49cd1eb37b
The lpspi on i.MX8ULP is derived from i.MX7ULP, it uses two compatible strings, so update the comaptible string for i.MX8ULP. Signed-off-by: Jacky Bai <ping.bai@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20211120113454.785997-4-peng.fan@oss.nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
72 lines
1.6 KiB
YAML
72 lines
1.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/spi/spi-fsl-lpspi.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Freescale Low Power SPI (LPSPI) for i.MX
|
|
|
|
maintainers:
|
|
- Anson Huang <Anson.Huang@nxp.com>
|
|
|
|
allOf:
|
|
- $ref: "/schemas/spi/spi-controller.yaml#"
|
|
|
|
properties:
|
|
compatible:
|
|
oneOf:
|
|
- enum:
|
|
- fsl,imx7ulp-spi
|
|
- fsl,imx8qxp-spi
|
|
- items:
|
|
- const: fsl,imx8ulp-spi
|
|
- const: fsl,imx7ulp-spi
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
items:
|
|
- description: SoC SPI per clock
|
|
- description: SoC SPI ipg clock
|
|
|
|
clock-names:
|
|
items:
|
|
- const: per
|
|
- const: ipg
|
|
|
|
fsl,spi-only-use-cs1-sel:
|
|
description:
|
|
spi common code does not support use of CS signals discontinuously.
|
|
i.MX8DXL-EVK board only uses CS1 without using CS0. Therefore, add
|
|
this property to re-config the chipselect value in the LPSPI driver.
|
|
type: boolean
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
- clocks
|
|
- clock-names
|
|
|
|
unevaluatedProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/clock/imx7ulp-clock.h>
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
|
|
spi@40290000 {
|
|
compatible = "fsl,imx7ulp-spi";
|
|
reg = <0x40290000 0x10000>;
|
|
interrupt-parent = <&intc>;
|
|
interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&clks IMX7ULP_CLK_LPSPI2>,
|
|
<&clks IMX7ULP_CLK_DUMMY>;
|
|
clock-names = "per", "ipg";
|
|
spi-slave;
|
|
fsl,spi-only-use-cs1-sel;
|
|
};
|