From fc3a1b2763d44ed471169e1dff2c8ce0fb352c1c Mon Sep 17 00:00:00 2001 From: Lad Prabhakar Date: Wed, 27 May 2020 21:23:33 +0100 Subject: [PATCH] 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 Reviewed-by: Marian-Cristian Rotariu Link: https://lore.kernel.org/r/1590611013-26029-4-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven --- arch/arm/boot/dts/r8a7742-iwg21d-q7.dts | 63 +++++++++++++++++++++++++ 1 file changed, 63 insertions(+) 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 @@ reg_1p5v: 1p5v { 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 @@ sdhi2_pins_uhs: sd2_uhs { 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 @@ &sdhi2 { sd-uhs-sdr50; status = "okay"; }; + +&ssi4 { + shared-pin; +};