linux-kernel - [PATCH 1/2] dt-bindings: memory-controller: Define fallback compatible

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20250523184354.1249577-2-florian.fainelli@broadcom.com>
Date: Fri, 23 May 2025 11:43:53 -0700
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: linux-kernel@...r.kernel.org
Cc: justin.chen@...adcom.com,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM7XXX ARM ARCHITECTURE)
Subject: [PATCH 1/2] dt-bindings: memory-controller: Define fallback compatible

All of the DDR controllers beyond revision b.2.1 have had a consistent
layout, therefore define a "brcm,brcmstb-memc-ddr-rev-b.2.x" fallback
compatible string to match them all rather than having to continuously
add to the list.

Link: https://lore.kernel.org/all/20241217194439.929040-2-florian.fainelli@broadcom.com/
Signed-off-by: Florian Fainelli <florian.fainelli@...adcom.com>
---
 .../brcm,brcmstb-memc-ddr.yaml                | 51 +++++++++++--------
 1 file changed, 31 insertions(+), 20 deletions(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml b/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml
index 4b072c879b02..f08eb69fde47 100644
--- a/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml
@@ -11,25 +11,34 @@ maintainers:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - brcm,brcmstb-memc-ddr-rev-b.1.x
-          - brcm,brcmstb-memc-ddr-rev-b.2.0
-          - brcm,brcmstb-memc-ddr-rev-b.2.1
-          - brcm,brcmstb-memc-ddr-rev-b.2.2
-          - brcm,brcmstb-memc-ddr-rev-b.2.3
-          - brcm,brcmstb-memc-ddr-rev-b.2.5
-          - brcm,brcmstb-memc-ddr-rev-b.2.6
-          - brcm,brcmstb-memc-ddr-rev-b.2.7
-          - brcm,brcmstb-memc-ddr-rev-b.2.8
-          - brcm,brcmstb-memc-ddr-rev-b.3.0
-          - brcm,brcmstb-memc-ddr-rev-b.3.1
-          - brcm,brcmstb-memc-ddr-rev-c.1.0
-          - brcm,brcmstb-memc-ddr-rev-c.1.1
-          - brcm,brcmstb-memc-ddr-rev-c.1.2
-          - brcm,brcmstb-memc-ddr-rev-c.1.3
-          - brcm,brcmstb-memc-ddr-rev-c.1.4
-      - const: brcm,brcmstb-memc-ddr
+    oneOf:
+      - description: Revision 2.x controllers
+        items:
+          - enum:
+              - brcm,brcmstb-memc-ddr-rev-b.2.1
+              - brcm,brcmstb-memc-ddr-rev-b.2.2
+              - brcm,brcmstb-memc-ddr-rev-b.2.3
+              - brcm,brcmstb-memc-ddr-rev-b.2.5
+              - brcm,brcmstb-memc-ddr-rev-b.2.6
+              - brcm,brcmstb-memc-ddr-rev-b.2.7
+              - brcm,brcmstb-memc-ddr-rev-b.2.8
+              - brcm,brcmstb-memc-ddr-rev-b.3.0
+              - brcm,brcmstb-memc-ddr-rev-b.3.1
+              - brcm,brcmstb-memc-ddr-rev-c.1.0
+              - brcm,brcmstb-memc-ddr-rev-c.1.1
+              - brcm,brcmstb-memc-ddr-rev-c.1.2
+              - brcm,brcmstb-memc-ddr-rev-c.1.3
+              - brcm,brcmstb-memc-ddr-rev-c.1.4
+          - const: brcm,brcmstb-memc-ddr-rev-b.2.x
+          - const: brcm,brcmstb-memc-ddr
+      - description: Revision 2.0 controllers
+        items:
+          - const: brcm,brcmstb-memc-ddr-rev-b.2.0
+          - const: brcm,brcmstb-memc-ddr
+      - description: Revision 1.x controllers
+        items:
+          - const: brcm,brcmstb-memc-ddr-rev-b.1.x
+          - const: brcm,brcmstb-memc-ddr
 
   reg:
     maxItems: 1
@@ -46,7 +55,9 @@ additionalProperties: false
 examples:
   - |
     memory-controller@...2000 {
-        compatible = "brcm,brcmstb-memc-ddr-rev-c.1.1", "brcm,brcmstb-memc-ddr";
+        compatible = "brcm,brcmstb-memc-ddr-rev-c.1.1",
+                     "brcm,brcmstb-memc-ddr-rev-b.2.x",
+                     "brcm,brcmstb-memc-ddr";
         reg = <0x9902000 0x600>;
         clock-frequency = <2133000000>;
     };
-- 
2.43.0