[alsa-devel] [PATCH v2 2/5] Sound: SOC: TAS571x: chip type detection via I2C name

[Petr Kulhavy]

The chip selection was relying only on DT. It was not possible to use the
driver without DT.
This adds the chip type detection from the I2C name, which
allows to use the driver from the platform driver without DT.

Signed-off-by: Petr Kulhavy <petr at barix.com>
Tested-by: Petr Kulhavy <petr at barix.com>
---
 sound/soc/codecs/tas571x.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index 346d3da..2a63069 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -390,11 +390,10 @@ static int tas571x_i2c_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, priv);
 
 	of_id = of_match_device(tas571x_of_match, dev);
-	if (!of_id) {
-		dev_err(dev, "Unknown device type\n");
-		return -EINVAL;
-	}
-	priv->chip = of_id->data;
+	if (of_id)
+		priv->chip = of_id->data;
+	else
+		priv->chip = (void *) id->driver_data;
 
 	priv->mclk = devm_clk_get(dev, "mclk");
 	if (IS_ERR(priv->mclk) && PTR_ERR(priv->mclk) != -ENOENT) {
@@ -495,9 +494,9 @@ static const struct of_device_id tas571x_of_match[] = {
 MODULE_DEVICE_TABLE(of, tas571x_of_match);
 
 static const struct i2c_device_id tas571x_i2c_id[] = {
-	{ "tas5711", 0 },
-	{ "tas5717", 0 },
-	{ "tas5719", 0 },
+	{ "tas5711", (kernel_ulong_t) &tas5711_chip },
+	{ "tas5717", (kernel_ulong_t) &tas5717_chip },
+	{ "tas5719", (kernel_ulong_t) &tas5717_chip },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, tas571x_i2c_id);
-- 
1.9.1