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

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[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>
This commit is contained in:
Muhammad Ansari 2023-09-25 12:00:31 -04:00 committed by Alex Deucher
parent 4ea7151f6b
commit 43693e859b
1 changed files with 2 additions and 7 deletions
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9
drivers/gpu/drm/amd/display/modules/freesync/freesync.c
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@ -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;