drivers/clk/qcom/clk-rpmh.c

File Facts

System

Linux kernel

Corpus path

drivers/clk/qcom/clk-rpmh.c

Extension

.c

Size

36965 bytes

Lines

1130

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/clk-provider.h
• linux/err.h
• linux/kernel.h
• linux/module.h
• linux/of.h
• linux/platform_device.h
• linux/string_choices.h
• soc/qcom/cmd-db.h
• soc/qcom/rpmh.h
• soc/qcom/tcs.h
• dt-bindings/clock/qcom,rpmh.h

Detected Declarations

• struct bcm_db
• struct clk_rpmh
• struct clk_rpmh_desc
• function BIT
• function BIT
• function has_state_changed
• function clk_rpmh_send
• function clk_rpmh_send_aggregate_command
• function clk_rpmh_aggregate_state_send_command
• function clk_rpmh_prepare
• function clk_rpmh_unprepare
• function clk_rpmh_recalc_rate
• function clk_rpmh_bcm_send_cmd
• function clk_rpmh_bcm_prepare
• function clk_rpmh_bcm_unprepare
• function clk_rpmh_bcm_set_rate
• function clk_rpmh_determine_rate
• function clk_rpmh_bcm_recalc_rate
• function clk_rpmh_probe
• function clk_rpmh_init
• function clk_rpmh_exit
• module init clk_rpmh_init

Annotated Snippet

core_initcall(clk_rpmh_init);

static void __exit clk_rpmh_exit(void)
{
	platform_driver_unregister(&clk_rpmh_driver);
}
module_exit(clk_rpmh_exit);

MODULE_DESCRIPTION("QCOM RPMh Clock Driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/clk-provider.h`, `linux/err.h`, `linux/kernel.h`, `linux/module.h`, `linux/of.h`, `linux/platform_device.h`, `linux/string_choices.h`, `soc/qcom/cmd-db.h`.
• Detected declarations: `struct bcm_db`, `struct clk_rpmh`, `struct clk_rpmh_desc`, `function BIT`, `function BIT`, `function has_state_changed`, `function clk_rpmh_send`, `function clk_rpmh_send_aggregate_command`, `function clk_rpmh_aggregate_state_send_command`, `function clk_rpmh_prepare`.
• Atlas domain: Driver Families / drivers/clk.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.