[PATCH v14 2/8] ASoC: sun4i-codec: Add Mic1 Boost Volume, Mic2 Boost Volume

[Danny Milosavljevic]

Add Mic1 Boost Volume and Mic2 Boost Volume for Allwinner A10 and Allwinner
A20.  Also add support for extra controls to the sun4i_codec_quirks because
the A10 and A20 have Mic1 Boost Volume at different places (likewise for
Mic2 Boost Volume).

Signed-off-by: Danny Milosavljevic <dannym at scratchpost.org>
---
 sound/soc/sunxi/sun4i-codec.c | 66 ++++++++++++++++++++++++++++++++++++-------
 1 file changed, 56 insertions(+), 10 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-codec.c b/sound/soc/sunxi/sun4i-codec.c
index 060a40b45ab0..4af286f44a67 100644
--- a/sound/soc/sunxi/sun4i-codec.c
+++ b/sound/soc/sunxi/sun4i-codec.c
@@ -95,6 +95,8 @@
 #define SUN4I_CODEC_ADC_ACTL_PREG1EN			(29)
 #define SUN4I_CODEC_ADC_ACTL_PREG2EN			(28)
 #define SUN4I_CODEC_ADC_ACTL_VMICEN			(27)
+#define SUN4I_CODEC_ADC_ACTL_PREG1			(25)
+#define SUN4I_CODEC_ADC_ACTL_PREG2			(23)
 #define SUN4I_CODEC_ADC_ACTL_VADCG			(20)
 #define SUN4I_CODEC_ADC_ACTL_ADCIS			(17)
 #define SUN4I_CODEC_ADC_ACTL_PA_EN			(4)
@@ -111,6 +113,9 @@
 /* Microphone controls (sun7i only) */
 #define SUN7I_CODEC_AC_MIC_PHONE_CAL		(0x3c)
 
+#define SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG1		(29)
+#define SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG2		(26)
+
 /*
  * sun6i specific registers
  *
@@ -676,6 +681,12 @@ static const struct snd_kcontrol_new sun4i_codec_pa_mute =
 static DECLARE_TLV_DB_SCALE(sun4i_codec_pa_volume_scale, -6300, 100, 1);
 static DECLARE_TLV_DB_SCALE(sun4i_codec_micin_loopback_gain_scale, -450, 150,
 			    0);
+static DECLARE_TLV_DB_RANGE(sun4i_codec_micin_preamp_gain_scale,
+			    0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
+			    1, 7, TLV_DB_SCALE_ITEM(3500, 300, 0));
+static DECLARE_TLV_DB_RANGE(sun7i_codec_micin_preamp_gain_scale,
+			    0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
+			    1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0));
 
 static const struct snd_kcontrol_new sun4i_codec_controls[] = {
 	SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
@@ -686,6 +697,24 @@ static const struct snd_kcontrol_new sun4i_codec_controls[] = {
 		       sun4i_codec_micin_loopback_gain_scale),
 };
 
+static const struct snd_kcontrol_new sun4i_codec_extra_controls[] = {
+	SOC_SINGLE_TLV("Mic1 Boost Volume", SUN4I_CODEC_ADC_ACTL,
+		       SUN4I_CODEC_ADC_ACTL_PREG1, 3, 0,
+		       sun4i_codec_micin_preamp_gain_scale),
+	SOC_SINGLE_TLV("Mic2 Boost Volume", SUN4I_CODEC_ADC_ACTL,
+		       SUN4I_CODEC_ADC_ACTL_PREG2, 3, 0,
+		       sun4i_codec_micin_preamp_gain_scale),
+};
+
+static const struct snd_kcontrol_new sun7i_codec_extra_controls[] = {
+	SOC_SINGLE_TLV("Mic1 Boost Volume", SUN7I_CODEC_AC_MIC_PHONE_CAL,
+		       SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG1, 7, 0,
+		       sun7i_codec_micin_preamp_gain_scale),
+	SOC_SINGLE_TLV("Mic2 Boost Volume", SUN7I_CODEC_AC_MIC_PHONE_CAL,
+		       SUN7I_CODEC_AC_MIC_PHONE_CAL_PREG2, 7, 0,
+		       sun7i_codec_micin_preamp_gain_scale),
+};
+
 static const struct snd_kcontrol_new sun4i_codec_left_mixer_controls[] = {
 	SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
 			SUN4I_CODEC_DAC_ACTL_LDACLMIXS, 1, 0),
@@ -807,7 +836,30 @@ static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
 	{ "Mic2", NULL, "VMIC" },
 };
 
