ALSA: hda - Restore default pin configs for realtek codecs
Some machines have broken BIOS resume that doesn't restore the default
pin configuration properly, which results in a wrong detection of HP
pin. This causes a silent speaker output due to missing HP detection.
Related bug: Novell bug#406101
https://bugzilla.novell.com/show_bug.cgi?id=406101
This patch fixes the issue by saving/restoring the default pin configs
by the driver itself.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index ef4955c..4eceab9 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -307,6 +307,13 @@
/* for PLL fix */
hda_nid_t pll_nid;
unsigned int pll_coef_idx, pll_coef_bit;
+
+#ifdef SND_HDA_NEEDS_RESUME
+#define ALC_MAX_PINS 16
+ unsigned int num_pins;
+ hda_nid_t pin_nids[ALC_MAX_PINS];
+ unsigned int pin_cfgs[ALC_MAX_PINS];
+#endif
};
/*
@@ -2778,6 +2785,64 @@
codec->spec = NULL; /* to be sure */
}
+#ifdef SND_HDA_NEEDS_RESUME
+static void store_pin_configs(struct hda_codec *codec)
+{
+ struct alc_spec *spec = codec->spec;
+ hda_nid_t nid, end_nid;
+
+ end_nid = codec->start_nid + codec->num_nodes;
+ for (nid = codec->start_nid; nid < end_nid; nid++) {
+ unsigned int wid_caps = get_wcaps(codec, nid);
+ unsigned int wid_type =
+ (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
+ if (wid_type != AC_WID_PIN)
+ continue;
+ if (spec->num_pins >= ARRAY_SIZE(spec->pin_nids))
+ break;
+ spec->pin_nids[spec->num_pins] = nid;
+ spec->pin_cfgs[spec->num_pins] =
+ snd_hda_codec_read(codec, nid, 0,
+ AC_VERB_GET_CONFIG_DEFAULT, 0);
+ spec->num_pins++;
+ }
+}
+
+static void resume_pin_configs(struct hda_codec *codec)
+{
+ struct alc_spec *spec = codec->spec;
+ int i;
+
+ for (i = 0; i < spec->num_pins; i++) {
+ hda_nid_t pin_nid = spec->pin_nids[i];
+ unsigned int pin_config = spec->pin_cfgs[i];
+ snd_hda_codec_write(codec, pin_nid, 0,
+ AC_VERB_SET_CONFIG_DEFAULT_BYTES_0,
+ pin_config & 0x000000ff);
+ snd_hda_codec_write(codec, pin_nid, 0,
+ AC_VERB_SET_CONFIG_DEFAULT_BYTES_1,
+ (pin_config & 0x0000ff00) >> 8);
+ snd_hda_codec_write(codec, pin_nid, 0,
+ AC_VERB_SET_CONFIG_DEFAULT_BYTES_2,
+ (pin_config & 0x00ff0000) >> 16);
+ snd_hda_codec_write(codec, pin_nid, 0,
+ AC_VERB_SET_CONFIG_DEFAULT_BYTES_3,
+ pin_config >> 24);
+ }
+}
+
+static int alc_resume(struct hda_codec *codec)
+{
+ resume_pin_configs(codec);
+ codec->patch_ops.init(codec);
+ snd_hda_codec_resume_amp(codec);
+ snd_hda_codec_resume_cache(codec);
+ return 0;
+}
+#else
+#define store_pin_configs(codec)
+#endif
+
/*
*/
static struct hda_codec_ops alc_patch_ops = {
@@ -2786,6 +2851,9 @@
.init = alc_init,
.free = alc_free,
.unsol_event = alc_unsol_event,
+#ifdef SND_HDA_NEEDS_RESUME
+ .resume = alc_resume,
+#endif
#ifdef CONFIG_SND_HDA_POWER_SAVE
.check_power_status = alc_check_power_status,
#endif
@@ -3832,6 +3900,7 @@
spec->num_mux_defs = 1;
spec->input_mux = &spec->private_imux;
+ store_pin_configs(codec);
return 1;
}
@@ -5250,6 +5319,7 @@
}
spec->num_mixers++;
+ store_pin_configs(codec);
return 1;
}
@@ -10313,6 +10383,7 @@
if (err < 0)
return err;
+ store_pin_configs(codec);
return 1;
}
@@ -11447,6 +11518,7 @@
if (err < 0)
return err;
+ store_pin_configs(codec);
return 1;
}
@@ -12230,6 +12302,7 @@
spec->mixers[spec->num_mixers] = alc269_capture_mixer;
spec->num_mixers++;
+ store_pin_configs(codec);
return 1;
}
@@ -13316,6 +13389,7 @@
spec->mixers[spec->num_mixers] = alc861_capture_mixer;
spec->num_mixers++;
+ store_pin_configs(codec);
return 1;
}
@@ -14427,6 +14501,7 @@
if (err < 0)
return err;
+ store_pin_configs(codec);
return 1;
}
@@ -16258,6 +16333,8 @@
spec->mixers[spec->num_mixers] = alc662_capture_mixer;
spec->num_mixers++;
+
+ store_pin_configs(codec);
return 1;
}