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authorLinus Torvalds <torvalds@linux-foundation.org>2023-07-06 19:44:33 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-07-06 19:44:33 +0300
commitc91e587be8e2680786cbf0b87fa7ae92c345857f (patch)
treee8db5a0a1caac1261c2247e029bada26fe3b0520 /Documentation
parentc17414a273b81fe4e34e11d69fc30cc8b1431614 (diff)
parent009637de1f65cff452ad49554d1e8ef9fda99e43 (diff)
downloadlinux-c91e587be8e2680786cbf0b87fa7ae92c345857f.tar.xz
Merge tag 'linux-watchdog-6.5-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck: - add Xilinx Versal watchdog - support Hygon FCH/SCH (Server Controller Hub) - convert GPL notices to SPDX identifiers - other improvements * tag 'linux-watchdog-6.5-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: sp5100_tco: support Hygon FCH/SCH (Server Controller Hub) dt-bindings: watchdog: restrict node name suffixes MAINTAINERS: Add support for Xilinx versal watchdog watchdog: xilinx_wwdt: Add Versal window watchdog support dt-bindings: watchdog: xlnx,versal-wwdt: Add versal watchdog watchdog: ziirave_wdt: Switch i2c driver back to use .probe() watchdog: ibmasr: Replace GPL license notice with SPDX identifier watchdog: Convert GPL 2.0 notice to SPDX identifier watchdog: loongson1_wdt: Add DT support
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml50
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml b/Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml
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+++ b/Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml
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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/xlnx,versal-wwdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Versal window watchdog timer controller
+
+maintainers:
+ - Neeli Srinivas <srinivas.neeli@amd.com>
+
+description:
+ Versal watchdog intellectual property uses window watchdog mode.
+ Window watchdog timer(WWDT) contains closed(first) and open(second)
+ window with 32 bit width. Write to the watchdog timer within
+ predefined window periods of time. This means a period that is not
+ too soon and a period that is not too late. The WWDT has to be
+ restarted within the open window time. If software tries to restart
+ WWDT outside of the open window time period, it generates a reset.
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ enum:
+ - xlnx,versal-wwdt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ watchdog@fd4d0000 {
+ compatible = "xlnx,versal-wwdt";
+ reg = <0xfd4d0000 0x10000>;
+ clocks = <&clock25>;
+ timeout-sec = <30>;
+ };
+...