[PATCH V3 2/2] dt-bindings: pinctrl: brcm,ns-pinmux: describe pins, groups & functions

["Rafał Miłecki" <zajec5@gmail.com>]

From: Rafał Miłecki <rafal@milecki.pl>

Use and extend generic pinctrl binding to include info about pins,
groups & functions.

Northstar platform pins have numbers assigned to them (they are needed
for mux programming) so add a custom "number" property for that.

Extend example to provide a complete binding of a single / random
function.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
 .../bindings/pinctrl/brcm,ns-pinmux.yaml      | 38 ++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,ns-pinmux.yaml b/Documentation/devicetree/bindings/pinctrl/brcm,ns-pinmux.yaml
index 8d1e5b1cdd5f..82d3e52a2229 100644
--- a/Documentation/devicetree/bindings/pinctrl/brcm,ns-pinmux.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,ns-pinmux.yaml
@@ -30,6 +30,20 @@ properties:
   reg-names:
     const: cru_gpio_control
 
+  pins:
+    type: object
+
+    patternProperties:
+      "^.*$":
+        type: object
+
+        properties:
+          number:
+            description: Pin number
+            $ref: /schemas/types.yaml#/definitions/uint32
+
+        unevaluatedProperties: false
+
 patternProperties:
   '-pins$':
     type: object
@@ -74,7 +88,7 @@ required:
   - reg
   - reg-names
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |
@@ -83,6 +97,28 @@ examples:
         reg = <0x1800c1c0 0x24>;
         reg-names = "cru_gpio_control";
 
+        pins {
+            i2c_scl: i2c_scl {
+                number = <4>;
+            };
+
+            i2c_sda: i2c_sda {
+                number = <5>;
+            };
+        };
+
+        groups {
+            i2c_grp: i2c_grp {
+                pins = <&i2c_scl &i2c_sda>;
+            };
+        };
+
+        functions {
+            i2c {
+                groups = <&i2c_grp>;
+            };
+        };
+
         spi-pins {
             function = "spi";
             groups = "spi_grp";
-- 
2.31.1