Hello Simon,
Am 16.05.2015 23:01, schrieb Simon Glass:
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 <[email protected]>
---
drivers/i2c/i2c-uclass-compat.c | 21 +++++++++++++++++++++
include/i2c.h | 6 ++++++
2 files changed, 27 insertions(+)
Acked-by: Heiko Schocher <[email protected]>
Thanks!
bye,
Heiko
diff --git a/drivers/i2c/i2c-uclass-compat.c b/drivers/i2c/i2c-uclass-compat.c
index 223f238..5606d1f 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 ddfebc4..9300d97 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
/*
--
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