Commit c58caaab authored by Alexander Sverdlin's avatar Alexander Sverdlin Committed by Greg Kroah-Hartman
Browse files

serial: 8250: of: Defer probe on missing IRQ 



If the IRQ controller is not yet probed do not proceed with irq=0,
try to defer the probe.

Signed-off-by: default avatarAlexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b29330d8

drivers/tty/serial/8250/8250_of.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -144,6 +144,10 @@ static int of_platform_serial_setup(struct platform_device *ofdev, 
		port->line = ret;

		port->line = ret;





	port->irq = irq_of_parse_and_map(np, 0);

	port->irq = irq_of_parse_and_map(np, 0);

	if (!port->irq) {

		ret = -EPROBE_DEFER;

		goto err_unprepare;

	}





	info->rst = devm_reset_control_get_optional_shared(&ofdev->dev, NULL);

	info->rst = devm_reset_control_get_optional_shared(&ofdev->dev, NULL);

	if (IS_ERR(info->rst)) {

	if (IS_ERR(info->rst)) {

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