mfd: Add WM8350 subdevice registration helper

Most of the subdevices for the WM8350 code are registered in the same
fashion so factor out the code to do the initial registration.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 9a1a0b2b581e..cd1f76efed4e 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1130,6 +1130,32 @@ out:
 }
 EXPORT_SYMBOL_GPL(wm8350_create_cache);
 
+/*
+ * Register a client device.  This is non-fatal since there is no need to
+ * fail the entire device init due to a single platform device failing.
+ */
+static void wm8350_client_dev_register(struct wm8350 *wm8350,
+                                       const char *name,
+                                       struct platform_device **pdev)
+{
+        int ret;
+
+        *pdev = platform_device_alloc(name, -1);
+        if (pdev == NULL) {
+                dev_err(wm8350->dev, "Failed to allocate %s\n", name);
+                return;
+        }
+
+        (*pdev)->dev.parent = wm8350->dev;
+        platform_set_drvdata(*pdev, wm8350);
+        ret = platform_device_add(*pdev);
+        if (ret != 0) {
+                dev_err(wm8350->dev, "Failed to register %s: %d\n", name, ret);
+                platform_device_put(*pdev);
+                *pdev = NULL;
+        }
+}
+
 int wm8350_device_init(struct wm8350 *wm8350, int irq,
                        struct wm8350_platform_data *pdata)
 {