Hi Marc, Let me know if you have any thoughts on this. Cheers Jon On 12/05/16 16:19, Jon Hunter wrote: > The Tegra210 has a 2nd level interrupt controller located in a separate > power domain to the main GIC interrupt controller and hence requires > runtime-pm support. > > Add a platform driver for the GICs that require runtime-pm and make the > necessary changes to the genirq and irqdomain core to support IRQ chips > that require runtime-pm. > > This series is based upon Marc Z's irq/irqchip-v4.7 branch [0]. > > Changes since V3: > - Split the series into two, placing the clean-up/fixes patches into > another series [1]. The remaining patches in this series are for > adding runtime-pm support for irqchips and adding a platform driver > of second level GICs. > - Dropped the patch to prevent early init of GICs if 'clocks' or > 'power-domains' properties are present and re-added the patch to add > the compatibilty string for the Tegra210 AGIC. > > Changes since V2: > - Corrected RPM support for irqchips in genirq core as pointed out by > Kevin Hilman. > - Corrected patch to save the irq type when mapping the interrupt. > - Dropped changes to DT binding documentation and added patch to prevent > early init of GICs if the 'clocks' and/or 'power-domains' DT > properties are present (as we have discussed). > - Moved platform driver code into it's own source file. > - Separate changes for preparing for the platform driver into 3 patches > in an attempt to make it more readable! > - Added fix for checking an interrupt descriptor is valid during IRQ > setup. > > Changes since V1: > - Updated GIC to only WARN and not return an error if configuring a PPI > fails but will still return an error if an SPI fails (per discussion > with Marc). > - Dropped change to mask sense bits for GIC-v3 (as this is not > necessary) > - Split patch to avoid setting interrupt type when mapping the IRQ into > two patches per TGLX's feedback. > - Changed name of irqchip device structure to "parent_device" > - Moved call to irq_chip_pm_get() outside of chip_bus_lock(). > - Dropped patch to remove clock names from GIC DT documentation and > added AGIC clock names. > - Update GIC platform driver to look-up clocks names from static list. > > [0] http://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git/log/?h=irq/irqchip-4.7 > [1] http://marc.info/?l=linux-tegra&m=146289329915585&w=2 > > Jon Hunter (9): > irqdomain: Fix handling of type settings for existing mappings > genirq: Look-up trigger type if not specified by caller > irqdomain: Don't set type when mapping an IRQ > genirq: Add runtime power management support for IRQ chips > irqchip/gic: Isolate early GIC initialisation code > irqchip/gic: Add helper function for chip initialisation > irqchip/gic: Prepare for adding platform driver > dt-bindings: arm-gic: Add documentation for Tegra210 AGIC > irqchip/gic: Add platform driver for non-root GICs that require RPM > > .../bindings/interrupt-controller/arm,gic.txt | 3 +- > drivers/irqchip/Kconfig | 6 + > drivers/irqchip/Makefile | 1 + > drivers/irqchip/irq-gic-common.c | 4 +- > drivers/irqchip/irq-gic-pm.c | 187 +++++++++++++++++++++ > drivers/irqchip/irq-gic.c | 136 ++++++++++----- > drivers/irqchip/irq-gic.h | 30 ++++ > include/linux/irq.h | 4 + > include/linux/irqdomain.h | 3 + > kernel/irq/chip.c | 35 ++++ > kernel/irq/internals.h | 1 + > kernel/irq/irqdomain.c | 58 ++++++- > kernel/irq/manage.c | 38 ++++- > 13 files changed, 451 insertions(+), 55 deletions(-) > create mode 100644 drivers/irqchip/irq-gic-pm.c > create mode 100644 drivers/irqchip/irq-gic.h > -- nvpublic -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
