Update the pca954x bindings to add support for the Maxim MAX735x/MAX736x chips. The functionality will be provided by the existing pca954x driver. For chips that are powered off by default add a regulator called vdd-supply. Signed-off-by: Patrick Rudolph <patrick.rudolph@xxxxxxxxxxxxx> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- .../bindings/i2c/i2c-mux-pca954x.yaml | 23 +++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml index e5c1070903ef..2d7bb998b0e9 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.yaml @@ -4,18 +4,29 @@ $id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: NXP PCA954x I2C bus switch +title: NXP PCA954x I2C and compatible bus switches maintainers: - Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> description: - The binding supports NXP PCA954x and PCA984x I2C mux/switch devices. + The NXP PCA954x and compatible devices are I2C bus + multiplexer/switches that share the same functionality + and register layout. + The devices usually have 4 or 8 child buses, which are + attached to the parent bus by using the SMBus "Send Byte" + command. properties: compatible: oneOf: - enum: + - maxim,max7356 + - maxim,max7357 + - maxim,max7358 + - maxim,max7367 + - maxim,max7368 + - maxim,max7369 - nxp,pca9540 - nxp,pca9542 - nxp,pca9543 @@ -56,6 +67,10 @@ properties: description: if present, overrides i2c-mux-idle-disconnect $ref: /schemas/mux/mux-controller.yaml#/properties/idle-state + vdd-supply: + description: A voltage regulator supplying power to the chip. On PCA9846 + the regulator supplies power to VDD2 (core logic) and optionally to VDD1. + required: - compatible - reg @@ -68,6 +83,8 @@ allOf: compatible: contains: enum: + - maxim,max7367 + - maxim,max7369 - nxp,pca9542 - nxp,pca9543 - nxp,pca9544 @@ -94,6 +111,8 @@ examples: #size-cells = <0>; reg = <0x74>; + vdd-supply = <&p3v3>; + interrupt-parent = <&ipic>; interrupts = <17 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; -- 2.41.0
