summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/ak4642.c
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2014-05-14 09:37:35 +0200
committerMark Brown <broonie@linaro.org>2014-05-14 12:32:03 +0100
commitd815c703cedbc783ae09ac65eef5c4aa18e06128 (patch)
tree8c25d728fcdfb9dc489f27f36b5b8ab45c77ddd6 /sound/soc/codecs/ak4642.c
parent370f83a156e42d6c6997c65dbceb4bb7118e915a (diff)
downloadop-kernel-dev-d815c703cedbc783ae09ac65eef5c4aa18e06128.zip
op-kernel-dev-d815c703cedbc783ae09ac65eef5c4aa18e06128.tar.gz
ASoC: ak4642: Add driver data and driver private struct
Currently unused, this is done to let the driver distinguish between the different supported codec types in later patches. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/ak4642.c')
-rw-r--r--sound/soc/codecs/ak4642.c51
1 files changed, 40 insertions, 11 deletions
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 90d2d93..b568692 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -134,6 +134,14 @@
/* MD_CTL4 */
#define DACH (1 << 0)
+struct ak4642_drvdata {
+ const struct regmap_config *regmap_config;
+};
+
+struct ak4642_priv {
+ const struct ak4642_drvdata *drvdata;
+};
+
/*
* Playback Volume (table 39)
*
@@ -507,30 +515,51 @@ static const struct regmap_config ak4648_regmap = {
.num_reg_defaults = ARRAY_SIZE(ak4648_reg),
};
+static const struct ak4642_drvdata ak4642_drvdata = {
+ .regmap_config = &ak4642_regmap,
+};
+
+static const struct ak4642_drvdata ak4643_drvdata = {
+ .regmap_config = &ak4642_regmap,
+};
+
+static const struct ak4642_drvdata ak4648_drvdata = {
+ .regmap_config = &ak4648_regmap,
+};
+
static struct of_device_id ak4642_of_match[];
static int ak4642_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct device_node *np = i2c->dev.of_node;
- const struct regmap_config *regmap_config = NULL;
+ const struct ak4642_drvdata *drvdata = NULL;
struct regmap *regmap;
+ struct ak4642_priv *priv;
if (np) {
const struct of_device_id *of_id;
of_id = of_match_device(ak4642_of_match, &i2c->dev);
if (of_id)
- regmap_config = of_id->data;
+ drvdata = of_id->data;
} else {
- regmap_config = (const struct regmap_config *)id->driver_data;
+ drvdata = (const struct ak4642_drvdata *)id->driver_data;
}
- if (!regmap_config) {
+ if (!drvdata) {
dev_err(&i2c->dev, "Unknown device type\n");
return -EINVAL;
}
- regmap = devm_regmap_init_i2c(i2c, regmap_config);
+ priv = devm_kzalloc(&i2c->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->drvdata = drvdata;
+
+ i2c_set_clientdata(i2c, priv);
+
+ regmap = devm_regmap_init_i2c(i2c, drvdata->regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
@@ -545,17 +574,17 @@ static int ak4642_i2c_remove(struct i2c_client *client)
}
static struct of_device_id ak4642_of_match[] = {
- { .compatible = "asahi-kasei,ak4642", .data = &ak4642_regmap},
- { .compatible = "asahi-kasei,ak4643", .data = &ak4642_regmap},
- { .compatible = "asahi-kasei,ak4648", .data = &ak4648_regmap},
+ { .compatible = "asahi-kasei,ak4642", .data = &ak4642_drvdata},
+ { .compatible = "asahi-kasei,ak4643", .data = &ak4643_drvdata},
+ { .compatible = "asahi-kasei,ak4648", .data = &ak4648_drvdata},
{},
};
MODULE_DEVICE_TABLE(of, ak4642_of_match);
static const struct i2c_device_id ak4642_i2c_id[] = {
- { "ak4642", (kernel_ulong_t)&ak4642_regmap },
- { "ak4643", (kernel_ulong_t)&ak4642_regmap },
- { "ak4648", (kernel_ulong_t)&ak4648_regmap },
+ { "ak4642", (kernel_ulong_t)&ak4642_drvdata },
+ { "ak4643", (kernel_ulong_t)&ak4643_drvdata },
+ { "ak4648", (kernel_ulong_t)&ak4648_drvdata },
{ }
};
MODULE_DEVICE_TABLE(i2c, ak4642_i2c_id);
OpenPOWER on IntegriCloud