ALSA: hda - Allow codec-specific set_power_state ops
The procedure for codec D-state change may have exceptional cases
depending on the codec chip, such as a longer delay or suppressing D3.
This patch adds a new codec ops, set_power_state() to override the system
default function. For ease of porting, snd_hda_codec_set_power_to_all()
helper function is extracted from the default set_power_state() function.
As an example, the Conexant codec-specific delay is removed from the
default routine but moved to patch_conexant.c.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index c7ca753..755f2b0 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -700,6 +700,8 @@
int (*init)(struct hda_codec *codec);
void (*free)(struct hda_codec *codec);
void (*unsol_event)(struct hda_codec *codec, unsigned int res);
+ void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
+ unsigned int power_state);
#ifdef CONFIG_PM
int (*suspend)(struct hda_codec *codec, pm_message_t state);
int (*post_suspend)(struct hda_codec *codec);
@@ -1006,6 +1008,9 @@
*/
void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
void snd_hda_bus_reboot_notify(struct hda_bus *bus);
+void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
+ unsigned int power_state,
+ bool eapd_workaround);
/*
* power management