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authorNicolin Chen <b42378@freescale.com>2013-11-13 15:55:25 +0100
committerVinod Koul <vinod.koul@intel.com>2013-12-16 04:48:48 +0100
commit1a895578d4e50577bb6aa79bd194b502f09dd768 (patch)
tree9f8ae02613713c5242f35eb975e621e5b848be3f /Documentation/devicetree
parentdma: imx-sdma: Add sdma firmware version 2 support (diff)
downloadlinux-1a895578d4e50577bb6aa79bd194b502f09dd768.tar.xz
linux-1a895578d4e50577bb6aa79bd194b502f09dd768.zip
dma: imx-sdma: Add new dma type for ssi dual fifo script
This patch adds a new DMA_TYPE for SSI dual FIFO script, included in SDMA firmware version 2. This script would allow SSI use dual fifo mode to transimit/receive data without occasional hardware underrun/overrun. Signed-off-by: Nicolin Chen <b42378@freescale.com> Acked-by: Kumar Gala <galak@codeaurora.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
index 4fa814d38321..68b83ecc3850 100644
--- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
@@ -42,6 +42,7 @@ The full ID of peripheral types can be found below.
19 IPU Memory
20 ASRC
21 ESAI
+ 22 SSI Dual FIFO (needs firmware ver >= 2)
The third cell specifies the transfer priority as below.