diff options
| author | Sandor Yu <Sandor.yu@nxp.com> | 2022-04-15 10:42:48 +0800 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-04-19 18:19:02 +0200 |
| commit | a90b8fc9ca2d5cae915a0a185785325095245ec3 (patch) | |
| tree | 37b621d04522f49a8b228e351c34a4fb4c49c79f /drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | |
| parent | 8c1bfd0ccf904d80d2874062ef3fecdfddb2a48b (diff) | |
drm: bridge: dw_hdmi: Enable GCP only for Deep Color
HDMI1.4b specification section 6.5.3:
Source shall only send GCPs with non-zero CD to sinks
that indicate support for Deep Color.
DW HDMI GCP default enabled, but only transmit CD
and do not handle AVMUTE, PP norDefault_Phase (yet).
Disable Auto GCP when 24-bit color for sinks that not support Deep Color.
Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/78fa41e4fb3d3d53354034bc221fcf870dbac617.1649989179.git.Sandor.yu@nxp.com
Diffstat (limited to 'drivers/gpu/drm/bridge/synopsys/dw-hdmi.h')
| -rw-r--r-- | drivers/gpu/drm/bridge/synopsys/dw-hdmi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h index 1999db05bc3b..18df3e119553 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h @@ -850,6 +850,9 @@ enum { HDMI_FC_DATAUTO0_VSD_MASK = 0x08, HDMI_FC_DATAUTO0_VSD_OFFSET = 3, +/* FC_DATAUTO3 field values */ + HDMI_FC_DATAUTO3_GCP_AUTO = 0x04, + /* PHY_CONF0 field values */ HDMI_PHY_CONF0_PDZ_MASK = 0x80, HDMI_PHY_CONF0_PDZ_OFFSET = 7, |