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dt-bindings: iio: adc: rockchip-saradc: Allow use of a power-domain

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The SARADC controller in most Rockchip SoCs are part of power domains
that are always powered on, i.e. PD_BUS or PD_PERI. These always powered
on power domains have typically not been described in the device tree.

Because these power domains have been left out of the device tree there
has not been any real need to properly describe the power domain of the
SARADC controller.

On RK3528 the SARADC controller is part of the PD_VPU power domain.

Add support to describe an optional power-domains for the SARADC
controller in Rockchip SoCs.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250723085654.2273324-4-jonas@kwiboo.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jonas Karlman 2025-07-23 08:56:45 +00:00 committed by Jonathan Cameron
parent d75c7021c0
commit 83d76bf036
1 changed files with 3 additions and 0 deletions
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3
Documentation/devicetree/bindings/iio/adc/rockchip-saradc.yaml
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@ -47,6 +47,9 @@ properties:
- const: saradc
- const: apb_pclk
power-domains:
maxItems: 1
resets:
maxItems: 1