ASoC: tlv320aic3x: Add device tree bindings
Device tree support for tlv320aic3x CODEC driver.
Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 01485bd..5708a97 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -40,6 +40,7 @@
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/regulator/consumer.h>
+#include <linux/of_gpio.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -1457,6 +1458,8 @@
{
struct aic3x_pdata *pdata = i2c->dev.platform_data;
struct aic3x_priv *aic3x;
+ struct aic3x_setup_data *ai3x_setup;
+ struct device_node *np = i2c->dev.of_node;
int ret;
aic3x = devm_kzalloc(&i2c->dev, sizeof(struct aic3x_priv), GFP_KERNEL);
@@ -1471,6 +1474,25 @@
if (pdata) {
aic3x->gpio_reset = pdata->gpio_reset;
aic3x->setup = pdata->setup;
+ } else if (np) {
+ ai3x_setup = devm_kzalloc(&i2c->dev, sizeof(*ai3x_setup),
+ GFP_KERNEL);
+ if (ai3x_setup == NULL) {
+ dev_err(&i2c->dev, "failed to create private data\n");
+ return -ENOMEM;
+ }
+
+ ret = of_get_named_gpio(np, "gpio-reset", 0);
+ if (ret >= 0)
+ aic3x->gpio_reset = ret;
+ else
+ aic3x->gpio_reset = -1;
+
+ if (of_property_read_u32_array(np, "ai3x-gpio-func",
+ ai3x_setup->gpio_func, 2) >= 0) {
+ aic3x->setup = ai3x_setup;
+ }
+
} else {
aic3x->gpio_reset = -1;
}
@@ -1488,11 +1510,20 @@
return 0;
}
+#if defined(CONFIG_OF)
+static const struct of_device_id tlv320aic3x_of_match[] = {
+ { .compatible = "ti,tlv320aic3x", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tlv320aic3x_of_match);
+#endif
+
/* machine i2c codec control layer */
static struct i2c_driver aic3x_i2c_driver = {
.driver = {
.name = "tlv320aic3x-codec",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(tlv320aic3x_of_match),
},
.probe = aic3x_i2c_probe,
.remove = aic3x_i2c_remove,