drivers/input/keyboard/mtk-pmic-keys.c

Source file repositories/reference/linux-study-clean/drivers/input/keyboard/mtk-pmic-keys.c

File Facts

System
Linux kernel
Corpus path
drivers/input/keyboard/mtk-pmic-keys.c
Extension
.c
Size
11332 bytes
Lines
429
Domain
Driver Families
Bucket
drivers/input
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 mtk_pmic_keys_regs {
	u32 deb_reg;
	u32 deb_mask;
	u32 intsel_reg;
	u32 intsel_mask;
	u32 rst_en_mask;
};

#define MTK_PMIC_KEYS_REGS(_deb_reg, _deb_mask,		\
	_intsel_reg, _intsel_mask, _rst_mask)		\
{							\
	.deb_reg		= _deb_reg,		\
	.deb_mask		= _deb_mask,		\
	.intsel_reg		= _intsel_reg,		\
	.intsel_mask		= _intsel_mask,		\
	.rst_en_mask		= _rst_mask,		\
}

struct mtk_pmic_regs {
	const struct mtk_pmic_keys_regs keys_regs[MTK_PMIC_MAX_KEY_COUNT];
	u32 pmic_rst_reg;
	u32 rst_lprst_mask; /* Long-press reset timeout bitmask */
	bool key_release_irq;
};

static const struct mtk_pmic_regs mt6397_regs = {
	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6397_CHRSTATUS,
		0x8, MT6397_INT_RSV, 0x10, MTK_PMIC_PWRKEY_RST),
	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6397_OCSTATUS2,
		0x10, MT6397_INT_RSV, 0x8, MTK_PMIC_HOMEKEY_RST),
	.pmic_rst_reg = MT6397_TOP_RST_MISC,
	.rst_lprst_mask = MTK_PMIC_RST_DU_MASK,
};

static const struct mtk_pmic_regs mt6323_regs = {
	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6323_CHRSTATUS,
		0x2, MT6323_INT_MISC_CON, 0x10, MTK_PMIC_PWRKEY_RST),
	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6323_CHRSTATUS,
		0x4, MT6323_INT_MISC_CON, 0x8, MTK_PMIC_HOMEKEY_RST),
	.pmic_rst_reg = MT6323_TOP_RST_MISC,
	.rst_lprst_mask = MTK_PMIC_RST_DU_MASK,
};

static const struct mtk_pmic_regs mt6331_regs = {
	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6331_TOPSTATUS, 0x2,
				   MT6331_INT_MISC_CON, 0x4,
				   MTK_PMIC_MT6331_PWRKEY_RST),
	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6331_TOPSTATUS, 0x4,
				   MT6331_INT_MISC_CON, 0x2,
				   MTK_PMIC_MT6331_HOMEKEY_RST),
	.pmic_rst_reg = MT6331_TOP_RST_MISC,
	.rst_lprst_mask = MTK_PMIC_MT6331_RST_DU_MASK,
};

static const struct mtk_pmic_regs mt6357_regs = {
	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6357_TOPSTATUS,
				   0x2, MT6357_PSC_TOP_INT_CON0, 0x5,
				   MTK_PMIC_PWRKEY_RST),
	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6357_TOPSTATUS,
				   0x8, MT6357_PSC_TOP_INT_CON0, 0xa,
				   MTK_PMIC_HOMEKEY_INDEX),
	.pmic_rst_reg = MT6357_TOP_RST_MISC,
	.rst_lprst_mask = MTK_PMIC_RST_DU_MASK,
};

static const struct mtk_pmic_regs mt6358_regs = {
	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6358_TOPSTATUS,
				   0x2, MT6358_PSC_TOP_INT_CON0, 0x5,
				   MTK_PMIC_PWRKEY_RST),
	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6358_TOPSTATUS,
				   0x8, MT6358_PSC_TOP_INT_CON0, 0xa,
				   MTK_PMIC_HOMEKEY_RST),
	.pmic_rst_reg = MT6358_TOP_RST_MISC,
	.rst_lprst_mask = MTK_PMIC_RST_DU_MASK,
	.key_release_irq = true,
};

static const struct mtk_pmic_regs mt6359_regs = {
	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
		MTK_PMIC_KEYS_REGS(MT6359_TOPSTATUS,

Annotation

Implementation Notes