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From: Kuninori Morimoto <kuninori.morimoto.gx@gmail.com>
To: linux-sh@vger.kernel.org
Subject: [PATCH 09/12 v2] ARM: shmobile: lager: Sound DMA support via DVC on DTS
Date: Fri, 31 Oct 2014 00:26:51 +0000	[thread overview]
Message-ID: <87k33h2ies.wl%kuninori.morimoto.gx@gmail.com> (raw)

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>
---
v1 -> v2

- no change

 arch/arm/boot/dts/r8a7790-lager.dts |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
index 06365de..7aab833 100644
--- a/arch/arm/boot/dts/r8a7790-lager.dts
+++ b/arch/arm/boot/dts/r8a7790-lager.dts
@@ -19,6 +19,13 @@
  * 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/;
@@ -567,8 +574,8 @@
 
 	rcar_sound,dai {
 		dai0 {
-			playback = <&ssi0 &src2>;
-			capture  = <&ssi1 &src3>;
+			playback = <&ssi0 &src2 &dvc0>;
+			capture  = <&ssi1 &src3 &dvc1>;
 		};
 	};
 };
-- 
1.7.9.5


                 reply	other threads:[~2014-10-31  0:26 UTC|newest]

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