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From: Shawn Guo <>
To: Marc Zyngier <>, "Rafael J . Wysocki" <>
Cc: Valentin Schneider <>,
	Sebastian Andrzej Siewior <>,
	Thomas Gleixner <>,
	Maulik Shah <>,
	Bjorn Andersson <>,
	Sudeep Holla <>,
	Ulf Hansson <>,
	Daniel Lezcano <>,
	Rob Herring <>,,,, Shawn Guo <>
Subject: [PATCH v6 0/3] Add Qualcomm MPM irqchip driver support
Date: Wed, 23 Feb 2022 20:55:33 +0800	[thread overview]
Message-ID: <> (raw)

It starts from updating cpu_pm to support CPU_LAST_PM_ENTER (and
CPU_FIRST_PM_EXIT) event, and then adds DT binding and driver support
for Qualcomm MPM (MSM Power Manager) interrupt controller.

Changes for v6:
- Add new event CPU_LAST_PM_ENTER (and CPU_FIRST_PM_EXIT) in cpu_pm
- Drop vendor driver notes from commit log
- Check NULL mpm_gic_map instead to save the use of MPM_NO_PARENT_IRQ
- Add lock protection for register read in qcom_mpm_handler()
- Return IRQ_NONE if there is no pending interrupt
- Drop IRQF_TRIGGER_RISING flag from devm_request_irq() call since it's
  being specified in DT
- Drop dev_set_drvdata() call which is a leftover from previous version
- Fix dt_binding_check errors reported by upgraded dtschema

Changes for v5:
- Drop inline attributes and let compiler to decide
- Use _irqsave/_irqrestore flavour for spin lock
- Assignment on a single for irq_resolve_mapping() call
- Add documentation to explain vMPM ownership transition
- Move MPM pin map data into device tree and so use a generic compatible
- Drop the code that counts CPUs in PM and use CPU_CLUSTER_PM_ENTER
  notification instead

Changes for v4:
- Add the missing include of <linux/interrupt.h> to fix build errors
  on arm architecture.
- Leave IRQCHIP_PLATFORM_DRIVER infrastructural unchanged, and use
  of_find_device_by_node() to get platform_device pointer.

Changes for v3:
- Support module build
- Use relaxed accessors
- Add barrier call to ensure MMIO write completes
- Use d->chip_data to pass driver private data
- Use raw spinlock
- USe BIT() for bit shift
- Create a single irq domain to cover both types of MPM pins
- Call irq_resolve_mapping() to find out Linux irq number
- Save the use of ternary conditional operator and use switch/case for
  .irq_set_type call
- Drop unnecessary .irq_disable hook
- Align qcom_mpm_chip and qcom_mpm_ops members vertically
- Use helper irq_domain_translate_twocell()
- Move mailbox requesting forward in probe function
- Improve the documentation on qcm2290_gic_pins[]
- Use IRQCHIP_PLATFORM_DRIVER infrastructural
- Use cpu_pm notifier instead of .suspend_late hook to write MPM for
  sleep, so that MPM can be set up for both suspend and idle context.
  The TIMER0/1 setup is currently omitted for idle use case though,
  as I haven't been able to successfully test the idle context.

Shawn Guo (3):
  PM: cpu: Add CPU_LAST_PM_ENTER and CPU_FIRST_PM_EXIT support
  dt-bindings: interrupt-controller: Add Qualcomm MPM support
  irqchip: Add Qualcomm MPM controller driver

 .../interrupt-controller/qcom,mpm.yaml        |  96 ++++
 drivers/irqchip/Kconfig                       |   8 +
 drivers/irqchip/Makefile                      |   1 +
 drivers/irqchip/qcom-mpm.c                    | 439 ++++++++++++++++++
 include/linux/cpu_pm.h                        |  15 +
 kernel/cpu_pm.c                               |  33 +-
 6 files changed, 590 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml
 create mode 100644 drivers/irqchip/qcom-mpm.c


             reply	other threads:[~2022-02-23 12:57 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-23 12:55 Shawn Guo [this message]
2022-02-23 12:55 ` [PATCH v6 1/3] PM: cpu: Add CPU_LAST_PM_ENTER and CPU_FIRST_PM_EXIT support Shawn Guo
2022-02-23 19:30   ` Sudeep Holla
2022-02-25  4:33     ` Shawn Guo
2022-02-25 14:20       ` Sudeep Holla
2022-02-23 12:55 ` [PATCH v6 2/3] dt-bindings: interrupt-controller: Add Qualcomm MPM support Shawn Guo
2022-02-23 12:55 ` [PATCH v6 3/3] irqchip: Add Qualcomm MPM controller driver Shawn Guo
2022-02-23 23:43   ` kernel test robot
2022-02-24  2:10     ` Shawn Guo
2022-02-24  2:10       ` Shawn Guo
2022-02-25  8:54       ` Marc Zyngier
2022-02-25  8:54         ` Marc Zyngier
2022-05-04 14:08 ` [PATCH v6 0/3] Add Qualcomm MPM irqchip driver support Ulf Hansson
2022-05-04 19:21   ` Sudeep Holla

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