On Fri, Nov 20, 2015 at 05:17:21PM -0700, Joshua Henderson wrote: > From: Andrei Pistirica <andrei.pistirica@xxxxxxxxxxxxx> > > Document the devicetree bindings for the USART peripheral found on > Microchip PIC32 class devices. > > Signed-off-by: Andrei Pistirica <andrei.pistirica@xxxxxxxxxxxxx> > Signed-off-by: Joshua Henderson <joshua.henderson@xxxxxxxxxxxxx> > --- > .../bindings/serial/microchip,pic32-usart.txt | 29 ++++++++++++++++++++ > 1 file changed, 29 insertions(+) > create mode 100644 Documentation/devicetree/bindings/serial/microchip,pic32-usart.txt > > diff --git a/Documentation/devicetree/bindings/serial/microchip,pic32-usart.txt b/Documentation/devicetree/bindings/serial/microchip,pic32-usart.txt > new file mode 100644 > index 0000000..c87321c > --- /dev/null > +++ b/Documentation/devicetree/bindings/serial/microchip,pic32-usart.txt > @@ -0,0 +1,29 @@ > +* Microchip Universal Synchronous Asynchronous Receiver/Transmitter (USART) > + > +Required properties: > +- compatible: Should be "microchip,pic32-usart" Again, should be more specific. > +- reg: Should contain registers location and length > +- interrupts: Should contain interrupt > +- pinctrl: Should contain pinctrl for TX/RX/RTS/CTS > + > +Optional properties: > +- microchip,uart-has-rtscts : Indicate the uart has hardware flow control > +- rts-gpios: RTS pin for USP-based UART if microchip,uart-has-rtscts > +- cts-gpios: CTS pin for USP-based UART if microchip,uart-has-rtscts This appears to just be copied for Sirf UART. Doesn't *-gpios being present imply having h/w flow-control (i.e. microchip,uart-has-rtscts)? Rob > + > +Example: > + usart0: serial@1f822000 { > + compatible = "microchip,pic32-usart"; > + reg = <0x1f822000 0x50>; > + interrupts = <UART1_FAULT DEFAULT_INT_PRI IRQ_TYPE_NONE>, > + <UART1_RECEIVE_DONE DEFAULT_INT_PRI IRQ_TYPE_NONE>, > + <UART1_TRANSFER_DONE DEFAULT_INT_PRI IRQ_TYPE_NONE>; > + pinctrl-names = "default"; > + pinctrl-0 = < > + &pinctrl_uart1 > + &pinctrl_uart1_cts > + &pinctrl_uart1_rts>; > + microchip,uart-has-rtscts; > + cts-gpios = <&pioB 15 0>; > + rts-gpios = <&pioD 1 0>; > + }; > -- > 1.7.9.5 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html