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authorVille Syrjälä <ville.syrjala@linux.intel.com>2020-09-04 14:53:53 +0300
committerVille Syrjälä <ville.syrjala@linux.intel.com>2020-09-17 18:39:01 +0300
commit2ef8d0f7de0ec0bc30c48e5f544a6082eb03e9f7 (patch)
treea76cb4f9d4969c10bfb343e9c115f1f8a3c1971b /include/drm
parentbc7ca6a647bf3c073a109d4ff0e8cad773a2f1d9 (diff)
drm/dp: Add helpers for DFP YCbCr 4:2:0 handling
Add helpers to determine whether the DFP supports YCbCr 4:2:0 passthrough or YCbCr 4:4:4->4:2:0 conversion. v2: Add kdocs (Lyude) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200904115354.25336-18-ville.syrjala@linux.intel.com Reviewed-by: Lyude Paul <lyude@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_dp_helper.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index fbba4a0f7366..c9f2851904d0 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -407,6 +407,10 @@ struct drm_device;
# define DP_DS_DVI_HIGH_COLOR_DEPTH (1 << 2)
/* offset 3 for HDMI */
# define DP_DS_HDMI_FRAME_SEQ_TO_FRAME_PACK (1 << 0)
+# define DP_DS_HDMI_YCBCR422_PASS_THROUGH (1 << 1)
+# define DP_DS_HDMI_YCBCR420_PASS_THROUGH (1 << 2)
+# define DP_DS_HDMI_YCBCR444_TO_422_CONV (1 << 3)
+# define DP_DS_HDMI_YCBCR444_TO_420_CONV (1 << 4)
#define DP_MAX_DOWNSTREAM_PORTS 0x10
@@ -1663,6 +1667,10 @@ int drm_dp_downstream_min_tmds_clock(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
int drm_dp_downstream_max_bpc(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
const u8 port_cap[4],
const struct edid *edid);
+bool drm_dp_downstream_420_passthrough(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+ const u8 port_cap[4]);
+bool drm_dp_downstream_444_to_420_conversion(const u8 dpcd[DP_RECEIVER_CAP_SIZE],
+ const u8 port_cap[4]);
struct drm_display_mode *drm_dp_downstream_mode(struct drm_device *dev,
const u8 dpcd[DP_RECEIVER_CAP_SIZE],
const u8 port_cap[4]);