Merge tag 'linux-watchdog-5.15-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - add Mediatek MT7986 & MT8195 wdt support

 - add Maxim MAX63xx

 - drop bd70528 support

 - rewrite ixp4xx to watchdog framework

 - constify static struct watchdog_ops for sl28cpld_wdt, mpc8xxx_wdt and
   tqmx86

 - introduce watchdog_dev_suspend/resume

 - several fixes and improvements

* tag 'linux-watchdog-5.15-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  dt-bindings: watchdog: Add compatible for Mediatek MT7986
  watchdog: ixp4xx: Rewrite driver to use core
  watchdog: Start watchdog in watchdog_set_last_hw_keepalive only if appropriate
  watchdog: max63xx_wdt: Add device tree probing
  dt-bindings: watchdog: Add Maxim MAX63xx bindings
  watchdog: mediatek: mt8195: add wdt support
  dt-bindings: reset: mt8195: add toprgu reset-controller header file
  watchdog: tqmx86: Constify static struct watchdog_ops
  watchdog: mpc8xxx_wdt: Constify static struct watchdog_ops
  watchdog: sl28cpld_wdt: Constify static struct watchdog_ops
  watchdog: iTCO_wdt: Fix detection of SMI-off case
  watchdog: bcm2835_wdt: consider system-power-controller property
  watchdog: imx2_wdg: notify wdog core to stop ping worker on suspend
  watchdog: introduce watchdog_dev_suspend/resume
  watchdog: Fix NULL pointer dereference when releasing cdev
  watchdog: only run driver set_pretimeout op if device supports it
  watchdog: bd70528 drop bd70528 support

2 files changed, 45 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml b/Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml
new file mode 100644
index 000000000000..f2105eedac2c
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/maxim,max63xx.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/maxim,max63xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim 63xx Watchdog Timers
+
+allOf:
+  - $ref: "watchdog.yaml#"
+
+maintainers:
+  - Marc Zyngier <maz@kernel.org>
+  - Linus Walleij <linus.walleij@linaro.org>
+
+properties:
+  compatible:
+    oneOf:
+      - const: maxim,max6369
+      - const: maxim,max6370
+      - const: maxim,max6371
+      - const: maxim,max6372
+      - const: maxim,max6373
+      - const: maxim,max6374
+
+  reg:
+    description: This is a 1-byte memory-mapped address
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    wdt: watchdog@50000000 {
+        compatible = "maxim,max6369";
+        reg = <0x50000000 0x1>;
+        timeout-sec = <10>;
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
index 416d716403f6..a4e31ce96e0e 100644
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
@@ -13,6 +13,7 @@ Required properties:
 	"mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622
 	"mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623
 	"mediatek,mt7629-wdt", "mediatek,mt6589-wdt": for MT7629
+	"mediatek,mt7986-wdt", "mediatek,mt6589-wdt": for MT7986
 	"mediatek,mt8183-wdt": for MT8183
 	"mediatek,mt8516-wdt", "mediatek,mt6589-wdt": for MT8516
 	"mediatek,mt8192-wdt": for MT8192