porter: kernel: migrate porter board audio from platform data to DTS

Kernel BSP v1.9.0 contained a backported ASoC and dma descriptor mode driver for AUDIO-DMAC from the upstream kernel.
This patch series migrates the R-Car M2 Porter board audio from platform data to DTS to make use of this driver and
restore audio on the board.

1 files changed, 44 insertions, 0 deletions

diff --git a/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0005-ARM-shmobile-porter-Sound-DMA-support-via-SRC-on-DTS.patch b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0005-ARM-shmobile-porter-Sound-DMA-support-via-SRC-on-DTS.patch
new file mode 100644
index 0000000..bb6a9d7
--- /dev/null
+++ b/meta-rcar-gen2/recipes-kernel/linux/linux-renesas/0005-ARM-shmobile-porter-Sound-DMA-support-via-SRC-on-DTS.patch
@@ -0,0 +1,44 @@
+From e902b2b063a67517922bf4e154258ed27db34b8b Mon Sep 17 00:00:00 2001
+From: Biju Das <biju.das@bp.renesas.com>
+Date: Thu, 2 Apr 2015 13:16:44 +0100
+Subject: [PATCH 5/7] ARM: shmobile: porter: Sound DMA support via SRC on DTS
+
+DMA transfer to/from SRC
+
+     DMA      DMApp
+[MEM] -> [SRC] -> [SSIU] -> [SSI]
+
+     DMA      DMApp
+[MEM] <- [SRC] <- [SSIU] <- [SSI]
+
+Current sound driver is supporting
+SSI/SRC random connection.
+So, this patch is tring
+SSI0 -> SRC0
+SSI1 <- SRC1
+
+This change is identical to the koelsch patch "ARM: shmobile: koelsch: Sound DMA support via SRC 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 |    4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/arch/arm/boot/dts/r8a7791-porter.dts b/arch/arm/boot/dts/r8a7791-porter.dts
+index 10549ac..f35cc33 100644
+--- a/arch/arm/boot/dts/r8a7791-porter.dts
++++ b/arch/arm/boot/dts/r8a7791-porter.dts
+@@ -421,8 +421,8 @@
+ 
+ 	rcar_sound,dai {
+ 		dai0 {
+-			playback = <&ssi0>;
+-			capture  = <&ssi1>;
++			playback = <&ssi0 &src0>;
++			capture  = <&ssi1 &src1>;
+ 		};
+ 	};
+ };
+-- 
+1.7.9.5
+