linux-kernel - [PATCH v3 08/19] dt-binding: memory: add DDR4 channel compatible

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Message-ID: <20250722-ddrperfm-upstream-v3-8-7b7a4f3dc8a0@foss.st.com>
Date: Tue, 22 Jul 2025 16:03:25 +0200
From: Clément Le Goffic <clement.legoffic@...s.st.com>
To: Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Rob
 Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor
 Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Philipp Zabel
	<p.zabel@...gutronix.de>,
        Jonathan Corbet <corbet@....net>,
        Gatien Chevallier
	<gatien.chevallier@...s.st.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Gabriel Fernandez
	<gabriel.fernandez@...s.st.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Le
 Goffic <legoffic.clement@...il.com>,
        Julius Werner <jwerner@...omium.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-perf-users@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-clk@...r.kernel.org>,
        Clément Le Goffic <clement.legoffic@...s.st.com>
Subject: [PATCH v3 08/19] dt-binding: memory: add DDR4 channel compatible

Add in the memory channel binding the DDR4 compatible to support DDR4
memory channel.

Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>
---
 .../bindings/memory-controllers/ddr/jedec,memory-channel.yaml  | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,memory-channel.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,memory-channel.yaml
index 3bf3a63466eb..03252d97ac38 100644
--- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,memory-channel.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,memory-channel.yaml
@@ -18,6 +18,7 @@ maintainers:
 properties:
   compatible:
     enum:
+      - jedec,ddr4-channel
       - jedec,lpddr2-channel
       - jedec,lpddr3-channel
       - jedec,lpddr4-channel
@@ -60,6 +61,15 @@ patternProperties:
       - reg
 
 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: jedec,ddr4-channel
+    then:
+      patternProperties:
+        "^rank@[0-9]+$":
+          $ref: /schemas/memory-controllers/ddr/jedec,ddr4.yaml#
   - if:
       properties:
         compatible:

-- 
2.43.0