Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...

[karo-tx-linux.git] / drivers / gpu / drm / i915 / intel_sdvo.c

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 0e03985b0fe4c8638170409e2ecfd2a10268f270..c275bf0fa36db86a09d861a7e17457c2c103dd4e 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -2251,7 +2251,6 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
                connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
                intel_sdvo->is_hdmi = true;
        }
-       intel_sdvo->base.cloneable = true;
 
        intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
        if (intel_sdvo->is_hdmi)
@@ -2282,7 +2281,6 @@ intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
 
        intel_sdvo->is_tv = true;
        intel_sdvo->base.needs_tv_clock = true;
-       intel_sdvo->base.cloneable = false;
 
        intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
 
@@ -2325,8 +2323,6 @@ intel_sdvo_analog_init(struct intel_sdvo *intel_sdvo, int device)
                intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
        }
 
-       intel_sdvo->base.cloneable = true;
-
        intel_sdvo_connector_init(intel_sdvo_connector,
                                  intel_sdvo);
        return true;
@@ -2357,9 +2353,6 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
                intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
        }
 
-       /* SDVO LVDS is not cloneable because the input mode gets adjusted by the encoder */
-       intel_sdvo->base.cloneable = false;
-
        intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
        if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
                goto err;
@@ -2432,6 +2425,18 @@ intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
        return true;
 }
 
+static void intel_sdvo_output_cleanup(struct intel_sdvo *intel_sdvo)
+{
+       struct drm_device *dev = intel_sdvo->base.base.dev;
+       struct drm_connector *connector, *tmp;
+
+       list_for_each_entry_safe(connector, tmp,
+                                &dev->mode_config.connector_list, head) {
+               if (intel_attached_encoder(connector) == &intel_sdvo->base)
+                       intel_sdvo_destroy(connector);
+       }
+}
+
 static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
                                          struct intel_sdvo_connector *intel_sdvo_connector,
                                          int type)
@@ -2753,9 +2758,20 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
                                    intel_sdvo->caps.output_flags) != true) {
                DRM_DEBUG_KMS("SDVO output failed to setup on %s\n",
                              SDVO_NAME(intel_sdvo));
-               goto err;
+               /* Output_setup can leave behind connectors! */
+               goto err_output;
        }
 
+       /*
+        * Cloning SDVO with anything is often impossible, since the SDVO
+        * encoder can request a special input timing mode. And even if that's
+        * not the case we have evidence that cloning a plain unscaled mode with
+        * VGA doesn't really work. Furthermore the cloning flags are way too
+        * simplistic anyway to express such constraints, so just give up on
+        * cloning for SDVO encoders.
+        */
+       intel_sdvo->base.cloneable = false;
+
        /* Only enable the hotplug irq if we need it, to work around noisy
         * hotplug lines.
         */
@@ -2766,12 +2782,12 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
 
        /* Set the input timing to the screen. Assume always input 0. */
        if (!intel_sdvo_set_target_input(intel_sdvo))
-               goto err;
+               goto err_output;
 
        if (!intel_sdvo_get_input_pixel_clock_range(intel_sdvo,
                                                    &intel_sdvo->pixel_clock_min,
                                                    &intel_sdvo->pixel_clock_max))
-               goto err;
+               goto err_output;
 
        DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
                        "clock range %dMHz - %dMHz, "
@@ -2791,6 +2807,9 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
                        (SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
        return true;
 
+err_output:
+       intel_sdvo_output_cleanup(intel_sdvo);
+
 err:
        drm_encoder_cleanup(&intel_encoder->base);
        i2c_del_adapter(&intel_sdvo->ddc);