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56af0416b0
linux/drivers/irqchip
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Hans de Goede 56af0416b0 irqchip: sun4i: Fix irq 0 not working 
SUN4I_IRQ_VECTOR_REG containing 0 can mean one of 3 things:

1) no more irqs pending
2) irq 0 pending
3) spurious irq

So if we immediately get a reading of 0, check the irq-pending reg
to differentiate between 2 and 3. We only do this once to avoid
the extra check in the common case of 1) hapening after having
read the vector-reg once.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-sunxi@googlegroups.com
Link: http://lkml.kernel.org/r/1394733834-26839-3-git-send-email-hdegoede@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-03-14 13:43:33 +01:00
..
exynos-combiner.c irqchip: exynos-combiner: remove hard-coded irq_base value 2013-12-02 07:15:51 +09:00
irq-armada-370-xp.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-bcm2835.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-dw-apb-ictl.c irqchip: add DesignWare APB ICTL interrupt controller 2013-12-13 16:29:40 +01:00
irq-gic.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-imgpdc.c irq-imgpdc: add ImgTec PDC irqchip driver 2013-08-21 14:17:56 +01:00
irq-metag-ext.c irq-metag*: stop set_affinity vectoring to offline cpus 2014-02-25 22:35:06 +00:00
irq-metag.c irq-metag*: stop set_affinity vectoring to offline cpus 2014-02-25 22:35:06 +00:00
irq-mmp.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-moxart.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-mxs.c ARM: mxs: icoll: Fix interrupts gpio bank 0 2013-06-03 23:18:15 +08:00
irq-nvic.c irqchip: nvic: Fix wrong num_ct argument for irq_alloc_domain_generic_chips() 2013-07-05 11:39:24 +02:00
irq-orion.c Merge branch 'irq/for-gpio' into irq/core 2014-03-12 16:01:07 +01:00
irq-renesas-intc-irqpin.c irqchip: renesas-intc-irqpin: Fix register bitfield shift calculation 2013-11-24 15:55:17 +09:00
irq-renesas-irqc.c irqchip: renesas-irqc: Enable mask on suspend 2014-01-22 21:48:55 +01:00
irq-s3c24xx.c ARM: arm-soc driver changes for 3.10 2013-05-04 12:31:18 -07:00
irq-sirfsoc.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-sun4i.c irqchip: sun4i: Fix irq 0 not working 2014-03-14 13:43:33 +01:00
irq-tb10x.c irqchip: Add TB10x interrupt controller driver 2013-06-25 18:54:21 +02:00
irq-versatile-fpga.c irqchip: versatile FPGA: support cascaded interrupts from DT 2014-01-03 22:26:13 +01:00
irq-vic.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-vt8500.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irq-xtensa-mx.c irqchip: xtensa: Select only an online cpu 2014-03-04 17:37:55 +01:00
irq-xtensa-pic.c xtensa: move built-in PIC to drivers/irqchip 2014-01-14 10:19:56 -08:00
irq-zevio.c irqchip: Remove asmlinkage from static functions 2014-03-12 13:00:41 +01:00
irqchip.c irqchip: Remove unused include 2014-03-12 13:12:04 +01:00
irqchip.h irqchip: add basic infrastructure 2013-01-10 11:44:38 -06:00
Kconfig Xtensa patchset for 3.14-rc1 2014-01-25 10:49:30 -08:00
Makefile Revert irqchip: irq-dove: Add PMU interrupt controller 2014-03-04 11:10:17 +01:00
spear-shirq.c ARM: spear: use common irqchip_init function 2013-01-12 10:52:15 -06:00