[PATCH v9 03/15] dt-bindings: spi: cdns: Add compatible for AMD Pensando Elba SoC

[Brad Larson]

Document the cadence qspi controller compatible for AMD Pensando
Elba SoC boards.  The Elba qspi fifo size is 1024.

Signed-off-by: Brad Larson <blarson at amd.com>

---

Changes since v6:
- Add 1024 to cdns,fifo-depth property to resolve dtbs_check error

---
 .../devicetree/bindings/spi/cdns,qspi-nor.yaml     | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
index 4707294d8f59..a6556854234f 100644
--- a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
@@ -20,11 +20,23 @@ allOf:
       required:
         - power-domains
 
+  - if:
+      properties:
+        compatible:
+          enum:
+            - amd,pensando-elba-qspi
+    then:
+      properties:
+        cdns,fifo-depth:
+          enum: [ 128, 256, 1024 ]
+          default: 1024
+
 properties:
   compatible:
     oneOf:
       - items:
           - enum:
+              - amd,pensando-elba-qspi
               - ti,k2g-qspi
               - ti,am654-ospi
               - intel,lgm-qspi
@@ -48,7 +60,7 @@ properties:
     description:
       Size of the data FIFO in words.
     $ref: "/schemas/types.yaml#/definitions/uint32"
-    enum: [ 128, 256 ]
+    enum: [ 128, 256, 1024 ]
     default: 128
 
   cdns,fifo-width:
-- 
2.17.1