drivers/mfd/sun6i-prcm.c
Source file repositories/reference/linux-study-clean/drivers/mfd/sun6i-prcm.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/mfd/sun6i-prcm.c- Extension
.c- Size
- 4215 bytes
- Lines
- 165
- Domain
- Driver Families
- Bucket
- drivers/mfd
- Inferred role
- Driver Families: implementation source
- Status
- source 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.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/mfd/core.hlinux/init.hlinux/of.h
Detected Declarations
struct prcm_datafunction sun6i_prcm_probe
Annotated Snippet
struct prcm_data {
int nsubdevs;
const struct mfd_cell *subdevs;
};
static const struct resource sun6i_a31_ar100_clk_res[] = {
DEFINE_RES_MEM(0x0, 4)
};
static const struct resource sun6i_a31_apb0_clk_res[] = {
DEFINE_RES_MEM(0xc, 4)
};
static const struct resource sun6i_a31_apb0_gates_clk_res[] = {
DEFINE_RES_MEM(0x28, 4)
};
static const struct resource sun6i_a31_ir_clk_res[] = {
DEFINE_RES_MEM(0x54, 4)
};
static const struct resource sun6i_a31_apb0_rstc_res[] = {
DEFINE_RES_MEM(0xb0, 4)
};
static const struct resource sun8i_codec_analog_res[] = {
DEFINE_RES_MEM(SUN8I_CODEC_ANALOG_BASE, SUN8I_CODEC_ANALOG_SIZE),
};
static const struct mfd_cell sun6i_a31_prcm_subdevs[] = {
{
.name = "sun6i-a31-ar100-clk",
.of_compatible = "allwinner,sun6i-a31-ar100-clk",
.num_resources = ARRAY_SIZE(sun6i_a31_ar100_clk_res),
.resources = sun6i_a31_ar100_clk_res,
},
{
.name = "sun6i-a31-apb0-clk",
.of_compatible = "allwinner,sun6i-a31-apb0-clk",
.num_resources = ARRAY_SIZE(sun6i_a31_apb0_clk_res),
.resources = sun6i_a31_apb0_clk_res,
},
{
.name = "sun6i-a31-apb0-gates-clk",
.of_compatible = "allwinner,sun6i-a31-apb0-gates-clk",
.num_resources = ARRAY_SIZE(sun6i_a31_apb0_gates_clk_res),
.resources = sun6i_a31_apb0_gates_clk_res,
},
{
.name = "sun6i-a31-ir-clk",
.of_compatible = "allwinner,sun4i-a10-mod0-clk",
.num_resources = ARRAY_SIZE(sun6i_a31_ir_clk_res),
.resources = sun6i_a31_ir_clk_res,
},
{
.name = "sun6i-a31-apb0-clock-reset",
.of_compatible = "allwinner,sun6i-a31-clock-reset",
.num_resources = ARRAY_SIZE(sun6i_a31_apb0_rstc_res),
.resources = sun6i_a31_apb0_rstc_res,
},
};
static const struct mfd_cell sun8i_a23_prcm_subdevs[] = {
{
.name = "sun8i-a23-apb0-clk",
.of_compatible = "allwinner,sun8i-a23-apb0-clk",
.num_resources = ARRAY_SIZE(sun6i_a31_apb0_clk_res),
.resources = sun6i_a31_apb0_clk_res,
},
{
.name = "sun6i-a31-apb0-gates-clk",
.of_compatible = "allwinner,sun8i-a23-apb0-gates-clk",
.num_resources = ARRAY_SIZE(sun6i_a31_apb0_gates_clk_res),
.resources = sun6i_a31_apb0_gates_clk_res,
},
{
.name = "sun6i-a31-apb0-clock-reset",
.of_compatible = "allwinner,sun6i-a31-clock-reset",
.num_resources = ARRAY_SIZE(sun6i_a31_apb0_rstc_res),
.resources = sun6i_a31_apb0_rstc_res,
},
{
.name = "sun8i-codec-analog",
.of_compatible = "allwinner,sun8i-a23-codec-analog",
.num_resources = ARRAY_SIZE(sun8i_codec_analog_res),
.resources = sun8i_codec_analog_res,
},
};
static const struct prcm_data sun6i_a31_prcm_data = {
Annotation
- Immediate include surface: `linux/mfd/core.h`, `linux/init.h`, `linux/of.h`.
- Detected declarations: `struct prcm_data`, `function sun6i_prcm_probe`.
- Atlas domain: Driver Families / drivers/mfd.
- Implementation status: source 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.