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author | Tony Lindgren <tony@atomide.com> | 2017-11-28 19:12:32 +0300 |
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committer | Tony Lindgren <tony@atomide.com> | 2017-11-28 19:12:32 +0300 |
commit | bc686442f8a601bccac1f22506ecdb4b0d62cadd (patch) | |
tree | b224ab4aa2350b233da640f5850f48bc6bfeb2d0 /Documentation/devicetree/bindings/dma/stm32-dma.txt | |
parent | 60636a5d0fa2f8bc6d0c23c4027100ba20866f9b (diff) | |
parent | ca41e244517d6d3f1600c229ff7ca615049c1e9c (diff) | |
download | linux-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.txt | 6 |
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>; |