From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 4 Jun 2008 10:39:38 +0000 (+0200)
Subject: [ALSA] hda - Fix PLL gating control on Realtek codecs
X-Git-Tag: v2.6.27-rc1~1111^2~117
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=2c3bf9abb11dd8050cd2d153917d1746c8d5af05;p=linux-2.6-omap-h63xx.git

[ALSA] hda - Fix PLL gating control on Realtek codecs

On some Realtek codecs, the analog PLL gating control bit must be set
off while the default value is 1.

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 048cb84721f..7997e13b59a 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -285,6 +285,10 @@ struct alc_spec {
 #ifdef CONFIG_SND_HDA_POWER_SAVE
 	struct hda_loopback_check loopback;
 #endif
+
+	/* for PLL fix */
+	hda_nid_t pll_nid;
+	unsigned int pll_coef_idx, pll_coef_bit;
 };
 
 /*
@@ -752,6 +756,38 @@ static struct hda_verb alc_gpio3_init_verbs[] = {
 	{ }
 };
 
+/*
+ * Fix hardware PLL issue
+ * On some codecs, the analog PLL gating control must be off while
+ * the default value is 1.
+ */
+static void alc_fix_pll(struct hda_codec *codec)
+{
+	struct alc_spec *spec = codec->spec;
+	unsigned int val;
+
+	if (!spec->pll_nid)
+		return;
+	snd_hda_codec_write(codec, spec->pll_nid, 0, AC_VERB_SET_COEF_INDEX,
+			    spec->pll_coef_idx);
+	val = snd_hda_codec_read(codec, spec->pll_nid, 0,
+				 AC_VERB_GET_PROC_COEF, 0);
+	snd_hda_codec_write(codec, spec->pll_nid, 0, AC_VERB_SET_COEF_INDEX,
+			    spec->pll_coef_idx);
+	snd_hda_codec_write(codec, spec->pll_nid, 0, AC_VERB_SET_PROC_COEF,
+			    val & ~(1 << spec->pll_coef_bit));
+}
+
+static void alc_fix_pll_init(struct hda_codec *codec, hda_nid_t nid,
+			     unsigned int coef_idx, unsigned int coef_bit)
+{
+	struct alc_spec *spec = codec->spec;
+	spec->pll_nid = nid;
+	spec->pll_coef_idx = coef_idx;
+	spec->pll_coef_bit = coef_bit;
+	alc_fix_pll(codec);
+}
+
 static void alc_sku_automute(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
@@ -2400,6 +2436,8 @@ static int alc_init(struct hda_codec *codec)
 	struct alc_spec *spec = codec->spec;
 	unsigned int i;
 
+	alc_fix_pll(codec);
+
 	for (i = 0; i < spec->num_init_verbs; i++)
 		snd_hda_sequence_write(codec, spec->init_verbs[i]);
 
@@ -8286,6 +8324,8 @@ static int patch_alc883(struct hda_codec *codec)
 
 	codec->spec = spec;
 
+	alc_fix_pll_init(codec, 0x20, 0x0a, 10);
+
 	board_config = snd_hda_check_board_config(codec, ALC883_MODEL_LAST,
 						  alc883_models,
 						  alc883_cfg_tbl);
@@ -9886,6 +9926,8 @@ static int patch_alc262(struct hda_codec *codec)
 	}
 #endif
 
+	alc_fix_pll_init(codec, 0x20, 0x0a, 10);
+
 	board_config = snd_hda_check_board_config(codec, ALC262_MODEL_LAST,
 						  alc262_models,
 						  alc262_cfg_tbl);
@@ -11196,6 +11238,8 @@ static int patch_alc269(struct hda_codec *codec)
 
 	codec->spec = spec;
 
+	alc_fix_pll_init(codec, 0x20, 0x04, 15);
+
 	board_config = snd_hda_check_board_config(codec, ALC269_MODEL_LAST,
 						  alc269_models,
 						  alc269_cfg_tbl);
@@ -14531,6 +14575,8 @@ static int patch_alc662(struct hda_codec *codec)
 
 	codec->spec = spec;
 
+	alc_fix_pll_init(codec, 0x20, 0x04, 15);
+
 	board_config = snd_hda_check_board_config(codec, ALC662_MODEL_LAST,
 						  alc662_models,
 			  	                  alc662_cfg_tbl);