1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/qcom,spi-qup.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm Universal Peripheral (QUP) Serial Peripheral Interface (SPI)
8
9maintainers:
10  - Andy Gross <agross@kernel.org>
11  - Bjorn Andersson <bjorn.andersson@linaro.org>
12  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
13
14description:
15  The QUP core is an AHB slave that provides a common data path (an output FIFO
16  and an input FIFO) for serial peripheral interface (SPI) mini-core.
17
18  SPI in master mode supports up to 50MHz, up to four chip selects,
19  programmable data path from 4 bits to 32 bits and numerous protocol variants.
20
21allOf:
22  - $ref: /schemas/spi/spi-controller.yaml#
23
24properties:
25  compatible:
26    enum:
27      - qcom,spi-qup-v1.1.1 # for 8660, 8960 and 8064
28      - qcom,spi-qup-v2.1.1 # for 8974 and later
29      - qcom,spi-qup-v2.2.1 # for 8974 v2 and later
30
31  clocks:
32    maxItems: 2
33
34  clock-names:
35    items:
36      - const: core
37      - const: iface
38
39  dmas:
40    maxItems: 2
41
42  dma-names:
43    items:
44      - const: tx
45      - const: rx
46
47  interrupts:
48    maxItems: 1
49
50  reg:
51    maxItems: 1
52
53required:
54  - compatible
55  - clocks
56  - clock-names
57  - interrupts
58  - reg
59
60unevaluatedProperties: false
61
62examples:
63  - |
64    #include <dt-bindings/clock/qcom,gcc-msm8996.h>
65    #include <dt-bindings/interrupt-controller/arm-gic.h>
66
67    spi@7575000 {
68        compatible = "qcom,spi-qup-v2.2.1";
69        reg = <0x07575000 0x600>;
70        interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
71        clocks = <&gcc GCC_BLSP1_QUP1_SPI_APPS_CLK>,
72                 <&gcc GCC_BLSP1_AHB_CLK>;
73        clock-names = "core", "iface";
74        pinctrl-names = "default", "sleep";
75        pinctrl-0 = <&blsp1_spi1_default>;
76        pinctrl-1 = <&blsp1_spi1_sleep>;
77        dmas = <&blsp1_dma 12>, <&blsp1_dma 13>;
78        dma-names = "tx", "rx";
79        #address-cells = <1>;
80        #size-cells = <0>;
81    };
82