drivers/hsi/clients/nokia-modem.c

File Facts

System

Linux kernel

Corpus path

drivers/hsi/clients/nokia-modem.c

Extension

.c

Size

7184 bytes

Lines

299

Domain

Driver Families

Bucket

drivers/hsi

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/gpio/consumer.h
• linux/hsi/hsi.h
• linux/init.h
• linux/interrupt.h
• linux/of.h
• linux/of_irq.h
• linux/hsi/ssi_protocol.h

Detected Declarations

• struct nokia_modem_gpio
• struct nokia_modem_device
• function do_nokia_modem_rst_ind_tasklet
• function nokia_modem_rst_ind_isr
• function nokia_modem_gpio_unexport
• function nokia_modem_gpio_probe
• function nokia_modem_probe
• function nokia_modem_remove
• function nokia_modem_init
• function nokia_modem_exit
• module init nokia_modem_init

Annotated Snippet

module_init(nokia_modem_init);

static void __exit nokia_modem_exit(void)
{
	hsi_unregister_client_driver(&nokia_modem_driver);
}
module_exit(nokia_modem_exit);

MODULE_ALIAS("hsi:nokia-modem");
MODULE_AUTHOR("Sebastian Reichel <sre@kernel.org>");
MODULE_DESCRIPTION("HSI driver module for Nokia N900 Modem");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/gpio/consumer.h`, `linux/hsi/hsi.h`, `linux/init.h`, `linux/interrupt.h`, `linux/of.h`, `linux/of_irq.h`, `linux/hsi/ssi_protocol.h`.
• Detected declarations: `struct nokia_modem_gpio`, `struct nokia_modem_device`, `function do_nokia_modem_rst_ind_tasklet`, `function nokia_modem_rst_ind_isr`, `function nokia_modem_gpio_unexport`, `function nokia_modem_gpio_probe`, `function nokia_modem_probe`, `function nokia_modem_remove`, `function nokia_modem_init`, `function nokia_modem_exit`.
• Atlas domain: Driver Families / drivers/hsi.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.