dt-bindings: serial: Remove obsolete nxp,lpc1850-uart.txt

nxp,lpc1850-uart.txt binding is already covered by 8250.yaml, so remove
it.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230707221607.1064888-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt b/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt
deleted file mode 100644 (file)
index 04e23e6..0000000
--- a/Documentation/devicetree/bindings/serial/nxp,lpc1850-uart.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-* NXP LPC1850 UART
-
-Required properties:
-- compatible   : "nxp,lpc1850-uart", "ns16550a".
-- reg          : offset and length of the register set for the device.
-- interrupts   : should contain uart interrupt.
-- clocks       : phandle to the input clocks.
-- clock-names  : required elements: "uartclk", "reg".
-
-Optional properties:
-- dmas         : Two or more DMA channel specifiers following the
-                 convention outlined in bindings/dma/dma.txt
-- dma-names    : Names for the dma channels, if present. There must
-                 be at least one channel named "tx" for transmit
-                 and named "rx" for receive.
-
-Since it's also possible to also use the of_serial.c driver all
-parameters from 8250.txt also apply but are optional.
-
-Example:
-uart0: serial@40081000 {
-       compatible = "nxp,lpc1850-uart", "ns16550a";
-       reg = <0x40081000 0x1000>;
-       reg-shift = <2>;
-       interrupts = <24>;
-       clocks = <&ccu2 CLK_APB0_UART0>, <&ccu1 CLK_CPU_UART0>;
-       clock-names = "uartclk", "reg";
-};