diff options
author | Rob Herring <robh@kernel.org> | 2021-05-26 21:48:38 +0300 |
---|---|---|
committer | Rob Herring <robh@kernel.org> | 2021-06-02 02:20:06 +0300 |
commit | 86335b51e47d9b5065abf0e5fc438234e53ffe86 (patch) | |
tree | 287454efe8338588cd9e85c855f418eb24d3a649 /Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml | |
parent | a404a6367b0e74dee3125fa05811274565a34343 (diff) | |
download | linux-86335b51e47d9b5065abf0e5fc438234e53ffe86.tar.xz |
dt-bindings: i2c: i2c-mux-pca954x: Convert to DT schema
Convert the i2c-mux-pca954x binding to DT schema format.
Add the missing compatible for 'nxp,pca9645' which is already in use.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210526184839.2937899-6-robh@kernel.org
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml new file mode 100644 index 000000000000..9f1726d0356b --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml @@ -0,0 +1,110 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP PCA954x I2C bus switch + +maintainers: + - Laurent Pinchart <laurent.pinchart@ideasonboard.com> + +description: + The binding supports NXP PCA954x and PCA984x I2C mux/switch devices. + +allOf: + - $ref: /schemas/i2c/i2c-mux.yaml# + +properties: + compatible: + oneOf: + - enum: + - nxp,pca9540 + - nxp,pca9542 + - nxp,pca9543 + - nxp,pca9544 + - nxp,pca9545 + - nxp,pca9546 + - nxp,pca9547 + - nxp,pca9548 + - nxp,pca9846 + - nxp,pca9847 + - nxp,pca9848 + - nxp,pca9849 + - items: + - const: nxp,pca9646 + - const: nxp,pca9546 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + "#interrupt-cells": + const: 2 + + interrupt-controller: true + + reset-gpios: + maxItems: 1 + + i2c-mux-idle-disconnect: + type: boolean + description: Forces mux to disconnect all children in idle state. This is + necessary for example, if there are several multiplexers on the bus and + the devices behind them use same I2C addresses. + + idle-state: + description: if present, overrides i2c-mux-idle-disconnect + $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + i2c-mux@74 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x74>; + + interrupt-parent = <&ipic>; + interrupts = <17 IRQ_TYPE_LEVEL_LOW>; + interrupt-controller; + #interrupt-cells = <2>; + + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + + eeprom@54 { + compatible = "atmel,24c08"; + reg = <0x54>; + }; + }; + + i2c@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + + rtc@51 { + compatible = "nxp,pcf8563"; + reg = <0x51>; + }; + }; + }; + }; +... |