Files
linux/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml
Krzysztof Kozlowski 7234d746a8 spi: dt-bindings: qcom,spi-qcom-qspi: document OPP and power-domains
QSPI on Qualcomm SDM845, SC7180 and SC7280 SoCs uses OPP table (both in
DTS and Linux driver) and is suuplied by CX power domain.  Document
missing properties to fix:

  sc7280-idp2.dtb: spi@88dc000: Unevaluated properties are not allowed ('operating-points-v2', 'power-domains' were unexpected)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230217155802.848178-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-02-17 19:18:54 +00:00

98 lines
2.1 KiB
YAML

# 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:
- Bjorn Andersson <bjorn.andersson@linaro.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: /schemas/spi/spi-controller.yaml#
properties:
compatible:
items:
- enum:
- qcom,sc7180-qspi
- qcom,sc7280-qspi
- 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
interconnects:
minItems: 1
maxItems: 2
interconnect-names:
minItems: 1
items:
- const: qspi-config
- const: qspi-memory
operating-points-v2: true
power-domains:
maxItems: 1
required:
- compatible
- reg
- interrupts
- clock-names
- clocks
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,gcc-sdm845.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
soc: soc {
#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>;
};
};
};
...