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-rw-r--r--Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt13
1 files changed, 12 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
index 9d8bbac27d8b..ebbf7cfb1241 100644
--- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
+++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt
@@ -9,6 +9,8 @@ Required properties:
"fsl,imx53-sdma"
"fsl,imx6q-sdma"
"fsl,imx7d-sdma"
+ "fsl,imx6sx-sdma"
+ "fsl,imx6ul-sdma"
"fsl,imx8mq-sdma"
The -to variants should be preferred since they allow to determine the
correct ROM script addresses needed for the driver to work without additional
@@ -51,8 +53,14 @@ The full ID of peripheral types can be found below.
22 SSI Dual FIFO (needs firmware ver >= 2)
23 Shared ASRC
24 SAI
+ 25 HDMI Audio
-The third cell specifies the transfer priority as below.
+The third cell specifies the transfer priority and software done
+as below.
+
+ Bit31: sw_done
+ Bit15~Bit8: selector
+ Bit7~Bit0: priority level
ID transfer priority
-------------------------
@@ -60,6 +68,9 @@ The third cell specifies the transfer priority as below.
1 Medium
2 Low
+For example: 0x80000000 means sw_done enabled for done0 sector and
+ High priority for PDM on i.mx8mm.
+
Optional properties:
- gpr : The phandle to the General Purpose Register (GPR) node.