Merge branch 'topic/drm_audio_component' into for-next

Pull the generic drm_audio_component support, which will be used later
for AMD/ATI and other HD-audio HDMI codec drivers.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

5 files changed, 190 insertions, 117 deletions

diff --git a/include/drm/drm_audio_component.h b/include/drm/drm_audio_component.h
new file mode 100644
index 000000000000..4923b00328c1
--- /dev/null
+++ b/include/drm/drm_audio_component.h
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: MIT
+// Copyright © 2014 Intel Corporation
+
+#ifndef _DRM_AUDIO_COMPONENT_H_
+#define _DRM_AUDIO_COMPONENT_H_
+
+struct drm_audio_component;
+
+/**
+ * struct drm_audio_component_ops - Ops implemented by DRM driver, called by hda driver
+ */
+struct drm_audio_component_ops {
+	/**
+	 * @owner: drm module to pin down
+	 */
+	struct module *owner;
+	/**
+	 * @get_power: get the POWER_DOMAIN_AUDIO power well
+	 *
+	 * Request the power well to be turned on.
+	 */
+	void (*get_power)(struct device *);
+	/**
+	 * @put_power: put the POWER_DOMAIN_AUDIO power well
+	 *
+	 * Allow the power well to be turned off.
+	 */
+	void (*put_power)(struct device *);
+	/**
+	 * @codec_wake_override: Enable/disable codec wake signal
+	 */
+	void (*codec_wake_override)(struct device *, bool enable);
+	/**
+	 * @get_cdclk_freq: Get the Core Display Clock in kHz
+	 */
+	int (*get_cdclk_freq)(struct device *);
+	/**
+	 * @sync_audio_rate: set n/cts based on the sample rate
+	 *
+	 * Called from audio driver. After audio driver sets the
+	 * sample rate, it will call this function to set n/cts
+	 */
+	int (*sync_audio_rate)(struct device *, int port, int pipe, int rate);
+	/**
+	 * @get_eld: fill the audio state and ELD bytes for the given port
+	 *
+	 * Called from audio driver to get the HDMI/DP audio state of the given
+	 * digital port, and also fetch ELD bytes to the given pointer.
+	 *
+	 * It returns the byte size of the original ELD (not the actually
+	 * copied size), zero for an invalid ELD, or a negative error code.
+	 *
+	 * Note that the returned size may be over @max_bytes.  Then it
+	 * implies that only a part of ELD has been copied to the buffer.
+	 */
+	int (*get_eld)(struct device *, int port, int pipe, bool *enabled,
+		       unsigned char *buf, int max_bytes);
+};
+
+/**
+ * struct drm_audio_component_audio_ops - Ops implemented by hda driver, called by DRM driver
+ */
+struct drm_audio_component_audio_ops {
+	/**
+	 * @audio_ptr: Pointer to be used in call to pin_eld_notify
+	 */
+	void *audio_ptr;
+	/**
+	 * @pin_eld_notify: Notify the HDA driver that pin sense and/or ELD information has changed
+	 *
+	 * Called when the DRM driver has set up audio pipeline or has just
+	 * begun to tear it down. This allows the HDA driver to update its
+	 * status accordingly (even when the HDA controller is in power save
+	 * mode).
+	 */
+	void (*pin_eld_notify)(void *audio_ptr, int port, int pipe);
+	/**
+	 * @pin2port: Check and convert from pin node to port number
+	 *
+	 * Called by HDA driver to check and convert from the pin widget node
+	 * number to a port number in the graphics side.
+	 */
+	int (*pin2port)(void *audio_ptr, int pin);
+	/**
+	 * @master_bind: (Optional) component master bind callback
+	 *
+	 * Called at binding master component, for HDA codec-specific
+	 * handling of dynamic binding.
+	 */
+	int (*master_bind)(struct device *dev, struct drm_audio_component *);
+	/**
+	 * @master_unbind: (Optional) component master unbind callback
+	 *
+	 * Called at unbinding master component, for HDA codec-specific
+	 * handling of dynamic unbinding.
+	 */
+	void (*master_unbind)(struct device *dev, struct drm_audio_component *);
+};
+
+/**
+ * struct drm_audio_component - Used for direct communication between DRM and hda drivers
+ */
+struct drm_audio_component {
+	/**
+	 * @dev: DRM device, used as parameter for ops
+	 */
+	struct device *dev;
+	/**
+	 * @ops: Ops implemented by DRM driver, called by hda driver
+	 */
+	const struct drm_audio_component_ops *ops;
+	/**
+	 * @audio_ops: Ops implemented by hda driver, called by DRM driver
+	 */
+	const struct drm_audio_component_audio_ops *audio_ops;
+};
+
+#endif /* _DRM_AUDIO_COMPONENT_H_ */
diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h
index 346b1f5cb180..fca22d463e1b 100644
--- a/include/drm/i915_component.h
+++ b/include/drm/i915_component.h
@@ -24,101 +24,26 @@
 #ifndef _I915_COMPONENT_H_
 #define _I915_COMPONENT_H_
 
