ASoC: tlv320aic23: add support for SPI control mode

tlv320aic23 chip control interface may work in either I2C or SPI mode
depending on the MODE pin state. Functionality and register layout are
independent of the control mode.

Implement bus-specific parts as separate modules.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 11 insertions, 44 deletions

diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index 139f11f..ab369ae 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -23,7 +23,6 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/pm.h>
-#include <linux/i2c.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 #include <sound/core.h>
@@ -51,7 +50,7 @@ static const struct reg_default tlv320aic23_reg[] = {
 	{  9, 0x0000 },
 };
 
-static const struct regmap_config tlv320aic23_regmap = {
+const struct regmap_config tlv320aic23_regmap = {
 	.reg_bits = 7,
 	.val_bits = 9,
 
@@ -557,7 +556,7 @@ static int tlv320aic23_resume(struct snd_soc_codec *codec)
 	return 0;
 }
 
-static int tlv320aic23_probe(struct snd_soc_codec *codec)
+static int tlv320aic23_codec_probe(struct snd_soc_codec *codec)
 {
 	int ret;
 
@@ -604,7 +603,7 @@ static int tlv320aic23_remove(struct snd_soc_codec *codec)
 }
 
 static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
-	.probe = tlv320aic23_probe,
+	.probe = tlv320aic23_codec_probe,
 	.remove = tlv320aic23_remove,
 	.suspend = tlv320aic23_suspend,
 	.resume = tlv320aic23_resume,
@@ -617,57 +616,25 @@ static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
 	.num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),
 };
 
-/*
- * If the i2c layer weren't so broken, we could pass this kind of data
- * around
- */
-static int tlv320aic23_codec_probe(struct i2c_client *i2c,
-				   const struct i2c_device_id *i2c_id)
+int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
 {
 	struct aic23 *aic23;
-	int ret;
 
-	if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-		return -EINVAL;
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
 
-	aic23 = devm_kzalloc(&i2c->dev, sizeof(struct aic23), GFP_KERNEL);
+	aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
 	if (aic23 == NULL)
 		return -ENOMEM;
 
-	aic23->regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
-	if (IS_ERR(aic23->regmap))
-		return PTR_ERR(aic23->regmap);
+	aic23->regmap = regmap;
 
-	i2c_set_clientdata(i2c, aic23);
+	dev_set_drvdata(dev, aic23);
 
-	ret =  snd_soc_register_codec(&i2c->dev,
-			&soc_codec_dev_tlv320aic23, &tlv320aic23_dai, 1);
-	return ret;
-}
-static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
-{
-	snd_soc_unregister_codec(&i2c->dev);
-	return 0;
+	return snd_soc_register_codec(dev, &soc_codec_dev_tlv320aic23,
+				      &tlv320aic23_dai, 1);
 }
 
-static const struct i2c_device_id tlv320aic23_id[] = {
-	{"tlv320aic23", 0},
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
-
-static struct i2c_driver tlv320aic23_i2c_driver = {
-	.driver = {
-		   .name = "tlv320aic23-codec",
-		   },
-	.probe = tlv320aic23_codec_probe,
-	.remove = __exit_p(tlv320aic23_i2c_remove),
-	.id_table = tlv320aic23_id,
-};
-
-module_i2c_driver(tlv320aic23_i2c_driver);
-
 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
 MODULE_LICENSE("GPL");