From 630e413dc24da0c2373fd7592aeb0e08cea71cd1 Mon Sep 17 00:00:00 2001
From: Petr Kulhavy <petr@barix.com>
Date: Tue, 29 Mar 2016 09:39:35 +0200
Subject: ASoC: tas571x: chip type detection via I2C name

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@barix.com>
Reviewed-by: Kevin Cernekee <cernekee@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c
index d003c6c..aafee9b 100644
--- a/sound/soc/codecs/tas571x.c
+++ b/sound/soc/codecs/tas571x.c
@@ -404,11 +404,10 @@ 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) {
@@ -505,9 +504,9 @@ 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);
-- 
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