From: Grazvydas Ignotas <notasas@gmail.com>
Date: Sun, 22 May 2016 21:54:43 +0000 (+0300)
Subject: mfd: twl-core: add a way to register dependent device
X-Git-Tag: sz_175~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38541a7671598dfc9c1f66b994339b59574c06d9;p=pandora-kernel.git

mfd: twl-core: add a way to register dependent device

Need to add a regulator after other twl regulators are added but before
other devices probe.
---

diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
index 9b1df0baad34..ce83245c79c9 100644
--- a/drivers/mfd/twl-core.c
+++ b/drivers/mfd/twl-core.c
@@ -1389,6 +1389,16 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	}
 
 	status = add_children(pdata, id->driver_data);
+	if (status < 0)
+		goto fail;
+
+	if (pdata->dep_device) {
+		ret = platform_device_register(pdata->dep_device);
+		if (ret != 0)
+			dev_err(&client->dev,
+				"failed to register dep_device: %d\n", ret);
+	}
+
 fail:
 	if (status < 0)
 		twl_remove(client);
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index f1a95c24219c..e33545493afd 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -754,6 +754,9 @@ struct twl4030_platform_data {
 	struct regulator_init_data		*smps3;
 	struct regulator_init_data		*smps4;
 	struct regulator_init_data		*vio6025;
+
+	/* device that needs to probe early and after twl */
+	struct platform_device			*dep_device;
 };
 
 struct twl_regulator_driver_data {