torvalds/linux
3
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-18 04:09:08 +08:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Add comments to v_total calculation and drop legacy TODO

Browse Source 
[WHY & HOW]
This commit just adds some simple comments to help understand the
calculation of V total duration for Freesync. Also, remove a legacy TODO
comment from link service type.

Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rodrigo Siqueira
2024-02-14 13:32:32 -07:00
committed by Alex Deucher
parent 2c8c7a2cd8
commit f1b8479dc9
2 changed files with 2 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/amd/display/include/link_service_types.h
View File

@@ -73,7 +73,6 @@ struct link_training_settings {
enum dc_pre_emphasis *pre_emphasis;
enum dc_post_cursor2 *post_cursor2;
bool should_set_fec_ready;
/* TODO - factor lane_settings out because it changes during LT */
union dc_dp_ffe_preset *ffe_preset;
uint16_t cr_pattern_time;

4
drivers/gpu/drm/amd/display/modules/freesync/freesync.c
View File

@@ -158,13 +158,13 @@ static unsigned int calc_v_total_from_duration(
if (duration_in_us > vrr->max_duration_in_us)
duration_in_us = vrr->max_duration_in_us;
if (dc_is_hdmi_signal(stream->signal)) {
if (dc_is_hdmi_signal(stream->signal)) { // change for HDMI to comply with spec
uint32_t h_total_up_scaled;
h_total_up_scaled = stream->timing.h_total * 10000;
v_total = div_u64((unsigned long long)duration_in_us
* stream->timing.pix_clk_100hz + (h_total_up_scaled - 1),
h_total_up_scaled);
h_total_up_scaled); //ceiling for MMax and MMin for MVRR
} else {
v_total = div64_u64(div64_u64(((unsigned long long)(
duration_in_us) * (stream->timing.pix_clk_100hz / 10)),