X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=drivers%2Fi2c%2Fi2c-uclass-compat.c;h=de78db6a887f3a4bc74a0486e2ee634c98775057;hb=e9a98ba312a325b6af1a9b75b3ce0ab0232dc614;hp=223f238f4bed0cc475743c94931ed25fd2a2427b;hpb=8e3da9dd113699eed2fa05fcde3c55a2ff410913;p=people%2Fms%2Fu-boot.git

diff --git a/drivers/i2c/i2c-uclass-compat.c b/drivers/i2c/i2c-uclass-compat.c
index 223f238f4b..de78db6a88 100644
--- a/drivers/i2c/i2c-uclass-compat.c
+++ b/drivers/i2c/i2c-uclass-compat.c
@@ -9,7 +9,7 @@
 #include <errno.h>
 #include <i2c.h>
 
-static int cur_busnum;
+static int cur_busnum __attribute__((section(".data")));
 
 static int i2c_compat_get_device(uint chip_addr, int alen,
 				 struct udevice **devp)
@@ -106,3 +106,24 @@ void board_i2c_init(const void *blob)
 {
 	/* Nothing to do here - the init happens through driver model */
 }
+
+uint8_t i2c_reg_read(uint8_t chip_addr, uint8_t offset)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = i2c_compat_get_device(chip_addr, 1, &dev);
+	if (ret)
+		return 0xff;
+	return dm_i2c_reg_read(dev, offset);
+}
+
+void i2c_reg_write(uint8_t chip_addr, uint8_t offset, uint8_t val)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = i2c_compat_get_device(chip_addr, 1, &dev);
+	if (!ret)
+		dm_i2c_reg_write(dev, offset, val);
+}