diff options
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 7f0386175230..3dfcd6450f10 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -5864,6 +5864,22 @@ static void parse_cta_vdb(struct drm_connector *connector, const struct cea_db * } } +static bool cta_vdb_has_vic(const struct drm_connector *connector, u8 vic) +{ + const struct drm_display_info *info = &connector->display_info; + int i; + + if (!vic || !info->vics) + return false; + + for (i = 0; i < info->vics_len; i++) { + if (info->vics[i] == vic) + return true; + } + + return false; +} + static void drm_parse_vcdb(struct drm_connector *connector, const u8 *db) { struct drm_display_info *info = &connector->display_info; @@ -6909,10 +6925,14 @@ static u8 drm_mode_cea_vic(const struct drm_connector *connector, * * HDMI 1.4 (CTA-861-D) VIC range: [1..64] * HDMI 2.0 (CTA-861-F) VIC range: [1..107] + * + * If the sink lists the VIC in CTA VDB, assume it's fine, regardless of HDMI + * version. */ static u8 vic_for_avi_infoframe(const struct drm_connector *connector, u8 vic) { - if (!is_hdmi2_sink(connector) && vic > 64) + if (!is_hdmi2_sink(connector) && vic > 64 && + !cta_vdb_has_vic(connector, vic)) return 0; return vic; |