linux-kernel - [PATCH V3 0/2] irqchip: qcom: Add IRQ combiner driver

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Date:	Fri, 13 May 2016 12:16:41 -0400
From:	Agustin Vega-Frias <agustinv@...eaurora.org>
To:	linux-kernel@...r.kernel.org,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>
Cc:	timur@...eaurora.org, cov@...eaurora.org, agross@...eaurora.org,
	harba@...eaurora.org, jcm@...hat.com, msalter@...hat.com,
	mlangsdo@...hat.com, ahs3@...hat.com, astone@...hat.com,
	graeme.gregory@...aro.org, guohanjun@...wei.com,
	charles.garcia-tobin@....com, agustinv@...eaurora.org
Subject: [PATCH V3 0/2] irqchip: qcom: Add IRQ combiner driver

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

-- 
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.