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iio: frequency: adrf6780: replace usleep_range() with fsleep()

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The ADRF6780 datasheet (Rev. D, page 23, ADC section) says:
"Wait approximately 200 us for the ADC to be ready."

fsleep(200) expands to the same usleep_range(200, 250). Use the
flexible sleep helper, which picks the right primitive for the
given microsecond delay.

Replace the generic "Recommended delay for the ADC to be ready"
comment with the datasheet reference so the "why" of the wait is
visible at the call site.

No functional change.

Signed-off-by: Stepan Ionichev <sozdayvek@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Joshua Crofts <joshua.crofts1@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Stepan Ionichev 2026-05-11 10:44:41 +05:00 committed by Jonathan Cameron
parent a67d263922
commit af74304c9f
1 changed files with 5 additions and 2 deletions
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7
drivers/iio/frequency/adrf6780.c
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@ -188,8 +188,11 @@ static int adrf6780_read_adc_raw(struct adrf6780_state *st, unsigned int *read_v
if (ret)
goto exit;
/* Recommended delay for the ADC to be ready*/
usleep_range(200, 250);
/*
* Per ADRF6780 datasheet (Rev. D, page 23, ADC section),
* wait approximately 200 us for the ADC to be ready.
*/
fsleep(200);
ret = __adrf6780_spi_read(st, ADRF6780_REG_ADC_OUTPUT, read_val);
if (ret)