regulator: tps6524x: Convert to regulator_list_voltage_table()

This patch adds fixed_5000000_voltage table for fixed voltage,
so we can convert regulator_ops to regulator_list_voltage_table.

We can differentiate fixed voltage by checking rdev->desc->n_voltages == 1,
thus remove the FIXED_VOLTAGE flag usage.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 19 insertions, 33 deletions

diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c
index 1b299aacf22f..48e37bd95a27 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -111,7 +111,6 @@
 #define N_REGULATORS            (N_DCDC + N_LDO + N_SWITCH)
 
 #define FIXED_ILIMSEL           BIT(0)
-#define FIXED_VOLTAGE           BIT(1)
 
 #define CMD_READ(reg)           ((reg) << 6)
 #define CMD_WRITE(reg)          (BIT(5) | (reg) << 6)
@@ -129,8 +128,7 @@ struct field {
 struct supply_info {
         const char      *name;
         int             n_voltages;
-        const int       *voltages;
-        int             fixed_voltage;
+        const unsigned int *voltages;
         int             n_ilimsels;
         const int       *ilimsels;
         int             fixed_ilimsel;
@@ -307,7 +305,7 @@ static int write_field(struct tps6524x *hw, const struct field *field,
                                     val << field->shift);
 }
 
-static const int dcdc1_voltages[] = {
+static const unsigned int dcdc1_voltages[] = {
          800000,  825000,  850000,  875000,
          900000,  925000,  950000,  975000,
         1000000, 1025000, 1050000, 1075000,
@@ -318,7 +316,7 @@ static const int dcdc1_voltages[] = {
         1500000, 1525000, 1550000, 1575000,
 };
 
-static const int dcdc2_voltages[] = {
+static const unsigned int dcdc2_voltages[] = {
         1400000, 1450000, 1500000, 1550000,
         1600000, 1650000, 1700000, 1750000,
         1800000, 1850000, 1900000, 1950000,
@@ -329,7 +327,7 @@ static const int dcdc2_voltages[] = {
         2800000, 2850000, 2900000, 2950000,
 };
 
-static const int dcdc3_voltages[] = {
+static const unsigned int dcdc3_voltages[] = {
         2400000, 2450000, 2500000, 2550000, 2600000,
         2650000, 2700000, 2750000, 2800000, 2850000,
         2900000, 2950000, 3000000, 3050000, 3100000,
@@ -337,20 +335,24 @@ static const int dcdc3_voltages[] = {
         3400000, 3450000, 3500000, 3550000, 3600000,
 };
 
-static const int ldo1_voltages[] = {
+static const unsigned int ldo1_voltages[] = {
         4300000, 4350000, 4400000, 4450000,
         4500000, 4550000, 4600000, 4650000,
         4700000, 4750000, 4800000, 4850000,
         4900000, 4950000, 5000000, 5050000,
 };
 
-static const int ldo2_voltages[] = {
+static const unsigned int ldo2_voltages[] = {
         1100000, 1150000, 1200000, 1250000,
         1300000, 1700000, 1750000, 1800000,
         1850000, 1900000, 3150000, 3200000,
         3250000, 3300000, 3350000, 3400000,
 };
 
+static const unsigned int fixed_5000000_voltage[] = {
+        5000000
+};
+
 static const int ldo_ilimsel[] = {
         400000, 1500000
 };
@@ -424,8 +426,8 @@ static const struct supply_info supply_info[N_REGULATORS] = {
         },
         {
                 .name           = "USB",
-                .flags          = FIXED_VOLTAGE,
-                .fixed_voltage  = 5000000,
+                .n_voltages     = ARRAY_SIZE(fixed_5000000_voltage),
+                .voltages       = fixed_5000000_voltage,
                 .n_ilimsels     = ARRAY_SIZE(usb_ilimsel),
                 .ilimsels       = usb_ilimsel,
                 .enable         = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
@@ -435,29 +437,15 @@ static const struct supply_info supply_info[N_REGULATORS] = {
         },
         {
                 .name           = "LCD",
-                .flags          = FIXED_VOLTAGE | FIXED_ILIMSEL,
-                .fixed_voltage  = 5000000,
+                .n_voltages     = ARRAY_SIZE(fixed_5000000_voltage),
+                .voltages       = fixed_5000000_voltage,
+                .flags          = FIXED_ILIMSEL,
                 .fixed_ilimsel  =  400000,
                 .enable         = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
                                              BLOCK_LCD_SHIFT),
         },
 };
 
-static int list_voltage(struct regulator_dev *rdev, unsigned selector)
-{
-        const struct supply_info *info;
-        struct tps6524x *hw;
-
-        hw      = rdev_get_drvdata(rdev);
-        info    = &supply_info[rdev_get_id(rdev)];
-
-        if (info->flags & FIXED_VOLTAGE)
-                return selector ? -EINVAL : info->fixed_voltage;
-
-        return ((selector < info->n_voltages) ?
-                info->voltages[selector] : -EINVAL);
-}
-
 static int set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
 {
         const struct supply_info *info;
@@ -466,7 +454,7 @@ static int set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
         hw      = rdev_get_drvdata(rdev);
         info    = &supply_info[rdev_get_id(rdev)];
 
-        if (info->flags & FIXED_VOLTAGE)
+        if (rdev->desc->n_voltages == 1)
                 return -EINVAL;
 
         return write_field(hw, &info->voltage, selector);
@@ -481,7 +469,7 @@ static int get_voltage_sel(struct regulator_dev *rdev)
         hw      = rdev_get_drvdata(rdev);
         info    = &supply_info[rdev_get_id(rdev)];
 
-        if (info->flags & FIXED_VOLTAGE)
+        if (rdev->desc->n_voltages == 1)
                 return 0;
 
         ret = read_field(hw, &info->voltage);
@@ -577,7 +565,7 @@ static struct regulator_ops regulator_ops = {
         .disable                = disable_supply,
         .get_voltage_sel        = get_voltage_sel,
         .set_voltage_sel        = set_voltage_sel,
-        .list_voltage           = list_voltage,
+        .list_voltage           = regulator_list_voltage_table,
         .set_current_limit      = set_current_limit,
         .get_current_limit      = get_current_limit,
 };
@@ -629,13 +617,11 @@ static int __devinit pmic_probe(struct spi_device *spi)
                 hw->desc[i].name        = info->name;
                 hw->desc[i].id          = i;
                 hw->desc[i].n_voltages  = info->n_voltages;
+                hw->desc[i].volt_table  = info->voltages;
                 hw->desc[i].ops         = &regulator_ops;
                 hw->desc[i].type        = REGULATOR_VOLTAGE;
                 hw->desc[i].owner       = THIS_MODULE;
 
-                if (info->flags & FIXED_VOLTAGE)
-                        hw->desc[i].n_voltages = 1;
-
                 config.dev = dev;
                 config.init_data = init_data;
                 config.driver_data = hw;