+#include "drm_audio_component.h"
+
 /* MAX_PORT is the number of port
  * It must be sync with I915_MAX_PORTS defined i915_drv.h
  */
 #define MAX_PORTS 6
 
 /**
- * struct i915_audio_component_ops - Ops implemented by i915 driver, called by hda driver
- */
-struct i915_audio_component_ops {
-	/**
-	 * @owner: i915 module
-	 */
-	struct module *owner;
-	/**
-	 * @get_power: get the POWER_DOMAIN_AUDIO power well
-	 *
-	 * Request the power well to be turned on.
-	 */
-	void (*get_power)(struct device *);
-	/**
-	 * @put_power: put the POWER_DOMAIN_AUDIO power well
-	 *
-	 * Allow the power well to be turned off.
-	 */
-	void (*put_power)(struct device *);
-	/**
-	 * @codec_wake_override: Enable/disable codec wake signal
-	 */
-	void (*codec_wake_override)(struct device *, bool enable);
-	/**
-	 * @get_cdclk_freq: Get the Core Display Clock in kHz
-	 */
-	int (*get_cdclk_freq)(struct device *);
-	/**
-	 * @sync_audio_rate: set n/cts based on the sample rate
-	 *
-	 * Called from audio driver. After audio driver sets the
-	 * sample rate, it will call this function to set n/cts
-	 */
-	int (*sync_audio_rate)(struct device *, int port, int pipe, int rate);
-	/**
-	 * @get_eld: fill the audio state and ELD bytes for the given port
-	 *
-	 * Called from audio driver to get the HDMI/DP audio state of the given
-	 * digital port, and also fetch ELD bytes to the given pointer.
-	 *
-	 * It returns the byte size of the original ELD (not the actually
-	 * copied size), zero for an invalid ELD, or a negative error code.
-	 *
-	 * Note that the returned size may be over @max_bytes.  Then it
-	 * implies that only a part of ELD has been copied to the buffer.
-	 */
-	int (*get_eld)(struct device *, int port, int pipe, bool *enabled,
-		       unsigned char *buf, int max_bytes);
-};
-
-/**
- * struct i915_audio_component_audio_ops - Ops implemented by hda driver, called by i915 driver
- */
-struct i915_audio_component_audio_ops {
-	/**
-	 * @audio_ptr: Pointer to be used in call to pin_eld_notify
-	 */
-	void *audio_ptr;
-	/**
-	 * @pin_eld_notify: Notify the HDA driver that pin sense and/or ELD information has changed
-	 *
-	 * Called when the i915 driver has set up audio pipeline or has just
-	 * begun to tear it down. This allows the HDA driver to update its
-	 * status accordingly (even when the HDA controller is in power save
-	 * mode).
-	 */
-	void (*pin_eld_notify)(void *audio_ptr, int port, int pipe);
-};
-
-/**
  * struct i915_audio_component - Used for direct communication between i915 and hda drivers
  */
 struct i915_audio_component {
 	/**
-	 * @dev: i915 device, used as parameter for ops
+	 * @base: the drm_audio_component base class
 	 */
-	struct device *dev;
+	struct drm_audio_component	base;
+
 	/**
 	 * @aud_sample_rate: the array of audio sample rate per port
 	 */
 	int aud_sample_rate[MAX_PORTS];
-	/**
-	 * @ops: Ops implemented by i915 driver, called by hda driver
-	 */
-	const struct i915_audio_component_ops *ops;
-	/**
-	 * @audio_ops: Ops implemented by hda driver, called by i915 driver
-	 */
-	const struct i915_audio_component_audio_ops *audio_ops;
 };
 
