drivers/platform/x86/portwell-ec.c

File Facts

System

Linux kernel

Corpus path

drivers/platform/x86/portwell-ec.c

Extension

.c

Size

11423 bytes

Lines

461

Domain

Driver Families

Bucket

drivers/platform

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/acpi.h
• linux/bits.h
• linux/bitfield.h
• linux/dmi.h
• linux/gpio/driver.h
• linux/hwmon.h
• linux/init.h
• linux/io.h
• linux/ioport.h
• linux/module.h
• linux/platform_device.h
• linux/pm.h
• linux/sizes.h
• linux/string.h
• linux/units.h
• linux/watchdog.h

Detected Declarations

• struct pwec_sensor_prop
• struct pwec_board_info
• function pwec_write
• function pwec_read
• function pwec_read16_stable
• function pwec_gpio_get
• function pwec_gpio_set
• function pwec_gpio_get_direction
• function pwec_gpio_direction_input
• function pwec_gpio_direction_output
• function pwec_wdt_write_timeout
• function pwec_wdt_trigger
• function pwec_wdt_start
• function pwec_wdt_stop
• function pwec_wdt_set_timeout
• function pwec_wdt_get_timeleft
• function pwec_hwmon_is_visible
• function pwec_hwmon_read
• function pwec_hwmon_read_string
• function pwec_firmware_vendor_check
• function pwec_probe
• function pwec_suspend
• function pwec_resume
• function pwec_init
• function pwec_exit
• module init pwec_init

Annotated Snippet

module_init(pwec_init);
module_exit(pwec_exit);

MODULE_AUTHOR("Yen-Chi Huang <jesse.huang@portwell.com.tw>");
MODULE_DESCRIPTION("Portwell EC Driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/bits.h`, `linux/bitfield.h`, `linux/dmi.h`, `linux/gpio/driver.h`, `linux/hwmon.h`, `linux/init.h`, `linux/io.h`.
• Detected declarations: `struct pwec_sensor_prop`, `struct pwec_board_info`, `function pwec_write`, `function pwec_read`, `function pwec_read16_stable`, `function pwec_gpio_get`, `function pwec_gpio_set`, `function pwec_gpio_get_direction`, `function pwec_gpio_direction_input`, `function pwec_gpio_direction_output`.
• Atlas domain: Driver Families / drivers/platform.
• 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.