Merge tag 'asoc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.13

The big news with this release is the of-graph card, this provides a
replacement for simple-card that is much more flexibile and scalable,
allowing many more systems to use a generic sound card than was possible
before:

 - The of-graph card, finally merged after a long and dedicated effort
   by Morimoto-san.
 - New widget types intended mainly for use with DSPs.
 - New drivers for Allwinner V3s SoCs, Ensonic ES8316, several classes
   of x86 machine, Rockchip PDM controllers, STM32 I2S and S/PDIF
   controllers and ZTE AUD96P22 CODECs.

1 files changed, 92 insertions, 2 deletions

diff --git a/sound/soc/codecs/cs35l35.c b/sound/soc/codecs/cs35l35.c
index f8aef5869b03..f1ee184ecab2 100644
--- a/sound/soc/codecs/cs35l35.c
+++ b/sound/soc/codecs/cs35l35.c
@@ -162,6 +162,14 @@ static bool cs35l35_precious_register(struct device *dev, unsigned int reg)
 	}
 }
 
+static void cs35l35_reset(struct cs35l35_private *cs35l35)
+{
+	gpiod_set_value_cansleep(cs35l35->reset_gpio, 0);
+	usleep_range(2000, 2100);
+	gpiod_set_value_cansleep(cs35l35->reset_gpio, 1);
+	usleep_range(1000, 1100);
+}
+
 static int cs35l35_wait_for_pdn(struct cs35l35_private *cs35l35)
 {
 	int ret;
@@ -756,6 +764,76 @@ static int cs35l35_codec_set_sysclk(struct snd_soc_codec *codec,
 	return ret;
 }
 
+static int cs35l35_boost_inductor(struct cs35l35_private *cs35l35,
+				  int inductor)
+{
+	struct regmap *regmap = cs35l35->regmap;
+	unsigned int bst_ipk = 0;
+
+	/*
+	 * Digital Boost Converter Configuration for feedback,
+	 * ramping, switching frequency, and estimation block seeding.
+	 */
+
+	regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+			   CS35L35_BST_CONV_SWFREQ_MASK, 0x00);
+
+	regmap_read(regmap, CS35L35_BST_PEAK_I, &bst_ipk);
+	bst_ipk &= CS35L35_BST_IPK_MASK;
+
+	switch (inductor) {
+	case 1000: /* 1 uH */
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x24);
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x24);
+		regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+				   CS35L35_BST_CONV_LBST_MASK, 0x00);
+
+		if (bst_ipk < 0x04)
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+		else
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x4E);
+		break;
+	case 1200: /* 1.2 uH */
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20);
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20);
+		regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+				   CS35L35_BST_CONV_LBST_MASK, 0x01);
+
+		if (bst_ipk < 0x04)
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+		else
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x47);
+		break;
+	case 1500: /* 1.5uH */
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20);
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20);
+		regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+				   CS35L35_BST_CONV_LBST_MASK, 0x02);
+
+		if (bst_ipk < 0x04)
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+		else
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x3C);
+		break;
+	case 2200: /* 2.2uH */
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x19);
+		regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x25);
+		regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+				   CS35L35_BST_CONV_LBST_MASK, 0x03);
+
+		if (bst_ipk < 0x04)
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+		else
+			regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x23);
+		break;
+	default:
+		dev_err(cs35l35->dev, "Invalid Inductor Value %d uH\n",
+			inductor);
+		return -EINVAL;
+	}
+	return 0;
+}
+
 static int cs35l35_codec_probe(struct snd_soc_codec *codec)
 {
 	struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
@@ -775,6 +853,10 @@ static int cs35l35_codec_probe(struct snd_soc_codec *codec)
 				cs35l35->pdata.bst_ipk <<
 				CS35L35_BST_IPK_SHIFT);
 
+	ret = cs35l35_boost_inductor(cs35l35, cs35l35->pdata.boost_ind);
+	if (ret)
+		return ret;
+
 	if (cs35l35->pdata.gain_zc)
 		regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
 				CS35L35_AMP_GAIN_ZC_MASK,
@@ -1195,7 +1277,15 @@ static int cs35l35_handle_of_data(struct i2c_client *i2c_client,
 			return -EINVAL;
 		}
 
-		pdata->bst_ipk = (val32 - 1680) / 110;
+		pdata->bst_ipk = ((val32 - 1680) / 110) | CS35L35_VALID_PDATA;
+	}
+
+	ret = of_property_read_u32(np, "cirrus,boost-ind-nanohenry", &val32);
+	if (ret >= 0) {
+		pdata->boost_ind = val32;
+	} else {
+		dev_err(&i2c_client->dev, "Inductor not specified.\n");
+		return -EINVAL;
 	}
 
 	if (of_property_read_u32(np, "cirrus,sp-drv-strength", &val32) >= 0)
@@ -1454,7 +1544,7 @@ static int cs35l35_i2c_probe(struct i2c_client *i2c_client,
 		}
 	}
 
-	gpiod_set_value_cansleep(cs35l35->reset_gpio, 1);
+	cs35l35_reset(cs35l35);
 
 	init_completion(&cs35l35->pdn_done);