regulator: lp8788: Implement list_voltage for lp8788_ldo_voltage_fixed_ops

For fixed voltage, we can just set min_uV and use regulator_list_voltage_linear
for list_voltage callback. Regulator core will call list_voltage(rdev, 0) if
both get_voltage get_voltage_sel are not implemented. Thus we can also remove
lp8788_ldo_fixed_get_voltage() function.

Signed-off-by: Axel Lin <[e-mail]>
Acked-by: Milo Kim <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

drivers/regulator/lp8788-ldo.c

···
 	return ENABLE_TIME_USEC * val;
 }
 
-static int lp8788_ldo_fixed_get_voltage(struct regulator_dev *rdev)
-{
-	enum lp8788_ldo_id id = rdev_get_id(rdev);
-
-	switch (id) {
-	case ALDO2 ... ALDO5:
-		return 2850000;
-	case DLDO12:
-	case ALDO8 ... ALDO9:
-		return 2500000;
-	case ALDO10:
-		return 1100000;
-	default:
-		return -EINVAL;
-	}
-}
-
 static struct regulator_ops lp8788_ldo_voltage_table_ops = {
 	.list_voltage = regulator_list_voltage_table,
 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
···
 };
 
 static struct regulator_ops lp8788_ldo_voltage_fixed_ops = {
-	.get_voltage = lp8788_ldo_fixed_get_voltage,
+	.list_voltage = regulator_list_voltage_linear,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
 		.enable_mask = LP8788_EN_DLDO12_M,
+		.min_uV = 2500000,
 	},
 };
 
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
 		.enable_mask = LP8788_EN_ALDO2_M,
+		.min_uV = 2850000,
 	},
 	{
 		.name = "aldo3",
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
 		.enable_mask = LP8788_EN_ALDO3_M,
+		.min_uV = 2850000,
 	},
 	{
 		.name = "aldo4",
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_B,
 		.enable_mask = LP8788_EN_ALDO4_M,
+		.min_uV = 2850000,
 	},
 	{
 		.name = "aldo5",
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
 		.enable_mask = LP8788_EN_ALDO5_M,
+		.min_uV = 2850000,
 	},
 	{
 		.name = "aldo6",
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
 		.enable_mask = LP8788_EN_ALDO8_M,
+		.min_uV = 2500000,
 	},
 	{
 		.name = "aldo9",
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
 		.enable_mask = LP8788_EN_ALDO9_M,
+		.min_uV = 2500000,
 	},
 	{
 		.name = "aldo10",
···
 		.owner = THIS_MODULE,
 		.enable_reg = LP8788_EN_LDO_C,
 		.enable_mask = LP8788_EN_ALDO10_M,
+		.min_uV = 1100000,
 	},
 };