ASoC: tlv320aic32x4: add type to device private data struct

While this driver can already handle different device variants, the
variant information cannot be used in the driver code and therefor
cannot have different code paths depending on the device variant.

This change adds a `type` value into the `aic32x4_priv` structure, that
contains a device variant identifier, which was set when the driver was
bound to the device.
Signed-off-by: Claudius Heine <ch@denx.de>
Link: https://lore.kernel.org/r/20210617085230.1851503-2-ch@denx.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tlv320aic32x4-i2c.c

@@ -16,6 +16,8 @@
 
 #include "tlv320aic32x4.h"
 
+static const struct of_device_id aic32x4_of_id[];
+
 static int aic32x4_i2c_probe(struct i2c_client *i2c,
 			     const struct i2c_device_id *id)
 {
@@ -27,6 +29,16 @@ static int aic32x4_i2c_probe(struct i2c_client *i2c,
 	config.val_bits = 8;
 
 	regmap = devm_regmap_init_i2c(i2c, &config);
+
+	if (i2c->dev.of_node) {
+		const struct of_device_id *oid;
+
+		oid = of_match_node(aic32x4_of_id, i2c->dev.of_node);
+		dev_set_drvdata(&i2c->dev, (void *)oid->data);
+	} else if (id) {
+		dev_set_drvdata(&i2c->dev, (void *)id->driver_data);
+	}
+
 	return aic32x4_probe(&i2c->dev, regmap);
 }
 
@@ -36,15 +48,15 @@ static int aic32x4_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id aic32x4_i2c_id[] = {
-	{ "tlv320aic32x4", 0 },
-	{ "tlv320aic32x6", 1 },
+	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
+	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);
 
 static const struct of_device_id aic32x4_of_id[] = {
-	{ .compatible = "ti,tlv320aic32x4", },
-	{ .compatible = "ti,tlv320aic32x6", },
+	{ .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
+	{ .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
 	{ /* senitel */ }
 };
 MODULE_DEVICE_TABLE(of, aic32x4_of_id);

sound/soc/codecs/tlv320aic32x4-spi.c

@@ -16,6 +16,8 @@
 
 #include "tlv320aic32x4.h"
 
+static const struct of_device_id aic32x4_of_id[];
+
 static int aic32x4_spi_probe(struct spi_device *spi)
 {
 	struct regmap *regmap;
@@ -28,6 +30,19 @@ static int aic32x4_spi_probe(struct spi_device *spi)
 	config.read_flag_mask = 0x01;
 
 	regmap = devm_regmap_init_spi(spi, &config);
+
+	if (spi->dev.of_node) {
+		const struct of_device_id *oid;
+
+		oid = of_match_node(aic32x4_of_id, spi->dev.of_node);
+		dev_set_drvdata(&spi->dev, (void *)oid->data);
+	} else {
+		const struct spi_device_id *id_entry;
+
+		id_entry = spi_get_device_id(spi);
+		dev_set_drvdata(&spi->dev, (void *)id_entry->driver_data);
+	}
+
 	return aic32x4_probe(&spi->dev, regmap);
 }
 
@@ -37,15 +52,15 @@ static int aic32x4_spi_remove(struct spi_device *spi)
 }
 
 static const struct spi_device_id aic32x4_spi_id[] = {
-	{ "tlv320aic32x4", 0 },
-	{ "tlv320aic32x6", 1 },
+	{ "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
+	{ "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
 
 static const struct of_device_id aic32x4_of_id[] = {
-	{ .compatible = "ti,tlv320aic32x4", },
-	{ .compatible = "ti,tlv320aic32x6", },
+	{ .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
+	{ .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
 	{ /* senitel */ }
 };
 MODULE_DEVICE_TABLE(of, aic32x4_of_id);

sound/soc/codecs/tlv320aic32x4.c

@@ -48,6 +48,7 @@ struct aic32x4_priv {
 
 	struct aic32x4_setup_data *setup;
 	struct device *dev;
+	enum aic32x4_type type;
 };
 
 static int aic32x4_reset_adc(struct snd_soc_dapm_widget *w,
@@ -1198,6 +1199,8 @@ int aic32x4_probe(struct device *dev, struct regmap *regmap)
 		return -ENOMEM;
 
 	aic32x4->dev = dev;
+	aic32x4->type = (enum aic32x4_type)dev_get_drvdata(dev);
+
 	dev_set_drvdata(dev, aic32x4);
 
 	if (pdata) {

sound/soc/codecs/tlv320aic32x4.h

@@ -10,6 +10,11 @@
 struct device;
 struct regmap_config;
 
+enum aic32x4_type {
+	AIC32X4_TYPE_AIC32X4 = 0,
+	AIC32X4_TYPE_AIC32X6,
+};
+
 extern const struct regmap_config aic32x4_regmap_config;
 int aic32x4_probe(struct device *dev, struct regmap *regmap);
 int aic32x4_remove(struct device *dev);