1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/sound/rockc 4 $id: http://devicetree.org/schemas/sound/rockchip,pdm.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Rockchip PDM controller 7 title: Rockchip PDM controller
8 8
9 description: 9 description:
10 The Pulse Density Modulation Interface Contr 10 The Pulse Density Modulation Interface Controller (PDMC) is
11 a PDM interface controller and decoder that 11 a PDM interface controller and decoder that support PDM format.
12 It integrates a clock generator driving the 12 It integrates a clock generator driving the PDM microphone
13 and embeds filters which decimate the incomi 13 and embeds filters which decimate the incoming bit stream to
14 obtain most common audio rates. 14 obtain most common audio rates.
15 15
16 maintainers: 16 maintainers:
17 - Heiko Stuebner <heiko@sntech.de> 17 - Heiko Stuebner <heiko@sntech.de>
18 18
19 allOf: 19 allOf:
20 - $ref: dai-common.yaml# 20 - $ref: dai-common.yaml#
21 21
22 properties: 22 properties:
23 compatible: 23 compatible:
24 enum: 24 enum:
25 - rockchip,pdm 25 - rockchip,pdm
26 - rockchip,px30-pdm 26 - rockchip,px30-pdm
27 - rockchip,rk1808-pdm 27 - rockchip,rk1808-pdm
28 - rockchip,rk3308-pdm 28 - rockchip,rk3308-pdm
29 - rockchip,rk3568-pdm 29 - rockchip,rk3568-pdm
30 - rockchip,rv1126-pdm 30 - rockchip,rv1126-pdm
31 31
32 reg: 32 reg:
33 maxItems: 1 33 maxItems: 1
34 34
35 interrupts: 35 interrupts:
36 maxItems: 1 36 maxItems: 1
37 37
38 clocks: 38 clocks:
39 items: 39 items:
40 - description: clock for PDM controller 40 - description: clock for PDM controller
41 - description: clock for PDM BUS 41 - description: clock for PDM BUS
42 42
43 clock-names: 43 clock-names:
44 items: 44 items:
45 - const: pdm_clk 45 - const: pdm_clk
46 - const: pdm_hclk 46 - const: pdm_hclk
47 47
48 dmas: 48 dmas:
49 maxItems: 1 49 maxItems: 1
50 50
51 dma-names: 51 dma-names:
52 items: 52 items:
53 - const: rx 53 - const: rx
54 54
55 power-domains: 55 power-domains:
56 maxItems: 1 56 maxItems: 1
57 57
58 resets: 58 resets:
59 items: 59 items:
60 - description: reset for PDM controller 60 - description: reset for PDM controller
61 61
62 reset-names: 62 reset-names:
63 items: 63 items:
64 - const: pdm-m 64 - const: pdm-m
65 65
66 rockchip,path-map: 66 rockchip,path-map:
67 $ref: /schemas/types.yaml#/definitions/uin 67 $ref: /schemas/types.yaml#/definitions/uint32-array
68 description: 68 description:
69 Defines the mapping of PDM SDIx to PDM P 69 Defines the mapping of PDM SDIx to PDM PATHx.
70 By default, they are mapped one-to-one. 70 By default, they are mapped one-to-one.
71 maxItems: 4 71 maxItems: 4
72 uniqueItems: true 72 uniqueItems: true
73 items: 73 items:
74 enum: [ 0, 1, 2, 3 ] 74 enum: [ 0, 1, 2, 3 ]
75 75
76 "#sound-dai-cells": 76 "#sound-dai-cells":
77 const: 0 77 const: 0
78 78
79 required: 79 required:
80 - compatible 80 - compatible
81 - reg 81 - reg
82 - interrupts 82 - interrupts
83 - clocks 83 - clocks
84 - clock-names 84 - clock-names
85 - dmas 85 - dmas
86 - dma-names 86 - dma-names
87 - "#sound-dai-cells" 87 - "#sound-dai-cells"
88 88
89 unevaluatedProperties: false 89 unevaluatedProperties: false
90 90
91 examples: 91 examples:
92 - | 92 - |
93 #include <dt-bindings/clock/rk3328-cru.h> 93 #include <dt-bindings/clock/rk3328-cru.h>
94 #include <dt-bindings/interrupt-controller 94 #include <dt-bindings/interrupt-controller/arm-gic.h>
95 #include <dt-bindings/interrupt-controller 95 #include <dt-bindings/interrupt-controller/irq.h>
96 #include <dt-bindings/pinctrl/rockchip.h> 96 #include <dt-bindings/pinctrl/rockchip.h>
97 97
98 bus { 98 bus {
99 #address-cells = <2>; 99 #address-cells = <2>;
100 #size-cells = <2>; 100 #size-cells = <2>;
101 101
102 pdm@ff040000 { 102 pdm@ff040000 {
103 compatible = "rockchip,pdm"; 103 compatible = "rockchip,pdm";
104 reg = <0x0 0xff040000 0x0 0x1000>; 104 reg = <0x0 0xff040000 0x0 0x1000>;
105 interrupts = <GIC_SPI 82 IRQ_TYPE_ 105 interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
106 clocks = <&cru SCLK_PDM>, <&cru HC 106 clocks = <&cru SCLK_PDM>, <&cru HCLK_PDM>;
107 clock-names = "pdm_clk", "pdm_hclk 107 clock-names = "pdm_clk", "pdm_hclk";
108 dmas = <&dmac 16>; 108 dmas = <&dmac 16>;
109 dma-names = "rx"; 109 dma-names = "rx";
110 #sound-dai-cells = <0>; 110 #sound-dai-cells = <0>;
111 pinctrl-names = "default", "sleep" 111 pinctrl-names = "default", "sleep";
112 pinctrl-0 = <&pdmm0_clk 112 pinctrl-0 = <&pdmm0_clk
113 &pdmm0_sdi0 113 &pdmm0_sdi0
114 &pdmm0_sdi1 114 &pdmm0_sdi1
115 &pdmm0_sdi2 115 &pdmm0_sdi2
116 &pdmm0_sdi3>; 116 &pdmm0_sdi3>;
117 pinctrl-1 = <&pdmm0_clk_sleep 117 pinctrl-1 = <&pdmm0_clk_sleep
118 &pdmm0_sdi0_sleep 118 &pdmm0_sdi0_sleep
119 &pdmm0_sdi1_sleep 119 &pdmm0_sdi1_sleep
120 &pdmm0_sdi2_sleep 120 &pdmm0_sdi2_sleep
121 &pdmm0_sdi3_sleep>; 121 &pdmm0_sdi3_sleep>;
122 }; 122 };
123 }; 123 };
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