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drm/amd/display: handle active dongle port type is DP++ or DP case 

[Why]:
Some active dongles have DP++ port and DP port at the same time. Current
code doesn't cover DP++ case and processes as default DVI case, in which
audio is disabled. Because of dual mode, DP case is also treat as DVI case
for the other port.

[How]:
According DP 1.4 spec, add DP++ procedure similar with HDMI case. Also
add None dongle type for DP case.

Signed-off-by: Dale Zhao <dale.zhao@amd.com>
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dale Zhao 2019-07-10 17:36:53 +08:00 committed by Alex Deucher
parent b791f9dc2d
commit b70666934b
2 changed files with 21 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View File

@ -2247,8 +2247,8 @@ static void get_active_converter_info(
case DOWNSTREAM_VGA:
link->dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_VGA_CONVERTER;
break;
case DOWNSTREAM_DVI_HDMI:
/* At this point we don't know is it DVI or HDMI,
case DOWNSTREAM_DVI_HDMI_DP_PLUS_PLUS:
/* At this point we don't know is it DVI or HDMI or DP++,
* assume DVI.*/
link->dpcd_caps.dongle_type = DISPLAY_DONGLE_DP_DVI_CONVERTER;
break;
@ -2265,6 +2265,10 @@ static void get_active_converter_info(
det_caps, sizeof(det_caps));
switch (port_caps->bits.DWN_STRM_PORTX_TYPE) {
/*Handle DP case as DONGLE_NONE*/
case DOWN_STREAM_DETAILED_DP:
link->dpcd_caps.dongle_type = DISPLAY_DONGLE_NONE;
break;
case DOWN_STREAM_DETAILED_VGA:
link->dpcd_caps.dongle_type =
DISPLAY_DONGLE_DP_VGA_CONVERTER;
@ -2274,6 +2278,8 @@ static void get_active_converter_info(
DISPLAY_DONGLE_DP_DVI_CONVERTER;
break;
case DOWN_STREAM_DETAILED_HDMI:
case DOWN_STREAM_DETAILED_DP_PLUS_PLUS:
/*Handle DP++ active converter case, process DP++ case as HDMI case according DP1.4 spec*/
link->dpcd_caps.dongle_type =
DISPLAY_DONGLE_DP_HDMI_CONVERTER;
@ -2289,14 +2295,18 @@ static void get_active_converter_info(
link->dpcd_caps.dongle_caps.is_dp_hdmi_s3d_converter =
hdmi_caps.bits.FRAME_SEQ_TO_FRAME_PACK;
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr422_pass_through =
hdmi_caps.bits.YCrCr422_PASS_THROUGH;
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr420_pass_through =
hdmi_caps.bits.YCrCr420_PASS_THROUGH;
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr422_converter =
hdmi_caps.bits.YCrCr422_CONVERSION;
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr420_converter =
hdmi_caps.bits.YCrCr420_CONVERSION;
/*YCBCR capability only for HDMI case*/
if (port_caps->bits.DWN_STRM_PORTX_TYPE
== DOWN_STREAM_DETAILED_HDMI) {
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr422_pass_through =
hdmi_caps.bits.YCrCr422_PASS_THROUGH;
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr420_pass_through =
hdmi_caps.bits.YCrCr420_PASS_THROUGH;
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr422_converter =
hdmi_caps.bits.YCrCr422_CONVERSION;
link->dpcd_caps.dongle_caps.is_dp_hdmi_ycbcr420_converter =
hdmi_caps.bits.YCrCr420_CONVERSION;
}
link->dpcd_caps.dongle_caps.dp_hdmi_max_bpc =
translate_dpcd_max_bpc(

2
drivers/gpu/drm/amd/display/include/dpcd_defs.h
View File

@ -43,7 +43,7 @@ enum dpcd_revision {
enum dpcd_downstream_port_type {
DOWNSTREAM_DP = 0,
DOWNSTREAM_VGA,
DOWNSTREAM_DVI_HDMI,
DOWNSTREAM_DVI_HDMI_DP_PLUS_PLUS,/* DVI, HDMI, DP++ */
DOWNSTREAM_NONDDC /* has no EDID (TV,CV) */
};