From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> 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: Manasi Navare <manasi.d.navare@xxxxxxxxx> Cc: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx> Cc: Harry Wentland <harry.wentland@xxxxxxx> Cc: Leo Li <sunpeng.li@xxxxxxx> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/drm_edid.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 4005dab6147d..ac662495635c 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -6033,10 +6033,13 @@ void get_monitor_range(const struct detailed_timing *timing, void *c) 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; -- 2.35.1
