diff options
author | Rafał Miłecki <rafal@milecki.pl> | 2021-11-15 08:53:54 +0300 |
---|---|---|
committer | Lee Jones <lee.jones@linaro.org> | 2021-12-29 12:44:14 +0300 |
commit | ad4ddfac646a9e177cb322e7234d87ed4f282da4 (patch) | |
tree | d66a7c83abab537fc4b397245d67f8472ee6330e /Documentation/devicetree/bindings/mfd/brcm,twd.yaml | |
parent | 8ae4069acdee89dd54c3fab93a64cbe51b92fadc (diff) | |
download | linux-ad4ddfac646a9e177cb322e7234d87ed4f282da4.tar.xz |
dt-bindings: mfd: Add Broadcom's Timer-Watchdog block
It's a block implementing few time related functions depending on a
(SoC specific) variant. At this point there is ready binding for a
watchdog only. Work on remaining subblocks (e.g. "reg" based reboot) is
in progress.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211115055354.6089-2-zajec5@gmail.com
Diffstat (limited to 'Documentation/devicetree/bindings/mfd/brcm,twd.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/mfd/brcm,twd.yaml | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/brcm,twd.yaml b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml new file mode 100644 index 000000000000..634526f790b8 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/brcm,twd.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/brcm,twd.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom's Timer-Watchdog (aka TWD) + +maintainers: + - Rafał Miłecki <rafal@milecki.pl> + +description: | + Broadcom has a Timer-Watchdog block used in multiple SoCs (e.g., BCM4908, + BCM63xx, BCM7038). There are few variants available (they differ slightly in + registers layout). This block consists of: timers, watchdog and optionally a + software reset handler. + +properties: + compatible: + items: + - enum: + - brcm,bcm4908-twd + - brcm,bcm7038-twd + - const: simple-mfd + - const: syscon + + reg: + maxItems: 1 + + ranges: true + + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + +patternProperties: + '^watchdog@[a-f0-9]+$': + $ref: /schemas/watchdog/brcm,bcm7038-wdt.yaml + +additionalProperties: false + +required: + - reg + +examples: + - | + timer-mfd@ff800400 { + compatible = "brcm,bcm4908-twd", "simple-mfd", "syscon"; + reg = <0xff800400 0x4c>; + ranges = <0x00000000 0xff800400 0x4c>; + + #address-cells = <1>; + #size-cells = <1>; + + watchdog@28 { + compatible = "brcm,bcm7038-wdt"; + reg = <0x28 0x8>; + }; + }; |