[PATCH v4 07/34] dt-bindings: pinctrl: qcom,tlmm-common: add common check for function

[Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>]

Certain pins, like SDcard related, do not have functions and such should
not be required.  Add a check for this in common Qualcomm TLMM pin
controller schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Reviewed-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Reviewed-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
 .../bindings/pinctrl/qcom,tlmm-common.yaml    | 20 +++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,tlmm-common.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,tlmm-common.yaml
index c88c8dcb69d9..e1354f0c64f8 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,tlmm-common.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,tlmm-common.yaml
@@ -65,10 +65,6 @@ additionalProperties: true
 
 $defs:
   qcom-tlmm-state:
-    allOf:
-      - $ref: pincfg-node.yaml#
-      - $ref: pinmux-node.yaml#
-
     properties:
       drive-strength:
         enum: [2, 4, 6, 8, 10, 12, 14, 16]
@@ -82,5 +78,21 @@ $defs:
       output-high: true
       output-low: true
 
+    allOf:
+      - $ref: pincfg-node.yaml#
+      - $ref: pinmux-node.yaml#
+
+      - if:
+          properties:
+            pins:
+              items:
+                pattern: "^gpio"
+        then:
+          required:
+            - function
+        else:
+          properties:
+            function: false
+
     additionalProperties: true
 ...
-- 
2.34.1