ASoC: tlv320*: use i2c_match_id and simple i2c probe

As part of the ongoing i2c transition to the simple probe
("probe_new"), this patch uses i2c_match_id to retrieve the
driver_data for the probed device. The id parameter is thus no longer
necessary and the simple probe can be used instead.

In the context of an i2c probe, i2c_match_id with the module id table
and the probed client never returns null, so removing the null check
on the i2c_device_id pointer is safe.

The i2c id tables are moved up before the probe function, as
suggested by Wolfram Sang, except where the existing code already had
a declaration for the of_device_id table.

Signed-off-by: Stephen Kitt <steve@sk2.org>
Link: https://lore.kernel.org/r/20220415160613.148882-7-steve@sk2.org
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 11 insertions, 10 deletions

diff --git a/sound/soc/codecs/tlv320adc3xxx.c b/sound/soc/codecs/tlv320adc3xxx.c
index ae18982ac310..a5e9f80cfa32 100644
--- a/sound/soc/codecs/tlv320adc3xxx.c
+++ b/sound/soc/codecs/tlv320adc3xxx.c
@@ -1337,11 +1337,18 @@ static const struct snd_soc_component_driver soc_component_dev_adc3xxx = {
 	.num_dapm_routes	= ARRAY_SIZE(adc3xxx_intercon),
 };
 
-static int adc3xxx_i2c_probe(struct i2c_client *i2c,
-			     const struct i2c_device_id *id)
+static const struct i2c_device_id adc3xxx_i2c_id[] = {
+	{ "tlv320adc3001", ADC3001 },
+	{ "tlv320adc3101", ADC3101 },
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, adc3xxx_i2c_id);
+
+static int adc3xxx_i2c_probe(struct i2c_client *i2c)
 {
 	struct device *dev = &i2c->dev;
 	struct adc3xxx *adc3xxx = NULL;
+	const struct i2c_device_id *id;
 	int ret;
 
 	adc3xxx = devm_kzalloc(dev, sizeof(struct adc3xxx), GFP_KERNEL);
@@ -1394,6 +1401,7 @@ static int adc3xxx_i2c_probe(struct i2c_client *i2c,
 
 	i2c_set_clientdata(i2c, adc3xxx);
 
+	id = i2c_match_id(adc3xxx_i2c_id, i2c);
 	adc3xxx->type = id->driver_data;
 
 	/* Reset codec chip */
@@ -1436,19 +1444,12 @@ static const struct of_device_id tlv320adc3xxx_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, tlv320adc3xxx_of_match);
 
-static const struct i2c_device_id adc3xxx_i2c_id[] = {
-	{ "tlv320adc3001", ADC3001 },
-	{ "tlv320adc3101", ADC3101 },
-	{}
-};
-MODULE_DEVICE_TABLE(i2c, adc3xxx_i2c_id);
-
 static struct i2c_driver adc3xxx_i2c_driver = {
 	.driver = {
 		   .name = "tlv320adc3xxx-codec",
 		   .of_match_table = tlv320adc3xxx_of_match,
 		  },
-	.probe = adc3xxx_i2c_probe,
+	.probe_new = adc3xxx_i2c_probe,
 	.remove = adc3xxx_i2c_remove,
 	.id_table = adc3xxx_i2c_id,
 };