Commit 81dfdd39 authored by Andrei Pistirica's avatar Andrei Pistirica Committed by Ralf Baechle

dt/bindings: Add bindings for PIC32 UART driver

Document the devicetree bindings for the UART peripheral found on
Microchip PIC32 class devices.
Signed-off-by: default avatarAndrei Pistirica <andrei.pistirica@microchip.com>
Signed-off-by: default avatarJoshua Henderson <joshua.henderson@microchip.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12100/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 0c94fa33
* Microchip Universal Asynchronous Receiver Transmitter (UART)
Required properties:
- compatible: Should be "microchip,pic32mzda-uart"
- reg: Should contain registers location and length
- interrupts: Should contain interrupt
- clocks: Phandle to the clock.
See: Documentation/devicetree/bindings/clock/clock-bindings.txt
- pinctrl-names: A pinctrl state names "default" must be defined.
- pinctrl-0: Phandle referencing pin configuration of the UART peripheral.
See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
Optional properties:
- cts-gpios: CTS pin for UART
Example:
uart1: serial@1f822000 {
compatible = "microchip,pic32mzda-uart";
reg = <0x1f822000 0x50>;
interrupts = <112 IRQ_TYPE_LEVEL_HIGH>,
<113 IRQ_TYPE_LEVEL_HIGH>,
<114 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&PBCLK2>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1
&pinctrl_uart1_cts
&pinctrl_uart1_rts>;
cts-gpios = <&gpio1 15 0>;
};
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