set minimum requirement for using PSR-SU on Phoenix")). As hangs are still happening specifically with this TCON, disable PSR-SU again for it until it can be root caused. Cc: stable@vger.kernel.org Cc: aaron.ma@canonical.com Cc: binli@gnome.org Cc: Marc Rossi Cc: Hamza Mahfooz Signed-off-by: Mario Limonciello Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2046131 Acked-by: Alex Deucher Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: prevent potential division by zero errors

2023-09-07T02:10:11+00:00

There are two places in apply_below_the_range() where it's possible for a divide by zero error to occur. So, to fix this make sure the divisor is non-zero before attempting the computation in both cases. Cc: stable@vger.kernel.org Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2637 Fixes: a463b263032f ("drm/amd/display: Fix frames_to_insert math") Fixes: ded6119e825a ("drm/amd/display: Reinstate LFC optimization") Reviewed-by: Aurabindo Pillai Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: Update adaptive sync infopackets for replay

2023-08-15T22:08:30+00:00

Update infopackets for replay Signed-off-by: Bhawanpreet Lakha Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Clean up errors in color_gamma.c

2023-08-09T13:42:47+00:00

Fix the following errors reported by checkpatch: ERROR: trailing whitespace ERROR: else should follow close brace '}' Signed-off-by: Ran Sun Signed-off-by: Alex Deucher

drm/amd/display: Add Freesync Panel DM code

2023-08-07T21:14:07+00:00

We need certain conditions for replay to be enabled, so create an interface in DM to enable/disable replay. Signed-off-by: Bhawanpreet Lakha Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Limit Minimum FreeSync Refresh Rate

2023-06-15T14:44:49+00:00

Why: Some EDIDs report a minimum refresh rate lower than what HW can support How: Add a check to calculate minimum supported refresh rate with current timing and use that as the minimum if a lower one is passed in Acked-by: Stylon Wang Signed-off-by: Austin Zheng Reviewed-by: Anthony Koo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: set variable custom_backlight_curve0 storage-class-specifier to static

2023-06-09T13:23:18+00:00

smatch reports drivers/gpu/drm/amd/amdgpu/../display/modules/power/power_helpers.c:119:31: warning: symbol 'custom_backlight_curve0' was not declared. Should it be static? This variable is only used in its defining file, so it should be static Signed-off-by: Tom Rix Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher

drm/amd/display: add option to use custom backlight caps

2023-04-24T22:36:46+00:00

[Why & How] Provide option for vendors to specify a custom brightness-to-backlight conversion profile. Tested-by: Daniel Wheeler Reviewed-by: Anthony Koo Acked-by: Rodrigo Siqueira Signed-off-by: Josip Pavic Signed-off-by: Alex Deucher

drm/amd/display: remove unused variable oldest_index

2023-04-18T20:28:54+00:00

cpp_check reports drivers/gpu/drm/amd/display/modules/freesync/freesync.c:1143:17: style: Variable 'oldest_index' is assigned a value that is never used. [unreadVariable] oldest_index = 0; ^ This variable is not used so remove. Signed-off-by: Tom Rix Signed-off-by: Alex Deucher