drivers/clk/qcom/gcc-ipq4019.c

File Facts

System

Linux kernel

Corpus path

drivers/clk/qcom/gcc-ipq4019.c

Extension

.c

Size

45639 bytes

Lines

1772

Domain

Driver Families

Bucket

drivers/clk

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/kernel.h
• linux/err.h
• linux/platform_device.h
• linux/module.h
• linux/of.h
• linux/clk-provider.h
• linux/regmap.h
• linux/reset-controller.h
• linux/math64.h
• linux/delay.h
• linux/clk.h
• dt-bindings/clock/qcom,gcc-ipq4019.h
• common.h
• clk-regmap.h
• clk-rcg.h
• clk-branch.h
• reset.h
• clk-regmap-divider.h

Detected Declarations

• struct clk_fepll_vco
• struct clk_fepll
• function clk_fepll_vco_calc_rate
• function clk_cpu_div_determine_rate
• function clk_cpu_div_set_rate
• function clk_cpu_div_recalc_rate
• function clk_regmap_clk_div_recalc_rate
• function gcc_ipq4019_cpu_clk_notifier_fn
• function gcc_ipq4019_probe
• function gcc_ipq4019_init
• function gcc_ipq4019_exit
• module init gcc_ipq4019_init

Annotated Snippet

core_initcall(gcc_ipq4019_init);

static void __exit gcc_ipq4019_exit(void)
{
	platform_driver_unregister(&gcc_ipq4019_driver);
}
module_exit(gcc_ipq4019_exit);

MODULE_ALIAS("platform:gcc-ipq4019");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("QCOM GCC IPQ4019 driver");

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/err.h`, `linux/platform_device.h`, `linux/module.h`, `linux/of.h`, `linux/clk-provider.h`, `linux/regmap.h`, `linux/reset-controller.h`.
• Detected declarations: `struct clk_fepll_vco`, `struct clk_fepll`, `function clk_fepll_vco_calc_rate`, `function clk_cpu_div_determine_rate`, `function clk_cpu_div_set_rate`, `function clk_cpu_div_recalc_rate`, `function clk_regmap_clk_div_recalc_rate`, `function gcc_ipq4019_cpu_clk_notifier_fn`, `function gcc_ipq4019_probe`, `function gcc_ipq4019_init`.
• Atlas domain: Driver Families / drivers/clk.
• 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.