From: Eric Yang <Eric.Yang2@amd.com>
Date: Mon, 23 Oct 2017 12:06:54 -0400
Subject: drm/amd/display: get remote dpcd caps for timing validation
Git-commit: 7d8d90d84fe8fd73d09a1efa26c22d4fe902a05e
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 -
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 -
drivers/gpu/drm/amd/display/dc/dc.h | 1
drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 28 ++++++++++++++++++++++-
4 files changed, 30 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1871,7 +1871,7 @@ enum dc_status dc_link_validate_mode_tim
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
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -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;
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -1031,6 +1031,7 @@ struct dc_sink {
/* private to dc_sink.c */
struct kref refcount;
+
};
void dc_sink_retain(struct dc_sink *sink);
--- a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
@@ -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 {