From c8aa040735dccf98d20506578874a9c8fa0a87f4 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 26 Feb 2015 09:58:22 +0000 Subject: [PATCH 059/203] pinctrl-bcm2835: Only request the interrupts listed in the DTB Although the GPIO controller can generate three interrupts (four counting the common one), the device tree files currently only specify two. In the absence of the third, simply don't register that interrupt (as opposed to registering 0), which has the effect of making it impossible to generate interrupts for GPIOs 46-53 which, since they share pins with the SD card interface, is unlikely to be a problem. --- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -1044,6 +1044,8 @@ static int bcm2835_pinctrl_probe(struct int len; char *name; pc->irq[i] = irq_of_parse_and_map(np, i); + if (pc->irq[i] == 0) + break; pc->irq_data[i].pc = pc; pc->irq_data[i].irqgroup = i;