diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ddi.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 34 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_drv.h | 3 |
3 files changed, 13 insertions, 29 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 04f68804834..9792ea8df13 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -296,9 +296,6 @@ static void intel_ddi_mode_set(struct intel_encoder *encoder) DRM_DEBUG_DRIVER("DP audio: write eld information\n"); intel_write_eld(&encoder->base, adjusted_mode); } - - intel_dp_init_link_config(intel_dp); - } else if (type == INTEL_OUTPUT_HDMI) { struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base); @@ -1202,7 +1199,7 @@ void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder) val = DP_TP_CTL_ENABLE | DP_TP_CTL_MODE_SST | DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE; - if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN) + if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) val |= DP_TP_CTL_ENHANCED_FRAME_ENABLE; I915_WRITE(DP_TP_CTL(port), val); POSTING_READ(DP_TP_CTL(port)); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 3575b86ca79..5f0c783027c 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -876,21 +876,6 @@ found: return true; } -void intel_dp_init_link_config(struct intel_dp *intel_dp) -{ - memset(intel_dp->link_configuration, 0, DP_LINK_CONFIGURATION_SIZE); - intel_dp->link_configuration[0] = intel_dp->link_bw; - intel_dp->link_configuration[1] = intel_dp->lane_count; - intel_dp->link_configuration[8] = DP_SET_ANSI_8B10B; - /* - * Check for DPCD version > 1.1 and enhanced framing support - */ - if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 && - (intel_dp->dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP)) { - intel_dp->link_configuration[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; - } -} - static void ironlake_set_pll_cpu_edp(struct intel_dp *intel_dp) { struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp); @@ -963,8 +948,6 @@ static void intel_dp_mode_set(struct intel_encoder *encoder) intel_write_eld(&encoder->base, adjusted_mode); } - intel_dp_init_link_config(intel_dp); - /* Split out the IBX/CPU vs CPT settings */ if (port == PORT_A && IS_GEN7(dev) && !IS_VALLEYVIEW(dev)) { @@ -974,7 +957,7 @@ static void intel_dp_mode_set(struct intel_encoder *encoder) intel_dp->DP |= DP_SYNC_VS_HIGH; intel_dp->DP |= DP_LINK_TRAIN_OFF_CPT; - if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN) + if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) intel_dp->DP |= DP_ENHANCED_FRAMING; intel_dp->DP |= crtc->pipe << 29; @@ -988,7 +971,7 @@ static void intel_dp_mode_set(struct intel_encoder *encoder) intel_dp->DP |= DP_SYNC_VS_HIGH; intel_dp->DP |= DP_LINK_TRAIN_OFF; - if (intel_dp->link_configuration[1] & DP_LANE_COUNT_ENHANCED_FRAME_EN) + if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) intel_dp->DP |= DP_ENHANCED_FRAMING; if (crtc->pipe == 1) @@ -2444,14 +2427,21 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) uint8_t voltage; int voltage_tries, loop_tries; uint32_t DP = intel_dp->DP; + uint8_t link_config[2]; if (HAS_DDI(dev)) intel_ddi_prepare_link_retrain(encoder); /* Write the link configuration data */ - intel_dp_aux_native_write(intel_dp, DP_LINK_BW_SET, - intel_dp->link_configuration, - DP_LINK_CONFIGURATION_SIZE); + link_config[0] = intel_dp->link_bw; + link_config[1] = intel_dp->lane_count; + if (drm_dp_enhanced_frame_cap(intel_dp->dpcd)) + link_config[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; + intel_dp_aux_native_write(intel_dp, DP_LINK_BW_SET, link_config, 2); + + link_config[0] = 0; + link_config[1] = DP_SET_ANSI_8B10B; + intel_dp_aux_native_write(intel_dp, DP_DOWNSPREAD_CTRL, link_config, 2); DP |= DP_PORT_EN; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 4b75328462e..287bbef72da 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -437,13 +437,11 @@ struct intel_hdmi { }; #define DP_MAX_DOWNSTREAM_PORTS 0x10 -#define DP_LINK_CONFIGURATION_SIZE 9 struct intel_dp { uint32_t output_reg; uint32_t aux_ch_ctl_reg; uint32_t DP; - uint8_t link_configuration[DP_LINK_CONFIGURATION_SIZE]; bool has_audio; enum hdmi_force_audio force_audio; uint32_t color_range; @@ -548,7 +546,6 @@ extern void intel_dp_init(struct drm_device *dev, int output_reg, enum port port); extern bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port, struct intel_connector *intel_connector); -extern void intel_dp_init_link_config(struct intel_dp *intel_dp); extern void intel_dp_start_link_train(struct intel_dp *intel_dp); extern void intel_dp_complete_link_train(struct intel_dp *intel_dp); extern void intel_dp_stop_link_train(struct intel_dp *intel_dp); |