From a8e7346b7c0a3b33963e5e043e2c612fdf69de34 Mon Sep 17 00:00:00 2001 From: Raviteja Narayanam Date: Thu, 9 Apr 2020 11:56:03 +0530 Subject: [PATCH] serial: uartps: Use cdns_uart_tx_empty in console_write Instead of accessing the registers and checking for tx_empty, use cdns_uart_tx_empty in cdns_uart_console_write function. Signed-off-by: Raviteja Narayanam Reviewed-by: Shubhrajyoti Datta Link: https://lore.kernel.org/r/1586413563-29125-3-git-send-email-raviteja.narayanam@xilinx.com Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/xilinx_uartps.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 0bf946b0b1986..042aa6f1c9c4e 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -1233,9 +1233,7 @@ static void cdns_uart_console_write(struct console *co, const char *s, writel(ctrl, port->membase + CDNS_UART_CR); uart_console_write(port, s, count, cdns_uart_console_putchar); - while ((readl(port->membase + CDNS_UART_SR) & - (CDNS_UART_SR_TXEMPTY | CDNS_UART_SR_TACTIVE)) != - CDNS_UART_SR_TXEMPTY) + while (cdns_uart_tx_empty(port) != TIOCSER_TEMT) cpu_relax(); /* restore interrupt state */ -- 2.30.2