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drm/amd/display: get remote dpcd caps for timing validation

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Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Yang 2017-10-23 12:06:54 -04:00 committed by Alex Deucher
parent 8a4cf458a8
commit 7d8d90d84f
4 changed files with 30 additions and 3 deletions
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2
drivers/gpu/drm/amd/display/dc/core/dc_link.c
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@ -1869,7 +1869,7 @@ enum dc_status dc_link_validate_mode_timing(
const struct dc_crtc_timing *timing)
{
uint32_t max_pix_clk = stream->sink->dongle_max_pix_clk;
struct dc_dongle_caps *dongle_caps = &link->link_status.dpcd_caps->dongle_caps;
struct dc_dongle_caps *dongle_caps = &link->dpcd_caps.dongle_caps;
/* A hack to avoid failing any modes for EDID override feature on
* topology change such as lower quality cable for DP or different dongle

2
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
View File

@ -2127,7 +2127,7 @@ static void get_active_converter_info(
union dwnstream_port_caps_byte3_hdmi
hdmi_caps = {.raw = det_caps[3] };
union dwnstream_port_caps_byte1
union dwnstream_port_caps_byte2
hdmi_color_caps = {.raw = det_caps[2] };
link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk =
det_caps[1] * 25000;

1
drivers/gpu/drm/amd/display/dc/dc.h
View File

@ -1031,6 +1031,7 @@ struct dc_sink {
/* private to dc_sink.c */
struct kref refcount;
};
void dc_sink_retain(struct dc_sink *sink);

28
drivers/gpu/drm/amd/display/dc/dc_dp_types.h
View File

@ -255,7 +255,7 @@ enum dpcd_downstream_port_detailed_type {
DOWN_STREAM_DETAILED_DP_PLUS_PLUS
};
union dwnstream_port_caps_byte1 {
union dwnstream_port_caps_byte2 {
struct {
uint8_t MAX_BITS_PER_COLOR_COMPONENT:2;
uint8_t RESERVED:6;
@ -298,6 +298,32 @@ union dwnstream_port_caps_byte3_hdmi {
/*4-byte structure for detailed capabilities of a down-stream port
(DP-to-TMDS converter).*/
union dwnstream_portxcaps {
struct {
union dwnstream_port_caps_byte0 byte0;
unsigned char max_TMDS_clock; //byte1
union dwnstream_port_caps_byte2 byte2;
union {
union dwnstream_port_caps_byte3_dvi byteDVI;
union dwnstream_port_caps_byte3_hdmi byteHDMI;
} byte3;
} bytes;
unsigned char raw[4];
};
union downstream_port {
struct {
unsigned char present:1;
unsigned char type:2;
unsigned char format_conv:1;
unsigned char detailed_caps:1;
unsigned char reserved:3;
} bits;
unsigned char raw;
};
union sink_status {
struct {