diff options
| author | Beniamin Bia <beniamin.bia@analog.com> | 2019-07-18 09:27:32 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-07-28 10:54:32 +0300 |
| commit | c5d93137af93c228392d133b3b00a0edae80dd40 (patch) | |
| tree | 9fbaa3bb259e56b23bdb9d99b0b626f6f1ad2d62 /drivers | |
| parent | a0c648c07ce50744d0f6ddb58b483e87907e9122 (diff) | |
| download | linux-c5d93137af93c228392d133b3b00a0edae80dd40.tar.xz | |
iio: adc: ad7606: Allow reconfigration after reset
According to datasheet, ad7616 require at least 15ms after a restart
to fully reconfigure and being able to receive new commands via spi.
Signed-off-by: Beniamin Bia <beniamin.bia@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/adc/ad7606.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c index 9eec3db01a17..a6034cf7238a 100644 --- a/drivers/iio/adc/ad7606.c +++ b/drivers/iio/adc/ad7606.c @@ -594,6 +594,10 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address, if (ret) dev_warn(st->dev, "failed to RESET: no RESET GPIO specified\n"); + /* AD7616 requires al least 15ms to reconfigure after a reset */ + if (msleep_interruptible(15)) + return -ERESTARTSYS; + st->write_scale = ad7606_write_scale_hw; st->write_os = ad7606_write_os_hw; |