iio: dac: ds4424: use fsleep() instead of usleep_range()

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The DS4422/DS4424 and DS4402/DS4404 datasheets do not specify a minimum
delay between power-up (POR) and the availability of the I2C interface.

The driver previously used `usleep_range(1000, 1200)` to enforce a ~1ms
delay. Replace this with `fsleep(1000)` to allow the kernel to select
the most efficient sleep mechanism while retaining the existing
conservative delay to ensure device readiness.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Oleksij Rempel 2026-02-10 14:51:04 +01:00 • committed by Jonathan Cameron

parent 3784044607

commit 5ff37a60b3

1 changed files with 8 additions and 1 deletions

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drivers/iio/dac/ds4424.c

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