diff options
| author | Tom Rini <[email protected]> | 2021-08-23 09:17:07 -0400 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2021-08-23 09:17:07 -0400 |
| commit | 926fe46a6d9d3def405440227b0f77ed98ee2f9d (patch) | |
| tree | 760829c8df31cdebe7178a52e25935a2e2bd05ee /include | |
| parent | 3ee343cd7cc1eaa4e0b905ab3d8d0c764985d264 (diff) | |
| parent | c50b21b70523939c561d0455a2c423f63a9162ca (diff) | |
Merge tag 'for-v2021.10-rc3' of https://source.denx.de/u-boot/custodians/u-boot-i2c
i2c changes for for-v2021.10-rc3
new driver:
- Introduce mcp230xx support
from Sebastian Reichel
new feature:
- i2c-gpio: add support for "sda-gpios" + "scl-gpios" i2c-gpio bindings.
from Samuel Holland
- bootcount: add a new driver with syscon as backend
from Nandor Han
Diffstat (limited to 'include')
| -rw-r--r-- | include/i2c.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/i2c.h b/include/i2c.h index 8db34a67fee..3d9ecaba0b6 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -243,6 +243,20 @@ 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_reg_clrset() - Apply bitmask to an I2C register + * + * Read value, apply bitmask and write modified value back to the + * given address in an I2C chip + * + * @dev: Device to use for transfer + * @offset: Address for the R/W operation + * @clr: Bitmask of bits that should be cleared + * @set: Bitmask of bits that should be set + * @return 0 on success, -ve on error + */ +int dm_i2c_reg_clrset(struct udevice *dev, uint offset, u32 clr, u32 set); + +/** * dm_i2c_xfer() - Transfer messages over I2C * * This transfers a raw message. It is best to use dm_i2c_reg_read/write() |