linux-kernel - [PATCH 25/26] dt-bindings: reserved-memory: Add Google Kinfo Pixel reserved memory

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Message-ID: <20251119154427.1033475-26-eugen.hristev@linaro.org>
Date: Wed, 19 Nov 2025 17:44:26 +0200
From: Eugen Hristev <eugen.hristev@...aro.org>
To: linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	tglx@...utronix.de,
	andersson@...nel.org,
	pmladek@...e.com,
	rdunlap@...radead.org,
	corbet@....net,
	david@...hat.com,
	mhocko@...e.com
Cc: tudor.ambarus@...aro.org,
	mukesh.ojha@....qualcomm.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-hardening@...r.kernel.org,
	jonechou@...gle.com,
	rostedt@...dmis.org,
	linux-doc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-remoteproc@...r.kernel.org,
	linux-arch@...r.kernel.org,
	tony.luck@...el.com,
	kees@...nel.org,
	Eugen Hristev <eugen.hristev@...aro.org>
Subject: [PATCH 25/26] dt-bindings: reserved-memory: Add Google Kinfo Pixel reserved memory

Add documentation for Google Kinfo Pixel reserved memory area.

Signed-off-by: Eugen Hristev <eugen.hristev@...aro.org>
---
 .../reserved-memory/google,kinfo.yaml         | 49 +++++++++++++++++++
 MAINTAINERS                                   |  5 ++
 2 files changed, 54 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/google,kinfo.yaml

diff --git a/Documentation/devicetree/bindings/reserved-memory/google,kinfo.yaml b/Documentation/devicetree/bindings/reserved-memory/google,kinfo.yaml
new file mode 100644
index 000000000000..12d0b2815c02
--- /dev/null
+++ b/Documentation/devicetree/bindings/reserved-memory/google,kinfo.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reserved-memory/google,kinfo.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google Pixel Kinfo reserved memory
+
+maintainers:
+  - Eugen Hristev <eugen.hristev@...aro.org>
+
+description:
+  This binding describes the Google Pixel Kinfo reserved memory, a region
+  of reserved-memory used to store data for firmware/bootloader on the Pixel
+  platform. The data stored is debugging information on the running kernel.
+
+properties:
+  compatible:
+    items:
+      - const: google,kinfo
+
+  memory-region:
+    maxItems: 1
+    description: Reference to the reserved-memory for the data
+
+required:
+  - compatible
+  - memory-region
+
+additionalProperties: true
+
+examples:
+  - |
+    reserved-memory {
+      #address-cells = <1>;
+      #size-cells = <1>;
+      ranges;
+
+      kinfo_region: smem@...0000 {
+          reg = <0xfa00000 0x1000>;
+          no-map;
+      };
+    };
+
+    debug-kinfo {
+        compatible = "google,debug-kinfo";
+
+        memory-region = <&kinfo_region>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 2cb2cc427c90..8034940d0b1e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16164,6 +16164,11 @@ F:	Documentation/dev-tools/meminspect.rst
 F:	include/linux/meminspect.h
 F:	kernel/meminspect/*
 
+MEMINSPECT KINFO DRIVER
+M:	Eugen Hristev <eugen.hristev@...aro.org>
+S:	Maintained
+F:	Documentation/devicetree/bindings/misc/google,kinfo.yaml
+
 MEMBLOCK AND MEMORY MANAGEMENT INITIALIZATION
 M:	Mike Rapoport <rppt@...nel.org>
 L:	linux-mm@...ck.org
-- 
2.43.0