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| author | Aric Cyr <aric.cyr@amd.com> | 2020-02-09 12:31:25 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-25 11:04:01 -0500 |
| commit | 3fc6376ed6f2f67bc9fb0c7a3cf07967d6aa6216 (patch) | |
| tree | 536aa031b1181938ce4e2b207c0d2f9766a1e0d0 /drivers/gpu/drm/amd/display/modules/freesync | |
| parent | 0062972b9d9f888d0273c6496769d02e8f509135 (diff) | |
| download | linux-stable-3fc6376ed6f2f67bc9fb0c7a3cf07967d6aa6216.tar.gz linux-stable-3fc6376ed6f2f67bc9fb0c7a3cf07967d6aa6216.tar.bz2 linux-stable-3fc6376ed6f2f67bc9fb0c7a3cf07967d6aa6216.zip | |
drm/amd/display: Only round InfoFrame refresh rates
[Why]
When calculating nominal refresh rates, don't round.
Only the VSIF needs to be rounded.
[How]
Revert rounding change for nominal and just round when forming the
FreeSync VSIF.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Harry Wentland <harry.wentland@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 | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index b9992ebf77a6..4e542826cd26 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -524,12 +524,12 @@ static void build_vrr_infopacket_data(const struct mod_vrr_params *vrr, infopacket->sb[6] |= 0x04; /* PB7 = FreeSync Minimum refresh rate (Hz) */ - infopacket->sb[7] = (unsigned char)(vrr->min_refresh_in_uhz / 1000000); + infopacket->sb[7] = (unsigned char)((vrr->min_refresh_in_uhz + 500000) / 1000000); /* PB8 = FreeSync Maximum refresh rate (Hz) * Note: We should never go above the field rate of the mode timing set. */ - infopacket->sb[8] = (unsigned char)(vrr->max_refresh_in_uhz / 1000000); + infopacket->sb[8] = (unsigned char)((vrr->max_refresh_in_uhz + 500000) / 1000000); //FreeSync HDR @@ -747,10 +747,6 @@ void mod_freesync_build_vrr_params(struct mod_freesync *mod_freesync, nominal_field_rate_in_uhz = mod_freesync_calc_nominal_field_rate(stream); - /* Rounded to the nearest Hz */ - nominal_field_rate_in_uhz = 1000000ULL * - div_u64(nominal_field_rate_in_uhz + 500000, 1000000); - min_refresh_in_uhz = in_config->min_refresh_in_uhz; max_refresh_in_uhz = in_config->max_refresh_in_uhz; |