diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 131 |
1 files changed, 37 insertions, 94 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 063d019a3f6f..1ee544a32ebb 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 @@ -1533,69 +1533,6 @@ static bool decide_fallback_link_setting( return true; } -static uint32_t bandwidth_in_kbps_from_timing( - const struct dc_crtc_timing *timing) -{ - uint32_t bits_per_channel = 0; - uint32_t kbps; - - switch (timing->display_color_depth) { - case COLOR_DEPTH_666: - bits_per_channel = 6; - break; - case COLOR_DEPTH_888: - bits_per_channel = 8; - break; - case COLOR_DEPTH_101010: - bits_per_channel = 10; - break; - case COLOR_DEPTH_121212: - bits_per_channel = 12; - break; - case COLOR_DEPTH_141414: - bits_per_channel = 14; - break; - case COLOR_DEPTH_161616: - bits_per_channel = 16; - break; - default: - break; - } - - ASSERT(bits_per_channel != 0); - - kbps = timing->pix_clk_100hz / 10; - kbps *= bits_per_channel; - - if (timing->flags.Y_ONLY != 1) { - /*Only YOnly make reduce bandwidth by 1/3 compares to RGB*/ - kbps *= 3; - if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420) - kbps /= 2; - else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422) - kbps = kbps * 2 / 3; - } - - return kbps; - -} - -static uint32_t bandwidth_in_kbps_from_link_settings( - const struct dc_link_settings *link_setting) -{ - uint32_t link_rate_in_kbps = link_setting->link_rate * - LINK_RATE_REF_FREQ_IN_KHZ; - - uint32_t lane_count = link_setting->lane_count; - uint32_t kbps = link_rate_in_kbps; - - kbps *= lane_count; - kbps *= 8; /* 8 bits per byte*/ - - return kbps; - -} - bool dp_validate_mode_timing( struct dc_link *link, const struct dc_crtc_timing *timing) @@ -1611,8 +1548,7 @@ bool dp_validate_mode_timing( timing->v_addressable == (uint32_t) 480) return true; - /* We always use verified link settings */ - link_setting = &link->verified_link_cap; + link_setting = dc_link_get_link_cap(link); /* TODO: DYNAMIC_VALIDATION needs to be implemented */ /*if (flags.DYNAMIC_VALIDATION == 1 && @@ -1620,8 +1556,8 @@ bool dp_validate_mode_timing( link_setting = &link->verified_link_cap; */ - req_bw = bandwidth_in_kbps_from_timing(timing); - max_bw = bandwidth_in_kbps_from_link_settings(link_setting); + req_bw = dc_bandwidth_in_kbps_from_timing(timing); + max_bw = dc_link_bandwidth_kbps(link, link_setting); if (req_bw <= max_bw) { /* remember the biggest mode here, during @@ -1656,7 +1592,8 @@ static bool decide_dp_link_settings(struct dc_link *link, struct dc_link_setting */ while (current_link_setting.link_rate <= link->verified_link_cap.link_rate) { - link_bw = bandwidth_in_kbps_from_link_settings( + link_bw = dc_link_bandwidth_kbps( + link, ¤t_link_setting); if (req_bw <= link_bw) { *link_setting = current_link_setting; @@ -1707,7 +1644,8 @@ static bool decide_edp_link_settings(struct dc_link *link, struct dc_link_settin */ while (current_link_setting.link_rate <= link->verified_link_cap.link_rate) { - link_bw = bandwidth_in_kbps_from_link_settings( + link_bw = dc_link_bandwidth_kbps( + link, ¤t_link_setting); if (req_bw <= link_bw) { *link_setting = current_link_setting; @@ -1739,7 +1677,7 @@ void decide_link_settings(struct dc_stream_state *stream, struct dc_link *link; uint32_t req_bw; - req_bw = bandwidth_in_kbps_from_timing(&stream->timing); + req_bw = dc_bandwidth_in_kbps_from_timing(&stream->timing); link = stream->link; @@ -2247,6 +2185,30 @@ static int translate_dpcd_max_bpc(enum dpcd_downstream_port_max_bpc bpc) return -1; } +static void read_dp_device_vendor_id(struct dc_link *link) +{ + struct dp_device_vendor_id dp_id; + + /* read IEEE branch device id */ + core_link_read_dpcd( + link, + DP_BRANCH_OUI, + (uint8_t *)&dp_id, + sizeof(dp_id)); + + link->dpcd_caps.branch_dev_id = + (dp_id.ieee_oui[0] << 16) + + (dp_id.ieee_oui[1] << 8) + + dp_id.ieee_oui[2]; + + memmove( + link->dpcd_caps.branch_dev_name, + dp_id.ieee_device_id, + sizeof(dp_id.ieee_device_id)); +} + + + static void get_active_converter_info( uint8_t data, struct dc_link *link) { @@ -2304,8 +2266,8 @@ static void get_active_converter_info( 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 = - det_caps[1] * 25000; + 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; @@ -2322,7 +2284,7 @@ static void get_active_converter_info( translate_dpcd_max_bpc( hdmi_color_caps.bits.MAX_BITS_PER_COLOR_COMPONENT); - if (link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk != 0) + if (link->dpcd_caps.dongle_caps.dp_hdmi_max_pixel_clk_in_khz != 0) link->dpcd_caps.dongle_caps.extendedCapValid = true; } @@ -2333,27 +2295,6 @@ static void get_active_converter_info( ddc_service_set_dongle_type(link->ddc, link->dpcd_caps.dongle_type); { - struct dp_device_vendor_id dp_id; - - /* read IEEE branch device id */ - core_link_read_dpcd( - link, - DP_BRANCH_OUI, - (uint8_t *)&dp_id, - sizeof(dp_id)); - - link->dpcd_caps.branch_dev_id = - (dp_id.ieee_oui[0] << 16) + - (dp_id.ieee_oui[1] << 8) + - dp_id.ieee_oui[2]; - - memmove( - link->dpcd_caps.branch_dev_name, - dp_id.ieee_device_id, - sizeof(dp_id.ieee_device_id)); - } - - { struct dp_sink_hw_fw_revision dp_hw_fw_revision; core_link_read_dpcd( @@ -2517,6 +2458,8 @@ static bool retrieve_link_cap(struct dc_link *link) ds_port.byte = dpcd_data[DP_DOWNSTREAMPORT_PRESENT - DP_DPCD_REV]; + read_dp_device_vendor_id(link); + get_active_converter_info(ds_port.byte, link); dp_wa_power_up_0010FA(link, dpcd_data, sizeof(dpcd_data)); |