Add a unique hardware GPIO ID to the Rockchip GPIO nodes with the "rockchip,gpio-controller" property to be independent from aliases and probe order. "gpio-ranges" can't be used for that, because there is no semantic restrictions on how they are set up. Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx> --- See discussion: https://lore.kernel.org/u-boot/CACRpkdZx8EaSFLeh4vruRsdC+Sx_ieBiKmuE7t37zhiYqtS3WQ@xxxxxxxxxxxxxx/ --- .../devicetree/bindings/gpio/rockchip,gpio-bank.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml index 2e9a5179c..39ac41e9d 100644 --- a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml +++ b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml @@ -52,6 +52,12 @@ properties: gpio-line-names: true + rockchip,gpio-controller: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 8 + description: + Unique hardware GPIO ID. + "#gpio-cells": const: 2 -- 2.20.1
