[PATCH] media: dt-bindings: mediatek: Constrain iommus

[Krzysztof Kozlowski]

Lists should have fixed constraints, because binding must be specific in
respect to hardware.  Add missing constraints to number of iommus in
Mediatek media devices.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
---
 .../bindings/display/mediatek/mediatek,ovl-2l.yaml           | 5 ++---
 .../devicetree/bindings/display/mediatek/mediatek,ovl.yaml   | 5 ++---
 .../devicetree/bindings/display/mediatek/mediatek,rdma.yaml  | 4 +---
 .../devicetree/bindings/display/mediatek/mediatek,wdma.yaml  | 4 +---
 4 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
index bacdfe7d08a6..ac0d924a451b 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl-2l.yaml
@@ -45,9 +45,8 @@ properties:
       - description: OVL-2L Clock
 
   iommus:
-    description:
-      This property should point to the respective IOMMU block with master port as argument,
-      see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
+    minItems: 1
+    maxItems: 2
 
   mediatek,gce-client-reg:
     description: The register of client driver can be configured by gce with
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
index 4f110635afb6..c0fd0a91c4d8 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,ovl.yaml
@@ -65,9 +65,8 @@ properties:
       - description: OVL Clock
 
   iommus:
-    description:
-      This property should point to the respective IOMMU block with master port as argument,
-      see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
+    minItems: 1
+    maxItems: 2
 
   mediatek,gce-client-reg:
     description: The register of client driver can be configured by gce with
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
index 878f676b581f..7e5234def39a 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,rdma.yaml
@@ -64,9 +64,7 @@ properties:
       - description: RDMA Clock
 
   iommus:
-    description:
-      This property should point to the respective IOMMU block with master port as argument,
-      see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
+    maxItems: 1
 
   mediatek,rdma-fifo-size:
     description:
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
index a3a2b71a4523..276868c0fde7 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
@@ -43,9 +43,7 @@ properties:
       - description: WDMA Clock
 
   iommus:
-    description:
-      This property should point to the respective IOMMU block with master port as argument,
-      see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
+    maxItems: 1
 
   mediatek,gce-client-reg:
     description: The register of client driver can be configured by gce with
-- 
2.45.2