regulator: ab8500: Update voltage handling for fixed voltage regulators

There are a few over-lapping methods for voltage selection operating
in the AB8500 regulator driver currently. This patch removes unused,
unnecessary variables from the regulator_info structures and provides
voltage tables for those regulators which have fixed voltages.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/ab8500.c

@@ -140,6 +140,26 @@ static const int ldo_sdio_voltages[] = {
 	3050000,
 };
 
+static const unsigned int fixed_1200000_voltage[] = {
+	1200000,
+};
+
+static const unsigned int fixed_1800000_voltage[] = {
+	1800000,
+};
+
+static const unsigned int fixed_2000000_voltage[] = {
+	2000000,
+};
+
+static const unsigned int fixed_2050000_voltage[] = {
+	2050000,
+};
+
+static const unsigned int fixed_3300000_voltage[] = {
+	3300000,
+};
+
 static int ab8500_regulator_enable(struct regulator_dev *rdev)
 {
 	int ret;
@@ -403,7 +423,6 @@ static struct regulator_ops ab8500_regulator_mode_ops = {
 	.get_optimum_mode	= ab8500_regulator_get_optimum_mode,
 	.set_mode		= ab8500_regulator_set_mode,
 	.get_mode		= ab8500_regulator_get_mode,
-	.get_voltage_sel 	= ab8500_regulator_get_voltage_sel,
 	.list_voltage		= regulator_list_voltage_linear,
 };
 
@@ -411,7 +430,6 @@ static struct regulator_ops ab8500_regulator_ops = {
 	.enable			= ab8500_regulator_enable,
 	.disable		= ab8500_regulator_disable,
 	.is_enabled		= ab8500_regulator_is_enabled,
-	.get_voltage_sel 	= ab8500_regulator_get_voltage_sel,
 	.list_voltage		= regulator_list_voltage_linear,
 };
 
