drm/i915: add per-output hotplug callback for KMS

This allows each output to deal with plug/unplug events as needed.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index b86b7b7..228546f 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -232,7 +232,17 @@ static void i915_hotplug_work_func(struct work_struct *work)
        drm_i915_private_t *dev_priv = container_of(work, drm_i915_private_t,
                                                    hotplug_work);
        struct drm_device *dev = dev_priv->dev;
-
+       struct drm_mode_config *mode_config = &dev->mode_config;
+       struct drm_connector *connector;
+
+       if (mode_config->num_connector) {
+               list_for_each_entry(connector, &mode_config->connector_list, head) {
+                       struct intel_output *intel_output = to_intel_output(connector);
+       
+                       if (intel_output->hot_plug)
+                               (*intel_output->hot_plug) (intel_output);
+               }
+       }
        /* Just fire off a uevent and let userspace tell us what to do */
        drm_sysfs_hotplug_event(dev);
 }

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d89a2fe..c585879 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -83,6 +83,7 @@ struct intel_output {
        bool load_detect_temp;
        bool needs_tv_clock;
        void *dev_priv;
+       void (*hot_plug)(struct intel_output *);
 };
 
 struct intel_crtc {