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pinctrl: bcm2835: Accept fewer than expected IRQs

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The downstream .dts files only request two GPIO IRQs. Truncate the
array of parent IRQs when irq_of_parse_and_map returns 0.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210521090158.26932-1-iivanov@suse.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Phil Elwell 2021-05-21 12:01:58 +03:00 committed by Linus Walleij
parent b9045af9fb
commit 4bc80da533
1 changed files with 6 additions and 2 deletions
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8
drivers/pinctrl/bcm/pinctrl-bcm2835.c
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@ -1274,9 +1274,13 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
char *name;
girq->parents[i] = irq_of_parse_and_map(np, i);
if (!is_7211)
if (!is_7211) {
if (!girq->parents[i]) {
girq->num_parents = i;
break;
}
continue;
}
/* Skip over the all banks interrupts */
pc->wake_irq[i] = irq_of_parse_and_map(np, i +
BCM2835_NUM_IRQS + 1);