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authorTony Lindgren <tony@atomide.com>2017-11-28 19:12:32 +0300
committerTony Lindgren <tony@atomide.com>2017-11-28 19:12:32 +0300
commitbc686442f8a601bccac1f22506ecdb4b0d62cadd (patch)
treeb224ab4aa2350b233da640f5850f48bc6bfeb2d0 /Documentation/devicetree/bindings/dma/stm32-dma.txt
parent60636a5d0fa2f8bc6d0c23c4027100ba20866f9b (diff)
parentca41e244517d6d3f1600c229ff7ca615049c1e9c (diff)
downloadlinux-bc686442f8a601bccac1f22506ecdb4b0d62cadd.tar.xz
Merge branch 'dts-fixes' into omap-for-v4.15/fixes-dt
Diffstat (limited to 'Documentation/devicetree/bindings/dma/stm32-dma.txt')
-rw-r--r--Documentation/devicetree/bindings/dma/stm32-dma.txt6
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt
index 4408af693d0c..0b55718bf889 100644
--- a/Documentation/devicetree/bindings/dma/stm32-dma.txt
+++ b/Documentation/devicetree/bindings/dma/stm32-dma.txt
@@ -13,6 +13,7 @@ Required properties:
- #dma-cells : Must be <4>. See DMA client paragraph for more details.
Optional properties:
+- dma-requests : Number of DMA requests supported.
- resets: Reference to a reset controller asserting the DMA controller
- st,mem2mem: boolean; if defined, it indicates that the controller supports
memory-to-memory transfer
@@ -34,12 +35,13 @@ Example:
#dma-cells = <4>;
st,mem2mem;
resets = <&rcc 150>;
+ dma-requests = <8>;
};
* DMA client
DMA clients connected to the STM32 DMA controller must use the format
-described in the dma.txt file, using a five-cell specifier for each
+described in the dma.txt file, using a four-cell specifier for each
channel: a phandle to the DMA controller plus the following four integer cells:
1. The channel id
@@ -71,7 +73,7 @@ channel: a phandle to the DMA controller plus the following four integer cells:
Example:
usart1: serial@40011000 {
- compatible = "st,stm32-usart", "st,stm32-uart";
+ compatible = "st,stm32-uart";
reg = <0x40011000 0x400>;
interrupts = <37>;
clocks = <&clk_pclk2>;