0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/spi/qcom,spi-qup.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Qualcomm Universal Peripheral (QUP) Serial Peripheral Interface (SPI)
0008
0009 maintainers:
0010 - Andy Gross <agross@kernel.org>
0011 - Bjorn Andersson <bjorn.andersson@linaro.org>
0012 - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
0013
0014 description:
0015 The QUP core is an AHB slave that provides a common data path (an output FIFO
0016 and an input FIFO) for serial peripheral interface (SPI) mini-core.
0017
0018 SPI in master mode supports up to 50MHz, up to four chip selects,
0019 programmable data path from 4 bits to 32 bits and numerous protocol variants.
0020
0021 allOf:
0022 - $ref: /schemas/spi/spi-controller.yaml#
0023
0024 properties:
0025 compatible:
0026 enum:
0027 - qcom,spi-qup-v1.1.1 # for 8660, 8960 and 8064
0028 - qcom,spi-qup-v2.1.1 # for 8974 and later
0029 - qcom,spi-qup-v2.2.1 # for 8974 v2 and later
0030
0031 clocks:
0032 maxItems: 2
0033
0034 clock-names:
0035 items:
0036 - const: core
0037 - const: iface
0038
0039 dmas:
0040 maxItems: 2
0041
0042 dma-names:
0043 items:
0044 - const: tx
0045 - const: rx
0046
0047 interrupts:
0048 maxItems: 1
0049
0050 reg:
0051 maxItems: 1
0052
0053 required:
0054 - compatible
0055 - clocks
0056 - clock-names
0057 - interrupts
0058 - reg
0059
0060 unevaluatedProperties: false
0061
0062 examples:
0063 - |
0064 #include <dt-bindings/clock/qcom,gcc-msm8996.h>
0065 #include <dt-bindings/interrupt-controller/arm-gic.h>
0066
0067 spi@7575000 {
0068 compatible = "qcom,spi-qup-v2.2.1";
0069 reg = <0x07575000 0x600>;
0070 interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
0071 clocks = <&gcc GCC_BLSP1_QUP1_SPI_APPS_CLK>,
0072 <&gcc GCC_BLSP1_AHB_CLK>;
0073 clock-names = "core", "iface";
0074 pinctrl-names = "default", "sleep";
0075 pinctrl-0 = <&blsp1_spi1_default>;
0076 pinctrl-1 = <&blsp1_spi1_sleep>;
0077 dmas = <&blsp1_dma 12>, <&blsp1_dma 13>;
0078 dma-names = "tx", "rx";
0079 #address-cells = <1>;
0080 #size-cells = <0>;
0081 };
