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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>
This commit is contained in:
Beniamin Bia 2019-07-18 09:27:32 +03:00 committed by Jonathan Cameron
parent a0c648c07c
commit c5d93137af
1 changed files with 4 additions and 0 deletions
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4
drivers/iio/adc/ad7606.c
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@ -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;