drivers/clk/microchip/clk-mpfs.c

File Facts

System

Linux kernel

Corpus path

drivers/clk/microchip/clk-mpfs.c

Extension

.c

Size

18075 bytes

Lines

588

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.
• 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/cleanup.h
• linux/clk-provider.h
• linux/io.h
• linux/mfd/syscon.h
• linux/module.h
• linux/platform_device.h
• linux/regmap.h
• dt-bindings/clock/microchip,mpfs-clock.h
• soc/microchip/mpfs.h

Detected Declarations

• struct mpfs_clock_data
• struct mpfs_msspll_hw_clock
• struct mpfs_msspll_out_hw_clock
• struct mpfs_cfg_clock
• struct mpfs_cfg_hw_clock
• struct mpfs_periph_clock
• struct mpfs_periph_hw_clock
• function mpfs_clk_msspll_recalc_rate
• function mpfs_clk_register_mssplls
• function mpfs_clk_register_msspll_outs
• function mpfs_cfg_clk_recalc_rate
• function mpfs_cfg_clk_determine_rate
• function mpfs_cfg_clk_set_rate
• function mpfs_clk_register_cfgs
• function mpfs_periph_clk_enable
• function mpfs_periph_clk_disable
• function mpfs_periph_clk_is_enabled
• function mpfs_clk_register_periphs
• function mpfs_clk_syscon_probe
• function mpfs_clk_old_format_probe
• function mpfs_clk_probe
• function clk_mpfs_init
• function clk_mpfs_exit
• module init clk_mpfs_init

Annotated Snippet

core_initcall(clk_mpfs_init);

static void __exit clk_mpfs_exit(void)
{
	platform_driver_unregister(&mpfs_clk_driver);
}
module_exit(clk_mpfs_exit);

MODULE_DESCRIPTION("Microchip PolarFire SoC Clock Driver");
MODULE_AUTHOR("Padmarao Begari <padmarao.begari@microchip.com>");
MODULE_AUTHOR("Daire McNamara <daire.mcnamara@microchip.com>");
MODULE_AUTHOR("Conor Dooley <conor.dooley@microchip.com>");
MODULE_IMPORT_NS("MCHP_CLK_MPFS");

Annotation

• Immediate include surface: `linux/cleanup.h`, `linux/clk-provider.h`, `linux/io.h`, `linux/mfd/syscon.h`, `linux/module.h`, `linux/platform_device.h`, `linux/regmap.h`, `dt-bindings/clock/microchip,mpfs-clock.h`.
• Detected declarations: `struct mpfs_clock_data`, `struct mpfs_msspll_hw_clock`, `struct mpfs_msspll_out_hw_clock`, `struct mpfs_cfg_clock`, `struct mpfs_cfg_hw_clock`, `struct mpfs_periph_clock`, `struct mpfs_periph_hw_clock`, `function mpfs_clk_msspll_recalc_rate`, `function mpfs_clk_register_mssplls`, `function mpfs_clk_register_msspll_outs`.
• 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.