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irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

Jason Cooper linux-arm-kernel linux-omap 2 versions – New

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  1. v6 Latest posting 2/20 of 7 patches 0 repliesNew
  2. v6 posting 1/20 of 7 patches 0 repliesSuperseded

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Cover letter [PATCH v6 0/7] irqchip: Move OMAP{4,5}/DRA7 to use stacked domains

Marc,

Quoted 83 lines · Marc Zyngier

This series is extracted from [4], which is trying to remove all traces of gic_arch_extn from the tree. As some maintainers are more responsive than others (understatement of the year...), I've decided to split it per sub-arch, and get it moving, at least partially.

This series addresses OMAP{4,5} by converting the WUGEN to stacked domains. The DRA7 crossbar gets the same treatment.

It is worth realizing that:

- I haven't been able to test this as much as I would have wanted to (it's only been tested on omap4 and omap5).

- This actively *breaks* existing setups. Once you boot a new kernel with an old DT, suspend/resume *will* be broken. Old kernels on a new DT won't even boot! You've been warned. This really outline the necessity of actually describing the HW in device trees...

Based on 4.0-rc1.

* From v5: [5]
- Allow interrupt affinity to be changed

* From v4: [4]
- Extracted from the full series
- Rebased on 4.0-rc1

* From v3 [3]:
- Rebased on top of the patch working around hardcoded IRQ on OMAP4/5 [4]
- Fixed more iMX6 DTs (Stephan)
- Fixed Exynos4/5 DTs

* From v2 [2]:
- Addressed numerous comments from Thierry
- Merged bug fixes from Nishanth
- Merged bug fix from Stefan

* From v1 [1]:
- Rebased on 3.19-rc3
- Fixed a number of additional platforms
- Added crossbar conversion to stacked domains
- Merged bug fixes from Nishanth

[5]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-February/325178.html
[4]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/317531.html
[3]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/315385.html
[2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-January/314041.html
[1]: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-November/307338.html

Marc Zyngier (7):
genirq: Add irqchip_set_wake_parent
irqchip: crossbar: convert dra7 crossbar to stacked domains
DT: update ti,irq-crossbar binding
irqchip: GIC: get rid of routable domain
DT: arm,gic: kill arm,routable-irqs
DT: omap4/5: add binding for the wake-up generator
ARM: omap: convert wakeupgen to stacked domains

 Documentation/devicetree/bindings/arm/gic.txt      |   6 -
 .../devicetree/bindings/arm/omap/crossbar.txt      |  18 +-
 .../interrupt-controller/ti,omap4-wugen-mpu        |  33 ++++
 arch/arm/boot/dts/am4372.dtsi                      |  11 +-
 arch/arm/boot/dts/am437x-gp-evm.dts                |   1 -
 arch/arm/boot/dts/am437x-sk-evm.dts                |   1 -
 arch/arm/boot/dts/am43x-epos-evm.dts               |   1 -
 arch/arm/boot/dts/am57xx-beagle-x15.dts            |   3 +-
 arch/arm/boot/dts/dra7-evm.dts                     |   2 +-
 arch/arm/boot/dts/dra7.dtsi                        |  43 +++--
 arch/arm/boot/dts/dra72-evm.dts                    |   1 -
 arch/arm/boot/dts/dra72x.dtsi                      |   3 +-
 arch/arm/boot/dts/dra74x.dtsi                      |   5 +-
 arch/arm/boot/dts/omap4-duovero.dtsi               |   2 -
 arch/arm/boot/dts/omap4-panda-common.dtsi          |   8 +-
 arch/arm/boot/dts/omap4-sdp.dts                    |   8 +-
 arch/arm/boot/dts/omap4-var-som-om44.dtsi          |   2 -
 arch/arm/boot/dts/omap4.dtsi                       |  18 +-
 arch/arm/boot/dts/omap5-cm-t54.dts                 |   1 -
 arch/arm/boot/dts/omap5-uevm.dts                   |   2 -
 arch/arm/boot/dts/omap5.dtsi                       |  26 ++-
 arch/arm/mach-omap2/omap-wakeupgen.c               | 128 ++++++++++---
 arch/arm/mach-omap2/omap-wakeupgen.h               |   1 -
 arch/arm/mach-omap2/omap4-common.c                 |  27 +--
 drivers/irqchip/irq-crossbar.c                     | 210 ++++++++++++---------
Quoted 8 lines
 drivers/irqchip/irq-gic.c                          |  59 +-----
 include/linux/irq.h                                |   1 +
 include/linux/irqchip/arm-gic.h                    |   6 -
 include/linux/irqchip/irq-crossbar.h               |  11 --
 kernel/irq/chip.c                                  |  16 ++
 30 files changed, 376 insertions(+), 278 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,omap4-wugen-mpu
 delete mode 100644 include/linux/irqchip/irq-crossbar.h

Applied to irqchip/stacked-omap.

thx,

Jason.

Read the cover letter in its thread