Subject: [PATCH V5 0/4] DRIVERS: IRQCHIP: Add support for crossbar IP

From: [email-masked] (Sricharan R)
Date: Mon, 30 Dec 2013 11:58:20 +0530

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 <[email-masked]>,
>>>>>    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 <[email-masked]>
>>>>>
>>>>>    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 <[email-masked]> comments and
>>>>>    Kumar Gala <[email-masked]>
>>>>>
>>>>>    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