ALSA: hda - Add a generic reboot_notify

Make codec enter D3 before rebooting or poweroff can fix the noise
issue on some laptops. And in theory it is harmless for all codecs
to enter D3 before rebooting or poweroff, let us add a generic
reboot_notify, then realtek and conexant drivers can call this
function.

Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 8f2beb1f3ae48ad8c56560a1ba44c9705e7083fc..5bf24fb819d28f12cb00012dd73aa65db65c60cc 100644 (file)
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -6051,6 +6051,24 @@ 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
@@ -6078,6 +6096,7 @@ 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

diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index 35a670a71c423097e8d65e19b283fe4118aea35f..5f199dcb0d188eb62ff84fac843e6a94bb027e57 100644 (file)
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -332,6 +332,7 @@ 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,

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 93a303676aeab4eebcd9b8e9270059cf5320235a..14298ef45b21bdf71db7dc864542ea8a7213331f 100644 (file)
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -166,11 +166,7 @@ static void cx_auto_reboot_notify(struct hda_codec *codec)
        /* Turn the problematic codec into D3 to avoid spurious noises
           from the internal speaker during (and after) reboot */
        cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, false);
-
-       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);
+       snd_hda_gen_reboot_notify(codec);
 }
 
 static void cx_auto_free(struct hda_codec *codec)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8aaf1d9c55cfd5e75ac566d11acb15131f3c2853..e333b3e30e316034420b1dd4e24e031d18812b3d 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -869,15 +869,6 @@ static void alc_reboot_notify(struct hda_codec *codec)
                alc_shutup(codec);
 }
 
-/* power down codec to D3 at reboot/shutdown; set as reboot_notify ops */
-static void alc_d3_at_reboot(struct hda_codec *codec)
-{
-       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);
-}
-
 #define alc_free       snd_hda_gen_free
 
 #ifdef CONFIG_PM
@@ -5152,7 +5143,7 @@ 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 = alc_d3_at_reboot; /* reduce noise */
+               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);