Commit 5dcceabe authored by Gabriel Somlo's avatar Gabriel Somlo Committed by Greg Kroah-Hartman
Browse files

serial: liteuart: separate rx loop from poll timer 



Convert the rx loop into its own dedicated function, and (for now)
call it from the poll timer. This is in preparation for adding irq
support to the receive path.

Signed-off-by: default avatarGabriel Somlo <gsomlo@gmail.com>
Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: default avatarJiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20221123130500.1030189-11-gsomlo@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a774aa45

drivers/tty/serial/liteuart.c

+9 −3
Original line number Diff line number Diff line
@@ -68,10 +68,8 @@ static struct uart_driver liteuart_driver = { 
#endif

};



static void liteuart_timer(struct timer_list *t)

static void liteuart_rx_chars(struct uart_port *port)

{

	struct liteuart_port *uart = from_timer(uart, t, timer);

	struct uart_port *port = &uart->port;

	unsigned char __iomem *membase = port->membase;

	u8 ch;
@@ -88,6 +86,14 @@ static void liteuart_timer(struct timer_list *t) 
	}



	tty_flip_buffer_push(&port->state->port);

}



static void liteuart_timer(struct timer_list *t)

{

	struct liteuart_port *uart = from_timer(uart, t, timer);

	struct uart_port *port = &uart->port;



	liteuart_rx_chars(port);



	mod_timer(&uart->timer, jiffies + uart_poll_timeout(port));

}