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iio: adc: rockchip_saradc: add voltage notifier so get referenced voltage once at...
authorDavid Wu <david.wu@rock-chips.com>
Tue, 10 Aug 2021 01:10:07 +0000 (09:10 +0800)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 15 Aug 2021 15:58:37 +0000 (16:58 +0100)
commitcabd6e9cf22dc80544c3eb09c4169a05e94a6d3f
treebaf588840a587f6891cf2f1be7c007dbb1cb74f3tree | snapshot
parentb76d26d69ecc97ebb24aaf40427a13c808a4f488commit | diff
iio: adc: rockchip_saradc: add voltage notifier so get referenced voltage once at probe

Add voltage notifier, no need to query regulator voltage for
every saradc read, just get regulator voltage once at probe.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Simon Xue <xxm@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20210810011007.54066-1-xxm@rock-chips.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
drivers/iio/adc/rockchip_saradc.c diff | blob | history
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