From: Simon Glass <sjg@chromium.org>
Date: Sat, 16 May 2015 21:01:41 +0000 (-0600)
Subject: dm: i2c: Add compatibility functions for dm_i2c_reg_read/write()
X-Git-Tag: v2015.07-rc3~89^2~15
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=a2879764ba392229dc7aba89951e74524750af18;p=u-boot

dm: i2c: Add compatibility functions for dm_i2c_reg_read/write()

Add the legacy i2c_reg_read/write() functions to the compatibility layer
so that they can be used when CONFIG_DM_I2C_COMPAT is defined.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
---

diff --git a/drivers/i2c/i2c-uclass-compat.c b/drivers/i2c/i2c-uclass-compat.c
index 223f238f4b..5606d1f807 100644
--- a/drivers/i2c/i2c-uclass-compat.c
+++ b/drivers/i2c/i2c-uclass-compat.c
@@ -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);
+}
diff --git a/include/i2c.h b/include/i2c.h
index ddfebc4107..9300d97e14 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -284,6 +284,12 @@ void i2c_init(int speed, int slaveaddr);
  */
 void board_i2c_init(const void *blob);
 
+/*
+ * Compatibility functions for driver model.
+ */
+uint8_t i2c_reg_read(uint8_t addr, uint8_t reg);
+void i2c_reg_write(uint8_t addr, uint8_t reg, uint8_t val);
+
 #endif
 
 /*