[PATCH 0/5] GIC OF bindings
Shawn Guo
shawn.guo at freescale.com
Thu Sep 15 09:53:12 EDT 2011
On Wed, Sep 14, 2011 at 11:31:35AM -0500, Rob Herring wrote:
> From: Rob Herring <rob.herring at calxeda.com>
>
> This series introduces of_irq_init to scan the device tree for interrupt
> controller nodes and call their init functions in proper order. The GIC
> init function is then called from this function. The platform code then
> looks something like this:
>
> const static struct of_device_id irq_match[] = {
> { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
> {}
> };
>
> static void __init highbank_init_irq(void)
> {
> of_irq_init(irq_match);
> }
>
> The binding for GIC PPIs is now done with a 3rd interrupt cell to specify
> a cpu mask for which cpu the PPI is connected to. This was discussed at LPC
> and suggested by Grant.
>
> I dropped the public intc_desc struct. The the interrupt controller's node
> and the interrupt parent's node are passed in directly to the controller's
> init function. The linux irq assignment is now done dynamically using
> irq_alloc_descs.
>
> The first 2 patches are minor fixes to irqdomains.
>
> Rob
>
> Rob Herring (5):
> irq: add declaration of irq_domain_simple_ops to irqdomain.h
> irq: fix existing domain check in irq_domain_add
> of/irq: introduce of_irq_init
> ARM: gic: allow irq_start to be 0
> ARM: gic: add OF based initialization
>
> Documentation/devicetree/bindings/arm/gic.txt | 53 ++++++++++++++
> arch/arm/common/gic.c | 57 +++++++++++++--
> arch/arm/include/asm/hardware/gic.h | 10 +++
> drivers/of/irq.c | 96 +++++++++++++++++++++++++
> include/linux/irqdomain.h | 1 +
> include/linux/of_irq.h | 1 +
> kernel/irq/irqdomain.c | 2 +-
> 7 files changed, 214 insertions(+), 6 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/arm/gic.txt
On imx6q:
Tested-by: Shawn Guo <shawn.guo at linaro.org>
--
Regards,
Shawn
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