linux-stable/Documentation/devicetree/bindings/mux/reg-mux.yaml
Krzysztof Kozlowski 84e85359f4 dt-bindings: drop redundant part of title (end, part three)
The Devicetree bindings document does not have to say in the title that
it is a "binding", but instead just describe the hardware.

Drop trailing "bindings" in various forms (also with trailing full
stop):

  find Documentation/devicetree/bindings/ -type f -name '*.yaml' \
    -not -name 'trivial-devices.yaml' \
    -exec sed -i -e 's/^title: \(.*\) [bB]indings\?\.\?$/title: \1/' {} \;

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> # ROHM
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # MMC
Acked-by: Stephen Boyd <sboyd@kernel.org> # clk
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # input
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # media
Acked-by: Sebastian Reichel <sre@kernel.org> # power
Acked-by: Viresh Kumar <viresh.kumar@linaro.org> # cpufreq
Link: https://lore.kernel.org/r/20221216163815.522628-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
2022-12-16 11:41:49 -06:00

147 lines
3.3 KiB
YAML

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/mux/reg-mux.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Generic register bitfield-based multiplexer controller
maintainers:
- Peter Rosin <peda@axentia.se>
description: |+
Define register bitfields to be used to control multiplexers. The parent
device tree node must be a device node to provide register r/w access.
properties:
compatible:
enum:
- reg-mux # parent device of mux controller is not syscon device
- mmio-mux # parent device of mux controller is syscon device
reg: true
'#mux-control-cells':
const: 1
mux-reg-masks:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
items:
items:
- description: register offset
- description: pre-shifted bitfield mask
description: Each entry pair describes a single mux control.
idle-states: true
required:
- compatible
- mux-reg-masks
- '#mux-control-cells'
additionalProperties: false
examples:
- |
/* The parent device of mux controller is not a syscon device. */
#include <dt-bindings/mux/mux.h>
mux-controller {
compatible = "reg-mux";
#mux-control-cells = <1>;
mux-reg-masks =
<0x54 0xf8>, /* 0: reg 0x54, bits 7:3 */
<0x54 0x07>; /* 1: reg 0x54, bits 2:0 */
};
mdio-mux-1 {
compatible = "mdio-mux-multiplexer";
mux-controls = <&mux1 0>;
mdio-parent-bus = <&emdio1>;
#address-cells = <1>;
#size-cells = <0>;
mdio@0 {
reg = <0x0>;
#address-cells = <1>;
#size-cells = <0>;
};
mdio@8 {
reg = <0x8>;
#address-cells = <1>;
#size-cells = <0>;
};
};
mdio-mux-2 {
compatible = "mdio-mux-multiplexer";
mux-controls = <&mux1 1>;
mdio-parent-bus = <&emdio2>;
#address-cells = <1>;
#size-cells = <0>;
mdio@0 {
reg = <0x0>;
#address-cells = <1>;
#size-cells = <0>;
};
mdio@1 {
reg = <0x1>;
#address-cells = <1>;
#size-cells = <0>;
};
};
- |
/* The parent device of mux controller is syscon device. */
#include <dt-bindings/mux/mux.h>
syscon@1000 {
reg = <0x1000 0x100>;
mux2: mux-controller {
compatible = "mmio-mux";
#mux-control-cells = <1>;
mux-reg-masks =
<0x3 0x30>, /* 0: reg 0x3, bits 5:4 */
<0x3 0x40>; /* 1: reg 0x3, bit 6 */
idle-states = <MUX_IDLE_AS_IS>, <0>;
};
};
video-mux {
compatible = "video-mux";
mux-controls = <&mux2 0>;
#address-cells = <1>;
#size-cells = <0>;
ports {
#address-cells = <1>;
#size-cells = <0>;
/* inputs 0..3 */
port@0 {
reg = <0>;
};
port@1 {
reg = <1>;
};
port@2 {
reg = <2>;
};
port@3 {
reg = <3>;
};
/* output */
port@4 {
reg = <4>;
};
};
};
...