drivers/video/backlight/platform_lcd.c: add support for device tree based probe

This patch adds the of_match_table to platform-lcd driver to be
probed when platform-lcd device node is found in the device tree.

[[email protected]: include of.h]
Signed-off-by: Jingoo Han <[email protected]>
Cc: Richard Purdie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: Jingoo Han

Diff for: drivers/video/backlight/platform_lcd.c

@@ -16,6 +16,7 @@
 #include <linux/fb.h>
 #include <linux/backlight.h>
 #include <linux/lcd.h>
+#include <linux/of.h>
 #include <linux/slab.h>
 
 #include <video/platform_lcd.h>
@@ -145,13 +146,22 @@ static SIMPLE_DEV_PM_OPS(platform_lcd_pm_ops, platform_lcd_suspend,
 			platform_lcd_resume);
 #endif
 
+#ifdef CONFIG_OF
+static const struct of_device_id platform_lcd_of_match[] = {
+	{ .compatible = "platform-lcd" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, platform_lcd_of_match);
+#endif
+
 static struct platform_driver platform_lcd_driver = {
 	.driver		= {
 		.name	= "platform-lcd",
 		.owner	= THIS_MODULE,
 #ifdef CONFIG_PM
 		.pm	= &platform_lcd_pm_ops,
 #endif
+		.of_match_table = of_match_ptr(platform_lcd_of_match),
 	},
 	.probe		= platform_lcd_probe,
 	.remove		= __devexit_p(platform_lcd_remove),