linux-kernel - [PATCH v4 1/3] dt-bindings: power: reset: google,gs101-reboot: add Google GS101 specific reset

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Message-Id: <20250328-syscon-reboot-reset-mode-v4-1-77ba57703ace@linaro.org>
Date: Fri, 28 Mar 2025 15:15:19 +0000
From: André Draszik <andre.draszik@...aro.org>
To: Sebastian Reichel <sre@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com, 
 linux-pm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH v4 1/3] dt-bindings: power: reset: google,gs101-reboot: add
 Google GS101 specific reset

GS101 supports a couple different reset types via certain registers in
the SYSCON register map.

Add a binding for this.

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
 .../bindings/power/reset/google,gs101-reboot.yaml  | 32 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 33 insertions(+)

diff --git a/Documentation/devicetree/bindings/power/reset/google,gs101-reboot.yaml b/Documentation/devicetree/bindings/power/reset/google,gs101-reboot.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..cbd0a1d9b45af0cb994d616c56b96440c43ab971
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/google,gs101-reboot.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/reset/google,gs101-reboot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google GS101 syscon-mapped reset
+
+maintainers:
+  - André Draszik <andre.draszik@...aro.org>
+
+description:
+  GS101 supports a couple different reset types via certain registers in the
+  SYSCON register map. This map is retrieved from the parental dt-node. So the
+  gs101-reboot node should be represented as a sub-node of such a node.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: google,gs101-reboot
+
+  priority:
+    default: 192
+
+required:
+  - compatible
+
+additionalProperties: false
+
+allOf:
+  - $ref: restart-handler.yaml#
diff --git a/MAINTAINERS b/MAINTAINERS
index 322ee00547f6e494a96d2495092f72148da22bd0..e27f5e672bc5a04777afd098355898654654659d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10080,6 +10080,7 @@ L:	linux-samsung-soc@...r.kernel.org
 S:	Maintained
 C:	irc://irc.oftc.net/pixel6-kernel-dev
 F:	Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
+F:	Documentation/devicetree/bindings/power/reset/google,gs101-reboot.yaml
 F:	arch/arm64/boot/dts/exynos/google/
 F:	drivers/clk/samsung/clk-gs101.c
 F:	drivers/phy/samsung/phy-gs101-ufs.c

-- 
2.49.0.472.ge94155a9ec-goog