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From:   Conor Dooley <mail@conchuod.ie>
To:     David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
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Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Conor Dooley <conor.dooley@microchip.com>,
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        dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
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        alsa-devel@alsa-project.org, linux-spi@vger.kernel.org,
        linux-riscv@lists.infradead.org
Subject: [PATCH 06/14] spi: dt-bindings: dw-apb-ssi: update spi-{r,t}x-bus-width for dwc-ssi
Date:   Sat, 18 Jun 2022 13:30:28 +0100
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From: Conor Dooley <conor.dooley@microchip.com>

snps,dwc-ssi-1.01a has a single user - the Canaan k210, which uses a
width of 4 for spi-{r,t}x-bus-width. Update the binding to reflect
this.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
 .../bindings/spi/snps,dw-apb-ssi.yaml         | 48 ++++++++++++++-----
 1 file changed, 35 insertions(+), 13 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
index e25d44c218f2..f2b9e3f062cd 100644
--- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
+++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
@@ -135,19 +135,41 @@ properties:
       of the designware controller, and the upper limit is also subject to
       controller configuration.
 
-patternProperties:
-  "^.*@[0-9a-f]+$":
-    type: object
-    properties:
-      reg:
-        minimum: 0
-        maximum: 3
-
-      spi-rx-bus-width:
-        const: 1
-
-      spi-tx-bus-width:
-        const: 1
+if:
+  properties:
+    compatible:
+      contains:
+        const: snps,dwc-ssi-1.01a
+
+then:
+  patternProperties:
+    "^.*@[0-9a-f]+$":
+      type: object
+      properties:
+        reg:
+          minimum: 0
+          maximum: 3
+
+        spi-rx-bus-width:
+          const: 4
+
+        spi-tx-bus-width:
+          const: 4
+
+else:
+  patternProperties:
+    "^.*@[0-9a-f]+$":
+      type: object
+      properties:
+        reg:
+          minimum: 0
+          maximum: 3
+
+        spi-rx-bus-width:
+          const: 1
+
+        spi-tx-bus-width:
+          const: 1
 
 unevaluatedProperties: false
 
-- 
2.36.1