[PATCH 05/11] dt-bindings: spi: dw: Add Pensando Elba SoC SPI Controller bindings

[Brad Larson]

The Pensando Elba SoC has integrated the DW APB SPI Controller
and requires the property pensando,syscon-spics for access
to the spics control register.

Signed-off-by: Brad Larson <brad at pensando.io>
---
Change from V3:
- Add required property pensando,syscon-spics to go with
  pensando,elba-spi

 .../bindings/spi/snps,dw-apb-ssi.yaml           | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
index d7e08b03e204..41c3bbf5a55c 100644
--- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
+++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
@@ -37,6 +37,21 @@ allOf:
     else:
       required:
         - interrupts
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - pensando,elba-spi
+    then:
+      properties:
+        pensando,syscon-spics:
+          $ref: /schemas/types.yaml#/definitions/phandle
+          description:
+            Phandle to the system control device node which provides access to
+            the spics control register
+      required:
+        - pensando,syscon-spics
 
 properties:
   compatible:
@@ -73,6 +88,8 @@ properties:
               - renesas,r9a06g032-spi # RZ/N1D
               - renesas,r9a06g033-spi # RZ/N1S
           - const: renesas,rzn1-spi   # RZ/N1
+      - description: Pensando SoC SPI Controller
+        const: pensando,elba-spi
 
   reg:
     minItems: 1
-- 
2.17.1