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Commit 00dab818 authored by Sam Mendoza-Jonas's avatar Sam Mendoza-Jonas Committed by Michael Ellerman
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tty/hvc: Use opal irqchip interface if available 



Update the hvc driver to use the OPAL irqchip if made available by the
running firmware. If it is not present, the driver falls back to the
existing OPAL event number.

Signed-off-by: default avatarSamuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent bbc3dfe8

drivers/tty/hvc/hvc_opal.c

+7 −1
Original line number Diff line number Diff line
@@ -214,7 +214,13 @@ static int hvc_opal_probe(struct platform_device *dev) 
		dev->dev.of_node->full_name,

		boot ? " (boot console)" : "");



	irq = irq_of_parse_and_map(dev->dev.of_node, 0);

	if (!irq) {

		pr_info("hvc%d: No interrupts property, using OPAL event\n",

				termno);

		irq = opal_event_request(ilog2(OPAL_EVENT_CONSOLE_INPUT));

	}



	if (!irq) {

		pr_err("hvc_opal: Unable to map interrupt for device %s\n",

			dev->dev.of_node->full_name);