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Subject[PATCH v4 2/7] dt-bindings: gpio: rockchip,gpio-bank: add unique hardware GPIO ID
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@gmail.com>
---

See discussion:
https://lore.kernel.org/u-boot/CACRpkdZx8EaSFLeh4vruRsdC+Sx_ieBiKmuE7t37zhiYqtS3WQ@mail.gmail.com/
---
.../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
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