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path: root/drivers/irqchip/irq-mtk-sysirq.c (follow)
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2017-04-07irqchip/mtk-sysirq: Remove unnecessary barrier when configuring triggerMars Cheng1-1/+1
This prevent unnecessary visibility when configuring trigger type Signed-off-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-04-07irqchip/mtk-sysirq: Extend intpol base to arbitrary numberMars Cheng1-21/+95
Originally driver only supports one base. However, MT6797 has more than one bases to configure interrupt polarity. To support possible design change, here comes a solution to use arbitrary number of bases. Signed-off-by: Mars Cheng <mars.cheng@mediatek.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-10-13irqchip: Convert all alloc/xlate users from of_node to fwnodeMarc Zyngier1-23/+26
Since we now have a generic data structure to express an interrupt specifier, convert all hierarchical irqchips that are OF based to use a fwnode_handle as part of their alloc and xlate (which becomes translate) callbacks. As most of these drivers have dependencies (they exchange IRQ specifiers), change them all in a single, massive patch... Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@linaro.org> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Graeme Gregory <graeme@xora.org.uk> Cc: Jake Oshins <jakeo@microsoft.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1444737105-31573-6-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-10-13irqdomain: Use irq_domain_get_of_node() instead of direct field accessMarc Zyngier1-1/+1
The struct irq_domain contains a "struct device_node *" field (of_node) that is almost the only link between the irqdomain and the device tree infrastructure. In order to prepare for the removal of that field, convert all users to use irq_domain_get_of_node() instead. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@linaro.org> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Graeme Gregory <graeme@xora.org.uk> Cc: Jake Oshins <jakeo@microsoft.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1444737105-31573-2-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-11irqchip: Prepare for local stub header removalJoel Porquet1-2/+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>
2015-05-22irqchip: mtk-sysirq: Make mtk_sysirq_of_init return error if ioremap failsAxel Lin1-1/+1
PTR_ERR(NULL) returns 0 so current code returns 0 if ioremap fails, fix it. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Cc: Yingjoe Chen <yingjoe.chen@mediatek.com> Cc: linux-mediatek@lists.infradead.org <linux-mediatek@lists.infradead.org> Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1432220254.29544.1.camel@ingics.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-05-05irqchip: Constify irq_domain_opsKrzysztof Kozlowski1-1/+1
The irq_domain_ops are not modified by the driver and the irqdomain core code accepts pointer to a const data. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Kukjin Kim <kgene@kernel.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Lee Jones <lee@kernel.org> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rpi-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Link: http://lkml.kernel.org/r/1430139264-4362-2-git-send-email-k.kozlowski.k@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-01-26irqchip: mtk-sysirq: Get irq number from register resource sizeYingjoe Chen1-7/+11
Originally mtk-sysirq hardcoded supported irq number to 224. This was fine since all SoCs before support the same number of irqs for intpol. However MT8173 intpol support 32 more irq pins, changes to get irq number from register resource size to suppor MT8173 properly. Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Signed-off-by: Eddie Huang <eddie.huang@mediatek.com> Cc: <srv_heupstream@mediatek.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Olof Johansson <olof@lixom.net> Cc: Robert Richter <rrichter@cavium.com> Cc: Mark Brown <broonie@linaro.org> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: <marc.zyngier@arm.com> Cc: <peter.maydell@linaro.org> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Jason Cooper <jason@lakedaemon.net> Link: http://lkml.kernel.org/r/1421054073-43468-3-git-send-email-eddie.huang@mediatek.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-01-07irqchip: mtk-sysirq: Use IS_ERR() instead of NULL pointer checkYingjoe Chen1-2/+2
Beniamino noticed a bug that an invalid DT file for the mediatek interrupt polarity extension will cause kernel oops. The reason is that the interrupt polarity support for mediatek chips merely checks for NULL pointer instead of a casted error return value in mtk_sysirq_of_init() so any other casted error value passes the NULL pointer check and causes a kernel panic when dereferenced. Use IS_ERR() and return the error value via PTR_ERR(). [ jac: took V2 over V3 for diff formatting, hand-added V3 changes, tweaked subject line. ] Reported-by: Beniamino Galvani <b.galvani@gmail.com> Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Link: https://lkml.kernel.org/r/1418205302-22531-1-git-send-email-yingjoe.chen@mediatek.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-11-26irqchip: mtk-sysirq: Add sysirq interrupt polarity supportYingjoe Chen1-0/+163
Mediatek SoCs have interrupt polarity support in sysirq which allows to invert polarity for given interrupt. Add this support using hierarchy irq domain. Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com> Link: https://lkml.kernel.org/r/1416902662-19281-3-git-send-email-yingjoe.chen@mediatek.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
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