Add u8 i2c read/write hooks.
Signed-off-by: Keerthy j-keerthy@ti.com Reviewed-by: Tom Rini trini@konsulko.com --- drivers/i2c/i2c-uclass.c | 10 ++++++++++ include/i2c.h | 24 ++++++++++++++++++++++++ 2 files changed, 34 insertions(+)
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c index dbd3789..6ce5d9a 100644 --- a/drivers/i2c/i2c-uclass.c +++ b/drivers/i2c/i2c-uclass.c @@ -231,6 +231,16 @@ int dm_i2c_reg_write(struct udevice *dev, uint offset, uint value) return dm_i2c_write(dev, offset, &val, 1); }
+int dm_i2c_u8_read(struct udevice *dev, uint offset, u8 *val) +{ + return dm_i2c_read(dev, offset, val, 1); +} + +int dm_i2c_u8_write(struct udevice *dev, uint offset, u8 *val) +{ + return dm_i2c_write(dev, offset, val, 1); +} + /** * i2c_probe_chip() - probe for a chip on a bus * diff --git a/include/i2c.h b/include/i2c.h index d500445..c3059ad 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -191,6 +191,30 @@ int dm_i2c_reg_read(struct udevice *dev, uint offset); int dm_i2c_reg_write(struct udevice *dev, uint offset, unsigned int val);
/** + * dm_i2c_u8_read() - Read a byte value from an I2C register + * + * This reads a single value from the given address in an I2C chip + * + * @dev: Device to use for transfer + * @addr: Address to read from + * @val: Value read is stored in val + * @return 0 for success, -ve on error + */ +int dm_i2c_u8_read(struct udevice *dev, uint offset, u8 *val); + +/** + * dm_i2c_u8_write() - Write a byte value to an I2C register + * + * This writes a single value to the given address in an I2C chip + * + * @dev: Device to use for transfer + * @addr: Address to write to + * @val: Value to write + * @return 0 on success, -ve on error + */ +int dm_i2c_u8_write(struct udevice *dev, uint offset, u8 *val); + +/** * dm_i2c_xfer() - Transfer messages over I2C * * This transfers a raw message. It is best to use dm_i2c_reg_read/write()