From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

On SM8750 specifically, the TLMM block register space contains a number
of gates that forward the system XO (reference) clock to various IP
blocks.

Allow '#clock-cells' (since it provides clocks) and 'clocks' (so that
the parent clock may be consumed and linked with the clocks provided).

Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 .../devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml        | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml
index 7aecc97745a8..136366d89290 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm8750-tlmm.yaml
@@ -19,6 +19,10 @@ properties:
   compatible:
     const: qcom,sm8750-tlmm
 
+  clocks:
+    items:
+      - description: RPMh XO clock
+
   reg:
     maxItems: 1
 
@@ -32,6 +36,9 @@ properties:
   gpio-line-names:
     maxItems: 215
 
+  '#clock-cells':
+    const: 1
+
 patternProperties:
   "-state$":
     oneOf:
@@ -100,6 +107,8 @@ $defs:
 required:
   - compatible
   - reg
+  - clocks
+  - '#clock-cells'
 
 unevaluatedProperties: false
 
@@ -109,6 +118,7 @@ examples:
     tlmm: pinctrl@f100000 {
         compatible = "qcom,sm8750-tlmm";
         reg = <0x0f100000 0x300000>;
+        clocks = <&rpmhcc_xo>;
         gpio-controller;
         #gpio-cells = <2>;
         gpio-ranges = <&tlmm 0 0 216>;
@@ -116,6 +126,8 @@ examples:
         #interrupt-cells = <2>;
         interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
 
+        #clock-cells = <1>;
+
         gpio-wo-state {
             pins = "gpio1";
             function = "gpio";

-- 
2.52.0