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Commit 18090bff authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "serial: msm_geni_serial: Disable Flow only for HSUART usecase"

parents c5d7f4ea 3cfaa553

drivers/tty/serial/msm_geni_serial.c

+6 −4
Original line number Diff line number Diff line
@@ -2006,13 +2006,13 @@ static void msm_geni_serial_set_termios(struct uart_port *uport, 
							__func__, ret);

			return;

		}

		disable_irq(uport->irq);

		msm_geni_serial_set_manual_flow(false, port);

	}

	/* Take a spinlock else stop_rx causes a race with an ISR due to Cancel

	 * and FSM_RESET. This also has a potential race with the dma_map/unmap

	 * operations of ISR.

	 */

	disable_irq(uport->irq);

	msm_geni_serial_set_manual_flow(false, port);

	spin_lock_irqsave(&uport->lock, flags);

	msm_geni_serial_stop_rx(uport);

	spin_unlock_irqrestore(&uport->lock, flags);
@@ -2116,8 +2116,10 @@ static void msm_geni_serial_set_termios(struct uart_port *uport, 
	IPC_LOG_MSG(port->ipc_log_misc, "BitsChar%d stop bit%d\n",

				bits_per_char, stop_bit_len);

exit_set_termios:

	if (!uart_console(uport)) {

		msm_geni_serial_set_manual_flow(true, port);

		enable_irq(uport->irq);

	}

	msm_geni_serial_start_rx(uport);

	if (!uart_console(uport))

		msm_geni_serial_power_off(uport);