drivers/soc/fsl/qe/qe.c

Source file repositories/reference/linux-study-clean/drivers/soc/fsl/qe/qe.c

File Facts

System: Linux kernel
Corpus path: drivers/soc/fsl/qe/qe.c
Extension: .c
Size: 17086 bytes
Lines: 686
Domain: Driver Families
Bucket: drivers/soc
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/bitmap.h
linux/errno.h
linux/sched.h
linux/kernel.h
linux/param.h
linux/string.h
linux/spinlock.h
linux/mm.h
linux/interrupt.h
linux/module.h
linux/delay.h
linux/ioport.h
linux/iopoll.h
linux/crc32.h
linux/mod_devicetable.h
linux/of.h
linux/platform_device.h
soc/fsl/qe/immap_qe.h
soc/fsl/qe/qe.h

Detected Declarations

function get_qe_base
function qe_reset
function qe_issue_cmd
function qe_get_brg_clk
function qe_general4_errata
function qe_setbrg
function qe_clock_source
function qe_snums_init
function qe_get_snum
function qe_put_snum
function qe_sdma_init
function qe_upload_firmware
function qe_upload_firmware
function qe_get_num_of_risc
function qe_get_num_of_snums
function qe_init
function qe_resume
function qe_probe
module init qe_init
export cmxgcr_lock
export qe_immr
export qe_issue_cmd
export qe_get_brg_clk
export qe_setbrg
export qe_clock_source
export qe_get_snum
export qe_put_snum
export qe_upload_firmware
export qe_get_firmware_info
export qe_get_num_of_risc
export qe_get_num_of_snums

Annotated Snippet

subsys_initcall(qe_init);

#if defined(CONFIG_SUSPEND) && defined(CONFIG_PPC_85xx)
static int qe_resume(struct platform_device *ofdev)
{
	if (!qe_alive_during_sleep())
		qe_reset();
	return 0;
}

static int qe_probe(struct platform_device *ofdev)
{
	return 0;
}

static const struct of_device_id qe_ids[] = {
	{ .compatible = "fsl,qe", },
	{ },
};

static struct platform_driver qe_driver = {
	.driver = {
		.name = "fsl-qe",
		.of_match_table = qe_ids,
	},
	.probe = qe_probe,
	.resume = qe_resume,
};

builtin_platform_driver(qe_driver);
#endif /* defined(CONFIG_SUSPEND) && defined(CONFIG_PPC_85xx) */

Annotation

Immediate include surface: `linux/bitmap.h`, `linux/errno.h`, `linux/sched.h`, `linux/kernel.h`, `linux/param.h`, `linux/string.h`, `linux/spinlock.h`, `linux/mm.h`.
Detected declarations: `function get_qe_base`, `function qe_reset`, `function qe_issue_cmd`, `function qe_get_brg_clk`, `function qe_general4_errata`, `function qe_setbrg`, `function qe_clock_source`, `function qe_snums_init`, `function qe_get_snum`, `function qe_put_snum`.
Atlas domain: Driver Families / drivers/soc.
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.