iio: adc: ad7944: use spi_optimize_message()

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This modifies the ad7944 driver to use spi_optimize_message() to reduce
CPU usage and increase the max sample rate by avoiding repeating
validation of the spi message on each transfer.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20240328-ad7944-spi-optimize-message-v2-1-a142b2576379@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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David Lechner 2024-03-28 16:16:59 -05:00 • committed by Jonathan Cameron

parent 27eea4778d

commit 6020ca4de8

1 changed files with 103 additions and 74 deletions

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drivers/iio/adc/ad7944.c

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