diff options
| author | Paul Hsieh <[email protected]> | 2023-10-25 10:53:35 +0800 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2023-11-17 00:51:35 -0500 |
| commit | 923bbfe6c888812db1088d684bd30c24036226d2 (patch) | |
| tree | 3b81373165f1b117ec8f3379b868e28f3efcabd4 /drivers/gpu/drm/amd/display/dc/link/link_detection.c | |
| parent | 435f5b369657cffee4b04db1f5805b48599f4dbe (diff) | |
drm/amd/display: Clear dpcd_sink_ext_caps if not set
[WHY]
Some eDP panels' ext caps don't set initial values
and the value of dpcd_addr (0x317) is random.
It means that sometimes the eDP can be OLED, miniLED and etc,
and cause incorrect backlight control interface.
[HOW]
Add remove_sink_ext_caps to remove sink ext caps (HDR, OLED and etc)
Cc: Mario Limonciello <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: [email protected]
Reviewed-by: Anthony Koo <[email protected]>
Acked-by: Alex Hung <[email protected]>
Signed-off-by: Paul Hsieh <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link/link_detection.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_detection.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c index d6f0f857c05a..f2fe523f914f 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c @@ -1088,6 +1088,9 @@ static bool detect_link_and_local_sink(struct dc_link *link, if (sink->edid_caps.panel_patch.skip_scdc_overwrite) link->ctx->dc->debug.hdmi20_disable = true; + if (sink->edid_caps.panel_patch.remove_sink_ext_caps) + link->dpcd_sink_ext_caps.raw = 0; + if (dc_is_hdmi_signal(link->connector_signal)) read_scdc_caps(link->ddc, link->local_sink); |