drivers/cpufreq/qcom-cpufreq-nvmem.c

File Facts

System

Linux kernel

Corpus path

drivers/cpufreq/qcom-cpufreq-nvmem.c

Extension

.c

Size

16943 bytes

Lines

673

Domain

Driver Families

Bucket

drivers/cpufreq

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/cpu.h
• linux/err.h
• linux/init.h
• linux/kernel.h
• linux/module.h
• linux/nvmem-consumer.h
• linux/of.h
• linux/platform_device.h
• linux/pm.h
• linux/pm_domain.h
• linux/pm_opp.h
• linux/pm_runtime.h
• linux/slab.h
• linux/soc/qcom/smem.h
• dt-bindings/arm/qcom,ids.h

Detected Declarations

• struct qcom_cpufreq_drv
• struct qcom_cpufreq_match_data
• struct qcom_cpufreq_drv_cpu
• struct qcom_cpufreq_drv
• enum ipq806x_versions
• enum ipq8074_versions
• function qcom_cpufreq_simple_get_version
• function get_krait_bin_format_a
• function get_krait_bin_format_b
• function qcom_cpufreq_kryo_name_version
• function qcom_cpufreq_krait_name_version
• function qcom_cpufreq_ipq8064_name_version
• function qcom_cpufreq_ipq6018_name_version
• function qcom_cpufreq_ipq8074_name_version
• function qcom_cpufreq_suspend_pd_devs
• function qcom_cpufreq_probe
• function for_each_present_cpu
• function qcom_cpufreq_remove
• function for_each_present_cpu
• function qcom_cpufreq_suspend
• function qcom_cpufreq_init
• function qcom_cpufreq_exit
• module init qcom_cpufreq_init

Annotated Snippet

module_init(qcom_cpufreq_init);

static void __exit qcom_cpufreq_exit(void)
{
	platform_device_unregister(cpufreq_pdev);
	platform_driver_unregister(&qcom_cpufreq_driver);
}
module_exit(qcom_cpufreq_exit);

MODULE_DESCRIPTION("Qualcomm Technologies, Inc. CPUfreq driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/cpu.h`, `linux/err.h`, `linux/init.h`, `linux/kernel.h`, `linux/module.h`, `linux/nvmem-consumer.h`, `linux/of.h`, `linux/platform_device.h`.
• Detected declarations: `struct qcom_cpufreq_drv`, `struct qcom_cpufreq_match_data`, `struct qcom_cpufreq_drv_cpu`, `struct qcom_cpufreq_drv`, `enum ipq806x_versions`, `enum ipq8074_versions`, `function qcom_cpufreq_simple_get_version`, `function get_krait_bin_format_a`, `function get_krait_bin_format_b`, `function qcom_cpufreq_kryo_name_version`.
• Atlas domain: Driver Families / drivers/cpufreq.
• Implementation status: integration implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.