diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 144 |
1 files changed, 95 insertions, 49 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 143d19c26752..c59710db653e 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1248,10 +1248,57 @@ static void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode) } } -static void intel_dp_prepare(struct drm_encoder *encoder) +static bool intel_dp_get_hw_state(struct intel_encoder *encoder, + enum pipe *pipe) { - struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + u32 tmp = I915_READ(intel_dp->output_reg); + + if (!(tmp & DP_PORT_EN)) + return false; + if (is_cpu_edp(intel_dp) && IS_GEN7(dev)) { + *pipe = PORT_TO_PIPE_CPT(tmp); + } else if (!HAS_PCH_CPT(dev) || is_cpu_edp(intel_dp)) { + *pipe = PORT_TO_PIPE(tmp); + } else { + u32 trans_sel; + u32 trans_dp; + int i; + + switch (intel_dp->output_reg) { + case PCH_DP_B: + trans_sel = TRANS_DP_PORT_SEL_B; + break; + case PCH_DP_C: + trans_sel = TRANS_DP_PORT_SEL_C; + break; + case PCH_DP_D: + trans_sel = TRANS_DP_PORT_SEL_D; + break; + default: + return true; + } + + for_each_pipe(i) { + trans_dp = I915_READ(TRANS_DP_CTL(i)); + if ((trans_dp & TRANS_DP_PORT_SEL_MASK) == trans_sel) { + *pipe = i; + return true; + } + } + } + + DRM_DEBUG_KMS("No pipe for dp port 0x%x found\n", intel_dp->output_reg); + + return true; +} + +static void intel_disable_dp(struct intel_encoder *encoder) +{ + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); /* Make sure the panel is off before trying to change the mode. But also * ensure that we have vdd while we switch off the panel. */ @@ -1262,60 +1309,58 @@ static void intel_dp_prepare(struct drm_encoder *encoder) intel_dp_link_down(intel_dp); } -static void intel_dp_commit(struct drm_encoder *encoder) +static void intel_enable_dp(struct intel_encoder *encoder) { - struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - struct drm_device *dev = encoder->dev; - struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc); + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base); + struct drm_device *dev = encoder->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t dp_reg = I915_READ(intel_dp->output_reg); ironlake_edp_panel_vdd_on(intel_dp); intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON); - intel_dp_start_link_train(intel_dp); - ironlake_edp_panel_on(intel_dp); - ironlake_edp_panel_vdd_off(intel_dp, true); - intel_dp_complete_link_train(intel_dp); + if (!(dp_reg & DP_PORT_EN)) { + intel_dp_start_link_train(intel_dp); + ironlake_edp_panel_on(intel_dp); + ironlake_edp_panel_vdd_off(intel_dp, true); + intel_dp_complete_link_train(intel_dp); + } else + ironlake_edp_panel_vdd_off(intel_dp, false); ironlake_edp_backlight_on(intel_dp); - - intel_dp->dpms_mode = DRM_MODE_DPMS_ON; - - if (HAS_PCH_CPT(dev)) - intel_cpt_verify_modeset(dev, intel_crtc->pipe); } static void -intel_dp_dpms(struct drm_encoder *encoder, int mode) +intel_dp_dpms(struct drm_connector *connector, int mode) { - struct intel_dp *intel_dp = enc_to_intel_dp(encoder); - struct drm_device *dev = encoder->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t dp_reg = I915_READ(intel_dp->output_reg); + struct intel_dp *intel_dp = intel_attached_dp(connector); + + /* DP supports only 2 dpms states. */ + if (mode != DRM_MODE_DPMS_ON) + mode = DRM_MODE_DPMS_OFF; + + if (mode == connector->dpms) + return; + + connector->dpms = mode; + + /* Only need to change hw state when actually enabled */ + if (!intel_dp->base.base.crtc) { + intel_dp->base.connectors_active = false; + return; + } if (mode != DRM_MODE_DPMS_ON) { - /* Switching the panel off requires vdd. */ - ironlake_edp_panel_vdd_on(intel_dp); - ironlake_edp_backlight_off(intel_dp); - intel_dp_sink_dpms(intel_dp, mode); - ironlake_edp_panel_off(intel_dp); - intel_dp_link_down(intel_dp); + intel_encoder_dpms(&intel_dp->base, mode); if (is_cpu_edp(intel_dp)) - ironlake_edp_pll_off(encoder); + ironlake_edp_pll_off(&intel_dp->base.base); } else { if (is_cpu_edp(intel_dp)) - ironlake_edp_pll_on(encoder); + ironlake_edp_pll_on(&intel_dp->base.base); - ironlake_edp_panel_vdd_on(intel_dp); - intel_dp_sink_dpms(intel_dp, mode); - if (!(dp_reg & DP_PORT_EN)) { - intel_dp_start_link_train(intel_dp); - ironlake_edp_panel_on(intel_dp); - ironlake_edp_panel_vdd_off(intel_dp, true); - intel_dp_complete_link_train(intel_dp); - } else - ironlake_edp_panel_vdd_off(intel_dp, false); - ironlake_edp_backlight_on(intel_dp); + intel_encoder_dpms(&intel_dp->base, mode); } - intel_dp->dpms_mode = mode; + + intel_modeset_check_state(connector->dev); } /* @@ -2016,10 +2061,10 @@ intel_dp_check_link_status(struct intel_dp *intel_dp) u8 sink_irq_vector; u8 link_status[DP_LINK_STATUS_SIZE]; - if (intel_dp->dpms_mode != DRM_MODE_DPMS_ON) + if (!intel_dp->base.connectors_active) return; - if (!intel_dp->base.base.crtc) + if (WARN_ON(!intel_dp->base.base.crtc)) return; /* Try to read receiver status if the link appears to be up */ @@ -2305,9 +2350,8 @@ intel_dp_set_property(struct drm_connector *connector, done: if (intel_dp->base.base.crtc) { struct drm_crtc *crtc = intel_dp->base.base.crtc; - drm_crtc_helper_set_mode(crtc, &crtc->mode, - crtc->x, crtc->y, - crtc->fb); + intel_set_mode(crtc, &crtc->mode, + crtc->x, crtc->y, crtc->fb); } return 0; @@ -2341,15 +2385,13 @@ static void intel_dp_encoder_destroy(struct drm_encoder *encoder) } static const struct drm_encoder_helper_funcs intel_dp_helper_funcs = { - .dpms = intel_dp_dpms, .mode_fixup = intel_dp_mode_fixup, - .prepare = intel_dp_prepare, .mode_set = intel_dp_mode_set, - .commit = intel_dp_commit, + .disable = intel_encoder_noop, }; static const struct drm_connector_funcs intel_dp_connector_funcs = { - .dpms = drm_helper_connector_dpms, + .dpms = intel_dp_dpms, .detect = intel_dp_detect, .fill_modes = drm_helper_probe_single_connector_modes, .set_property = intel_dp_set_property, @@ -2436,7 +2478,6 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port) intel_dp->output_reg = output_reg; intel_dp->port = port; - intel_dp->dpms_mode = -1; intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL); if (!intel_connector) { @@ -2480,6 +2521,11 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port) intel_connector_attach_encoder(intel_connector, intel_encoder); drm_sysfs_connector_add(connector); + intel_encoder->enable = intel_enable_dp; + intel_encoder->disable = intel_disable_dp; + intel_encoder->get_hw_state = intel_dp_get_hw_state; + intel_connector->get_hw_state = intel_connector_get_hw_state; + /* Set up the DDC bus. */ switch (port) { case PORT_A: |
