diff options
| -rw-r--r-- | src/drivers/i2c/designware/dw_i2c.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/drivers/i2c/designware/dw_i2c.c b/src/drivers/i2c/designware/dw_i2c.c index 384cca5783..af769ca02e 100644 --- a/src/drivers/i2c/designware/dw_i2c.c +++ b/src/drivers/i2c/designware/dw_i2c.c @@ -379,7 +379,11 @@ int dw_i2c_transfer(unsigned int bus, } /* Set target slave address */ - write32(®s->target_addr, segments->slave); + if (read32(®s->target_addr) != segments->slave) { + dw_i2c_disable(regs); + write32(®s->target_addr, segments->slave); + dw_i2c_enable(regs); + } /* Read or write each byte in segment */ for (byte = 0; byte < segments->len; byte++) { |