1Renesas R-Car sound
2
3Required properties:
4- compatible			: "renesas,rcar_sound-<soctype>", fallbacks
5				  "renesas,rcar_sound-gen1" if generation1, and
6				  "renesas,rcar_sound-gen2" if generation2
7				  Examples with soctypes are:
8				    - "renesas,rcar_sound-r8a7790" (R-Car H2)
9				    - "renesas,rcar_sound-r8a7791" (R-Car M2-W)
10- reg				: Should contain the register physical address.
11				  required register is
12				   SRU/ADG/SSI      if generation1
13				   SRU/ADG/SSIU/SSI if generation2
14- rcar_sound,ssi		: Should contain SSI feature.
15				  The number of SSI subnode should be same as HW.
16				  see below for detail.
17- rcar_sound,src		: Should contain SRC feature.
18				  The number of SRC subnode should be same as HW.
19				  see below for detail.
20- rcar_sound,dvc		: Should contain DVC feature.
21				  The number of DVC subnode should be same as HW.
22				  see below for detail.
23- rcar_sound,dai		: DAI contents.
24				  The number of DAI subnode should be same as HW.
25				  see below for detail.
26
27SSI subnode properties:
28- interrupts			: Should contain SSI interrupt for PIO transfer
29- shared-pin			: if shared clock pin
30- pio-transfer			: use PIO transfer mode
31- no-busif			: BUSIF is not ussed when [mem -> SSI] via DMA case
32
33SRC subnode properties:
34no properties at this point
35
36DAI subnode properties:
37- playback			: list of playback modules
38- capture			: list of capture  modules
39
40Example:
41
42rcar_sound: rcar_sound@ec500000 {
43	#sound-dai-cells = <1>;
44	compatible = "renesas,rcar_sound-r8a7791", "renesas,rcar_sound-gen2";
45	reg =	<0 0xec500000 0 0x1000>, /* SCU */
46		<0 0xec5a0000 0 0x100>,  /* ADG */
47		<0 0xec540000 0 0x1000>, /* SSIU */
48		<0 0xec541000 0 0x1280>; /* SSI */
49
50	rcar_sound,dvc {
51		dvc0: dvc@0 { };
52		dvc1: dvc@1 { };
53	};
54
55	rcar_sound,src {
56		src0: src@0 { };
57		src1: src@1 { };
58		src2: src@2 { };
59		src3: src@3 { };
60		src4: src@4 { };
61		src5: src@5 { };
62		src6: src@6 { };
63		src7: src@7 { };
64		src8: src@8 { };
65		src9: src@9 { };
66	};
67
68	rcar_sound,ssi {
69		ssi0: ssi@0 {
70			interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
71		};
72		ssi1: ssi@1 {
73			interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
74		};
75		ssi2: ssi@2 {
76			interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
77		};
78		ssi3: ssi@3 {
79			interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
80		};
81		ssi4: ssi@4 {
82			interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
83		};
84		ssi5: ssi@5 {
85			interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
86		};
87		ssi6: ssi@6 {
88			interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
89		};
90		ssi7: ssi@7 {
91			interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
92		};
93		ssi8: ssi@8 {
94			interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
95		};
96		ssi9: ssi@9 {
97			interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
98		};
99	};
100
101	rcar_sound,dai {
102		dai0 {
103			playback = <&ssi5 &src5>;
104			capture  = <&ssi6>;
105		};
106		dai1 {
107			playback = <&ssi3>;
108		};
109		dai2 {
110			capture  = <&ssi4>;
111		};
112		dai3 {
113			playback = <&ssi7>;
114		};
115		dai4 {
116			capture  = <&ssi8>;
117		};
118	};
119};
120