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misc: bh1780: probe from compatible string

Message ID 1380714407-22881-1-git-send-email-linus.walleij@linaro.org
State Accepted
Commit bc3426897652c05825f8fd5fc1727aac83a2d8bd
Headers show

Commit Message

Linus Walleij Oct. 2, 2013, 11:46 a.m. UTC 
Currently the BH1780GLI I2C driver relies on the device tree node
having the right name, but this is fragile. Use the compatible
string to probe the driver instead.

Cc: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/misc/bh1780gli.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c
index 057580e..48ea33d 100644
--- a/drivers/misc/bh1780gli.c
+++ b/drivers/misc/bh1780gli.c
@@ -23,6 +23,7 @@ 
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/of.h>
 
 #define BH1780_REG_CONTROL	0x80
 #define BH1780_REG_PARTID	0x8A
@@ -244,6 +245,15 @@  static const struct i2c_device_id bh1780_id[] = {
 	{ },
 };
 
+#ifdef CONFIG_OF
+static const struct of_device_id of_bh1780_match[] = {
+	{ .compatible = "rohm,bh1780gli", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, of_bh1780_match);
+#endif
+
 static struct i2c_driver bh1780_driver = {
 	.probe		= bh1780_probe,
 	.remove		= bh1780_remove,
@@ -251,6 +261,7 @@  static struct i2c_driver bh1780_driver = {
 	.driver = {
 		.name = "bh1780",
 		.pm	= &bh1780_pm,
+		.of_match_table = of_match_ptr(of_bh1780_match),
 	},
 };