Add support for IRQ combiners in the Top-level Control and Status
Registers (TCSR) hardware block in Qualcomm Technologies chips.
The first patch fixes IRQ probe deferral by allowing platform_device
IRQ resources to be re-initialized if the ACPI core failed to find
the IRQ domain during ACPI bus scan.
The second patch adds support for ResourceSource/IRQ domain mapping
when using Extended IRQ Resources with a specific ResourceSource.
These changes are conditional on the ACPI_GENERIC_GSI config.
The third patch takes advantage of the new capabilities to implement
the driver for the IRQ combiners.
Tested on top of v4.9-rc4.
Changes V6 -> V7:
* Consolidate changes for ResourceSource/IRQ domain mapping to the same
source file implementing the generic GSI support, making it conditional
on CONFIG_ACPI_GENERIC_GSI.
* Eliminate some code duplication by implementing acpi_register_gsi in
terms of the new acpi_register_irq API.
Changes V5 -> V6:
* Drop probe table and on-demand probing based on resource_source
* Add patch to fix probe deferral
* Change back combiner driver to use the platform_device/platform_driver
APIs
Agustin Vega-Frias (3):
ACPI: Retry IRQ conversion if it failed previously
ACPI: Add support for ResourceSource/IRQ domain mapping
irqchip: qcom: Add IRQ combiner driver
drivers/acpi/Makefile | 2 +-
drivers/acpi/{gsi.c => irq.c} | 98 +++++++++--
drivers/acpi/resource.c | 88 ++++++++--
drivers/base/platform.c | 9 +-
drivers/irqchip/Kconfig | 8 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/qcom-irq-combiner.c | 337 ++++++++++++++++++++++++++++++++++++
include/linux/acpi.h | 26 +++
8 files changed, 541 insertions(+), 28 deletions(-)
rename drivers/acpi/{gsi.c => irq.c} (53%)
create mode 100644 drivers/irqchip/qcom-irq-combiner.c
--
Qualcomm Datacenter Technologies, Inc. on behalf of the Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
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