ALSA: hda: Nuke unused reboot_notify callback

As reboot_notify callback is no longer used by the codec core, let's
get rid of the unused code.  Conexant codec needs a slight code change
as it used to call the reboot_notify at the codec removal, too.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214045
Link: https://lore.kernel.org/r/20210813081230.4268-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/hda_codec.h

@@ -114,7 +114,6 @@ struct hda_codec_ops {
 	int (*resume)(struct hda_codec *codec);
 	int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 #endif
-	void (*reboot_notify)(struct hda_codec *codec);
 	void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on);
 };
 

sound/pci/hda/hda_generic.c

@@ -6000,24 +6000,6 @@ void snd_hda_gen_free(struct hda_codec *codec)
 }
 EXPORT_SYMBOL_GPL(snd_hda_gen_free);
 
-/**
- * snd_hda_gen_reboot_notify - Make codec enter D3 before rebooting
- * @codec: the HDA codec
- *
- * This can be put as patch_ops reboot_notify function.
- */
-void snd_hda_gen_reboot_notify(struct hda_codec *codec)
-{
-	/* Make the codec enter D3 to avoid spurious noises from the internal
-	 * speaker during (and after) reboot
-	 */
-	snd_hda_codec_set_power_to_all(codec, codec->core.afg, AC_PWRST_D3);
-	snd_hda_codec_write(codec, codec->core.afg, 0,
-			    AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
-	msleep(10);
-}
-EXPORT_SYMBOL_GPL(snd_hda_gen_reboot_notify);
-
 #ifdef CONFIG_PM
 /**
  * snd_hda_gen_check_power_status - check the loopback power save state
@@ -6045,7 +6027,6 @@ static const struct hda_codec_ops generic_patch_ops = {
 	.init = snd_hda_gen_init,
 	.free = snd_hda_gen_free,
 	.unsol_event = snd_hda_jack_unsol_event,
-	.reboot_notify = snd_hda_gen_reboot_notify,
 #ifdef CONFIG_PM
 	.check_power_status = snd_hda_gen_check_power_status,
 #endif

sound/pci/hda/hda_generic.h

@@ -324,7 +324,6 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec,
 				  struct auto_pin_cfg *cfg);
 int snd_hda_gen_build_controls(struct hda_codec *codec);
 int snd_hda_gen_build_pcms(struct hda_codec *codec);
-void snd_hda_gen_reboot_notify(struct hda_codec *codec);
 
 /* standard jack event callbacks */
 void snd_hda_gen_hp_automute(struct hda_codec *codec,

sound/pci/hda/patch_analog.c

@@ -168,7 +168,6 @@ static const struct hda_codec_ops ad198x_auto_patch_ops = {
 	.check_power_status = snd_hda_gen_check_power_status,
 	.suspend = ad198x_suspend,
 #endif
-	.reboot_notify = ad198x_shutup,
 };
 
 

sound/pci/hda/patch_ca0132.c

@@ -9682,11 +9682,6 @@ static void dbpro_free(struct hda_codec *codec)
 	kfree(codec->spec);
 }
 
-static void ca0132_reboot_notify(struct hda_codec *codec)
-{
-	codec->patch_ops.free(codec);
-}
-
 #ifdef CONFIG_PM
 static int ca0132_suspend(struct hda_codec *codec)
 {
@@ -9706,7 +9701,6 @@ static const struct hda_codec_ops ca0132_patch_ops = {
 #ifdef CONFIG_PM
 	.suspend = ca0132_suspend,
 #endif
-	.reboot_notify = ca0132_reboot_notify,
 };
 
 static const struct hda_codec_ops dbpro_patch_ops = {

sound/pci/hda/patch_conexant.c

@@ -186,15 +186,9 @@ static void cx_auto_shutdown(struct hda_codec *codec)
 	cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, false);
 }
 
-static void cx_auto_reboot_notify(struct hda_codec *codec)
-{
-	cx_auto_shutdown(codec);
-	snd_hda_gen_reboot_notify(codec);
-}
-
 static void cx_auto_free(struct hda_codec *codec)
 {
-	cx_auto_reboot_notify(codec);
+	cx_auto_shutdown(codec);
 	snd_hda_gen_free(codec);
 }
 
@@ -210,7 +204,6 @@ static const struct hda_codec_ops cx_auto_patch_ops = {
 	.build_controls = snd_hda_gen_build_controls,
 	.build_pcms = snd_hda_gen_build_pcms,
 	.init = cx_auto_init,
-	.reboot_notify = cx_auto_reboot_notify,
 	.free = cx_auto_free,
 	.unsol_event = snd_hda_jack_unsol_event,
 #ifdef CONFIG_PM

sound/pci/hda/patch_realtek.c

@@ -109,7 +109,6 @@ struct alc_spec {
 	void (*power_hook)(struct hda_codec *codec);
 #endif
 	void (*shutup)(struct hda_codec *codec);
-	void (*reboot_notify)(struct hda_codec *codec);
 
 	int init_amp;
 	int codec_variant;	/* flag for other variants */
@@ -897,16 +896,6 @@ static inline void alc_shutup(struct hda_codec *codec)
 		alc_shutup_pins(codec);
 }
 
-static void alc_reboot_notify(struct hda_codec *codec)
-{
-	struct alc_spec *spec = codec->spec;
-
-	if (spec && spec->reboot_notify)
-		spec->reboot_notify(codec);
-	else
-		alc_shutup(codec);
-}
-
 #define alc_free	snd_hda_gen_free
 
 #ifdef CONFIG_PM
@@ -952,7 +941,6 @@ static const struct hda_codec_ops alc_patch_ops = {
 	.suspend = alc_suspend,
 	.check_power_status = snd_hda_gen_check_power_status,
 #endif
-	.reboot_notify = alc_reboot_notify,
 };
 
 
@@ -5773,7 +5761,6 @@ static void alc_fixup_tpt440_dock(struct hda_codec *codec,
 	struct alc_spec *spec = codec->spec;
 
 	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
-		spec->reboot_notify = snd_hda_gen_reboot_notify; /* reduce noise */
 		spec->parse_flags = HDA_PINCFG_NO_HP_FIXUP;
 		codec->power_save_node = 0; /* avoid click noises */
 		snd_hda_apply_pincfgs(codec, pincfgs);

sound/pci/hda/patch_sigmatel.c

@@ -4460,7 +4460,6 @@ static const struct hda_codec_ops stac_patch_ops = {
 #ifdef CONFIG_PM
 	.suspend = stac_suspend,
 #endif
-	.reboot_notify = stac_shutup,
 };
 
 static int alloc_stac_spec(struct hda_codec *codec)