linux/drivers/gpu/drm/amd/display/modules, branch v6.3

drm/amd/display: fix a divided-by-zero error

2023-04-18T21:20:00Z

[Why & How] timing.dsc_cfg.num_slices_v can be zero and it is necessary to check before using it. This fixes the error "divide error: 0000 [#1] PREEMPT SMP NOPTI". Reviewed-by: Aurabindo Pillai Acked-by: Qingqing Zhuo Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amd/display: remove unused _calculate_degamma_curve function

2023-02-16T03:24:26Z

We don't use this function anywhere, therefore, remove it. Reviewed-by: Christian König Signed-off-by: Melissa Wen Signed-off-by: Alex Deucher

drm/amd/display: unset initial value for tf since it's never used

2023-02-16T03:24:20Z

In mod_color_calculate_{degamma/regamma}_params(), a tf variable is initialized as TRANSFER_FUNCTION_SRGB but tf is only used after tf = input->tf, therefore, better to just remove this initial value and avoid misleading interpretations. Reviewed-by: Christian König Signed-off-by: Melissa Wen Signed-off-by: Alex Deucher

drm/amd/display: camel case cleanup in color_gamma file

2023-02-16T03:24:15Z

Rename mapUserRamp to map_user_ramp and doClamping to do_clamping Reviewed-by: Christian König Signed-off-by: Melissa Wen Signed-off-by: Alex Deucher

drm/amd/display: Fix FreeSync active bit issue

2023-02-14T21:06:10Z

[Why] The FreeSync active bit unconditionally set in HDMI VSIF. [How] Set this bit to true when FAMS is enable on desktop. Reviewed-by: Felipe Clark Acked-by: Qingqing Zhuo Signed-off-by: Leo (Hanghong) Ma Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Enable Freesync over PCon

2023-01-31T19:00:44Z

[why] Enable Freesync over PCon on Linux environment. [how] Adding Freesync over PCon support in amdgpu_dm - Read DPCD for Freesync over PCon capabilitiy - Add whitelist for compatible branch devices Reviewed-by: Chao-kai Wang Acked-by: Alex Hung Signed-off-by: Sung Joon Kim Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Pass DSC slice height to PSR FW

2023-01-24T18:26:25Z

[Why] When DSC is enabled, the PSRSU seletive update region must be multiple number of DSC slice height number. The original solution is to overwrite the SU Y granularity by DSC slice height in DAL driver. However, the size of the SU Y granularity variable only has 8 bytes and the DSC slice height may over the 8 bytes size. [How] Instead of overwriting the SU Y granularity value, add a new DSC slice height pararmeter and pass it to DMUB PSRSU FW. The PSRSU FW will refer to the DSC slice height value and extend the SU region. Reviewed-by: Dennis Chan Reviewed-by: ChunTao Tso Acked-by: Alan Liu Signed-off-by: Robin Chen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Enable AdaptiveSync in DC interface

2023-01-24T18:26:25Z

[why] Start enabling AdaptiveSync feature on Linux environment. [how] Adding AdaptiveSync support in DC layer - building AdaptiveSync info_packets - adjusting the v_startup parameter Reviewed-by: Harry Wentland Reviewed-by: Anthony Koo Acked-by: Alan Liu Signed-off-by: Sung Joon Kim Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: set active bit for desktop with VSDBv3

2023-01-17T20:39:58Z

When using freesync on desktop, need to set freesync active bit for AMD VSDBv3 infopacket. Tested-by: Daniel Wheeler Reviewed-by: Martin Leung Acked-by: Rodrigo Siqueira Signed-off-by: Dillon Varone Signed-off-by: Alex Deucher

drm/amd/display: Remove unused code

2023-01-17T20:39:50Z

Remove some code that is never used from freesync file. Tested-by: Daniel Wheeler Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher