diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 98 |
1 files changed, 47 insertions, 51 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index c0449324143c..a6c426afaa7a 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -155,6 +155,18 @@ intel_edp_link_config(struct intel_encoder *intel_encoder, *link_bw = 270000; } +int +intel_edp_target_clock(struct intel_encoder *intel_encoder, + struct drm_display_mode *mode) +{ + struct intel_dp *intel_dp = container_of(intel_encoder, struct intel_dp, base); + + if (intel_dp->panel_fixed_mode) + return intel_dp->panel_fixed_mode->clock; + else + return mode->clock; +} + static int intel_dp_max_lane_count(struct intel_dp *intel_dp) { @@ -225,7 +237,7 @@ intel_dp_max_data_rate(int max_link_clock, int max_lanes) static bool intel_dp_adjust_dithering(struct intel_dp *intel_dp, struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) + bool adjust_mode) { int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_dp)); int max_lanes = intel_dp_max_lane_count(intel_dp); @@ -239,8 +251,8 @@ intel_dp_adjust_dithering(struct intel_dp *intel_dp, if (mode_rate > max_rate) return false; - if (adjusted_mode) - adjusted_mode->private_flags + if (adjust_mode) + mode->private_flags |= INTEL_MODE_DP_FORCE_6BPC; return true; @@ -263,7 +275,7 @@ intel_dp_mode_valid(struct drm_connector *connector, return MODE_PANEL; } - if (!intel_dp_adjust_dithering(intel_dp, mode, NULL)) + if (!intel_dp_adjust_dithering(intel_dp, mode, false)) return MODE_CLOCK_HIGH; if (mode->clock < 10000) @@ -691,7 +703,8 @@ intel_dp_i2c_init(struct intel_dp *intel_dp, } static bool -intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, +intel_dp_mode_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { struct drm_device *dev = encoder->dev; @@ -706,28 +719,23 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, intel_fixed_panel_mode(intel_dp->panel_fixed_mode, adjusted_mode); intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN, mode, adjusted_mode); - /* - * the mode->clock is used to calculate the Data&Link M/N - * of the pipe. For the eDP the fixed clock should be used. - */ - mode->clock = intel_dp->panel_fixed_mode->clock; } - if (mode->flags & DRM_MODE_FLAG_DBLCLK) + if (adjusted_mode->flags & DRM_MODE_FLAG_DBLCLK) return false; DRM_DEBUG_KMS("DP link computation with max lane count %i " "max bw %02x pixel clock %iKHz\n", - max_lane_count, bws[max_clock], mode->clock); + max_lane_count, bws[max_clock], adjusted_mode->clock); - if (!intel_dp_adjust_dithering(intel_dp, mode, adjusted_mode)) + if (!intel_dp_adjust_dithering(intel_dp, adjusted_mode, true)) return false; bpp = adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 24; - mode_rate = intel_dp_link_required(mode->clock, bpp); + mode_rate = intel_dp_link_required(adjusted_mode->clock, bpp); - for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) { - for (clock = 0; clock <= max_clock; clock++) { + for (clock = 0; clock <= max_clock; clock++) { + for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) { int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count); if (mode_rate <= link_avail) { @@ -786,8 +794,7 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { struct drm_device *dev = crtc->dev; - struct drm_mode_config *mode_config = &dev->mode_config; - struct drm_encoder *encoder; + struct intel_encoder *encoder; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int lane_count = 4; @@ -797,13 +804,9 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode, /* * Find the lane count in the intel_encoder private */ - list_for_each_entry(encoder, &mode_config->encoder_list, head) { - struct intel_dp *intel_dp; + for_each_encoder_on_crtc(dev, crtc, encoder) { + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); - if (encoder->crtc != crtc) - continue; - - intel_dp = enc_to_intel_dp(encoder); if (intel_dp->base.type == INTEL_OUTPUT_DISPLAYPORT || intel_dp->base.type == INTEL_OUTPUT_EDP) { @@ -1171,10 +1174,14 @@ static void ironlake_edp_panel_off(struct intel_dp *intel_dp) WARN(!intel_dp->want_panel_vdd, "Need VDD to turn off panel\n"); pp = ironlake_get_pp_control(dev_priv); - pp &= ~(POWER_TARGET_ON | PANEL_POWER_RESET | EDP_BLC_ENABLE); + /* We need to switch off panel power _and_ force vdd, for otherwise some + * panels get very unhappy and cease to work. */ + pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE); I915_WRITE(PCH_PP_CONTROL, pp); POSTING_READ(PCH_PP_CONTROL); + intel_dp->want_panel_vdd = false; + ironlake_wait_panel_off(intel_dp); } @@ -1284,11 +1291,9 @@ static void intel_dp_prepare(struct drm_encoder *encoder) * ensure that we have vdd while we switch off the panel. */ ironlake_edp_panel_vdd_on(intel_dp); ironlake_edp_backlight_off(intel_dp); - ironlake_edp_panel_off(intel_dp); - intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); + ironlake_edp_panel_off(intel_dp); intel_dp_link_down(intel_dp); - ironlake_edp_panel_vdd_off(intel_dp, false); } static void intel_dp_commit(struct drm_encoder *encoder) @@ -1323,11 +1328,9 @@ intel_dp_dpms(struct drm_encoder *encoder, int mode) /* Switching the panel off requires vdd. */ ironlake_edp_panel_vdd_on(intel_dp); ironlake_edp_backlight_off(intel_dp); - ironlake_edp_panel_off(intel_dp); - intel_dp_sink_dpms(intel_dp, mode); + ironlake_edp_panel_off(intel_dp); intel_dp_link_down(intel_dp); - ironlake_edp_panel_vdd_off(intel_dp, false); if (is_cpu_edp(intel_dp)) ironlake_edp_pll_off(encoder); @@ -1768,7 +1771,7 @@ intel_dp_start_link_train(struct intel_dp *intel_dp) for (i = 0; i < intel_dp->lane_count; i++) if ((intel_dp->train_set[i] & DP_TRAIN_MAX_SWING_REACHED) == 0) break; - if (i == intel_dp->lane_count) { + if (i == intel_dp->lane_count && voltage_tries == 5) { ++loop_tries; if (loop_tries == 5) { DRM_DEBUG_KMS("too many full retries, give up\n"); @@ -1922,7 +1925,7 @@ intel_dp_link_down(struct intel_dp *intel_dp) DP |= DP_LINK_TRAIN_OFF; } - if (!HAS_PCH_CPT(dev) && + if (HAS_PCH_IBX(dev) && I915_READ(intel_dp->output_reg) & DP_PIPEB_SELECT) { struct drm_crtc *crtc = intel_dp->base.base.crtc; @@ -2099,25 +2102,23 @@ g4x_dp_detect(struct intel_dp *intel_dp) { struct drm_device *dev = intel_dp->base.base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t temp, bit; + uint32_t bit; switch (intel_dp->output_reg) { case DP_B: - bit = DPB_HOTPLUG_INT_STATUS; + bit = DPB_HOTPLUG_LIVE_STATUS; break; case DP_C: - bit = DPC_HOTPLUG_INT_STATUS; + bit = DPC_HOTPLUG_LIVE_STATUS; break; case DP_D: - bit = DPD_HOTPLUG_INT_STATUS; + bit = DPD_HOTPLUG_LIVE_STATUS; break; default: return connector_status_unknown; } - temp = I915_READ(PORT_HOTPLUG_STAT); - - if ((temp & bit) == 0) + if ((I915_READ(PORT_HOTPLUG_STAT) & bit) == 0) return connector_status_disconnected; return intel_dp_detect_dpcd(intel_dp); @@ -2399,16 +2400,11 @@ int intel_trans_dp_port_sel(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; - struct drm_mode_config *mode_config = &dev->mode_config; - struct drm_encoder *encoder; - - list_for_each_entry(encoder, &mode_config->encoder_list, head) { - struct intel_dp *intel_dp; + struct intel_encoder *encoder; - if (encoder->crtc != crtc) - continue; + for_each_encoder_on_crtc(dev, crtc, encoder) { + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); - intel_dp = enc_to_intel_dp(encoder); if (intel_dp->base.type == INTEL_OUTPUT_DISPLAYPORT || intel_dp->base.type == INTEL_OUTPUT_EDP) return intel_dp->output_reg; @@ -2520,19 +2516,19 @@ intel_dp_init(struct drm_device *dev, int output_reg) case DP_B: case PCH_DP_B: dev_priv->hotplug_supported_mask |= - HDMIB_HOTPLUG_INT_STATUS; + DPB_HOTPLUG_INT_STATUS; name = "DPDDC-B"; break; case DP_C: case PCH_DP_C: dev_priv->hotplug_supported_mask |= - HDMIC_HOTPLUG_INT_STATUS; + DPC_HOTPLUG_INT_STATUS; name = "DPDDC-C"; break; case DP_D: case PCH_DP_D: dev_priv->hotplug_supported_mask |= - HDMID_HOTPLUG_INT_STATUS; + DPD_HOTPLUG_INT_STATUS; name = "DPDDC-D"; break; } |