Commit 0ed33948 authored by Biju Das's avatar Biju Das Committed by Simon Horman
Browse files

ARM: dts: iwg20d-q7-common: Sound DMA support via DVC on DTS 



DMA transfer uses DVC

     DMA               DMApp
[MEM] -> [SRC] -> [DVC] -> [SSIU] -> [SSI]

     DMA               DMApp
[MEM] <- [DVC] <- [SRC] <- [SSIU] <- [SSI]

Signed-off-by: default avatarBiju Das <biju.das@bp.renesas.com>
Reviewed-by: default avatarFabrizio Castro <fabrizio.castro@bp.renesas.com>
Acked-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent b4b20945

arch/arm/boot/dts/iwg20d-q7-common.dtsi

+25 −2
Original line number Diff line number Diff line
@@ -8,6 +8,29 @@ 
 * kind, whether express or implied.

 */



/*

 * 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

 */



/ {

	aliases {

		serial0 = &scif0;
@@ -208,8 +231,8 @@ 


	rcar_sound,dai {

		dai0 {

			playback = <&ssi1 &src3>;

			capture = <&ssi0 &src2>;

			playback = <&ssi1 &src3 &dvc1>;

			capture = <&ssi0 &src2 &dvc0>;

		};

	};

};

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