linux-kernel - [PATCH v14 03/15] dt-bindings: spi: cdns: Add compatible for AMD Pensando Elba SoC

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Message-ID: <20230418214945.54690-1-blarson@amd.com>
Date:   Tue, 18 Apr 2023 14:49:45 -0700
From:   Brad Larson <blarson@....com>
To:     <broonie@...nel.org>
CC:     <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>, <devicetree@...r.kernel.org>,
        <fancer.lancer@...il.com>, <gerg@...ux-m68k.org>,
        <gsomlo@...il.com>, <krzk@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <lee.jones@...aro.org>,
        <lee@...nel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
        <linux-spi@...r.kernel.org>, <p.yadav@...com>,
        <p.zabel@...gutronix.de>, <piotrs@...ence.com>,
        <rdunlap@...radead.org>, <robh+dt@...nel.org>,
        <samuel@...lland.org>, <skhan@...uxfoundation.org>,
        <suravee.suthikulpanit@....com>, <thomas.lendacky@....com>,
        <tonyhuang.sunplus@...il.com>, <ulf.hansson@...aro.org>,
        <vaishnav.a@...com>, <will@...nel.org>,
        <yamada.masahiro@...ionext.com>
Subject: [PATCH v14 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>
---

v14 changes:
- Patch series is against rc1, this patch failed to apply to
  https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
  Rebase this patch to rc7.

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

---
 .../devicetree/bindings/spi/cdns,qspi-nor.yaml | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
index b310069762dd..4f15f9a0cc34 100644
--- a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
@@ -46,12 +46,28 @@ allOf:
           maxItems: 2
           items:
             enum: [ qspi, qspi-ocp ]
+  - 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
@@ -76,8 +92,6 @@ 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

base-commit: 67d5d9f013d6c3829383c08162939cabff14fccc
-- 
2.17.1