From 5c24a28b4eb842ad1256496be6ae01bab15f1dcb Mon Sep 17 00:00:00 2001 From: Evan Benn Date: Tue, 5 May 2020 13:13:30 +1000 Subject: dt-bindings: watchdog: Add ARM smc wdt for mt8173 watchdog This watchdog can be used on ARM systems with a Secure Monitor firmware to forward watchdog operations to firmware via a Secure Monitor Call. Signed-off-by: Evan Benn Reviewed-by: Rob Herring Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20200505131242.v6.1.Id96574f1f52479d7a2f3b866b8a0552ab8c03d7f@changeid Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- .../devicetree/bindings/watchdog/arm-smc-wdt.yaml | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml (limited to 'Documentation/devicetree/bindings') diff --git a/Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml b/Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml new file mode 100644 index 000000000000..bec651541e0c --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/arm-smc-wdt.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/arm-smc-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM Secure Monitor Call based watchdog + +allOf: + - $ref: "watchdog.yaml#" + +maintainers: + - Julius Werner + +properties: + compatible: + enum: + - arm,smc-wdt + arm,smc-id: + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + description: | + The ATF smc function id used by the firmware. + Defaults to 0x82003D06 if unset. + +required: + - compatible + +examples: + - | + watchdog { + compatible = "arm,smc-wdt"; + arm,smc-id = <0x82003D06>; + timeout-sec = <15>; + }; + +... -- cgit v1.2.3-59-g8ed1b From ff1ee6fb276c90b1b610978736693abe24f0a897 Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Fri, 15 May 2020 16:08:56 +0100 Subject: dt-bindings: watchdog: renesas,wdt: Document r8a7742 support RZ/G1H (R8A7742) watchdog implementation is compatible with R-Car Gen2, therefore add relevant documentation. Signed-off-by: Lad Prabhakar Reviewed-by: Marian-Cristian Rotariu Reviewed-by: Wolfram Sang Reviewed-by: Geert Uytterhoeven Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/1589555337-5498-17-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- Documentation/devicetree/bindings/watchdog/renesas,wdt.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation/devicetree/bindings') diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt index 79b3c62f183d..e42fd3019cb7 100644 --- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.txt @@ -5,6 +5,7 @@ Required properties: fallback compatible string when compatible with the generic version. Examples with soctypes are: + - "renesas,r8a7742-wdt" (RZ/G1H) - "renesas,r8a7743-wdt" (RZ/G1M) - "renesas,r8a7744-wdt" (RZ/G1N) - "renesas,r8a7745-wdt" (RZ/G1E) -- cgit v1.2.3-59-g8ed1b