[PATCH v6 03/17] dt-bindings: spi: cdns: Add compatible for AMD Pensando Elba SoC

[Brad Larson]

From: Brad Larson <blarson at amd.com>

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>
---
 .../devicetree/bindings/spi/cdns,qspi-nor.yaml       | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
index 4707294d8f59..b9e49e90e280 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
-- 
2.17.1