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Message-ID: <52C11284.2030500@ti.com> Date: Mon, 30 Dec 2013 11:58:20 +0530 From: Sricharan R <r.sricharan@...com> To: Santosh Shilimkar <santosh.shilimkar@...com> CC: <tony@...mide.com>, <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-omap@...r.kernel.org>, <linus.walleij@...aro.org>, <linux@....linux.org.uk>, <rnayak@...com>, <marc.zyngier@....com>, <grant.likely@...aro.org>, <mark.rutland@....com>, <robherring2@...il.com>, <tglx@...utronix.de>, <galak@...eaurora.org>, <rob.herring@...xeda.com>, <nm@...com>, <bcousson@...libre.com> Subject: Re: [PATCH V5 0/4] DRIVERS: IRQCHIP: Add support for crossbar IP Hi Tony, On Friday 27 December 2013 07:19 PM, Sricharan R wrote: > On Thursday 26 December 2013 11:14 PM, Santosh Shilimkar wrote: >> Sricharan, >> >> On Wednesday 25 December 2013 11:52 PM, Sricharan R wrote: >>> Hi Thomas, >>> On Wednesday 18 December 2013 02:49 PM, Sricharan R wrote: >>>> Hi Thomas, >>>> >>>> On Tuesday 03 December 2013 03:57 PM, Sricharan R wrote: >>>>> Some socs have a large number of interrupts requests to service >>>>> the needs of its many peripherals and subsystems. All of the interrupt >>>>> requests lines from the subsystems are not needed at the same >>>>> time, so they have to be muxed to the controllers appropriately. >>>>> In such places a interrupt controllers are preceded by an >>>>> IRQ CROSSBAR that provides flexibility in muxing the device interrupt >>>>> requests to the controller inputs. >>>>> >>>>> This series models the peripheral interrupts that can be routed through >>>>> the crossbar to the GIC as 'routable-irqs'. The routable irqs are added >>>>> in a separate linear domain inside the GIC. The registered routable domain's >>>>> callback are invoked as a part of the GIC's callback, which in turn should >>>>> allocate a free irq line and configure the IP accordingly. So every peripheral >>>>> in the dts files mentions the fixed crossbar number as its interrupt. A free >>>>> gic line for that gets allocated and configured when the peripheral interrupts >>>>> are mapped. >>>>> >>>>> The minimal crossbar driver to track and allocate free GIC lines and configure the >>>>> crossbar is added here, along with the DT bindings. >>>>> >>>>> V5: >>>>> Addressed a comment from Mark Rutland <mark.rutland@....com>, >>>>> updated tags and rebased on 3.13-rc2 >>>>> >>>>> V4: >>>>> Addressed a couple of comments and split the DTS file updates in to >>>>> a separate series. >>>>> >>>>> V3: >>>>> Addressed few more comments from Thomas Gleixner <tglx@...utronix.de> >>>>> >>>>> Rebased patches 3,4,5,7 which updates the DTS file on top of below branch >>>>> git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt.git >>>>> for_3.13/dts >>>>> >>>>> Rebased patches 1,2,6 on top of 3.12 mainline >>>>> Updated Commit tags >>>>> >>>>> V2: >>>>> Addressed Thomas Gleixner <tglx@...utronix.de> comments and >>>>> Kumar Gala <galak@...eaurora.org> >>>>> >>>>> Split updating the DRA7.dtsi file for adding the routable-irqs >>>>> >>>>> Previous discussions that led to this is at >>>>> https://lkml.org/lkml/2013/9/18/540 >>>>> >>>>> The V1,V2,V3,V4 post of these patches is at >>>>> [V1] https://lkml.org/lkml/2013/9/30/283 >>>>> [V2] http://www.spinics.net/lists/linux-omap/msg99540.html >>>>> [V3] http://www.kernelhub.org/?msg=356470&p=2 >>>>> [V4] http://www.spinics.net/lists/linux-doc/msg16726.html >>>>> >>>>> Sricharan R (4): >>>>> DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs >>>>> DRIVERS: IRQCHIP: CROSSBAR: Add support for Crossbar IP >>>>> ARM: OMAP4+: Correct Wakeup-gen code to use physical irq number >>>>> ARM: DRA: Enable Crossbar IP support for DRA7XX >>>>> >>>>> Documentation/devicetree/bindings/arm/gic.txt | 6 + >>>>> .../devicetree/bindings/arm/omap/crossbar.txt | 27 +++ >>>>> arch/arm/mach-omap2/Kconfig | 1 + >>>>> arch/arm/mach-omap2/omap-wakeupgen.c | 4 +- >>>>> arch/arm/mach-omap2/omap4-common.c | 2 + >>>>> drivers/irqchip/Kconfig | 8 + >>>>> drivers/irqchip/Makefile | 1 + >>>>> drivers/irqchip/irq-crossbar.c | 208 ++++++++++++++++++++ >>>>> drivers/irqchip/irq-gic.c | 81 +++++++- >>>>> include/linux/irqchip/arm-gic.h | 7 +- >>>>> include/linux/irqchip/irq-crossbar.h | 11 ++ >>>>> 11 files changed, 343 insertions(+), 13 deletions(-) >>>>> create mode 100644 Documentation/devicetree/bindings/arm/omap/crossbar.txt >>>>> create mode 100644 drivers/irqchip/irq-crossbar.c >>>>> create mode 100644 include/linux/irqchip/irq-crossbar.h >>>>> >>>> >>>> I have addressed all the comments on this series, can this be merged now ? >>>> >>> Ping.. >>> >> Thomas has already given his reviewed-by tag so the patches can be >> taken via arm-soc tree considering OMAP and GIC changes. Can you >> create a branch with all these patches applied and send it >> to Tony ? >> > Ok, i will send out a branch for this. > I have pushed the below branch git://github.com/Sricharanti/sricharan.git branch: crossbar This is on top of Tony's linux-omap master branch Regards, Sricharan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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