[PATCH v3 10/15] dt-bindings: media: qcom,qcm2290-camss: Add OPE ISP subnode

[Loic Poulain]

Extend the qcm2290 CAMSS binding to describe CAMSS as a simple bus by
allowing child ISP nodes. Add the required address and size cells, as
well as ranges, and validate ISP subnodes against the existing
qcom,qcm2290-camss-ope schema.

On qcm2290 the OPE (Offline Processing Engine) is a memory-to-memory
ISP (Image Signal Processor).

The address-cells for the CAMSS bus is <2> (64-bit) as related
DMA/IOMMUs offer 36-bit addressing support.

Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/media/qcom,qcm2290-camss.yaml       | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml b/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml
index 391d0f6f67ef5fdfea31dd3683477561516b1556..e70f4cd1348b8065ee9f0e4448185cfd8a8fb7de 100644
--- a/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,qcm2290-camss.yaml
@@ -52,6 +52,14 @@ properties:
       - const: vfe1
       - const: vfe1_cphy_rx
 
+  "#address-cells":
+    const: 2
+
+  "#size-cells":
+    const: 2
+
+  ranges: true
+
   interrupts:
     maxItems: 8
 
@@ -117,6 +125,11 @@ properties:
             required:
               - data-lanes
 
+patternProperties:
+  "^isp@[0-9a-f]+$":
+    $ref: /schemas/media/qcom,qcm2290-camss-ope.yaml
+    unevaluatedProperties: false
+
 required:
   - compatible
   - reg

-- 
2.34.1