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Extend the list of supported compatible strings with fsl,lx2160ardb-fpga. Since the register map exposed by the LX2160ARDB's FPGA also contains two GPIO controllers, accept the necessary GPIO pattern property. At the same time, add the #address-cells and #size-cells properties as valid ones so that the child nodes of the fsl,lx2160ardb-fpga node are addressable. This is necessary because when defining child devices such as the GPIO controller described in the added example, the child device needs a the reg property to properly identify its register location in the parent I2C device address space. Impose this restriction for the new compatible through an if-statement. The feature set exposed by these QIXIS FPGA devices is highly dependent on the board type, meaning that even though the FPGA found on the LX2160AQDS board (fsl,lx2160aqds-fpga) works in the same way in terms of access over I2C as the one found on the LX2160ARDB (fsl,lx2160ardb-fpga added here), the register map inside the device space is different since there are different on-board devices to be controlled. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
129 lines
2.6 KiB
YAML
129 lines
2.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/board/fsl,fpga-qixis-i2c.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale on-board FPGA connected on I2C bus
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maintainers:
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- Frank Li <Frank.Li@nxp.com>
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- fsl,bsc9132qds-fpga
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- const: fsl,fpga-qixis-i2c
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- items:
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- enum:
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- fsl,ls1028aqds-fpga
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- fsl,lx2160aqds-fpga
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- const: fsl,fpga-qixis-i2c
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- const: simple-mfd
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- const: fsl,lx2160ardb-fpga
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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interrupts:
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maxItems: 1
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reg:
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maxItems: 1
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mux-controller:
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$ref: /schemas/mux/reg-mux.yaml
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patternProperties:
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"^gpio@[0-9a-f]+$":
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type: object
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additionalProperties: true
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properties:
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compatible:
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contains:
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enum:
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- fsl,lx2160ardb-fpga-gpio-sfp
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required:
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- compatible
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- reg
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allOf:
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- if:
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properties:
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compatible:
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contains:
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enum:
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- fsl,lx2160ardb-fpga
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then:
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required:
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- "#address-cells"
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- "#size-cells"
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else:
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properties:
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"#address-cells": false
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"#size-cells": false
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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board-control@66 {
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compatible = "fsl,bsc9132qds-fpga", "fsl,fpga-qixis-i2c";
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reg = <0x66>;
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};
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};
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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board-control@66 {
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compatible = "fsl,ls1028aqds-fpga", "fsl,fpga-qixis-i2c",
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"simple-mfd";
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reg = <0x66>;
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mux-controller {
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compatible = "reg-mux";
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#mux-control-cells = <1>;
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mux-reg-masks = <0x54 0xf0>; /* 0: reg 0x54, bits 7:4 */
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};
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};
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};
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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board-control@66 {
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compatible = "fsl,lx2160ardb-fpga";
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reg = <0x66>;
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#address-cells = <1>;
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#size-cells = <0>;
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gpio@19 {
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compatible = "fsl,lx2160ardb-fpga-gpio-sfp";
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reg = <0x19>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names =
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"SFP2_TX_EN", "",
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"", "",
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"SFP2_RX_LOS", "SFP2_TX_FAULT",
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"", "SFP2_MOD_ABS";
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};
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};
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};
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