Commit 4d9628a1 authored Feb 27, 2015 by Leilei Zhao Committed by Greg Kroah-Hartman Mar 07, 2015

tty/serial: at91: set ops in property init each time

The property in device tree will be reading each time when tty is opened,
so the ops of serial port should be set after that instead of setting once
in probe. Otherwise, the ops of serial port is inconsistent with the state
of serial work manner. For example, the atmel serial driver can't work when
switching to PIO mode due to DMA channel is not available.

Signed-off-by: Leilei Zhao <leilei.zhao@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 4a1e8888

drivers/tty/serial/atmel_serial.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1759,6 +1759,7 @@ static int atmel_startup(struct uart_port *port)
		* Initialize DMA (if necessary)
		*/
		atmel_init_property(atmel_port, pdev);
		atmel_set_ops(port);

		if (atmel_port->prepare_rx) {
		retval = atmel_port->prepare_rx(port);

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