[PATCH 3/6] serial: meson: remove unneeded variable assignment in meson_serial_port_write

[Ben Dooks]

On 16/04/17 21:13, Heiner Kallweit wrote:
> AML_UART_TX_EN is set in meson_uart_startup and there's no place in
> the driver where it gets cleared. Therefore we don't have to set it
> here.

I think this is a leftover of the patches I did when trying to fix
the UART driver when using debian/systemd and having strange console
problems.

The only comment is it might be worth leaving this in as it isn't
a high cost to the driver and it is possible someone might accidentally
clear it later.

> Signed-off-by: Heiner Kallweit <hkallweit1 at gmail.com>
> ---
>  drivers/tty/serial/meson_uart.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
> index 22857f1e..714b29ad 100644
> --- a/drivers/tty/serial/meson_uart.c
> +++ b/drivers/tty/serial/meson_uart.c
> @@ -497,7 +497,6 @@ static void meson_serial_port_write(struct uart_port *port, const char *s,
>  	}
>
>  	val = readl(port->membase + AML_UART_CONTROL);
> -	val |= AML_UART_TX_EN;
>  	tmp = val & ~(AML_UART_TX_INT_EN | AML_UART_RX_INT_EN);
>  	writel(tmp, port->membase + AML_UART_CONTROL);
>
>


-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius