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 -- 2.25.1