@@ -527,7 +545,7 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_TVOUT,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
-			.min_uV		= 2000000,
+			.volt_table	= fixed_2000000_voltage,
 			.enable_time	= 500,
 		},
 		.load_lp_uA		= 1000,
@@ -546,8 +564,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_AUDIO,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
-			.min_uV		= 2000000,
 			.enable_time	= 140,
+			.volt_table	= fixed_2000000_voltage,
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
@@ -562,8 +580,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC1,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
-			.min_uV		= 2050000,
 			.enable_time	= 500,
+			.volt_table	= fixed_2050000_voltage,
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
@@ -578,8 +596,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC2,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
-			.min_uV		= 2050000,
 			.enable_time	= 500,
+			.volt_table	= fixed_2050000_voltage,
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
@@ -594,8 +612,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_DMIC,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
-			.min_uV		= 1800000,
 			.enable_time	= 420,
+			.volt_table	= fixed_1800000_voltage,
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
@@ -614,8 +632,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANA,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
-			.min_uV		= 1200000,
 			.enable_time	= 140,
+			.volt_table	= fixed_1200000_voltage,
 		},
 		.load_lp_uA		= 1000,
 		.update_bank		= 0x04,
@@ -645,8 +663,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x09,
@@ -669,8 +685,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x09,
@@ -693,8 +707,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vaux3_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x0a,
@@ -717,8 +729,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		/* values for Vaux4Regu register */
 		.update_bank		= 0x04,
@@ -743,8 +753,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vaux56_voltages),
 		},
-		.min_uV			= 1050000,
-		.max_uV			= 2790000,
 		.load_lp_uA		= 2000,
 		/* values for CtrlVaux5 register */
 		.update_bank		= 0x01,
@@ -768,8 +776,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vaux56_voltages),
 		},
-		.min_uV			= 1050000,
-		.max_uV			= 2790000,
 		.load_lp_uA		= 2000,
 		/* values for CtrlVaux6 register */
 		.update_bank		= 0x01,
@@ -793,8 +799,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vintcore_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x80,
@@ -823,9 +827,9 @@ static struct ab8500_regulator_info
 			.id		= AB8505_LDO_ADC,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2000000_voltage,
 		},
 		.delay			= 10000,
-		.fixed_uV		= 2000000,
 		.load_lp_uA		= 1000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x80,
@@ -842,8 +846,8 @@ static struct ab8500_regulator_info
 			.id             = AB9540_LDO_USB,
 			.owner          = THIS_MODULE,
 			.n_voltages     = 1,
+			.volt_table	= fixed_3300000_voltage,
 		},
-		.fixed_uV               = 3300000,
 		.update_bank            = 0x03,
 		.update_reg             = 0x82,
 		.update_mask            = 0x03,
@@ -859,8 +863,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_AUDIO,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2000000_voltage,
 		},
-		.fixed_uV		= 2000000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x02,
@@ -874,8 +878,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC1,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2050000_voltage,
 		},
-		.fixed_uV		= 2050000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x08,
@@ -889,8 +893,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC2,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2050000_voltage,
 		},
-		.fixed_uV		= 2050000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x10,
@@ -904,8 +908,8 @@ static struct ab8500_regulator_info
 			.id		= AB8505_LDO_AUX8,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_1800000_voltage,
 		},
-		.fixed_uV		= 1800000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x04,
@@ -922,8 +926,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANA,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_1200000_voltage,
 		},
-		.fixed_uV		= 1200000,
 		.load_lp_uA		= 1000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x06,
@@ -952,8 +956,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x09,
@@ -976,8 +978,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x09,
@@ -1000,8 +1000,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vaux3_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x0a,
@@ -1024,8 +1022,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vauxn_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		/* values for Vaux4Regu register */
 		.update_bank		= 0x04,
@@ -1050,8 +1046,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages	= ARRAY_SIZE(ldo_vintcore_voltages),
 		},
-		.min_uV			= 1100000,
-		.max_uV			= 3300000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x80,
@@ -1080,9 +1074,9 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_TVOUT,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2000000_voltage,
 		},
 		.delay			= 10000,
-		.fixed_uV		= 2000000,
 		.load_lp_uA		= 1000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x80,
@@ -1099,8 +1093,8 @@ static struct ab8500_regulator_info
 			.id             = AB9540_LDO_USB,
 			.owner          = THIS_MODULE,
 			.n_voltages     = 1,
+			.volt_table	= fixed_3300000_voltage,
 		},
-		.fixed_uV               = 3300000,
 		.update_bank            = 0x03,
 		.update_reg             = 0x82,
 		.update_mask            = 0x03,
@@ -1116,8 +1110,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_AUDIO,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2000000_voltage,
 		},
-		.fixed_uV		= 2000000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x02,
@@ -1131,8 +1125,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC1,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2050000_voltage,
 		},
-		.fixed_uV		= 2050000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x08,
@@ -1146,8 +1140,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC2,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2050000_voltage,
 		},
-		.fixed_uV		= 2050000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x10,
@@ -1161,8 +1155,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_DMIC,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_1800000_voltage,
 		},
-		.fixed_uV		= 1800000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
 		.update_mask		= 0x04,
@@ -1180,8 +1174,8 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANA,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_1200000_voltage,
 		},
-		.fixed_uV		= 1200000,
 		.load_lp_uA		= 1000,
 		.update_bank		= 0x04,
 		.update_reg		= 0x06,
@@ -1346,6 +1340,7 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_AUDIO,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2000000_voltage,
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
@@ -1360,6 +1355,7 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC1,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2050000_voltage,
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
@@ -1374,6 +1370,7 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANAMIC2,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table	= fixed_2050000_voltage,
 		},
 		.update_bank		= 0x03,
 		.update_reg		= 0x83,
@@ -1406,6 +1403,7 @@ static struct ab8500_regulator_info
 			.id		= AB8500_LDO_ANA,
 			.owner		= THIS_MODULE,
 			.n_voltages	= 1,
+			.volt_table     = fixed_1200000_voltage,
 		},
 		.load_lp_uA		= 1000,
 		.update_bank		= 0x04,
@@ -1424,8 +1422,6 @@ static struct ab8500_regulator_info
 			.owner		= THIS_MODULE,
 			.n_voltages = ARRAY_SIZE(ldo_sdio_voltages),
 		},
-		.min_uV			= 1050000,
-		.max_uV			= 3050000,
 		.load_lp_uA		= 5000,
 		.update_bank		= 0x03,
 		.update_reg		= 0x88,