diff options
| author | Swapnil Patel <swapnil.patel@amd.com> | 2023-10-04 21:58:57 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-10-27 00:57:36 +0200 |
| commit | 5edb7cdff85af8f8c5fda5b88310535ab823f663 (patch) | |
| tree | 0ac35967d204507c32e18b909023506c4453de3a | |
| parent | drm/amd/display: Update SDP VSC colorimetry from DP test automation request (diff) | |
| download | linux-5edb7cdff85af8f8c5fda5b88310535ab823f663.tar.xz linux-5edb7cdff85af8f8c5fda5b88310535ab823f663.zip | |
drm/amd/display: Reduce default backlight min from 5 nits to 1 nits
[Why & How]
Currently set_default_brightness_aux function uses 5 nits as lower limit
to check for valid default_backlight setting. However some newer panels
can support even lower default settings
Reviewed-by: Agustin Gutierrez <agustin.gutierrez@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Swapnil Patel <swapnil.patel@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c index 938df1f0f7da..86f97ddcc595 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c @@ -283,8 +283,8 @@ bool set_default_brightness_aux(struct dc_link *link) if (link && link->dpcd_sink_ext_caps.bits.oled == 1) { if (!read_default_bl_aux(link, &default_backlight)) default_backlight = 150000; - // if < 5 nits or > 5000, it might be wrong readback - if (default_backlight < 5000 || default_backlight > 5000000) + // if < 1 nits or > 5000, it might be wrong readback + if (default_backlight < 1000 || default_backlight > 5000000) default_backlight = 150000; // return edp_set_backlight_level_nits(link, true, |