Commit c58caaab authored Jul 13, 2018 by Alexander Sverdlin Committed by Greg Kroah-Hartman Jul 16, 2018

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: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent b29330d8

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

+4 −0

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

		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);
		if (IS_ERR(info->rst)) {