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28 lines
1.0 KiB
Diff
28 lines
1.0 KiB
Diff
From d1758273a63b143f48c8856706a1d03f7dcb1b93 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Thu, 26 Feb 2015 09:58:22 +0000
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Subject: [PATCH] pinctrl-bcm2835: Only request the interrupts listed in the
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DTB
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Although the GPIO controller can generate three interrupts (four counting
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the common one), the device tree files currently only specify two. In the
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absence of the third, simply don't register that interrupt (as opposed to
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registering 0), which has the effect of making it impossible to generate
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interrupts for GPIOs 46-53 which, since they share pins with the SD card
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interface, is unlikely to be a problem.
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---
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drivers/pinctrl/bcm/pinctrl-bcm2835.c | 2 ++
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1 file changed, 2 insertions(+)
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--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
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+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
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@@ -1029,6 +1029,8 @@ static int bcm2835_pinctrl_probe(struct
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int len;
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char *name;
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pc->irq[i] = irq_of_parse_and_map(np, i);
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+ if (pc->irq[i] == 0)
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+ break;
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pc->irq_data[i].pc = pc;
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pc->irq_data[i].irqgroup = i;
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