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    SubjectRe: [PATCH V5 0/4] DRIVERS: IRQCHIP: Add support for crossbar IP
    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@arm.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@linutronix.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@linutronix.de> comments and
    >>>> Kumar Gala <galak@codeaurora.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.

    Regards,
    Sricharan


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