[alsa-devel] [PATCH 1/4] drm/i915: Add audio hotplug info struct

[David Henningsson]

This struct will be used to transfer information from the i915
driver to the hda driver on HDMI hotplug events.

Signed-off-by: David Henningsson <david.henningsson at canonical.com>
---
 include/drm/i915_component.h |   19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
index c9a8b64..4fc0db3 100644
--- a/include/drm/i915_component.h
+++ b/include/drm/i915_component.h
@@ -24,8 +24,22 @@
 #ifndef _I915_COMPONENT_H_
 #define _I915_COMPONENT_H_
 
+struct hdac_bus;
+
+struct i915_audio_hotplug_info {
+	int connector_type; /* DRM_MODE_CONNECTOR_*, meant for userspace */
+	int connector_type_id; /* Index within a DRM_MODE_CONNECTOR_* type, meant for userspace */
+	int port; /* Used for mapping to affected nid */
+	int port_multi_stream_device; /* For DP multi-streaming */
+
+	bool plugged_in;
+	uint8_t *eld;
+	int eld_size;
+};
+
 struct i915_audio_component {
 	struct device *dev;
+	struct hdac_bus *hdac_bus;
 
 	const struct i915_audio_component_ops {
 		struct module *owner;
@@ -34,6 +48,11 @@ struct i915_audio_component {
 		void (*codec_wake_override)(struct device *, bool enable);
 		int (*get_cdclk_freq)(struct device *);
 	} *ops;
+
+	const struct i915_audio_component_cb_ops {
+		struct module *owner;
+		void (*hotplug_notify)(struct hdac_bus *, const struct i915_audio_hotplug_info *);
+	} *cb_ops;
 };
 
 #endif /* _I915_COMPONENT_H_ */
-- 
1.7.9.5