diff options
Diffstat (limited to 'drivers/iio/adc/max11410.c')
| -rw-r--r-- | drivers/iio/adc/max11410.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/iio/adc/max11410.c b/drivers/iio/adc/max11410.c index fdc9f03135b5..e64cd979688d 100644 --- a/drivers/iio/adc/max11410.c +++ b/drivers/iio/adc/max11410.c @@ -413,13 +413,17 @@ static int max11410_sample(struct max11410_state *st, int *sample_raw, if (!ret) return -ETIMEDOUT; } else { + int ret2; + /* Wait for status register Conversion Ready flag */ - ret = read_poll_timeout(max11410_read_reg, ret, - ret || (val & MAX11410_STATUS_CONV_READY_BIT), + ret = read_poll_timeout(max11410_read_reg, ret2, + ret2 || (val & MAX11410_STATUS_CONV_READY_BIT), 5000, MAX11410_CONVERSION_TIMEOUT_MS * 1000, true, st, MAX11410_REG_STATUS, &val); if (ret) return ret; + if (ret2) + return ret2; } /* Read ADC Data */ @@ -850,17 +854,21 @@ static int max11410_init_vref(struct device *dev, static int max11410_calibrate(struct max11410_state *st, u32 cal_type) { - int ret, val; + int ret, ret2, val; ret = max11410_write_reg(st, MAX11410_REG_CAL_START, cal_type); if (ret) return ret; /* Wait for status register Calibration Ready flag */ - return read_poll_timeout(max11410_read_reg, ret, - ret || (val & MAX11410_STATUS_CAL_READY_BIT), - 50000, MAX11410_CALIB_TIMEOUT_MS * 1000, true, - st, MAX11410_REG_STATUS, &val); + ret = read_poll_timeout(max11410_read_reg, ret2, + ret2 || (val & MAX11410_STATUS_CAL_READY_BIT), + 50000, MAX11410_CALIB_TIMEOUT_MS * 1000, true, + st, MAX11410_REG_STATUS, &val); + if (ret) + return ret; + + return ret2; } static int max11410_self_calibrate(struct max11410_state *st) |