diff options
Diffstat (limited to 'drivers/i2c/busses')
| -rw-r--r-- | drivers/i2c/busses/i2c-mxs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index 65a21fed08b..07e1be6f899 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -307,6 +307,9 @@ static int mxs_i2c_pio_wait_xfer_end(struct mxs_i2c_dev *i2c) unsigned long timeout = jiffies + msecs_to_jiffies(1000); while (readl(i2c->regs + MXS_I2C_CTRL0) & MXS_I2C_CTRL0_RUN) { + if (readl(i2c->regs + MXS_I2C_CTRL1) & + MXS_I2C_CTRL1_NO_SLAVE_ACK_IRQ) + return -ENXIO; if (time_after(jiffies, timeout)) return -ETIMEDOUT; cond_resched(); |