[PATCH 01/12] dt-bindings: power: reset: Document ti,sci-reboot compatible

From: Andrew Davis
Date: Wed Jan 31 2024 - 17:20:58 EST


This calls into the system firmware using TI-SCI to reboot the system.
Used as a fallback when PSCI is unable or not available to reboot
the system.

Signed-off-by: Andrew Davis <afd@xxxxxx>
---
.../bindings/power/reset/ti,sci-reboot.yaml | 33 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/reset/ti,sci-reboot.yaml

diff --git a/Documentation/devicetree/bindings/power/reset/ti,sci-reboot.yaml b/Documentation/devicetree/bindings/power/reset/ti,sci-reboot.yaml
new file mode 100644
index 0000000000000..aa628be33d122
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/ti,sci-reboot.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/reset/ti,sci-reboot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI-SCI reboot controller
+
+maintainers:
+ - Andrew Davis <afd@xxxxxx>
+
+description: |
+ Some TI SoCs contain a system controller (like the Power Management Micro
+ Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling
+ the state of the various hardware modules present on the SoC. Communication
+ between the host processor running an OS and the system controller happens
+ through a protocol called TI System Control Interface (TI-SCI protocol).
+
+ This reboot controller node uses the TI SCI protocol to perform a device reboot.
+
+ Must be a child node of the associated TI-SCI system controller node.
+
+properties:
+ compatible:
+ const: ti,sci-reboot
+
+additionalProperties: false
+
+examples:
+ - |
+ k3_reboot: reboot-controller {
+ compatible = "ti,sci-reboot";
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 8999497011a26..45983bb174fe4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21751,6 +21751,7 @@ F: Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
F: Documentation/devicetree/bindings/clock/ti,sci-clk.yaml
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-inta.yaml
F: Documentation/devicetree/bindings/interrupt-controller/ti,sci-intr.yaml
+F: Documentation/devicetree/bindings/power/reset/ti,sci-reboot.yaml
F: Documentation/devicetree/bindings/reset/ti,sci-reset.yaml
F: Documentation/devicetree/bindings/soc/ti/sci-pm-domain.yaml
F: drivers/clk/keystone/sci-clk.c
--
2.39.2