HF-VSDB/SCDB has bits to advertise support for 16, 12 and 10 bpc.
If none of the bits are set, the minimum bpc supported with DSC is 8.
This patch corrects the min bpc supported to be 8, instead of 0.
Fixes: 76ee7b905678 ("drm/edid: Parse DSC1.2 cap fields from HFVSDB block")
Cc: Ankit Nautiyal <[email protected]>
Cc: Uma Shankar <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
v2: s/DSC1.2/DSC 1.2
Signed-off-by: Ankit Nautiyal <[email protected]>
---
drivers/gpu/drm/drm_edid.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 4005dab6147d..ebe02cf7cd95 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5819,7 +5819,8 @@ static void drm_parse_hdmi_forum_scds(struct
drm_connector *connector,
else if (hf_scds[11] & DRM_EDID_DSC_10BPC)
hdmi_dsc->bpc_supported = 10;
else
- hdmi_dsc->bpc_supported = 0;
+ /* Supports min 8 BPC if DSC 1.2 is supported*/
+ hdmi_dsc->bpc_supported = 8;
dsc_max_frl_rate = (hf_scds[12] &
DRM_EDID_DSC_MAX_FRL_RATE_MASK) >> 4;
drm_get_max_frl_rate(dsc_max_frl_rate,
&hdmi_dsc->max_lanes,
--
2.25.1
