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From cff2d1cef1b620c0bafeefd127c8d11a6579aced Mon Sep 17 00:00:00 2001
From: Biju Das <biju.das@bp.renesas.com>
Date: Thu, 2 Apr 2015 14:04:22 +0100
Subject: [PATCH 6/7] ARM: shmobile: porter: 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]

This change is identical to the koelsch patch "ARM: shmobile: koelsch: Sound DMA support via DVC on DTS"
from Kuninori Morimoto and backported to 3.10
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
---
 arch/arm/boot/dts/r8a7791-porter.dts |   13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/r8a7791-porter.dts b/arch/arm/boot/dts/r8a7791-porter.dts
index f35cc33..fcb9edd 100644
--- a/arch/arm/boot/dts/r8a7791-porter.dts
+++ b/arch/arm/boot/dts/r8a7791-porter.dts
@@ -14,7 +14,14 @@
  *
  * This command is required when Playback/Capture
  *
- * amixer set "LINEOUT Mixer DACL" on
+ *	amixer set "LINEOUT Mixer DACL" on
+ *	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
  */
 
 /dts-v1/;
@@ -421,8 +428,8 @@
 
 	rcar_sound,dai {
 		dai0 {
-			playback = <&ssi0 &src0>;
-			capture  = <&ssi1 &src1>;
+			playback = <&ssi0 &src0 &dvc0>;
+			capture  = <&ssi1 &src1 &dvc1>;
 		};
 	};
 };
-- 
1.7.9.5