diff options
| author | Simon Glass <sjg@chromium.org> | 2015-05-16 15:01:41 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-06-10 19:26:54 -0600 |
| commit | a2879764ba392229dc7aba89951e74524750af18 (patch) | |
| tree | 142fc50a5e76f5dab76fa154463fc0fd8577d3a9 | |
| parent | b2016133edec9ece02dca7881e2e0c059d2b421c (diff) | |
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>
| -rw-r--r-- | drivers/i2c/i2c-uclass-compat.c | 21 | ||||
| -rw-r--r-- | include/i2c.h | 6 |
2 files changed, 27 insertions, 0 deletions
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 /* |