Commit fe9ed6d2 authored Feb 24, 2019 by Lubomir Rintel Committed by Greg Kroah-Hartman Feb 26, 2019

serial: 8250_pxa: honor the port number from devicetree



Like the other OF-enabled drivers, use the port number from the firmware if
the devicetree specifies an alias:

  aliases {
      ...
      serial2 = &uart2; /* Should be ttyS2 */
  }

This is how the deprecated pxa.c driver behaved, switching to 8250_pxa
messes up the numbering.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent d56f00fd

drivers/tty/serial/8250/8250_pxa.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -113,6 +113,10 @@ static int serial_pxa_probe(struct platform_device *pdev)
		if (ret)
		return ret;

		ret = of_alias_get_id(pdev->dev.of_node, "serial");
		if (ret >= 0)
		uart.port.line = ret;

		uart.port.type = PORT_XSCALE;
		uart.port.iotype = UPIO_MEM32;
		uart.port.mapbase = mmres->start;

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