+struct sun4i_codec_quirks {
+	const struct regmap_config *regmap_config;
+	const struct snd_soc_component_driver *codec;
+	struct snd_soc_card * (*create_card)(struct device *dev);
+	struct reg_field reg_adc_fifoc;	/* used for regmap_field */
+	unsigned int reg_dac_txdata;	/* TX FIFO offset for DMA config */
+	unsigned int reg_adc_rxdata;	/* RX FIFO offset for DMA config */
+	bool has_reset;
+	const struct snd_kcontrol_new *controls;
+	unsigned int num_controls;
+};
+
+static int sun4i_codec_component_driver_probe(struct snd_soc_component *codec)
+{
+	const struct sun4i_codec_quirks *quirks;
+
+	quirks = of_device_get_match_data(codec->dev);
+	return snd_soc_add_component_controls(codec,
+					      quirks->controls,
+					      quirks->num_controls);
+}
+
 static const struct snd_soc_component_driver sun4i_codec_codec = {
+	.probe			= sun4i_codec_component_driver_probe,
 	.controls		= sun4i_codec_controls,
 	.num_controls		= ARRAY_SIZE(sun4i_codec_controls),
 	.dapm_widgets		= sun4i_codec_codec_dapm_widgets,
@@ -1469,16 +1521,6 @@ static const struct regmap_config sun8i_v3s_codec_regmap_config = {
 	.max_register	= SUN8I_H3_CODEC_ADC_DBG,
 };
 
-struct sun4i_codec_quirks {
-	const struct regmap_config *regmap_config;
-	const struct snd_soc_component_driver *codec;
-	struct snd_soc_card * (*create_card)(struct device *dev);
-	struct reg_field reg_adc_fifoc;	/* used for regmap_field */
-	unsigned int reg_dac_txdata;	/* TX FIFO offset for DMA config */
-	unsigned int reg_adc_rxdata;	/* RX FIFO offset for DMA config */
-	bool has_reset;
-};
-
 static const struct sun4i_codec_quirks sun4i_codec_quirks = {
 	.regmap_config	= &sun4i_codec_regmap_config,
 	.codec		= &sun4i_codec_codec,
@@ -1486,6 +1528,8 @@ static const struct sun4i_codec_quirks sun4i_codec_quirks = {
 	.reg_adc_fifoc	= REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
 	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN4I_CODEC_ADC_RXDATA,
+	.controls	= sun4i_codec_extra_controls,
+	.num_controls	= ARRAY_SIZE(sun4i_codec_extra_controls),
 };
 
 static const struct sun4i_codec_quirks sun6i_a31_codec_quirks = {
@@ -1505,6 +1549,8 @@ static const struct sun4i_codec_quirks sun7i_codec_quirks = {
 	.reg_adc_fifoc	= REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
 	.reg_dac_txdata	= SUN4I_CODEC_DAC_TXDATA,
 	.reg_adc_rxdata	= SUN4I_CODEC_ADC_RXDATA,
+	.controls	= sun7i_codec_extra_controls,
+	.num_controls	= ARRAY_SIZE(sun7i_codec_extra_controls),
 };
 
 static const struct sun4i_codec_quirks sun8i_a23_codec_quirks = {