Commit 34b6a3a9 authored Jun 04, 2018 by Helmut Grohne Committed by Greg Kroah-Hartman Jun 28, 2018

serial: xuartps: remove unnecessary register write

This writel writes the exact same value as the previous writel and is
thus unnecessary. It accidentally became unnecessary in e3538c37
("tty: xuartps: Beautify read-modify writes"), but the new behaviour is
now expected.

Link: https://www.spinics.net/lists/linux-serial/msg23168.html


Signed-off-by: Helmut Grohne <h.grohne@intenta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent de4ed391

drivers/tty/serial/xilinx_uartps.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -1203,8 +1203,6 @@ static void cdns_uart_console_write(struct console co, const char s,
		CDNS_UART_SR_TXEMPTY)
		cpu_relax();

		writel(ctrl, port->membase + CDNS_UART_CR);

		/* restore interrupt state */
		writel(imr, port->membase + CDNS_UART_IER);