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dt-bindings: spi: Convert QSPI bindings to YAML

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Convert QSPI bindings to DT schema format using json-schema.

Signed-off-by: Akash Asthana <akashast@codeaurora.org>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Akash Asthana 2020-03-13 16:45:20 +05:30 committed by Rob Herring
parent 8f5a0a3750
commit d2423aa003
2 changed files with 79 additions and 36 deletions
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36
Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.txt
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Qualcomm Quad Serial Peripheral Interface (QSPI)
The QSPI controller allows SPI protocol communication in single, dual, or quad
wire transmission modes for read/write access to slaves such as NOR flash.
Required properties:
- compatible: An SoC specific identifier followed by "qcom,qspi-v1", such as
"qcom,sdm845-qspi", "qcom,qspi-v1"
- reg: Should contain the base register location and length.
- interrupts: Interrupt number used by the controller.
- clocks: Should contain the core and AHB clock.
- clock-names: Should be "core" for core clock and "iface" for AHB clock.
SPI slave nodes must be children of the SPI master node and can contain
properties described in Documentation/devicetree/bindings/spi/spi-bus.txt
Example:
qspi: spi@88df000 {
compatible = "qcom,sdm845-qspi", "qcom,qspi-v1";
reg = <0x88df000 0x600>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "iface", "core";
clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
<&gcc GCC_QSPI_CORE_CLK>;
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <25000000>;
spi-tx-bus-width = <2>;
spi-rx-bus-width = <2>;
};
};

79
Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/spi/qcom,spi-qcom-qspi.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Qualcomm Quad Serial Peripheral Interface (QSPI)
maintainers:
- Mukesh Savaliya <msavaliy@codeaurora.org>
- Akash Asthana <akashast@codeaurora.org>
description:
The QSPI controller allows SPI protocol communication in single, dual, or quad
wire transmission modes for read/write access to slaves such as NOR flash.
allOf:
- $ref: /spi/spi-controller.yaml#
properties:
compatible:
items:
- const: qcom,sdm845-qspi
- const: qcom,qspi-v1
reg:
maxItems: 1
interrupts:
maxItems: 1
clock-names:
items:
- const: iface
- const: core
clocks:
items:
- description: AHB clock
- description: QSPI core clock
required:
- compatible
- reg
- interrupts
- clock-names
- clocks
examples:
- |
#include <dt-bindings/clock/qcom,gcc-sdm845.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
soc: soc@0 {
#address-cells = <2>;
#size-cells = <2>;
qspi: spi@88df000 {
compatible = "qcom,sdm845-qspi", "qcom,qspi-v1";
reg = <0 0x88df000 0 0x600>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
clock-names = "iface", "core";
clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
<&gcc GCC_QSPI_CORE_CLK>;
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <25000000>;
spi-tx-bus-width = <2>;
spi-rx-bus-width = <2>;
};
};
};
...