Commit f1f5c140 authored by Ben Dooks's avatar Ben Dooks Committed by Greg Kroah-Hartman

ARM: meson: serial: use meson_uart_tx_empty() to wait for empty

Use the meson_uart_tx_empty() instead of a direct read of the status
register. This is easier to read and will ensure the UART's transmit
state machine is idle when trying to update the baud rate.
Signed-off-by: default avatarBen Dooks <ben.dooks@codethink.co.uk>
Tested-by: default avatarCarlo Caione <carlo@endlessm.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 855ddcab
......@@ -285,7 +285,7 @@ static void meson_uart_change_speed(struct uart_port *port, unsigned long baud)
{
u32 val;
while (!(readl(port->membase + AML_UART_STATUS) & AML_UART_TX_EMPTY))
while (!meson_uart_tx_empty(port))
cpu_relax();
val = readl(port->membase + AML_UART_REG5);
......
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