linux-kernel - [PATCH] dt-bindings: mmc: synopsys-dw-mshc: add iommus for Intel SocFPGA

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Date:   Sat,  9 Dec 2023 18:10:13 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH] dt-bindings: mmc: synopsys-dw-mshc: add iommus for Intel SocFPGA

The DW MSHC node in Intel SocFPGA ARM64 DTS has iommus property, so
allow it to silence dtbs_check warnings:

  socfpga_n5x_socdk.dtb: mmc@...08000: Unevaluated properties are not allowed ('iommus' was unexpected)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

---

I assume the DTS represents the hardware, thus iommus is real.
---
 Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml
index b13b5166d20a..a6292777e376 100644
--- a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml
+++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.yaml
@@ -35,6 +35,9 @@ properties:
       - const: biu
       - const: ciu
 
+  iommus:
+    maxItems: 1
+
   altr,sysmgr-syscon:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     items:
@@ -62,6 +65,7 @@ allOf:
         altr,sysmgr-syscon: true
     else:
       properties:
+        iommus: false
         altr,sysmgr-syscon: false
 
 required:
-- 
2.34.1