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.

Dependency Surface

Detected Declarations

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

Implementation Notes