[PATCH] spi: dt-bindings: qcom,spi-qcom-qspi: document OPP and power-domains

[Krzysztof Kozlowski]

QSPI on Qualcomm SDM845, SC7180 and SC7280 SoCs uses OPP table (both in
DTS and Linux driver) and is suuplied by CX power domain.  Document
missing properties to fix:

  sc7280-idp2.dtb: spi@88dc000: Unevaluated properties are not allowed ('operating-points-v2', 'power-domains' were unexpected)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
 .../devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml          | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml
index e94d915e28c8..ee8f7ea907b0 100644
--- a/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml
+++ b/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml
@@ -52,6 +52,11 @@ properties:
       - const: qspi-config
       - const: qspi-memory
 
+  operating-points-v2: true
+
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg
-- 
2.34.1