diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-uclass.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c index 04c88503a2..db1c9d9462 100644 --- a/drivers/i2c/i2c-uclass.c +++ b/drivers/i2c/i2c-uclass.c @@ -247,6 +247,21 @@ int dm_i2c_reg_write(struct udevice *dev, uint offset, uint value) return dm_i2c_write(dev, offset, &val, 1); } +int dm_i2c_reg_clrset(struct udevice *dev, uint offset, u32 clr, u32 set) +{ + uint8_t val; + int ret; + + ret = dm_i2c_read(dev, offset, &val, 1); + if (ret < 0) + return ret; + + val &= ~clr; + val |= set; + + return dm_i2c_write(dev, offset, &val, 1); +} + /** * i2c_probe_chip() - probe for a chip on a bus * |