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: <<
20 - $ref: dai-common.yaml# <<
21 <<
22 properties: 19 properties:
23 compatible: 20 compatible:
24 enum: 21 enum:
25 - rockchip,pdm 22 - rockchip,pdm
26 - rockchip,px30-pdm 23 - rockchip,px30-pdm
27 - rockchip,rk1808-pdm 24 - rockchip,rk1808-pdm
28 - rockchip,rk3308-pdm 25 - rockchip,rk3308-pdm
29 - rockchip,rk3568-pdm 26 - rockchip,rk3568-pdm
30 - rockchip,rv1126-pdm 27 - rockchip,rv1126-pdm
31 28
32 reg: 29 reg:
33 maxItems: 1 30 maxItems: 1
34 31
35 interrupts: 32 interrupts:
36 maxItems: 1 33 maxItems: 1
37 34
38 clocks: 35 clocks:
39 items: 36 items:
40 - description: clock for PDM controller 37 - description: clock for PDM controller
41 - description: clock for PDM BUS 38 - description: clock for PDM BUS
42 39
43 clock-names: 40 clock-names:
44 items: 41 items:
45 - const: pdm_clk 42 - const: pdm_clk
46 - const: pdm_hclk 43 - const: pdm_hclk
47 44
48 dmas: 45 dmas:
49 maxItems: 1 46 maxItems: 1
50 47
51 dma-names: 48 dma-names:
52 items: 49 items:
53 - const: rx 50 - const: rx
54 51
55 power-domains: 52 power-domains:
56 maxItems: 1 53 maxItems: 1
57 54
58 resets: 55 resets:
59 items: 56 items:
60 - description: reset for PDM controller 57 - description: reset for PDM controller
61 58
62 reset-names: 59 reset-names:
63 items: 60 items:
64 - const: pdm-m 61 - const: pdm-m
65 62
66 rockchip,path-map: 63 rockchip,path-map:
67 $ref: /schemas/types.yaml#/definitions/uin 64 $ref: /schemas/types.yaml#/definitions/uint32-array
68 description: 65 description:
69 Defines the mapping of PDM SDIx to PDM P 66 Defines the mapping of PDM SDIx to PDM PATHx.
70 By default, they are mapped one-to-one. 67 By default, they are mapped one-to-one.
71 maxItems: 4 68 maxItems: 4
72 uniqueItems: true 69 uniqueItems: true
73 items: 70 items:
74 enum: [ 0, 1, 2, 3 ] 71 enum: [ 0, 1, 2, 3 ]
75 72
76 "#sound-dai-cells": 73 "#sound-dai-cells":
77 const: 0 74 const: 0
78 75
79 required: 76 required:
80 - compatible 77 - compatible
81 - reg 78 - reg
82 - interrupts 79 - interrupts
83 - clocks 80 - clocks
84 - clock-names 81 - clock-names
85 - dmas 82 - dmas
86 - dma-names 83 - dma-names
87 - "#sound-dai-cells" 84 - "#sound-dai-cells"
88 85
89 unevaluatedProperties: false !! 86 additionalProperties: false
90 87
91 examples: 88 examples:
92 - | 89 - |
93 #include <dt-bindings/clock/rk3328-cru.h> 90 #include <dt-bindings/clock/rk3328-cru.h>
94 #include <dt-bindings/interrupt-controller 91 #include <dt-bindings/interrupt-controller/arm-gic.h>
95 #include <dt-bindings/interrupt-controller 92 #include <dt-bindings/interrupt-controller/irq.h>
96 #include <dt-bindings/pinctrl/rockchip.h> 93 #include <dt-bindings/pinctrl/rockchip.h>
97 94
98 bus { 95 bus {
99 #address-cells = <2>; 96 #address-cells = <2>;
100 #size-cells = <2>; 97 #size-cells = <2>;
101 98
102 pdm@ff040000 { 99 pdm@ff040000 {
103 compatible = "rockchip,pdm"; 100 compatible = "rockchip,pdm";
104 reg = <0x0 0xff040000 0x0 0x1000>; 101 reg = <0x0 0xff040000 0x0 0x1000>;
105 interrupts = <GIC_SPI 82 IRQ_TYPE_ 102 interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
106 clocks = <&cru SCLK_PDM>, <&cru HC 103 clocks = <&cru SCLK_PDM>, <&cru HCLK_PDM>;
107 clock-names = "pdm_clk", "pdm_hclk 104 clock-names = "pdm_clk", "pdm_hclk";
108 dmas = <&dmac 16>; 105 dmas = <&dmac 16>;
109 dma-names = "rx"; 106 dma-names = "rx";
110 #sound-dai-cells = <0>; 107 #sound-dai-cells = <0>;
111 pinctrl-names = "default", "sleep" 108 pinctrl-names = "default", "sleep";
112 pinctrl-0 = <&pdmm0_clk 109 pinctrl-0 = <&pdmm0_clk
113 &pdmm0_sdi0 110 &pdmm0_sdi0
114 &pdmm0_sdi1 111 &pdmm0_sdi1
115 &pdmm0_sdi2 112 &pdmm0_sdi2
116 &pdmm0_sdi3>; 113 &pdmm0_sdi3>;
117 pinctrl-1 = <&pdmm0_clk_sleep 114 pinctrl-1 = <&pdmm0_clk_sleep
118 &pdmm0_sdi0_sleep 115 &pdmm0_sdi0_sleep
119 &pdmm0_sdi1_sleep 116 &pdmm0_sdi1_sleep
120 &pdmm0_sdi2_sleep 117 &pdmm0_sdi2_sleep
121 &pdmm0_sdi3_sleep>; 118 &pdmm0_sdi3_sleep>;
122 }; 119 };
123 }; 120 };
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