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path: root/drivers/irqchip/irq-sunxi-nmi.c (follow)
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* genirq: Remove irq argument from irq flow handlersThomas Gleixner2015-09-161-1/+1
| | | | | | | | | | | | | | Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
* irqchip: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu2015-07-111-1/+1
| | | | | | | | | | | | | | | | | | | | | Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Kukjin Kim <kgene@kernel.org> Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Link: http://lkml.kernel.org/r/1433391238-19471-11-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* irqchip/sunxi-nmi: Consolidate chained IRQ handler install/removeThomas Gleixner2015-07-111-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Chained irq handlers usually set up handler data as well. We now have a function to set both under irq_desc->lock. Replace the two calls with one. Search and conversion was done with coccinelle: @@ expression E1, E2, E3; @@ ( -if (irq_set_handler_data(E1, E2) != 0) - BUG(); | -irq_set_handler_data(E1, E2); ) -irq_set_chained_handler(E1, E3); +irq_set_chained_handler_and_data(E1, E3, E2); @@ expression E1, E2, E3; @@ ( -if (irq_set_handler_data(E1, E2) != 0) - BUG(); ... | -irq_set_handler_data(E1, E2); ... ) -irq_set_chained_handler(E1, E3); +irq_set_chained_handler_and_data(E1, E3, E2); Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: linux-arm-kernel@lists.infradead.org
* irqchip: Prepare for local stub header removalJoel Porquet2015-07-111-1/+1
| | | | | | | | | | | | | | | | | The IRQCHIP_DECLARE macro moved to to 'include/linux/irqchip.h', so the local irqchip.h became an empty shell, which solely includes include/linux/irqchip.h Include the global header in all irqchip drivers instead of the local header, so we can remove it. Signed-off-by: Joel Porquet <joel@porquet.org> Cc: vgupta@synopsys.com Cc: monstr@monstr.eu Cc: ralf@linux-mips.org Cc: jason@lakedaemon.net Link: http://lkml.kernel.org/r/1882096.X39jVG8e0D@joel-zenbook Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* irqchip: sunxi-nmi: Fix off-by-one error in irq iteratorAxel Lin2015-06-081-1/+1
| | | | | | | | | | | Fixes: 6058bb362818 'ARM: sun7i/sun6i: irqchip: Add irqchip driver for NMI controller' Signed-off-by: Axel Lin <axel.lin@ingics.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Carlo Caione <carlo@caione.org> Cc: Jason Cooper <jason@lakedaemon.net> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1433684009.9134.1.camel@ingics.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* genirq: Generic chip: Change irq_reg_{readl,writel} argumentsKevin Cernekee2014-11-091-2/+2
| | | | | | | | | | | | | | | | | | | | | Pass in the irq_chip_generic struct so we can use different readl/writel settings for each irqchip driver, when appropriate. Compute (gc->reg_base + reg_offset) in the helper function because this is pretty much what all callers want to do anyway. Compile-tested using the following configurations: at91_dt_defconfig (CONFIG_ATMEL_AIC_IRQ=y) sama5_defconfig (CONFIG_ATMEL_AIC5_IRQ=y) sunxi_defconfig (CONFIG_ARCH_SUNXI=y) tb10x (ARC) is untested. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lkml.kernel.org/r/1415342669-30640-3-git-send-email-cernekee@gmail.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
* irqchip: sun7i/sun6i: Disable NMI before registering the handlerHans de Goede2014-03-311-3/+3
| | | | | | | | | | | | | | | | It is advisable to disable the NMI before registering the IRQ handler as registering the IRQ handler unmasks the IRQ on the GIC, so if U-Boot has left the NMI enabled and the NMI pin is active we will immediately get an interrupt before any driver has claimed the downstream interrupt of the NMI. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Carlo Caione <carlo@caione.org> Cc: maxime.ripard@free-electrons.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@googlegroups.com Link: http://lkml.kernel.org/r/1395939759-11135-3-git-send-email-carlo@caione.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* ARM: sun7i/sun6i: irqchip: Add irqchip driver for NMI controllerCarlo Caione2014-03-261-0/+208
Allwinner A20/A31 SoCs have special registers to control / (un)mask / acknowledge NMI. This NMI controller is separated and independent from GIC. This patch adds a new irqchip to manage NMI. Signed-off-by: Carlo Caione <carlo@caione.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@googlegroups.com Cc: mark.rutland@arm.com Cc: hdegoede@redhat.com Link: http://lkml.kernel.org/r/1395256879-8475-2-git-send-email-carlo@caione.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>