blob: 12420250f8296c4263d62228334fcee414f5c3d1 [file] [log] [blame]
From f87de542993a477775e8e66bf7881a6c21ef8066 Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das@bp.renesas.com>
Date: Wed, 20 Dec 2017 20:02:05 +0000
Subject: [PATCH 0754/1795] ARM: dts: iwg22d-sodimm: 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: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit 6f41d5e0872e4b55a5352ff79ab2452bff306753)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts | 27 +++++++++++++++++++--
1 file changed, 25 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
index 2cac57c7c44d..a4058f4cfbcd 100644
--- a/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
+++ b/arch/arm/boot/dts/r8a7745-iwg22d-sodimm.dts
@@ -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
+ */
+
/dts-v1/;
#include "r8a7745-iwg22m.dtsi"
@@ -183,8 +206,8 @@
rcar_sound,dai {
dai0 {
- playback = <&ssi3 &src3>;
- capture = <&ssi4 &src4>;
+ playback = <&ssi3 &src3 &dvc0>;
+ capture = <&ssi4 &src4 &dvc1>;
};
};
};
--
2.19.0