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 patch prevents the ACPI core from attempting to map IRQ resources with a valid ResourceSource as GSIs. The second 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. Both changes described above 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-rc7. Changes V7 -> V8: * Reorder patches to allow all new code to be under drivers/acpi/irq.c. * Change acpi_irq_get implementation to be more similar to of_irq_get to improve maintainability. 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: Add support for ResourceSource/IRQ domain mapping ACPI: Retry IRQ conversion if it failed previously irqchip: qcom: Add IRQ combiner driver drivers/acpi/Makefile | 2 +- drivers/acpi/gsi.c | 98 ----------- drivers/acpi/irq.c | 315 +++++++++++++++++++++++++++++++++ drivers/acpi/resource.c | 29 ++-- drivers/base/platform.c | 9 +- drivers/irqchip/Kconfig | 8 + drivers/irqchip/Makefile | 1 + drivers/irqchip/qcom-irq-combiner.c | 337 ++++++++++++++++++++++++++++++++++++ include/linux/acpi.h | 28 +++ 9 files changed, 714 insertions(+), 113 deletions(-) delete mode 100644 drivers/acpi/gsi.c create mode 100644 drivers/acpi/irq.c 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. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
