linux-kernel - [PATCH v6 1/3] spi: dt-bindings: snps,dw-apb-ssi: Merge duplicate compatible entry

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Message-Id: <20250425-sfg-spi-v6-1-2dbe7bb46013@gmail.com>
Date: Fri, 25 Apr 2025 10:28:12 +0800
From: Zixian Zeng <sycamoremoon376@...il.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Chen Wang <unicorn_wang@...look.com>, Inochi Amaoto <inochiama@...look.com>, 
 Alexandre Ghiti <alex@...ti.fr>, Mark Brown <broonie@...nel.org>, 
 Inochi Amaoto <inochiama@...il.com>, 
 Geert Uytterhoeven <geert+renesas@...der.be>, 
 Magnus Damm <magnus.damm@...il.com>
Cc: devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org, 
 sophgo@...ts.linux.dev, chao.wei@...hgo.com, xiaoguang.xing@...hgo.com, 
 dlan@...too.org, linux-renesas-soc@...r.kernel.org, 
 Zixian Zeng <sycamoremoon376@...il.com>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v6 1/3] spi: dt-bindings: snps,dw-apb-ssi: Merge duplicate
 compatible entry

Microsemi Ocelot/Jaguar2, Renesas RZ/N1 and T-HEAD TH1520
SoC-specific compatibles, which eventually fallback to the
generic DW ssi compatible, it's better to combine them in single entry

Suggested-by: Rob Herring <robh@...nel.org>
Signed-off-by: Zixian Zeng <sycamoremoon376@...il.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/spi/snps,dw-apb-ssi.yaml       | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
index bccd00a1ddd0ad92b437eed5b525a6ea1963db57..a43d2fb9942d85b1482a52782c0a97cd5c6edd99 100644
--- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
+++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
@@ -56,19 +56,17 @@ properties:
         enum:
           - snps,dw-apb-ssi
           - snps,dwc-ssi-1.01a
-      - description: Microsemi Ocelot/Jaguar2 SoC SPI Controller
-        items:
-          - enum:
-              - mscc,ocelot-spi
-              - mscc,jaguar2-spi
-          - const: snps,dw-apb-ssi
       - description: Microchip Sparx5 SoC SPI Controller
         const: microchip,sparx5-spi
       - description: Amazon Alpine SPI Controller
         const: amazon,alpine-dw-apb-ssi
-      - description: Renesas RZ/N1 SPI Controller
+      - description: Vendor controllers which use snps,dw-apb-ssi as fallback
         items:
-          - const: renesas,rzn1-spi
+          - enum:
+              - mscc,ocelot-spi
+              - mscc,jaguar2-spi
+              - renesas,rzn1-spi
+              - thead,th1520-spi
           - const: snps,dw-apb-ssi
       - description: Intel Keem Bay SPI Controller
         const: intel,keembay-ssi
@@ -88,10 +86,6 @@ properties:
               - renesas,r9a06g032-spi # RZ/N1D
               - renesas,r9a06g033-spi # RZ/N1S
           - const: renesas,rzn1-spi   # RZ/N1
-      - description: T-HEAD TH1520 SoC SPI Controller
-        items:
-          - const: thead,th1520-spi
-          - const: snps,dw-apb-ssi
 
   reg:
     minItems: 1

-- 
2.49.0