linux-toradex.git/drivers/gpu/drm/amd/display, branch v5.5-rc7

drm/amd/display: Reorder detect_edp_sink_caps before link settings read.

2020-01-15T22:54:54+00:00

read_current_link_settings_on_detect() on eDP 1.4+ may use the
edp_supported_link_rates table which is set up by
detect_edp_sink_caps(), so that function needs to be called first.

Reviewed-by: Harry Wentland 
Signed-off-by: Mario Kleiner 
Cc: Martin Leung 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org

drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded

2020-01-07T16:29:47+00:00

For high-res (8K) or HFR (4K120) displays, using uncompressed pixel
formats like YCbCr444 would exceed the bandwidth of HDMI 2.0, so the
"interesting" modes would be disabled, leaving only low-res or low
framerate modes.

This change lowers the pixel encoding to 4:2:2 or 4:2:0 if the max TMDS
clock is exceeded. Verified that 8K30 and 4K120 are now available and
working with a Samsung Q900R over an HDMI 2.0b link from a Radeon 5700.

Reviewed-by: Harry Wentland 
Signed-off-by: Thomas Anderson 
Signed-off-by: Alex Deucher

drm/amdgpu: fix license on Kconfig and Makefiles

2019-12-11T19:29:38+00:00

amdgpu is MIT licensed.

Fixes: ec8f24b7faaf3d ("treewide: Add SPDX license identifier - Makefile/Kconfig")
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/amd/display: include linux/slab.h where needed

2019-12-10T22:21:50+00:00

Calling kzalloc() and related functions requires the
linux/slab.h header to be included:

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn21/dcn21_resource.c: In function 'dcn21_ipp_create':
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn21/dcn21_resource.c:679:3: error: implicit declaration of function 'kzalloc'; did you mean 'd_alloc'? [-Werror=implicit-function-declaration]
   kzalloc(sizeof(struct dcn10_ipp), GFP_KERNEL);

A lot of other headers also miss a direct include in this file,
but this is the only one that causes a problem for now.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Alex Deucher

drm/amd/display: fix undefined struct member reference

2019-12-10T22:14:51+00:00

An initialization was added for two optional struct members.  One of
these is always present in the dcn20_resource file, but the other one
depends on CONFIG_DRM_AMD_DC_DSC_SUPPORT and causes a build failure if
that is missing:

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:926:14: error: excess elements in struct initializer [-Werror]
   .num_dsc = 5,

Add another #ifdef around the assignment.

Fixes: c3d03c5a196f ("drm/amd/display: Include num_vmid and num_dsc within NV14's resource caps")
Reviewed-by: Zhan Liu 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Alex Deucher

drm/amd/display: Compare clock state member to determine optimization.

2019-12-05T23:25:07+00:00

[Why]
It seems always request passive flip on RN due to incorrect compare
clock state to determine optization.

[How]
Instead of calling memcmp, compare clock state member to determine the
condition.

Signed-off-by: Yongqiang Sun 
Reviewed-by: Tony Cheng 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amdgpu/display: add fallthrough comment

2019-12-05T23:24:16+00:00

To avoid a compiler warning.

Reviewed-by: Zhan Liu 
Signed-off-by: Alex Deucher

drm/amd/display: Increase the number of retries after AUX DEFER

2019-12-05T23:23:43+00:00

[Why]
When a timeout occurs after a DEFER, some devices require more retries
than in the case of a regular timeout.

[How]
In a timeout occurrence, check whether a DEFER has occurred before the
timeout and retry MAX_DEFER_RETRIES retries times instead of
MAX_TIMEOUT_RETRIES.

Signed-off-by: George Shen 
Reviewed-by: Tony Cheng 
Acked-by: Abdoulaye Berthe 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: update dispclk and dppclk vco frequency

2019-12-05T23:23:04+00:00

Value obtained from DV is not allowing 8k60 CTA mode with DSC to
pass, after checking real value being used in hw, find out that
correct value is 3600, which will allow that mode.

Signed-off-by: Eric Yang 
Reviewed-by: Tony Cheng 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher

drm/amd/display: Fix screen tearing on vrr tests

2019-12-05T23:22:40+00:00

[Why]
Screen tearing is present in tests when setting the frame rate to
certain fps

[How]
Revert previous optimizations for low frame rates.

Signed-off-by: Amanda Liu 
Reviewed-by: Aric Cyr 
Acked-by: Leo Li 
Signed-off-by: Alex Deucher