From: Carlo Caione <carlo@xxxxxxxxxxxx>
In Meson SoCs we have 8 independent GPIO interrupts that can be programmed to
use any of the GPIOs in the chip as interrupt source.
These GPIOs are managed by GIC but they can be conditioned (and enabled) by
some registers external to the GIC.
GPIOs |--[mux1 or mux2]--[polarity]--[filter]--[edge_select]--> GIC
For discussion see comment to the [PATCH 3/5].
Changelog:
* V2:
- Introduced .irq_request_resources() and .irq_release_resources()
- s/virq/irq/ and s/pin/hwirq/
- Moved to the new irq_fwspec
Carlo Caione (5):
of/irq: export of_irq_find_parent again
irqdomain: introduce irq_of_phandle_args_to_fwspec
pinctrl: meson: enable GPIO IRQs
pinctrl: dt-binding: Extend meson documentation with GPIO IRQs support
ARM: meson: DTS: Enable GPIO IRQs
.../devicetree/bindings/pinctrl/meson,pinctrl.txt | 12 +
arch/arm/boot/dts/meson8b.dtsi | 6 +
drivers/of/irq.c | 2 +-
drivers/pinctrl/Kconfig | 1 +
drivers/pinctrl/meson/pinctrl-meson.c | 303 +++++++++++++++++++++
drivers/pinctrl/meson/pinctrl-meson.h | 18 +-
drivers/pinctrl/meson/pinctrl-meson8.c | 36 ++-
drivers/pinctrl/meson/pinctrl-meson8b.c | 36 ++-
include/linux/of_irq.h | 8 +
kernel/irq/irqdomain.c | 5 +-
10 files changed, 393 insertions(+), 34 deletions(-)
--
2.5.0
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