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authorVladimir Zapolskiy <vz@mleia.com>2016-04-25 04:00:38 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2016-05-11 10:12:11 +0100
commit8cb17b5ed0177d1b613aadd53c7e570b81625728 (patch)
treeb9fd1a3cdcafec5d09ef1c83ed664c73903c5532 /drivers/irqchip/Makefile
parentf86c4fbd930ff6fecf3d8a1c313182bd0f49f496 (diff)
irqchip: Add LPC32xx interrupt controller driver
The change adds improved support of NXP LPC32xx MIC, SIC1 and SIC2 interrupt controllers. This is a list of new features in comparison to the legacy driver: * irq types are taken from device tree settings, no more need to hardcode them, * old driver is based on irq_domain_add_legacy, which causes problems with handling MIC hardware interrupt 0 produced by SIC1, * there is one driver for MIC, SIC1 and SIC2, no more need to handle them separately, e.g. have two separate handlers for SIC1 and SIC2, * the driver does not have any dependencies on hardcoded register offsets, * the driver is much simpler for maintenance, * SPARSE_IRQS option is supported. Legacy LPC32xx interrupt controller driver was broken since commit 76ba59f8366f ("genirq: Add irq_domain-aware core IRQ handler"), which requires a private interrupt handler, otherwise any SIC1 generated interrupt (mapped to MIC hwirq 0) breaks the kernel with the message "unexpected IRQ trap at vector 00". The change disables compilation of a legacy driver found at arch/arm/mach-lpc32xx/irq.c, the file will be removed in a separate commit. Fixes: 76ba59f8366f ("genirq: Add irq_domain-aware core IRQ handler") Tested-by: Sylvain Lemieux <slemieux.tyco@gmail.com> Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip/Makefile')
-rw-r--r--drivers/irqchip/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index 8cedf9060565..f828244b44c2 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -7,6 +7,7 @@ obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2836.o
obj-$(CONFIG_ARCH_EXYNOS) += exynos-combiner.o
obj-$(CONFIG_ARCH_HIP04) += irq-hip04.o
+obj-$(CONFIG_ARCH_LPC32XX) += irq-lpc32xx.o
obj-$(CONFIG_ARCH_MMP) += irq-mmp.o
obj-$(CONFIG_IRQ_MXS) += irq-mxs.o
obj-$(CONFIG_ARCH_TEGRA) += irq-tegra.o