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| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2020-05-27 23:23:33 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2020-06-15 11:28:46 +0300 |
| commit | fc3a1b2763d44ed471169e1dff2c8ce0fb352c1c (patch) | |
| tree | c686ce8ece7f7ab5d810bcbc8027d76dcf273992 /arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | |
| parent | 436765010f266a2afd6c9afd15233225448a3e8d (diff) | |
| download | linux-fc3a1b2763d44ed471169e1dff2c8ce0fb352c1c.tar.xz | |
ARM: dts: r8a7742-iwg21d-q7: Sound DMA support via DVC on DTS
Enable sound with DMA support on carrier board.
DMA transfer uses DVC
DMA DMApp
[MEM] -> [SRC] -> [DVC] -> [SSIU] -> [SSI]
DMA DMApp
[MEM] <- [DVC] <- [SRC] <- [SSIU] <- [SSI]
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1590611013-26029-4-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'arch/arm/boot/dts/r8a7742-iwg21d-q7.dts')
| -rw-r--r-- | arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts index ff4fca9c35af..e90aaf1c94f0 100644 --- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts +++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts @@ -5,6 +5,29 @@ * Copyright (C) 2020 Renesas Electronics Corp. */ +/* + * SSI-SGTL5000 + * + * This command is required when Playback/Capture + * + * amixer set "DVC Out" 100% + * amixer set "DVC In" 100% + * + * You can use Mute + * + * amixer set "DVC Out Mute" on + * amixer set "DVC In Mute" on + * + * You can use Volume Ramp + * + * amixer set "DVC Out Ramp Up Rate" "0.125 dB/64 steps" + * amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps" + * amixer set "DVC Out Ramp" on + * aplay xxx.wav & + * amixer set "DVC Out" 80% // Volume Down + * amixer set "DVC Out" 100% // Volume Up + */ + /dts-v1/; #include "r8a7742-iwg21m.dtsi" @@ -37,6 +60,21 @@ regulator-always-on; }; + rsnd_sgtl5000: sound { + compatible = "simple-audio-card"; + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&sndcodec>; + simple-audio-card,frame-master = <&sndcodec>; + + sndcpu: simple-audio-card,cpu { + sound-dai = <&rcar_sound>; + }; + + sndcodec: simple-audio-card,codec { + sound-dai = <&sgtl5000>; + }; + }; + vcc_sdhi2: regulator-vcc-sdhi2 { compatible = "regulator-fixed"; @@ -125,6 +163,27 @@ function = "sdhi2"; power-source = <1800>; }; + + sound_pins: sound { + groups = "ssi34_ctrl", "ssi3_data", "ssi4_data"; + function = "ssi"; + }; +}; + +&rcar_sound { + pinctrl-0 = <&sound_pins>; + pinctrl-names = "default"; + status = "okay"; + + /* Single DAI */ + #sound-dai-cells = <0>; + + rcar_sound,dai { + dai0 { + playback = <&ssi4 &src4 &dvc1>; + capture = <&ssi3 &src3 &dvc0>; + }; + }; }; &rwdt { @@ -159,3 +218,7 @@ sd-uhs-sdr50; status = "okay"; }; + +&ssi4 { + shared-pin; +}; |