diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 105 |
1 files changed, 53 insertions, 52 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 3d969f83b3cc..1f94591ce5fb 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -3097,62 +3097,63 @@ static void get_active_converter_info( uint8_t det_caps[16]; /* CTS 4.2.2.7 expects source to read Detailed Capabilities Info : 00080h-0008F.*/ union dwnstream_port_caps_byte0 *port_caps = (union dwnstream_port_caps_byte0 *)det_caps; - core_link_read_dpcd(link, DP_DOWNSTREAM_PORT_0, - det_caps, sizeof(det_caps)); + if (core_link_read_dpcd(link, DP_DOWNSTREAM_PORT_0, + det_caps, sizeof(det_caps)) == DC_OK) { - 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; - break; - case DOWN_STREAM_DETAILED_DVI: - link->dpcd_caps.dongle_type = - 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; - - link->dpcd_caps.dongle_caps.dongle_type = link->dpcd_caps.dongle_type; - if (ds_port.fields.DETAILED_CAPS) { - - union dwnstream_port_caps_byte3_hdmi - hdmi_caps = {.raw = det_caps[3] }; - union dwnstream_port_caps_byte2 - hdmi_color_caps = {.raw = det_caps[2] }; - link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk_in_khz = - det_caps[1] * 2500; - - link->dpcd_caps.dongle_caps.is_dp_hdmi_s3d_converter = - hdmi_caps.bits.FRAME_SEQ_TO_FRAME_PACK; - /*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; + 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; + break; + case DOWN_STREAM_DETAILED_DVI: + link->dpcd_caps.dongle_type = + 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; + + link->dpcd_caps.dongle_caps.dongle_type = link->dpcd_caps.dongle_type; + if (ds_port.fields.DETAILED_CAPS) { + + union dwnstream_port_caps_byte3_hdmi + hdmi_caps = {.raw = det_caps[3] }; + union dwnstream_port_caps_byte2 + hdmi_color_caps = {.raw = det_caps[2] }; + link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk_in_khz = + det_caps[1] * 2500; + + link->dpcd_caps.dongle_caps.is_dp_hdmi_s3d_converter = + hdmi_caps.bits.FRAME_SEQ_TO_FRAME_PACK; + /*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( + hdmi_color_caps.bits.MAX_BITS_PER_COLOR_COMPONENT); + + if (link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk_in_khz != 0) + link->dpcd_caps.dongle_caps.extendedCapValid = true; } - link->dpcd_caps.dongle_caps.dp_hdmi_max_bpc = - translate_dpcd_max_bpc( - hdmi_color_caps.bits.MAX_BITS_PER_COLOR_COMPONENT); - - if (link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk_in_khz != 0) - link->dpcd_caps.dongle_caps.extendedCapValid = true; + break; } - - break; } } |