serial: stm32-usart: Avoid using irq_wake flag

There is no need to duplicate a flag which IRQ core takes care of.

Replace custom flag by IRQ core API that retrieves its state.

Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index b16e7e7..03a5832 100644 (file)
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -113,7 +113,7 @@ static void stm32_receive_chars(struct uart_port *port, bool threaded)
        u32 sr;
        char flag;
 
-       if (port->irq_wake)
+       if (irqd_is_wakeup_set(irq_get_irq_data(port->irq)))
                pm_wakeup_event(tport->tty->dev, 0);
 
        while (stm32_pending_rx(port, &sr, &stm32_port->last_res, threaded)) {