ASoC: da9055: Fix device registration of PMIC and CODEC devices

Currently the I2C device Ids conflict for the MFD and CODEC so
cannot be both instantiated on one platform. This patch updates
the Ids and names to make them unique from each other.

It should be noted that the I2C addresses for both PMIC and CODEC
are modifiable so instantiation of the two are kept as separate
devices, rather than instantiating the CODEC from the MFD code.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

diff --git a/drivers/mfd/da9055-i2c.c b/drivers/mfd/da9055-i2c.c
index 13af7e50021eedd5767aa296cfe46118f55f49ac..8103e4362132a24486961bf3ac6fd80980210107 100644 (file)
--- a/drivers/mfd/da9055-i2c.c
+++ b/drivers/mfd/da9055-i2c.c
@@ -53,17 +53,25 @@ static int da9055_i2c_remove(struct i2c_client *i2c)
        return 0;
 }
 
+/*
+ * DO NOT change the device Ids. The naming is intentionally specific as both
+ * the PMIC and CODEC parts of this chip are instantiated separately as I2C
+ * devices (both have configurable I2C addresses, and are to all intents and
+ * purposes separate). As a result there are specific DA9055 ids for PMIC
+ * and CODEC, which must be different to operate together.
+ */
 static struct i2c_device_id da9055_i2c_id[] = {
-       {"da9055", 0},
+       {"da9055-pmic", 0},
        { }
 };
+MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
 
 static struct i2c_driver da9055_i2c_driver = {
        .probe = da9055_i2c_probe,
        .remove = da9055_i2c_remove,
        .id_table = da9055_i2c_id,
        .driver = {
-               .name = "da9055",
+               .name = "da9055-pmic",
                .owner = THIS_MODULE,
        },
 };

diff --git a/sound/soc/codecs/da9055.c b/sound/soc/codecs/da9055.c
index 52b79a487ac7db318dd252fe30befd6a3c56b2ec..422812613a28b1cff117b1adfee2029b69e6049b 100644 (file)
--- a/sound/soc/codecs/da9055.c
+++ b/sound/soc/codecs/da9055.c
@@ -1523,8 +1523,15 @@ static int da9055_remove(struct i2c_client *client)
        return 0;
 }
 
+/*
+ * DO NOT change the device Ids. The naming is intentionally specific as both
+ * the CODEC and PMIC parts of this chip are instantiated separately as I2C
+ * devices (both have configurable I2C addresses, and are to all intents and
+ * purposes separate). As a result there are specific DA9055 Ids for CODEC
+ * and PMIC, which must be different to operate together.
+ */
 static const struct i2c_device_id da9055_i2c_id[] = {
-       { "da9055", 0 },
+       { "da9055-codec", 0 },
        { }
 };
 MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
@@ -1532,7 +1539,7 @@ MODULE_DEVICE_TABLE(i2c, da9055_i2c_id);
 /* I2C codec control layer */
 static struct i2c_driver da9055_i2c_driver = {
        .driver = {
-               .name = "da9055",
+               .name = "da9055-codec",
                .owner = THIS_MODULE,
        },
        .probe          = da9055_i2c_probe,