Yingjoe, On Tue, Nov 25, 2014 at 04:04:18PM +0800, Yingjoe Chen wrote: > This series is 8th version of interrupt polarity support for MediaTek SoCs. > > I rebased previous version to latest tip/irq/irqdomain, and fix issues > raised by Marc & Mark. The interrupt & irq free work fine on mt8135 board. > > Simplified block diagram for interrupt on my system: > > +-------+ +-------+ > ---| SYSIRQ|------|ARM GIC| > ---| |------| | > ---| |------| | > ---| |------| | > ---| |------| | > +-------+ +-------+ > > In device tree, interrupt-parent for other devices is sysirq, child of gic. > This describe HW better and allow device to specify polarity as it is sent > by the device. > > When using hierarchy irq domain, gic will use irq_domain_add_linear to > create irqdomain and all interrupt numbers must come from device tree. My > /proc/interrupts looks like this now: > > # cat /proc/interrupts > CPU0 > 16: 149578 MT_SYSIRQ 113 mtk_timer > 20: 1082 MT_SYSIRQ 54 serial > > Changes in v8: > - Rebased to new tip/irq/irqdomain > - Update mediatek,sysirq.txt bindinds to document interrupt-cells format > and interrupt-parents > - Change interrupt-cells format check in mtk_sysirq. > - Minor coding style fix > > Changes in v7: > - Discussed in [1] > - Rebased to tip/irq/irqdomain > - In mtk_sysirq_domain_alloc, use copy of irq_data to workaound of_node > check in gic_irq_domain_xlate. > > Changes in v6: > - Discussed in [2] > - Rebased to tip/irq/irqdomain > > Changes in v5: > - Discussed in [3] > - Fix bug on mt6589 reported by Matthias > - Fix bug for irq_find_mapping in irq_create_of_mapping > - Merge Marc's change to proper handle non-DT case in gic_init_bases > > Changes in v4: > - Discussed in [4] > - Remove arm,hierarchy-irq-domain. When GIC is probed by DT, it will > support hierarchy irqdomain. > > Changes in v3: > - Discussed in [5] > - First implementation using hierarchy irqdomain > > [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/304119.html > [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/302221.html > [3] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-October/298161.html > [4] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-October/296911.html > [5] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-October/293766.html > > Yingjoe Chen (4): > irqchip: gic: Support hierarchy irq domain. > ARM: mediatek: Add sysirq interrupt polarity support > ARM: mediatek: Add sysirq in mt6589/mt8135/mt8127 dtsi > dt-bindings: add bindings for mediatek sysirq > > .../bindings/arm/mediatek/mediatek,sysirq.txt | 28 ++++ > arch/arm/boot/dts/mt6589.dtsi | 14 +- > arch/arm/boot/dts/mt8127.dtsi | 14 +- > arch/arm/boot/dts/mt8135.dtsi | 14 +- > drivers/irqchip/Kconfig | 1 + > drivers/irqchip/Makefile | 1 + > drivers/irqchip/irq-gic.c | 77 +++++++--- > drivers/irqchip/irq-mtk-sysirq.c | 163 +++++++++++++++++++++ > 8 files changed, 282 insertions(+), 30 deletions(-) > create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,sysirq.txt > create mode 100644 drivers/irqchip/irq-mtk-sysirq.c Patches 1, 2, and 4 applied to irqchip/core with a dependency on tip/irq/irqdomain with a few small subject line tweaks. thx, Jason. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
