Add support for IRQ combiners in the Top-level Control and Status
Registers (TCSR) hardware block in Qualcomm Technologies chips.
The first patch adds support for ResourceSource/IRQ domain mapping
when using Extended IRQ Resources with a specific ResourceSource.
The core ACPI resource management code has been changed to lookup
the IRQ domain when an IRQ resource indicates a ResourceSource,
and register the IRQ on that domain, instead of a GSI.
The second patch takes advantage of the new capabilities to implement
the driver for the IRQ combiners.
Changes V1 -> V2:
* Remove use of GPIO library for the combiner
* Refactor to use fwnode/ResourceSource to IRQ domain mapping
introduced in ACPI core
Changes V2 -> V3:
* Removed parsing of _PRS to find IRQs
* Removed acpi_irq_domain_create and acpi_irq_domain_remove
Agustin Vega-Frias (2):
ACPI: Add support for ResourceSource/IRQ domain mapping
irqchip: qcom: Add IRQ combiner driver
drivers/acpi/Makefile | 1 +
drivers/acpi/irqdomain.c | 108 +++++++++++
drivers/acpi/resource.c | 23 ++-
drivers/irqchip/Kconfig | 8 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/qcom-irq-combiner.c | 344 ++++++++++++++++++++++++++++++++++++
include/linux/acpi.h | 6 +
7 files changed, 483 insertions(+), 8 deletions(-)
create mode 100644 drivers/acpi/irqdomain.c
create mode 100644 drivers/irqchip/qcom-irq-combiner.c
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