diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/i2c-uclass.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c index c5a3c4e2016..975318e5f25 100644 --- a/drivers/i2c/i2c-uclass.c +++ b/drivers/i2c/i2c-uclass.c @@ -347,6 +347,17 @@ int i2c_get_chip_for_busnum(int busnum, int chip_addr, uint offset_len, debug("Cannot find I2C bus %d\n", busnum); return ret; } + + /* detect the presence of the chip on the bus */ + ret = i2c_probe_chip(bus, chip_addr, 0); + debug("%s: bus='%s', address %02x, ret=%d\n", __func__, bus->name, + chip_addr, ret); + if (ret) { + debug("Cannot detect I2C chip %02x on bus %d\n", chip_addr, + busnum); + return ret; + } + ret = i2c_get_chip(bus, chip_addr, offset_len, devp); if (ret) { debug("Cannot find I2C chip %02x on bus %d\n", chip_addr, |