Message ID | 1498481318-1894-3-git-send-email-bich.hemon@st.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
On Mon, Jun 26, 2017 at 12:49:09PM +0000, Bich HEMON wrote: > From: Bich Hemon <bich.hemon@st.com> > > Each usart controller should have an alias correctly > numbered in "aliases" node. This is board specific typically and doesn't need to be in the binding doc. Rob
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt index 85ec5f2..a229b14 100644 --- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt +++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt @@ -15,14 +15,23 @@ Optional properties: - dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt - dma-names: "rx" and/or "tx" +Note: Each usart controller should have an alias correctly numbered +in "aliases" node. + Examples: -usart4: serial@40004c00 { +aliases { + serial0 = &usart1; + serial1 = &usart2; + serial3 = &uart4; +}; + +uart4: serial@40004c00 { compatible = "st,stm32-uart"; reg = <0x40004c00 0x400>; interrupts = <52>; clocks = <&clk_pclk1>; pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_usart4>; + pinctrl-0 = <&pinctrl_uart4>; }; usart2: serial@40004400 {