Hi Chen,

what I would ask you is to be consistent with the naming, if your
driver is called mtk-pmic, then all your functions and global
variables should be named accordingly as mtk_pmic or MTK_PMIC.
Please check in between the lines for real examples:

+#define PWRKEY_RST_EN_MASK	0x1
+#define PWRKEY_RST_EN_SHIFT	6
+#define HOMEKEY_RST_EN_MASK	0x1
+#define HOMEKEY_RST_EN_SHIFT	5
+#define RST_DU_MASK		0x3
+#define RST_DU_SHIFT		8
+
+#define PMIC_PWRKEY_INDEX	0
+#define PMIC_HOMEKEY_INDEX	1
+#define PMIC_MAX_KEY_COUNT	2

#define MTK_PMIC_*

+struct pmic_keys_regs {

struct mtk_pmic_keys_regs

+	u32 deb_reg;
+	u32 deb_mask;
+	u32 intsel_reg;
+	u32 intsel_mask;
+};
+
+#define PMIC_KEYS_REGS(_deb_reg, _deb_mask, _intsel_reg, _intsel_mask)	\

MTK_PMIC_KEYS_REGS

+{									\
+	.deb_reg		= _deb_reg,				\
+	.deb_mask		= _deb_mask,				\
+	.intsel_reg		= _intsel_reg,				\
+	.intsel_mask		= _intsel_mask,				\
+}
+
+struct pmic_regs {

mtk_pmic_regs

and so on... you got the point.

Andi