Commit 7bf0d5e8 authored Jun 06, 2016 by Hauke Mehrtens Committed by Ralf Baechle Jul 24, 2016

MIPS: Lantiq: Register IRQ handler for virtual IRQ number



We used the hardware IRQ number to register the IRQ handler and not the
virtual one. This probably caused some problems because the hardware
IRQ numbers are only unique for each IRQ controller and not in the
system. The virtual IRQ number is managed by Linux and unique in the
system. This was probably the reason there was a gab of 8 IRQ numbers added
before the numbers used for the lantiq IRQ controller. With the current
setup the hardware and the virtual IRQ numbers are the same.

Reported-by: Thomas Langer <thomas.langer@intel.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: John Crispin <john@phrozen.org>
Cc: thomas.langer@intel.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13539/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent f0bbe4dc

arch/mips/lantiq/irq.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -344,7 +344,7 @@ static int icu_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
		if (hw == ltq_eiu_irq[i])
		chip = &ltq_eiu_type;

		irq_set_chip_and_handler(hw, chip, handle_level_irq);
		irq_set_chip_and_handler(irq, chip, handle_level_irq);

		return 0;
		}

Admin message