linux_dsm_epyc7002/include/sound/hda_component.h
Takashi Iwai 4f799e7340 ALSA: hda: Make snd_hdac_display_power() void function
After the recent refactoring, snd_hdac_display_power() doesn't return
any error, hence it can be defined to return void.
This makes many error checks redundant and allows us to reduce them
gracefully.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-12-11 08:18:25 +01:00

67 lines
2.0 KiB
C

// 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>
#include <sound/hdaudio.h>
/* virtual idx for controller */
#define HDA_CODEC_IDX_CONTROLLER HDA_MAX_CODECS
#ifdef CONFIG_SND_HDA_COMPONENT
int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable);
void snd_hdac_display_power(struct hdac_bus *bus, unsigned int idx,
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 void snd_hdac_display_power(struct hdac_bus *bus,
unsigned int idx, bool enable)
{
}
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 */