Re: [PATCH v3 2/4] dt-bindings: watchdog: add new binding for meson secure watchdog
From: Rob Herring <robh@kernel.org>
Date: 2019-10-25 20:30:36
Also in:
linux-amlogic, linux-devicetree, linux-watchdog, lkml
On Fri, Oct 25, 2019 at 02:13:02PM +0800, Xingyu Chen wrote:
quoted hunk ↗ jump to hunk
The binding targets the Meson-A/C series compatible SoCs, in which the watchdog registers are in secure world. Signed-off-by: Xingyu Chen <redacted> --- .../bindings/watchdog/amlogic,meson-sec-wdt.yaml | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yamldiff --git a/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml new file mode 100644 index 00000000..0bbc807 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml@@ -0,0 +1,34 @@ +# SPDX-License-Identifier: (GPL-2.0+ OR MIT) +# Copyright (c) 2019 Amlogic, Inc +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-wdt.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Amlogic Meson Secure Watchdog Timer + +maintainers: + - Xingyu Chen <xingyu.chen@amlogic.com> + +description: |+ + Secure Watchdog Timer used in Meson-A/C series Compatible SoCs + +properties: + compatible: + enum: + - amlogic,meson-sec-wdt
If there are no other properties, then you don't need this. Just have the secure firmware driver instantiate the watchdog.
+
+ secure-monitor:
+ description: phandle to the secure-monitor node
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+required:
+ - compatible
+ - secure-monitor
+
+examples:
+ - |
+ watchdog {
+ compatible = "amlogic,meson-sec-wdt";
+ secure-monitor = <&sm>;
+ };
--
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