drivers/bus/ti-sysc.c

File Facts

System

Linux kernel

Corpus path

drivers/bus/ti-sysc.c

Extension

.c

Size

85853 bytes

Lines

3348

Domain

Driver Families

Bucket

drivers/bus

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.
• 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/io.h
• linux/clk.h
• linux/clkdev.h
• linux/cpu_pm.h
• linux/delay.h
• linux/list.h
• linux/module.h
• linux/platform_device.h
• linux/pm_domain.h
• linux/pm_runtime.h
• linux/reset.h
• linux/of_address.h
• linux/of_platform.h
• linux/slab.h
• linux/sys_soc.h
• linux/timekeeping.h
• linux/iopoll.h
• linux/platform_data/ti-sysc.h
• dt-bindings/bus/ti-sysc.h

Detected Declarations

• struct sysc_address
• struct sysc_module
• struct sysc_soc_info
• struct sysc
• struct sysc_revision_quirk
• struct sysc_dts_quirk
• enum sysc_soc
• enum sysc_clocks
• function Copyright
• function sysc_write
• function sysc_read
• function sysc_opt_clks_needed
• function sysc_read_revision
• function sysc_read_sysconfig
• function sysc_read_sysstatus
• function sysc_poll_reset_sysstatus
• function sysc_poll_reset_sysconfig
• function sysc_wait_softreset
• function sysc_add_named_clock_from_child
• function sysc_init_ext_opt_clock
• function sysc_get_one_clock
• function sysc_get_clocks
• function of_property_for_each_string
• function sysc_enable_main_clocks
• function sysc_disable_main_clocks
• function sysc_enable_opt_clocks
• function sysc_disable_opt_clocks
• function sysc_clkdm_deny_idle
• function sysc_clkdm_allow_idle
• function sysc_rstctrl_reset_deassert
• function sysc_parse_and_check_child_range
• function for_each_of_range
• function sysc_init_stdout_path
• function sysc_check_quirk_stdout
• function sysc_check_one_child
• function sysc_check_children
• function sysc_check_quirk_16bit
• function sysc_parse_one
• function sysc_parse_registers
• function sysc_check_registers
• function sysc_ioremap
• function sysc_map_and_check_registers
• function sysc_show_rev
• function sysc_show_reg
• function sysc_show_name
• function sysc_show_registers
• function sysc_write_sysconfig
• function sysc_enable_module

Annotated Snippet

module_init(sysc_init);

static void __exit sysc_exit(void)
{
	bus_unregister_notifier(&platform_bus_type, &sysc_nb);
	platform_driver_unregister(&sysc_driver);
	sysc_cleanup_static_data();
}
module_exit(sysc_exit);

MODULE_DESCRIPTION("TI sysc interconnect target driver");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/io.h`, `linux/clk.h`, `linux/clkdev.h`, `linux/cpu_pm.h`, `linux/delay.h`, `linux/list.h`, `linux/module.h`, `linux/platform_device.h`.
• Detected declarations: `struct sysc_address`, `struct sysc_module`, `struct sysc_soc_info`, `struct sysc`, `struct sysc_revision_quirk`, `struct sysc_dts_quirk`, `enum sysc_soc`, `enum sysc_clocks`, `function Copyright`, `function sysc_write`.
• Atlas domain: Driver Families / drivers/bus.
• 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.