 #endif /* _I915_COMPONENT_H_ */
diff --git a/include/sound/hda_component.h b/include/sound/hda_component.h
new file mode 100644
index 000000000000..78626cde7081
--- /dev/null
+++ b/include/sound/hda_component.h
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+// HD-Audio helpers to sync with DRM driver
+
+#ifndef __SOUND_HDA_COMPONENT_H
+#define __SOUND_HDA_COMPONENT_H
+
+#include <drm/drm_audio_component.h>
+
+#ifdef CONFIG_SND_HDA_COMPONENT
+int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
+int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
+int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
+			     int dev_id, int rate);
+int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
+			   bool *audio_enabled, char *buffer, int max_bytes);
+int snd_hdac_acomp_init(struct hdac_bus *bus,
+			const struct drm_audio_component_audio_ops *aops,
+			int (*match_master)(struct device *, void *),
+			size_t extra_size);
+int snd_hdac_acomp_exit(struct hdac_bus *bus);
+int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
+				    const struct drm_audio_component_audio_ops *ops);
+#else
+static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
+{
+	return 0;
+}
+static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
+{
+	return 0;
+}
+static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
+					   hda_nid_t nid, int dev_id, int rate)
+{
+	return 0;
+}
+static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
+					 int dev_id, bool *audio_enabled,
+					 char *buffer, int max_bytes)
+{
+	return -ENODEV;
+}
+static inline int snd_hdac_acomp_init(struct hdac_bus *bus,
+				      const struct drm_audio_component_audio_ops *aops,
+				      int (*match_master)(struct device *, void *),
+				      size_t extra_size)
+{
+	return -ENODEV;
+}
+static inline int snd_hdac_acomp_exit(struct hdac_bus *bus)
+{
+	return 0;
+}
+static inline int snd_hdac_acomp_register_notifier(struct hdac_bus *bus,
+						  const struct drm_audio_component_audio_ops *ops)
+{
+	return -ENODEV;
+}
+#endif
+
+#endif /* __SOUND_HDA_COMPONENT_H */
diff --git a/include/sound/hda_i915.h b/include/sound/hda_i915.h
index a94f5b6f92ac..6b79614a893b 100644
--- a/include/sound/hda_i915.h
+++ b/include/sound/hda_i915.h
@@ -5,54 +5,23 @@
 #ifndef __SOUND_HDA_I915_H
 #define __SOUND_HDA_I915_H
 
-#include <drm/i915_component.h>
+#include "hda_component.h"
 
 #ifdef CONFIG_SND_HDA_I915
-int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
-int snd_hdac_display_power(struct hdac_bus *bus, bool enable);
 void snd_hdac_i915_set_bclk(struct hdac_bus *bus);
-int snd_hdac_sync_audio_rate(struct hdac_device *codec, hda_nid_t nid,
-			     int dev_id, int rate);
-int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id,
-			   bool *audio_enabled, char *buffer, int max_bytes);
 int snd_hdac_i915_init(struct hdac_bus *bus);
-int snd_hdac_i915_exit(struct hdac_bus *bus);
-int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
 #else
-static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
-{
-	return 0;
-}
-static inline int snd_hdac_display_power(struct hdac_bus *bus, bool enable)
-{
-	return 0;
-}
 static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus)
 {
 }
-static inline int snd_hdac_sync_audio_rate(struct hdac_device *codec,
-					   hda_nid_t nid, int dev_id, int rate)
-{
-	return 0;
-}
-static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid,
-					 int dev_id, bool *audio_enabled,
-					 char *buffer, int max_bytes)
-{
-	return -ENODEV;
-}
 static inline int snd_hdac_i915_init(struct hdac_bus *bus)
 {
 	return -ENODEV;
 }
+#endif
 static inline int snd_hdac_i915_exit(struct hdac_bus *bus)
 {
-	return 0;
+	return snd_hdac_acomp_exit(bus);
 }
-static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops)
-{
-	return -ENODEV;
-}
-#endif
 
 #endif /* __SOUND_HDA_I915_H */
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 21abc4da2549..8305e7971035 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -360,9 +360,9 @@ struct hdac_bus {
 	spinlock_t reg_lock;
 	struct mutex cmd_mutex;
 
-	/* i915 component interface */
-	struct i915_audio_component *audio_component;
-	int i915_power_refcount;
+	/* DRM component interface */
+	struct drm_audio_component *audio_component;
+	int drm_power_refcount;
 
 	/* parameters required for enhanced capabilities */
 	int num_streams;