tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2# Copyright 2019,2020 Lubomir Rintel <lkundrak@v3.sk>
3%YAML 1.2
4---
5$id: http://devicetree.org/schemas/spi/marvell,mmp2-ssp.yaml#
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: PXA2xx SSP SPI Controller
9
10maintainers:
11 - Lubomir Rintel <lkundrak@v3.sk>
12
13properties:
14 compatible:
15 enum:
16 - marvell,mmp2-ssp
17 - mrvl,ce4100-ssp
18 - mvrl,pxa168-ssp
19 - mrvl,pxa25x-ssp
20 - mvrl,pxa25x-nssp
21 - mrvl,pxa27x-ssp
22 - mrvl,pxa3xx-ssp
23 - mrvl,pxa910-ssp
24
25 interrupts:
26 maxItems: 1
27
28 reg:
29 maxItems: 1
30
31 clocks:
32 maxItems: 1
33
34 dmas:
35 items:
36 - description: Receive DMA
37 - description: Transmit DMA
38
39 dma-names:
40 items:
41 - const: rx
42 - const: tx
43
44 ready-gpios:
45 description: |
46 GPIO used to signal a SPI master that the FIFO is filled and we're
47 ready to service a transfer. Only useful in slave mode.
48 maxItems: 1
49
50required:
51 - compatible
52 - reg
53 - interrupts
54 - clocks
55
56dependencies:
57 ready-gpios: [ spi-slave ]
58
59allOf:
60 - $ref: spi-controller.yaml#
61 - if:
62 properties:
63 compatible:
64 contains:
65 const: marvell,mmp2-ssp
66 then:
67 properties:
68 dmas: false
69 dma-names: false
70
71unevaluatedProperties: false
72
73examples:
74 - |
75 #include <dt-bindings/clock/marvell,mmp2.h>
76 spi@d4035000 {
77 compatible = "marvell,mmp2-ssp";
78 #address-cells = <1>;
79 #size-cells = <0>;
80 reg = <0xd4035000 0x1000>;
81 clocks = <&soc_clocks MMP2_CLK_SSP0>;
82 interrupts = <0>;
83 };
84
85...