mfd: twl-core: Fix passing of platform data in the device tree case

Since we still need to rely on a mix of device tree initialized
drivers and legacy platform data initialize drivers, let's fix
the passing of platform data to twl4030-gpio.

As the twl4030 GPIO is initialized by twl-core.c, we need to register
the auxdata for twl4030 GPIO in twl-core.c.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 29473c2..d5b3dd8 100644 (file)
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -1133,6 +1133,11 @@ static int twl_remove(struct i2c_client *client)
        return 0;
 }
 
+static struct of_dev_auxdata twl_auxdata_lookup[] = {
+       OF_DEV_AUXDATA("ti,twl4030-gpio", 0, "twl4030-gpio", NULL),
+       { /* sentinel */ },
+};
+
 /* NOTE: This driver only handles a single twl4030/tps659x0 chip */
 static int
 twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
@@ -1271,10 +1276,14 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
                twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
        }
 
-       if (node)
-               status = of_platform_populate(node, NULL, NULL, &client->dev);
-       else
+       if (node) {
+               if (pdata)
+                       twl_auxdata_lookup[0].platform_data = pdata->gpio;
+               status = of_platform_populate(node, NULL, twl_auxdata_lookup,
+                                             &client->dev);
+       } else {
                status = add_children(pdata, irq_base, id->driver_data);
+       }
 
 fail:
        if (status < 0)