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| author | Muhammad Ansari <muhammad.ansari@amd.com> | 2023-09-25 12:00:31 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-10-09 16:53:02 -0400 |
| commit | 43693e859b328db6017e51e93b4da36fe64d6e47 (patch) | |
| tree | e3417c1c9890f05c3bf4326a5793043095ed6210 /drivers/gpu/drm/amd/display/modules/freesync | |
| parent | 4ea7151f6b60817ba28bd339e37687aeb44cc200 (diff) | |
| download | linux-stable-43693e859b328db6017e51e93b4da36fe64d6e47.tar.gz linux-stable-43693e859b328db6017e51e93b4da36fe64d6e47.tar.bz2 linux-stable-43693e859b328db6017e51e93b4da36fe64d6e47.zip | |
drm/amd/display: VSIF v3 set Max Refresh Rate
[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 <anthony.koo@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Muhammad Ansari <muhammad.ansari@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/freesync')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index ef3a67409021..ccecddafeb05 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -626,7 +626,6 @@ static void build_vrr_infopacket_data_v3(const struct mod_vrr_params *vrr, unsigned int max_refresh; unsigned int fixed_refresh; unsigned int min_programmed; - unsigned int max_programmed; /* PB1 = 0x1A (24bit AMD IEEE OUI (0x00001A) - Byte 0) */ infopacket->sb[1] = 0x1A; @@ -672,21 +671,17 @@ static void build_vrr_infopacket_data_v3(const struct mod_vrr_params *vrr, (vrr->state == VRR_STATE_INACTIVE) ? min_refresh : max_refresh; // Non-fs case, program nominal range - max_programmed = (vrr->state == VRR_STATE_ACTIVE_FIXED) ? fixed_refresh : - (vrr->state == VRR_STATE_ACTIVE_VARIABLE) ? max_refresh : - max_refresh;// Non-fs case, program nominal range - /* PB7 = FreeSync Minimum refresh rate (Hz) */ infopacket->sb[7] = min_programmed & 0xFF; /* PB8 = FreeSync Maximum refresh rate (Hz) */ - infopacket->sb[8] = max_programmed & 0xFF; + infopacket->sb[8] = max_refresh & 0xFF; /* PB11 : MSB FreeSync Minimum refresh rate [Hz] - bits 9:8 */ infopacket->sb[11] = (min_programmed >> 8) & 0x03; /* PB12 : MSB FreeSync Maximum refresh rate [Hz] - bits 9:8 */ - infopacket->sb[12] = (max_programmed >> 8) & 0x03; + infopacket->sb[12] = (max_refresh >> 8) & 0x03; /* PB16 : Reserved bits 7:1, FixedRate bit 0 */ infopacket->sb[16] = (vrr->state == VRR_STATE_ACTIVE_FIXED) ? 1 : 0; |