| From: |
| Shawn Guo <shawn.guo-AT-linaro.org> |
| To: |
| Marc Zyngier <maz-AT-kernel.org>, Thomas Gleixner <tglx-AT-linutronix.de> |
| Subject: |
| [PATCH v5 0/3] Add Qualcomm MPM irqchip driver support |
| Date: |
| Wed, 16 Feb 2022 21:28:27 +0800 |
| Message-ID: |
| <20220216132830.32490-1-shawn.guo@linaro.org> |
| Cc: |
| Maulik Shah <quic_mkshah-AT-quicinc.com>, Bjorn Andersson <bjorn.andersson-AT-linaro.org>, Lorenzo Pieralisi <lorenzo.pieralisi-AT-arm.com>, Sudeep Holla <sudeep.holla-AT-arm.com>, "Rafael J . Wysocki" <rafael-AT-kernel.org>, Daniel Lezcano <daniel.lezcano-AT-linaro.org>, Rob Herring <robh+dt-AT-kernel.org>, devicetree-AT-vger.kernel.org, linux-arm-msm-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, Shawn Guo <shawn.guo-AT-linaro.org> |
| Archive-link: |
| Article |
It starts from updating cpuidle-psci driver to send CPU_CLUSTER_PM_ENTER
notification, and then adds DT binding and driver support for Qualcomm
MPM (MSM Power Manager) interrupt controller.
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):
cpuidle: psci: Call cpu_cluster_pm_enter() on the last CPU
dt-bindings: interrupt-controller: Add Qualcomm MPM support
irqchip: Add Qualcomm MPM controller driver
.../interrupt-controller/qcom,mpm.yaml | 94 ++++
drivers/cpuidle/cpuidle-psci.c | 13 +
drivers/irqchip/Kconfig | 8 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/qcom-mpm.c | 440 ++++++++++++++++++
5 files changed, 556 insertions(+)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml
create mode 100644 drivers/irqchip/qcom-mpm.c
--
2.17.1
