diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 46 |
1 files changed, 40 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4b637919f74f..71c7096e3869 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -688,7 +688,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, int lane_count, clock; int max_lane_count = intel_dp_max_lane_count(intel_dp); int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0; - int bpp; + int bpp, mode_rate; static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 }; if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) { @@ -702,24 +702,30 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, mode->clock = intel_dp->panel_fixed_mode->clock; } + 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); + if (!intel_dp_adjust_dithering(intel_dp, mode, adjusted_mode)) return false; bpp = adjusted_mode->private_flags & INTEL_MODE_DP_FORCE_6BPC ? 18 : 24; + mode_rate = intel_dp_link_required(mode->clock, bpp); for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) { for (clock = 0; clock <= max_clock; clock++) { int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count); - if (intel_dp_link_required(mode->clock, bpp) - <= link_avail) { + if (mode_rate <= link_avail) { intel_dp->link_bw = bws[clock]; intel_dp->lane_count = lane_count; adjusted_mode->clock = intel_dp_link_clock(intel_dp->link_bw); - DRM_DEBUG_KMS("Display port link bw %02x lane " - "count %d clock %d\n", + DRM_DEBUG_KMS("DP link bw %02x lane " + "count %d clock %d bpp %d\n", intel_dp->link_bw, intel_dp->lane_count, - adjusted_mode->clock); + adjusted_mode->clock, bpp); + DRM_DEBUG_KMS("DP link bw required %i available %i\n", + mode_rate, link_avail); return true; } } @@ -1149,6 +1155,7 @@ static void ironlake_edp_panel_off(struct intel_dp *intel_dp) DRM_DEBUG_KMS("Turn eDP power off\n"); WARN(intel_dp->want_panel_vdd, "Cannot turn power off while VDD is on\n"); + ironlake_panel_vdd_off_sync(intel_dp); /* finish any pending work */ pp = ironlake_get_pp_control(dev_priv); pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE); @@ -1954,6 +1961,23 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) return false; } +static void +intel_dp_probe_oui(struct intel_dp *intel_dp) +{ + u8 buf[3]; + + if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT)) + return; + + if (intel_dp_aux_native_read_retry(intel_dp, DP_SINK_OUI, buf, 3)) + DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n", + buf[0], buf[1], buf[2]); + + if (intel_dp_aux_native_read_retry(intel_dp, DP_BRANCH_OUI, buf, 3)) + DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n", + buf[0], buf[1], buf[2]); +} + static bool intel_dp_get_sink_irq(struct intel_dp *intel_dp, u8 *sink_irq_vector) { @@ -2137,6 +2161,8 @@ intel_dp_detect(struct drm_connector *connector, bool force) if (status != connector_status_connected) return status; + intel_dp_probe_oui(intel_dp); + if (intel_dp->force_audio != HDMI_AUDIO_AUTO) { intel_dp->has_audio = (intel_dp->force_audio == HDMI_AUDIO_ON); } else { @@ -2438,6 +2464,7 @@ intel_dp_init(struct drm_device *dev, int output_reg) } intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2); + connector->interlace_allowed = true; connector->doublescan_allowed = 0; @@ -2483,6 +2510,13 @@ intel_dp_init(struct drm_device *dev, int output_reg) pp_off = I915_READ(PCH_PP_OFF_DELAYS); pp_div = I915_READ(PCH_PP_DIVISOR); + if (!pp_on || !pp_off || !pp_div) { + DRM_INFO("bad panel power sequencing delays, disabling panel\n"); + intel_dp_encoder_destroy(&intel_dp->base.base); + intel_dp_destroy(&intel_connector->base); + return; + } + /* Pull timing values out of registers */ cur.t1_t3 = (pp_on & PANEL_POWER_UP_DELAY_MASK) >> PANEL_POWER_UP_DELAY_SHIFT; |