|  | /* | 
|  | * HD-Audio helpers to sync with i915 driver | 
|  | */ | 
|  | #ifndef __SOUND_HDA_I915_H | 
|  | #define __SOUND_HDA_I915_H | 
|  |  | 
|  | #include <drm/i915_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; | 
|  | } | 
|  | static inline int snd_hdac_i915_exit(struct hdac_bus *bus) | 
|  | { | 
|  | return 0; | 
|  | } | 
|  | static inline int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *ops) | 
|  | { | 
|  | return -ENODEV; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #endif /* __SOUND_HDA_I915_H */ |