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[20/23,v3] ARM: shmobile: koelsch: Sound DMA support via DVC on DTS

Message ID 877fzb91kt.wl%kuninori.morimoto.gx@gmail.com (mailing list archive)
State Accepted
Commit 5c6d4b947aeca23e10f7d4ddf2041eda51b0ded2
Delegated to: Simon Horman
Headers show

Commit Message

Kuninori Morimoto Nov. 4, 2014, 1:49 a.m. UTC 
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

DMA transfer uses DVC

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

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

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
v2 -> v3

 - no change

 arch/arm/boot/dts/r8a7791-koelsch.dts |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
index 2f975a1..df283d2 100644
--- a/arch/arm/boot/dts/r8a7791-koelsch.dts
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -20,6 +20,13 @@ 
  * This command is required when Playback/Capture
  *
  *	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/;
@@ -569,8 +576,8 @@ 
 
 	rcar_sound,dai {
 		dai0 {
-			playback = <&ssi0 &src2>;
-			capture  = <&ssi1 &src3>;
+			playback = <&ssi0 &src2 &dvc0>;
+			capture  = <&ssi1 &src3 &dvc1>;
 		};
 	};
 };