Linux Audio
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Embedded Linux Audio
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/* * 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); int snd_hdac_get_display_clk(struct hdac_bus *bus); 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 int snd_hdac_get_display_clk(struct hdac_bus *bus) { return 0; } 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 */