diff options
| author | Alexandre TORGUE <alexandre.torgue@st.com> | 2016-09-15 18:42:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-22 11:48:55 +0200 |
| commit | 3fa047fde43c1a100985751638d0d19b50913ff1 (patch) | |
| tree | c01c8bc67abc3519ec263a0914f97138a7270111 /Documentation/devicetree/bindings/serial | |
| parent | 511c7b1baa8ae86dbcf83b8f489d39ff4b64a123 (diff) | |
dt-bindings: Add DMA bindings for STM32 USART
Signed-off-by: Gerald Baeza <gerald.baeza@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/st,stm32-usart.txt | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt index 75b14004b45a..85ec5f2b1996 100644 --- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt +++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt @@ -12,6 +12,8 @@ stm32(f4) or stm32f7. Optional properties: - pinctrl: The reference on the pins configuration - st,hw-flow-ctrl: bool flag to enable hardware flow control. +- dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt +- dma-names: "rx" and/or "tx" Examples: usart4: serial@40004c00 { @@ -32,3 +34,13 @@ usart2: serial@40004400 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart2 &pinctrl_usart2_rtscts>; }; + +usart1: serial@40011000 { + compatible = "st,stm32-usart", "st,stm32-uart"; + reg = <0x40011000 0x400>; + interrupts = <37>; + clocks = <&rcc 0 164>; + dmas = <&dma2 2 4 0x414 0x0>, + <&dma2 7 4 0x414 0x0>; + dma-names = "rx", "tx"; +}; |