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>

1 files changed, 31 insertions, 0 deletions

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 01485bd51404..5708a973a776 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 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
 {
         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 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
         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 @@ static int aic3x_i2c_remove(struct i2c_client *client)
         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,