linux-kernel - [PATCH phy 13/14] dt-bindings: phy: lynx-28g: add compatible strings per SerDes and instantiation

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

Message-Id: <20250904154402.300032-14-vladimir.oltean@nxp.com>
Date: Thu,  4 Sep 2025 18:44:01 +0300
From: Vladimir Oltean <vladimir.oltean@....com>
To: linux-phy@...ts.infradead.org
Cc: Ioana Ciornei <ioana.ciornei@....com>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	linux-kernel@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org
Subject: [PATCH phy 13/14] dt-bindings: phy: lynx-28g: add compatible strings per SerDes and instantiation

Going by the generic "fsl,lynx-28g" compatible string and expecting all
SerDes instantiations on all SoCs to use it was a mistake.

They all share the same register map, sure, but the number of protocol
converters and lanes which are instantiated differs in a way that isn't
detectable by software. So distinguish them by compatible strings.
At the same time, keep "fsl,lynx-28g" as backup.

Cc: Rob Herring <robh@...nel.org>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: devicetree@...r.kernel.org
Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>
---
 .../devicetree/bindings/phy/fsl,lynx-28g.yaml     | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml b/Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml
index ff9f9ca0f19c..55d773c8d0e4 100644
--- a/Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml
+++ b/Documentation/devicetree/bindings/phy/fsl,lynx-28g.yaml
@@ -11,8 +11,17 @@ maintainers:
 
 properties:
   compatible:
-    enum:
-      - fsl,lynx-28g
+    oneOf:
+      - items:
+          - const: fsl,lynx-28g
+      - items:
+          - enum:
+              - fsl,lx2160a-serdes1
+              - fsl,lx2160a-serdes2
+              - fsl,lx2160a-serdes3
+              - fsl,lx2162a-serdes1
+              - fsl,lx2162a-serdes2
+          - const: fsl,lynx-28g
 
   reg:
     maxItems: 1
@@ -33,7 +42,7 @@ examples:
       #address-cells = <2>;
       #size-cells = <2>;
       serdes_1: phy@...0000 {
-        compatible = "fsl,lynx-28g";
+        compatible = "fsl,lx2160a-serdes1", "fsl,lynx-28g";
         reg = <0x0 0x1ea0000 0x0 0x1e30>;
         #phy-cells = <1>;
       };
-- 
2.34.1