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authorJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
committerJiri Kosina <jkosina@suse.cz>2013-01-29 10:48:30 +0100
commit617677295b53a40d0e54aac4cbbc216ffbc755dd (patch)
tree51b9e87213243ed5efff252c8e8d8fec4eebc588 /Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt
parent5c8d1b68e01a144813e38795fe6dbe7ebb506131 (diff)
parent6abb7c25775b7fb2225ad0508236d63ca710e65f (diff)
downloadblackbird-obmc-linux-617677295b53a40d0e54aac4cbbc216ffbc755dd.tar.gz
blackbird-obmc-linux-617677295b53a40d0e54aac4cbbc216ffbc755dd.zip
Merge branch 'master' into for-next
Conflicts: drivers/devfreq/exynos4_bus.c Sync with Linus' tree to be able to apply patches that are against newer code (mvneta).
Diffstat (limited to 'Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt')
-rw-r--r--Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt8
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diff --git a/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt b/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt
index 2ee903fad25c..273a8d5b3300 100644
--- a/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt
+++ b/Documentation/devicetree/bindings/tty/serial/fsl-mxs-auart.txt
@@ -6,11 +6,19 @@ Required properties:
- reg : Address and length of the register set for the device
- interrupts : Should contain the auart interrupt numbers
+Optional properties:
+- fsl,auart-dma-channel : The DMA channels, the first is for RX, the other
+ is for TX. If you add this property, it also means that you
+ will enable the DMA support for the auart.
+ Note: due to the hardware bug in imx23(see errata : 2836),
+ only the imx28 can enable the DMA support for the auart.
+
Example:
auart0: serial@8006a000 {
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
reg = <0x8006a000 0x2000>;
interrupts = <112 70 71>;
+ fsl,auart-dma-channel = <8 9>;
};
Note: Each auart port should have an alias correctly numbered in "aliases"
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