From 34b6a3a91f87851bc0ea9e6776266f23d8acf388 Mon Sep 17 00:00:00 2001 From: Helmut Grohne Date: Mon, 4 Jun 2018 12:22:19 +0200 Subject: [PATCH] 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 e3538c37ee38 ("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 Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/xilinx_uartps.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 5f040cee595c..a48f19b1b88f 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -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); -- 2.30.2