backlight: Convert from struct class_device to struct device

Convert the backlight and LCD classes from struct class_device
to struct device since class_device is scheduled for removal.

One nasty API break is the backlight power attribute has had to be
renamed to bl_power and the LCD power attribute has had to be renamed
to lcd_power since the original names clash with the core. I can't see
a way around this.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 8 insertions, 3 deletions

diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 1023ba0d6e55..c897c7b03858 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -69,8 +69,8 @@ struct backlight_device {
 
         /* The framebuffer notifier block */
         struct notifier_block fb_notif;
-        /* The class device structure */
-        struct class_device class_dev;
+
+        struct device dev;
 };
 
 static inline void backlight_update_status(struct backlight_device *bd)
@@ -85,6 +85,11 @@ extern struct backlight_device *backlight_device_register(const char *name,
         struct device *dev, void *devdata, struct backlight_ops *ops);
 extern void backlight_device_unregister(struct backlight_device *bd);
 
-#define to_backlight_device(obj) container_of(obj, struct backlight_device, class_dev)
+#define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)
+
+static inline void * bl_get_data(struct backlight_device *bl_dev)
+{
+        return dev_get_drvdata(&bl_dev->dev);
+}
 
 #endif