iio: adc: aspeed: Add compensation phase.

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This patch adds a compensation phase to improve the accuracy of ADC
measurement. This is the built-in function through input half of the
reference voltage to get the ADC offset.

Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Link: https://lore.kernel.org/r/20210922081520.30580-10-billy_tsai@aspeedtech.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

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Billy Tsai 2021-09-22 16:15:18 +08:00 • committed by Jonathan Cameron

parent 13d4f9df33

commit f2836e8c4c

1 changed files with 53 additions and 1 deletions

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drivers/iio/adc/aspeed_adc.c

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