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
7 title: Qualcomm Universal Peripheral (QUP) Serial Peripheral Interface (SPI)
8
9 maintainers:
10 - Andy Gross <agross@kernel.org>
11 - Bjorn Andersson <bjorn.andersson@linaro.org>
12 - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
13
14 description:
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
21 allOf:
22 - $ref: /schemas/spi/spi-controller.yaml#
23
24 properties:
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 interconnects:
48 maxItems: 1
49
50 interrupts:
51 maxItems: 1
52
53 operating-points-v2: true
54
55 power-domains:
56 maxItems: 1
57
58 reg:
59 maxItems: 1
60
61 required:
62 - compatible
63 - clocks
64 - clock-names
65 - interrupts
66 - reg
67
68 unevaluatedProperties: false
69
70 examples:
71 - |
72 #include <dt-bindings/clock/qcom,gcc-msm8996.h>
73 #include <dt-bindings/interconnect/qcom,msm8996.h>
74 #include <dt-bindings/interrupt-controller/arm-gic.h>
75 #include <dt-bindings/power/qcom-rpmpd.h>
76
77 spi@7575000 {
78 compatible = "qcom,spi-qup-v2.2.1";
79 reg = <0x07575000 0x600>;
80 interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
81 clocks = <&gcc GCC_BLSP1_QUP1_SPI_APPS_CLK>,
82 <&gcc GCC_BLSP1_AHB_CLK>;
83 clock-names = "core", "iface";
84 pinctrl-names = "default", "sleep";
85 pinctrl-0 = <&blsp1_spi1_default>;
86 pinctrl-1 = <&blsp1_spi1_sleep>;
87 dmas = <&blsp1_dma 12>, <&blsp1_dma 13>;
88 dma-names = "tx", "rx";
89 power-domains = <&rpmpd MSM8996_VDDCX>;
90 operating-points-v2 = <&spi_opp_table>;
91 interconnects = <&pnoc MASTER_BLSP_1 &bimc SLAVE_EBI_CH0>;
92 #address-cells = <1>;
93 #size-cells = <0>;
94 };
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