serial: 8250: 8250_omap: Fix throttle to call stop_rx() (f4b042a0) · Commits · 戴 / test

Call stop_rx() to halt reception when throttle is requested. Update unthrottle callback to restart reception. Signed-off-by:

drivers/tty/serial/8250/8250_omap.c

+2 −3

Original line number	Diff line number	Diff line
		@@ -699,14 +699,12 @@ static void omap_8250_shutdown(struct uart_port *port)
		static void omap_8250_throttle(struct uart_port *port)
		{
		struct omap8250_priv *priv = port->private_data;
		struct uart_8250_port *up = up_to_u8250p(port);
		unsigned long flags;

		pm_runtime_get_sync(port->dev);

		spin_lock_irqsave(&port->lock, flags);
		up->ier &= ~(UART_IER_RLSI \| UART_IER_RDI);
		serial_out(up, UART_IER, up->ier);
		port->ops->stop_rx(port);
		priv->throttled = true;
		spin_unlock_irqrestore(&port->lock, flags);

		@@ -727,6 +725,7 @@ static void omap_8250_unthrottle(struct uart_port *port)
		if (up->dma)
		up->dma->rx_dma(up);
		up->ier \|= UART_IER_RLSI \| UART_IER_RDI;
		port->read_status_mask \|= UART_LSR_DR;
		serial_out(up, UART_IER, up->ier);
		spin_unlock_irqrestore(&port->lock, flags);