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Commit e581f3db authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Add post_suspend patch ops 



Add a new ops, post_suspend(), which is called after suspend() ops is
performed.  This is called only in the case of the real PM suspend, and
the codec driver can use this for further changing of D-state or
clearing the LED, etc.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 2a43952a

sound/pci/hda/hda_codec.c

+8 −10
Original line number Diff line number Diff line
@@ -91,8 +91,10 @@ EXPORT_SYMBOL_HDA(snd_hda_delete_codec_preset); 
#ifdef CONFIG_SND_HDA_POWER_SAVE

static void hda_power_work(struct work_struct *work);

static void hda_keep_power_on(struct hda_codec *codec);

#define hda_codec_is_power_on(codec)	((codec)->power_on)

#else

static inline void hda_keep_power_on(struct hda_codec *codec) {}

#define hda_codec_is_power_on(codec)	1

#endif



/**
@@ -4376,11 +4378,8 @@ void snd_hda_bus_reboot_notify(struct hda_bus *bus) 
	if (!bus)

		return;

	list_for_each_entry(codec, &bus->codec_list, list) {

#ifdef CONFIG_SND_HDA_POWER_SAVE

		if (!codec->power_on)

			continue;

#endif

		if (codec->patch_ops.reboot_notify)

		if (hda_codec_is_power_on(codec) &&

		    codec->patch_ops.reboot_notify)

			codec->patch_ops.reboot_notify(codec);

	}

}
@@ -5079,11 +5078,10 @@ int snd_hda_suspend(struct hda_bus *bus) 
	struct hda_codec *codec;



	list_for_each_entry(codec, &bus->codec_list, list) {

#ifdef CONFIG_SND_HDA_POWER_SAVE

		if (!codec->power_on)

			continue;

#endif

		if (hda_codec_is_power_on(codec))

			hda_call_codec_suspend(codec);

		if (codec->patch_ops.post_suspend)

			codec->patch_ops.post_suspend(codec);

	}

	return 0;

}

sound/pci/hda/hda_codec.h

+1 −0
Original line number Diff line number Diff line
@@ -702,6 +702,7 @@ struct hda_codec_ops { 
	void (*unsol_event)(struct hda_codec *codec, unsigned int res);

#ifdef CONFIG_PM

	int (*suspend)(struct hda_codec *codec, pm_message_t state);

	int (*post_suspend)(struct hda_codec *codec);

	int (*pre_resume)(struct hda_codec *codec);

	int (*resume)(struct hda_codec *codec);

#endif