linux-kernel - [PATCH 1/4] dt-bindings: hwinfo: Add second register range for GP

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Message-ID: <20250805234950.3781367-2-jm@ti.com>
Date: Tue, 5 Aug 2025 18:49:47 -0500
From: Judith Mendez <jm@...com>
To: Judith Mendez <jm@...com>, Nishanth Menon <nm@...com>,
        Tero Kristo
	<kristo@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Adrian Hunter
	<adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
CC: Vignesh Raghavendra <vigneshr@...com>,
        Santosh Shilimkar
	<ssantosh@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>
Subject: [PATCH 1/4] dt-bindings: hwinfo: Add second register range for GP_SW

This adds a second register range in ti,k3-socinfo. This register
range can also be used to detect silicon revisions.

AM62px SR1.0, SR1.1, and SR1.2 can only be distinguished with GP_SW
registers, so increase maximum items to 2 for reg property and update
the example.

Signed-off-by: Judith Mendez <jm@...com>
---
 .../devicetree/bindings/hwinfo/ti,k3-socinfo.yaml        | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml b/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
index dada28b47ea0..3b656fc0cb5a 100644
--- a/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
+++ b/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
@@ -24,7 +24,8 @@ properties:
       - const: ti,am654-chipid
 
   reg:
-    maxItems: 1
+    maxItems: 2
+    minItems: 1
 
 required:
   - compatible
@@ -34,7 +35,9 @@ additionalProperties: false
 
 examples:
   - |
-    chipid@...00014 {
+    chipid@14 {
         compatible = "ti,am654-chipid";
-        reg = <0x43000014 0x4>;
+        reg = <0x43000014 0x4>,
+              <0x43000230 0x10>;
+        bootph-all;
     };
-- 
2.49.0