linux-kernel - [PATCH v13 03/15] dt-bindings: spi: cdns: Add compatible for AMD Pensando Elba SoC

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Message-ID: <20230410184526.15990-4-blarson@amd.com>
Date:   Mon, 10 Apr 2023 11:45:14 -0700
From:   Brad Larson <blarson@....com>
To:     <linux-arm-kernel@...ts.infradead.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <linux-spi@...r.kernel.org>, <adrian.hunter@...el.com>,
        <alcooperx@...il.com>, <andy.shevchenko@...il.com>,
        <arnd@...db.de>, <blarson@....com>, <brendan.higgins@...ux.dev>,
        <briannorris@...omium.org>, <brijeshkumar.singh@....com>,
        <catalin.marinas@....com>, <davidgow@...gle.com>,
        <gsomlo@...il.com>, <gerg@...ux-m68k.org>, <krzk@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <lee@...nel.org>,
        <lee.jones@...aro.org>, <broonie@...nel.org>,
        <yamada.masahiro@...ionext.com>, <p.zabel@...gutronix.de>,
        <piotrs@...ence.com>, <p.yadav@...com>, <rdunlap@...radead.org>,
        <robh+dt@...nel.org>, <samuel@...lland.org>,
        <fancer.lancer@...il.com>, <skhan@...uxfoundation.org>,
        <suravee.suthikulpanit@....com>, <thomas.lendacky@....com>,
        <tonyhuang.sunplus@...il.com>, <ulf.hansson@...aro.org>,
        <vaishnav.a@...com>, <will@...nel.org>,
        <devicetree@...r.kernel.org>
Subject: [PATCH v13 03/15] dt-bindings: spi: cdns: Add compatible for AMD Pensando Elba SoC

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@....com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---

v11 changes:
- Removed redundant if/then for amd,pensando-elba-qspi

v10 changes:
- Fix cdns,fifo-depth, only amd,pensando-elba-qspi is 1024 bytes

v9 changes:
- Add 1024 to cdns,fifo-depth property to resolve dtbs_check error

---
 .../bindings/spi/cdns,qspi-nor.yaml           | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
index 5c01db128be0..6e67de9da293 100644
--- a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
@@ -20,11 +20,28 @@ allOf:
       required:
         - power-domains
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: amd,pensando-elba-qspi
+    then:
+      properties:
+        cdns,fifo-depth:
+          enum: [ 128, 256, 1024 ]
+          default: 1024
+    else:
+      properties:
+        cdns,fifo-depth:
+          enum: [ 128, 256 ]
+          default: 128
+
 properties:
   compatible:
     oneOf:
       - items:
           - enum:
+              - amd,pensando-elba-qspi
               - ti,k2g-qspi
               - ti,am654-ospi
               - intel,lgm-qspi
@@ -48,8 +65,6 @@ properties:
     description:
       Size of the data FIFO in words.
     $ref: /schemas/types.yaml#/definitions/uint32
-    enum: [ 128, 256 ]
-    default: 128
 
   cdns,fifo-width:
     $ref: /schemas/types.yaml#/definitions/uint32
-- 
2.17.1