diff options
Diffstat (limited to 'include/drm/drm_dp_helper.h')
| -rw-r--r-- | include/drm/drm_dp_helper.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 262faf9e5e94..7f5dd2ee4a94 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1495,13 +1495,16 @@ struct drm_dp_desc { int drm_dp_read_desc(struct drm_dp_aux *aux, struct drm_dp_desc *desc, bool is_branch); +u32 drm_dp_get_edid_quirks(const struct edid *edid); /** * enum drm_dp_quirk - Display Port sink/branch device specific quirks * * Display Port sink and branch devices in the wild have a variety of bugs, try * to collect them here. The quirks are shared, but it's up to the drivers to - * implement workarounds for them. + * implement workarounds for them. Note that because some devices have + * unreliable OUIDs, the EDID of sinks should also be checked for quirks using + * drm_dp_get_edid_quirks(). */ enum drm_dp_quirk { /** @@ -1537,14 +1540,16 @@ enum drm_dp_quirk { /** * drm_dp_has_quirk() - does the DP device have a specific quirk * @desc: Device decriptor filled by drm_dp_read_desc() + * @edid_quirks: Optional quirk bitmask filled by drm_dp_get_edid_quirks() * @quirk: Quirk to query for * * Return true if DP device identified by @desc has @quirk. */ static inline bool -drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk) +drm_dp_has_quirk(const struct drm_dp_desc *desc, u32 edid_quirks, + enum drm_dp_quirk quirk) { - return desc->quirks & BIT(quirk); + return (desc->quirks | edid_quirks) & BIT(quirk); } #ifdef CONFIG_DRM_DP_CEC |