linux-stable.git/drivers/gpu/drm/amd/display/modules, branch v6.7.7

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

2024-02-05T20:17:11+00:00

This reverts commit f015d8b6405d950f30826b4d8d9e1084dd9ea2a4.

duplicated a change made in 6.7
e7ab758741672acb21c5d841a9f0309d30e48a06

Cc: stable@vger.kernel.org # 6.7
Signed-off-by: Jonathan Gray 
Signed-off-by: Greg Kroah-Hartman

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

2024-02-01T00:21:13+00:00

commit 571c2fa26aa654946447c282a09d40a56c7ff128 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: Fix sending VSC (+ colorimetry) packets for DP/eDP displays without PSR

2024-01-04T14:48:15+00:00

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

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

2023-12-12T17:01:44+00:00

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

drm/amd/display: VSIF v3 set Max Refresh Rate

2023-10-09T20:53:02+00:00

[WHY]
FreeSync spec requires PB8 and PB12 to be set to nominal
refresh rate regardless of fixed rate or variable

[HOW]
Removed the condition that checks and overwrites max refresh rate
and set PB8/PB12 to be set to max refresh rate always

Reviewed-by: Anthony Koo 
Acked-by: Tom Chung 
Signed-off-by: Muhammad Ansari 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Clean up code warnings

2023-10-04T22:42:01+00:00

- Fix constness of string parameters
- Fix zero-initialization of structs which cannot take a 0 literal as the
  first field, for example enums

Reviewed-by: Dillon Varone 
Acked-by: Aurabindo Pillai 
Signed-off-by: Aric Cyr 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: fix problems in power_helper

2023-10-04T22:35:56+00:00

[Why & How]
Fix following problems:
- In abm config, forget to initialize config.ambient_thresholds_lux.
- Adjust the coding style problem
- Restrict to call psr_su_set_dsc_slice_height() under edp only

Reviewed-by: Robin Chen 
Signed-off-by: Wayne Lin 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

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

2023-09-06T18:32:39+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: PQ regamma end point

2023-08-30T18:58:38+00:00

[WHY & HOW]
PQ has a fixed range of 0-10,000 nits.
Using 1=80 nits normalization, PQ should map to 1.0 for X=125.0
HW LUT used for interpolation does not have X=125 so it's interpolated.
However, we cap Y to 1 for all X>=125.

The closest larger HW point is 128.
What we want is Y(128) such that interpolation through 125 gives 1.0.
Such value is ~1.00256.
Another change is to hardcode PQ table, we pretty much always have 1=80
normalization so the table can be static.

Reviewed-by: Aric Cyr 
Acked-by: Wayne Lin 
Signed-off-by: Krunoslav Kovac 
Tested-by: Daniel Wheeler 
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