[PATCH v3 1/2] dt-bindings: pinctrl: Add rk3576 pinctrl bindings

[Detlev Casanova <detlev.casanova@collabora.com>]

Add the compatible string as well as the rockchip,sys-grf field which is
only used on this SoC.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
---
 .../bindings/pinctrl/rockchip,pinctrl.yaml     | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
index 20e806dce1ecb..28f8dc412cf92 100644
--- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
@@ -45,6 +45,7 @@ properties:
       - rockchip,rk3368-pinctrl
       - rockchip,rk3399-pinctrl
       - rockchip,rk3568-pinctrl
+      - rockchip,rk3576-pinctrl
       - rockchip,rk3588-pinctrl
       - rockchip,rv1108-pinctrl
       - rockchip,rv1126-pinctrl
@@ -62,6 +63,12 @@ properties:
       Required for at least rk3188 and rk3288. On the rk3368 this should
       point to the PMUGRF syscon.
 
+  rockchip,sys-grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The phandle of the syscon node for the SYS GRF registers.
+      It is used on rk3576 for i3c software controlled weak pull-up.
+
   "#address-cells":
     enum: [1, 2]
 
@@ -72,6 +79,17 @@ properties:
 
 allOf:
   - $ref: pinctrl.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: rockchip,rk3576-pinctrl
+    then:
+      required:
+        - rockchip,sys-grf
+    else:
+      properties:
+        rockchip,sys-grf: false
 
 required:
   - compatible
-- 
2.46.0