linux/Documentation/devicetree/bindings/mfd/syscon.yaml
Johan Jonker 15ad304878 dt-binding: mfd: syscon: add Rockchip QoS register compatibles
With the conversion of syscon.yaml minItems for compatibles
was set to 2. Current Rockchip dtsi files only use "syscon" for
QoS registers. Add Rockchip QoS compatibles to reduce notifications
produced with:

make ARCH=arm dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/mfd/syscon.yaml

make ARCH=arm64 dtbs_check
DT_SCHEMA_FILES=Documentation/devicetree/bindings/mfd/syscon.yaml

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:23 +00:00

99 lines
2.5 KiB
YAML

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/syscon.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: System Controller Registers R/W Device Tree Bindings
description: |
System controller node represents a register region containing a set
of miscellaneous registers. The registers are not cohesive enough to
represent as any specific type of device. The typical use-case is
for some other node's driver, or platform-specific code, to acquire
a reference to the syscon node (e.g. by phandle, node path, or
search using a specific compatible value), interrogate the node (or
associated OS driver) to determine the location of the registers,
and access the registers directly.
maintainers:
- Lee Jones <lee.jones@linaro.org>
select:
properties:
compatible:
contains:
enum:
- syscon
required:
- compatible
properties:
compatible:
anyOf:
- items:
- enum:
- allwinner,sun8i-a83t-system-controller
- allwinner,sun8i-h3-system-controller
- allwinner,sun8i-v3s-system-controller
- allwinner,sun50i-a64-system-controller
- hisilicon,dsa-subctrl
- hisilicon,hi6220-sramctrl
- hisilicon,pcie-sas-subctrl
- hisilicon,peri-subctrl
- microchip,sparx5-cpu-syscon
- mstar,msc313-pmsleep
- rockchip,px30-qos
- rockchip,rk3066-qos
- rockchip,rk3288-qos
- rockchip,rk3399-qos
- samsung,exynos3-sysreg
- samsung,exynos4-sysreg
- samsung,exynos5-sysreg
- samsung,exynos5433-sysreg
- const: syscon
- contains:
const: syscon
minItems: 2
maxItems: 4 # Should be enough
reg:
maxItems: 1
reg-io-width:
description: |
The size (in bytes) of the IO accesses that should be performed
on the device.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 4, 8]
hwlocks:
maxItems: 1
description:
Reference to a phandle of a hardware spinlock provider node.
required:
- compatible
- reg
additionalProperties: true
examples:
- |
syscon: syscon@1c00000 {
compatible = "allwinner,sun8i-h3-system-controller", "syscon";
reg = <0x01c00000 0x1000>;
};
- |
gpr: iomuxc-gpr@20e0000 {
compatible = "fsl,imx6q-iomuxc-gpr", "syscon";
reg = <0x020e0000 0x38>;
hwlocks = <&hwlock1 1>;
};
...