ALSA: hda - Add fixup for MacBook Air 6,1 and 6,2 with CS4208 codec

This patch adds the default pin configuration and some init verbs for
setting COEFs, in addition to the correction of input pin AMP caps
for MacBook Air 6,1 and 6,2.  With these changes, the headphone jack
detection starts working properly.

[trivial space fixes by tiwai]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60811
Signed-off-by: Ben Whitten <benwhitten@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_cirrus.c

@@ -111,6 +111,9 @@ enum {
 /* 0x0009 - 0x0014 -> 12 test regs */
 /* 0x0015 - visibility reg */
 
+/* Cirrus Logic CS4208 */
+#define CS4208_VENDOR_NID	0x24
+
 /*
  * Cirrus Logic CS4210
  *
@@ -223,6 +226,16 @@ static const struct hda_verb cs_coef_init_verbs[] = {
 	{} /* terminator */
 };
 
+static const struct hda_verb cs4208_coef_init_verbs[] = {
+	{0x01, AC_VERB_SET_POWER_STATE, 0x00}, /* AFG: D0 */
+	{0x24, AC_VERB_SET_PROC_STATE, 0x01},  /* VPW: processing on */
+	{0x24, AC_VERB_SET_COEF_INDEX, 0x0033},
+	{0x24, AC_VERB_SET_PROC_COEF, 0x0001}, /* A1 ICS */
+	{0x24, AC_VERB_SET_COEF_INDEX, 0x0034},
+	{0x24, AC_VERB_SET_PROC_COEF, 0x1C01}, /* A1 Enable, A Thresh = 300mV */
+	{} /* terminator */
+};
+
 /* Errata: CS4207 rev C0/C1/C2 Silicon
  *
  * http://www.cirrus.com/en/pubs/errata/ER880C3.pdf
@@ -295,6 +308,8 @@ static int cs_init(struct hda_codec *codec)
 		/* init_verb sequence for C0/C1/C2 errata*/
 		snd_hda_sequence_write(codec, cs_errata_init_verbs);
 		snd_hda_sequence_write(codec, cs_coef_init_verbs);
+	} else if (spec->vendor_nid == CS4208_VENDOR_NID) {
+		snd_hda_sequence_write(codec, cs4208_coef_init_verbs);
 	}
 
 	snd_hda_gen_init(codec);
@@ -434,6 +449,29 @@ static const struct hda_pintbl mba42_pincfgs[] = {
 	{} /* terminator */
 };
 
+static const struct hda_pintbl mba6_pincfgs[] = {
+	{ 0x10, 0x032120f0 }, /* HP */
+	{ 0x11, 0x500000f0 },
+	{ 0x12, 0x90100010 }, /* Speaker */
+	{ 0x13, 0x500000f0 },
+	{ 0x14, 0x500000f0 },
+	{ 0x15, 0x770000f0 },
+	{ 0x16, 0x770000f0 },
+	{ 0x17, 0x430000f0 },
+	{ 0x18, 0x43ab9030 }, /* Mic */
+	{ 0x19, 0x770000f0 },
+	{ 0x1a, 0x770000f0 },
+	{ 0x1b, 0x770000f0 },
+	{ 0x1c, 0x90a00090 },
+	{ 0x1d, 0x500000f0 },
+	{ 0x1e, 0x500000f0 },
+	{ 0x1f, 0x500000f0 },
+	{ 0x20, 0x500000f0 },
+	{ 0x21, 0x430000f0 },
+	{ 0x22, 0x430000f0 },
+	{} /* terminator */
+};
+
 static void cs420x_fixup_gpio_13(struct hda_codec *codec,
 				 const struct hda_fixup *fix, int action)
 {
@@ -556,22 +594,23 @@ static int patch_cs420x(struct hda_codec *codec)
 
 /*
  * CS4208 support:
- * Its layout is no longer compatible with CS4206/CS4207, and the generic
- * parser seems working fairly well, except for trivial fixups.
+ * Its layout is no longer compatible with CS4206/CS4207
  */
 enum {
+	CS4208_MBA6,
 	CS4208_GPIO0,
 };
 
 static const struct hda_model_fixup cs4208_models[] = {
 	{ .id = CS4208_GPIO0, .name = "gpio0" },
+	{ .id = CS4208_MBA6, .name = "mba6" },
 	{}
 };
 
 static const struct snd_pci_quirk cs4208_fixup_tbl[] = {
 	/* codec SSID */
-	SND_PCI_QUIRK(0x106b, 0x7100, "MacBookPro 6,1", CS4208_GPIO0),
-	SND_PCI_QUIRK(0x106b, 0x7200, "MacBookPro 6,2", CS4208_GPIO0),
+	SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6),
+	SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6),
 	{} /* terminator */
 };
 
@@ -588,18 +627,35 @@ static void cs4208_fixup_gpio0(struct hda_codec *codec,
 }
 
 static const struct hda_fixup cs4208_fixups[] = {
+	[CS4208_MBA6] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = mba6_pincfgs,
+		.chained = true,
+		.chain_id = CS4208_GPIO0,
+	},
 	[CS4208_GPIO0] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cs4208_fixup_gpio0,
 	},
 };
 
+/* correct the 0dB offset of input pins */
+static void cs4208_fix_amp_caps(struct hda_codec *codec, hda_nid_t adc)
+{
+	unsigned int caps;
+
+	caps = query_amp_caps(codec, adc, HDA_INPUT);
+	caps &= ~(AC_AMPCAP_OFFSET);
+	caps |= 0x02;
+	snd_hda_override_amp_caps(codec, adc, HDA_INPUT, caps);
+}
+
 static int patch_cs4208(struct hda_codec *codec)
 {
 	struct cs_spec *spec;
 	int err;
 
-	spec = cs_alloc_spec(codec, 0); /* no specific w/a */
+	spec = cs_alloc_spec(codec, CS4208_VENDOR_NID);
 	if (!spec)
 		return -ENOMEM;
 
@@ -609,6 +665,12 @@ static int patch_cs4208(struct hda_codec *codec)
 			   cs4208_fixups);
 	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);
 
+	snd_hda_override_wcaps(codec, 0x18,
+			       get_wcaps(codec, 0x18) | AC_WCAP_STEREO);
+	cs4208_fix_amp_caps(codec, 0x18);
+	cs4208_fix_amp_caps(codec, 0x1b);
+	cs4208_fix_amp_caps(codec, 0x1c);
+
 	err = cs_parse_auto_config(codec);
 	if (err < 0)
 		goto error;