Merge tag 'drm-intel-next-2015-12-18' of git://anongit.freedesktop.org/drm-intel...

[cascardo/linux.git] / drivers / gpu / drm / i915 / intel_dp_mst.c

diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 0639275..e2f515d 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -78,6 +78,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
                return false;
        }
 
+       if (drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, found->port))
+               pipe_config->has_audio = true;
        mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp);
 
        pipe_config->pbn = mst_pbn;
@@ -102,6 +104,11 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder)
        struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
        struct intel_digital_port *intel_dig_port = intel_mst->primary;
        struct intel_dp *intel_dp = &intel_dig_port->dp;
+       struct drm_device *dev = encoder->base.dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct drm_crtc *crtc = encoder->base.crtc;
+       struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
        int ret;
 
        DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
@@ -112,6 +119,10 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder)
        if (ret) {
                DRM_ERROR("failed to update payload %d\n", ret);
        }
+       if (intel_crtc->config->has_audio) {
+               intel_audio_codec_disable(encoder);
+               intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
+       }
 }
 
 static void intel_mst_post_disable_dp(struct intel_encoder *encoder)
@@ -173,20 +184,14 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder)
        intel_mst->port = found->port;
 
        if (intel_dp->active_mst_links == 0) {
-               enum port port = intel_ddi_get_encoder_port(encoder);
+               intel_ddi_clk_select(encoder, intel_crtc->config);
 
                intel_dp_set_link_params(intel_dp, intel_crtc->config);
 
-               /* FIXME: add support for SKL */
-               if (INTEL_INFO(dev)->gen < 9)
-                       I915_WRITE(PORT_CLK_SEL(port),
-                                  intel_crtc->config->ddi_pll_sel);
-
                intel_ddi_init_dp_buf_reg(&intel_dig_port->base);
 
                intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
 
-
                intel_dp_start_link_train(intel_dp);
                intel_dp_stop_link_train(intel_dp);
        }
@@ -214,6 +219,7 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder)
        struct intel_dp *intel_dp = &intel_dig_port->dp;
        struct drm_device *dev = intel_dig_port->base.base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
+       struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
        enum port port = intel_dig_port->port;
        int ret;
 
@@ -226,6 +232,13 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder)
        ret = drm_dp_check_act_status(&intel_dp->mst_mgr);
 
        ret = drm_dp_update_payload_part2(&intel_dp->mst_mgr);
+
+       if (crtc->config->has_audio) {
+               DRM_DEBUG_DRIVER("Enabling DP audio on pipe %c\n",
+                                pipe_name(crtc->pipe));
+               intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
+               intel_audio_codec_enable(encoder);
+       }
 }
 
 static bool intel_dp_mst_enc_get_hw_state(struct intel_encoder *encoder,
@@ -251,6 +264,9 @@ static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder,
 
        pipe_config->has_dp_encoder = true;
 
+       pipe_config->has_audio =
+               intel_ddi_is_audio_enabled(dev_priv, crtc);
+
        temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
        if (temp & TRANS_DDI_PHSYNC)
                flags |= DRM_MODE_FLAG_PHSYNC;
@@ -414,7 +430,10 @@ static void intel_connector_add_to_fbdev(struct intel_connector *connector)
 {
 #ifdef CONFIG_DRM_FBDEV_EMULATION
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
-       drm_fb_helper_add_one_connector(&dev_priv->fbdev->helper, &connector->base);
+
+       if (dev_priv->fbdev)
+               drm_fb_helper_add_one_connector(&dev_priv->fbdev->helper,
+                                               &connector->base);
 #endif
 }
 
@@ -422,7 +441,10 @@ static void intel_connector_remove_from_fbdev(struct intel_connector *connector)
 {
 #ifdef CONFIG_DRM_FBDEV_EMULATION
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
-       drm_fb_helper_remove_one_connector(&dev_priv->fbdev->helper, &connector->base);
+
+       if (dev_priv->fbdev)
+               drm_fb_helper_remove_one_connector(&dev_priv->fbdev->helper,
+                                                  &connector->base);
 #endif
 }
 
@@ -536,7 +558,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum
        intel_mst->primary = intel_dig_port;
 
        drm_encoder_init(dev, &intel_encoder->base, &intel_dp_mst_enc_funcs,
-                        DRM_MODE_ENCODER_DPMST);
+                        DRM_MODE_ENCODER_DPMST, NULL);
 
        intel_encoder->type = INTEL_OUTPUT_DP_MST;
        intel_encoder->crtc_mask = 0x7;