From d9288d0ba12de1b5efb830b9128e4cc6877318fc Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 22 Jun 2014 17:56:23 -0700 Subject: ASoC: rsnd: SSI + DMA can select BUSIF Sound data needs to be sent to R-Car sound SSI when playback. But, there are 2 interfaces for it. 1st is SSITDR/SSIRDR which are mapped on SSI. 2nd is SSIn_BUSIF which are mapped on SSIU. 2nd SSIn_BUSIF is used when DMA transfer, and it is always used if sound data came from via SRC. But, we can use it when SSI+DMA case too. (Current driver is assuming 1st SSITDR/SSIRDR for it) 2nd SSIn_BUSIF can be used as FIFO. This is very helpful/useful for SSI+DMA. But DMA address / DMA ID are not same between 1st/2nd cases. This patch care about these settings. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/renesas,rsnd.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt index 8346cab046cd..41a120c2389d 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt @@ -21,6 +21,7 @@ SSI subnode properties: - interrupts : Should contain SSI interrupt for PIO transfer - shared-pin : if shared clock pin - pio-transfer : use PIO transfer mode +- no-busif : BUSIF is not ussed when [mem -> SSI] via DMA case SRC subnode properties: no properties at this point -- cgit v1.2.3 From 34cb6123f90d264d63bdcd3ee0df0d2cb4b36aab Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Sun, 22 Jun 2014 17:59:28 -0700 Subject: ASoC: rsnd: add DT support to DVC Now, DVC can use DT Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/renesas,rsnd.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt index 41a120c2389d..aa697abf337e 100644 --- a/Documentation/devicetree/bindings/sound/renesas,rsnd.txt +++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.txt @@ -13,6 +13,9 @@ Required properties: - rcar_sound,src : Should contain SRC feature. The number of SRC subnode should be same as HW. see below for detail. +- rcar_sound,dvc : Should contain DVC feature. + The number of DVC subnode should be same as HW. + see below for detail. - rcar_sound,dai : DAI contents. The number of DAI subnode should be same as HW. see below for detail. @@ -40,6 +43,11 @@ rcar_sound: rcar_sound@0xffd90000 { <0 0xec540000 0 0x1000>, /* SSIU */ <0 0xec541000 0 0x1280>; /* SSI */ + rcar_sound,dvc { + dvc0: dvc@0 { }; + dvc1: dvc@1 { }; + }; + rcar_sound,src { src0: src@0 { }; src1: src@1 { }; -- cgit v1.2.3