diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-09-27 18:59:58 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-10-04 21:42:11 +0200 |
| commit | 67d7469a1772e013eee0adcb3963149576d89342 (patch) | |
| tree | ce363fc2934b05fc2ed966f9e997ffde4bef5f73 | |
| parent | drm/edid: Avoid multiple log lines for HFVSDB parsing (diff) | |
| download | linux-67d7469a1772e013eee0adcb3963149576d89342.tar.xz linux-67d7469a1772e013eee0adcb3963149576d89342.zip | |
drm/edid: Clarify why we only accept the "range limits only" descriptor
The current comment fails to clarify why we only accept
the "range limits only" variant of the range descriptor.
Reword it to make some actual sense.
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220927170006.27855-2-ville.syrjala@linux.intel.com
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 7c63d2c92e99..09a140e173c4 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -6052,10 +6052,13 @@ void get_monitor_range(const struct detailed_timing *timing, return; /* - * Check for flag range limits only. If flag == 1 then - * no additional timing information provided. - * Default GTF, GTF Secondary curve and CVT are not - * supported + * These limits are used to determine the VRR refresh + * rate range. Only the "range limits only" variant + * of the range descriptor seems to guarantee that + * any and all timings are accepted by the sink, as + * opposed to just timings conforming to the indicated + * formula (GTF/GTF2/CVT). Thus other variants of the + * range descriptor are not accepted here. */ if (range->flags != DRM_EDID_RANGE_LIMITS_ONLY_FLAG) return; |