[PATCH 07/11] dt-bindings: Add DMA bindings for STM32 USART
From: robh@kernel.org (Rob Herring)
Date: 2016-09-23 15:30:43
Also in:
linux-devicetree, linux-serial
Possibly related (same subject, not in this thread)
- 2016-09-15 · [PATCH 07/11] dt-bindings: Add DMA bindings for STM32 USART · Alexandre TORGUE <hidden>
On Thu, Sep 15, 2016 at 06:42:39PM +0200, Alexandre TORGUE wrote:
Signed-off-by: Gerald Baeza <redacted> Signed-off-by: Alexandre TORGUE <redacted>
Squash this with the other binding patch. You are describing the h/w block, do so completely.
quoted hunk
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt index 75b1400..85ec5f2 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 at 40004c00 {@@ -32,3 +34,13 @@ usart2: serial at 40004400 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usart2 &pinctrl_usart2_rtscts>; }; + +usart1: serial at 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"; +};-- 1.9.1