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Renesas R-Car sound
Required properties:
- compatible : "renesas,rcar_sound-<soctype>", fallbacks
"renesas,rcar_sound-gen1" if generation1, and
"renesas,rcar_sound-gen2" if generation2
Examples with soctypes are:
- "renesas,rcar_sound-r8a7790" (R-Car H2)
- "renesas,rcar_sound-r8a7791" (R-Car M2-W)
- reg : Should contain the register physical address.
required register is
SRU/ADG/SSI if generation1
SRU/ADG/SSIU/SSI if generation2
- rcar_sound,ssi : Should contain SSI feature.
The number of SSI subnode should be same as HW.
see below for detail.
- rcar_sound,src : Should contain SRC feature.
The number of SRC subnode should be same as HW.
see below for detail.
- rcar_sound,dvc : Should contain DVC feature.
The number of DVC subnode should be same as HW.
see below for detail.
- rcar_sound,dai : DAI contents.
The number of DAI subnode should be same as HW.
see below for detail.
SSI subnode properties:
- interrupts : Should contain SSI interrupt for PIO transfer
- shared-pin : if shared clock pin
- pio-transfer : use PIO transfer mode
- no-busif : BUSIF is not ussed when [mem -> SSI] via DMA case
SRC subnode properties:
no properties at this point
DAI subnode properties:
- playback : list of playback modules
- capture : list of capture modules
Example:
rcar_sound: rcar_sound@ec500000 {
#sound-dai-cells = <1>;
compatible = "renesas,rcar_sound-r8a7791", "renesas,rcar_sound-gen2";
reg = <0 0xec500000 0 0x1000>, /* SCU */
<0 0xec5a0000 0 0x100>, /* ADG */
<0 0xec540000 0 0x1000>, /* SSIU */
<0 0xec541000 0 0x1280>; /* SSI */
rcar_sound,dvc {
dvc0: dvc@0 { };
dvc1: dvc@1 { };
};
rcar_sound,src {
src0: src@0 { };
src1: src@1 { };
src2: src@2 { };
src3: src@3 { };
src4: src@4 { };
src5: src@5 { };
src6: src@6 { };
src7: src@7 { };
src8: src@8 { };
src9: src@9 { };
};
rcar_sound,ssi {
ssi0: ssi@0 {
interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
};
ssi1: ssi@1 {
interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
};
ssi2: ssi@2 {
interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
};
ssi3: ssi@3 {
interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
};
ssi4: ssi@4 {
interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
};
ssi5: ssi@5 {
interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
};
ssi6: ssi@6 {
interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
};
ssi7: ssi@7 {
interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
};
ssi8: ssi@8 {
interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
};
ssi9: ssi@9 {
interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
};
};
rcar_sound,dai {
dai0 {
playback = <&ssi5 &src5>;
capture = <&ssi6>;
};
dai1 {
playback = <&ssi3>;
};
dai2 {
capture = <&ssi4>;
};
dai3 {
playback = <&ssi7>;
};
dai4 {
capture = <&ssi8>;
};
};
};
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