regulator: pbias: Convert to use regmap helper functions

This patch converts this driver to use the regmap helper functions provided by
regulator core.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
index d89a1d8..6d38be3 100644 (file)
--- a/drivers/regulator/pbias-regulator.c
+++ b/drivers/regulator/pbias-regulator.c
@@ -38,66 +38,24 @@ struct pbias_reg_info {
 struct pbias_regulator_data {
        struct regulator_desc desc;
        void __iomem *pbias_addr;
-       unsigned int pbias_reg;
        struct regulator_dev *dev;
        struct regmap *syscon;
        const struct pbias_reg_info *info;
        int voltage;
 };
 
-static int pbias_regulator_set_voltage(struct regulator_dev *dev,
-                       int min_uV, int max_uV, unsigned *selector)
-{
-       struct pbias_regulator_data *data = rdev_get_drvdata(dev);
-       const struct pbias_reg_info *info = data->info;
-       int ret, vmode;
-
-       if (min_uV <= 1800000)
-               vmode = 0;
-       else if (min_uV > 1800000)
-               vmode = info->vmode;
-
-       ret = regmap_update_bits(data->syscon, data->pbias_reg,
-                                               info->vmode, vmode);
-
-       return ret;
-}
-
-static int pbias_regulator_get_voltage(struct regulator_dev *rdev)
-{
-       struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
-       const struct pbias_reg_info *info = data->info;
-       int value, voltage;
-
-       regmap_read(data->syscon, data->pbias_reg, &value);
-       value &= info->vmode;
-
-       voltage = value ? 3000000 : 1800000;
-
-       return voltage;
-}
+static const unsigned int pbias_volt_table[] = {
+       1800000,
+       3000000
+};
 
 static int pbias_regulator_enable(struct regulator_dev *rdev)
 {
        struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
        const struct pbias_reg_info *info = data->info;
-       int ret;
-
-       ret = regmap_update_bits(data->syscon, data->pbias_reg,
-                                       info->enable_mask, info->enable);
-
-       return ret;
-}
-
-static int pbias_regulator_disable(struct regulator_dev *rdev)
-{
-       struct pbias_regulator_data *data = rdev_get_drvdata(rdev);
-       const struct pbias_reg_info *info = data->info;
-       int ret;
 
-       ret = regmap_update_bits(data->syscon, data->pbias_reg,
-                                               info->enable_mask, 0);
-       return ret;
+       return regmap_update_bits(data->syscon, rdev->desc->enable_reg,
+                                 info->enable_mask, info->enable);
 }
 
 static int pbias_regulator_is_enable(struct regulator_dev *rdev)
@@ -106,17 +64,18 @@ static int pbias_regulator_is_enable(struct regulator_dev *rdev)
        const struct pbias_reg_info *info = data->info;
        int value;
 
-       regmap_read(data->syscon, data->pbias_reg, &value);
+       regmap_read(data->syscon, rdev->desc->enable_reg, &value);
 
        return (value & info->enable_mask) == info->enable;
 }
 
 static struct regulator_ops pbias_regulator_voltage_ops = {
-       .set_voltage    = pbias_regulator_set_voltage,
-       .get_voltage    = pbias_regulator_get_voltage,
-       .enable         = pbias_regulator_enable,
-       .disable        = pbias_regulator_disable,
-       .is_enabled     = pbias_regulator_is_enable,
+       .list_voltage = regulator_list_voltage_table,
+       .get_voltage_sel = regulator_get_voltage_sel_regmap,
+       .set_voltage_sel = regulator_set_voltage_sel_regmap,
+       .enable = pbias_regulator_enable,
+       .disable = regulator_disable_regmap,
+       .is_enabled = pbias_regulator_is_enable,
 };
 
 static const struct pbias_reg_info pbias_mmc_omap2430 = {
@@ -192,6 +151,7 @@ static int pbias_regulator_probe(struct platform_device *pdev)
        if (IS_ERR(syscon))
                return PTR_ERR(syscon);
 
+       cfg.regmap = syscon;
        cfg.dev = &pdev->dev;
 
        for (idx = 0; idx < PBIAS_NUM_REGS && data_idx < count; idx++) {
@@ -207,15 +167,19 @@ static int pbias_regulator_probe(struct platform_device *pdev)
                if (!res)
                        return -EINVAL;
 
-               drvdata[data_idx].pbias_reg = res->start;
                drvdata[data_idx].syscon = syscon;
                drvdata[data_idx].info = info;
                drvdata[data_idx].desc.name = info->name;
                drvdata[data_idx].desc.owner = THIS_MODULE;
                drvdata[data_idx].desc.type = REGULATOR_VOLTAGE;
                drvdata[data_idx].desc.ops = &pbias_regulator_voltage_ops;
+               drvdata[data_idx].desc.volt_table = pbias_volt_table;
                drvdata[data_idx].desc.n_voltages = 2;
                drvdata[data_idx].desc.enable_time = info->enable_time;
+               drvdata[data_idx].desc.vsel_reg = res->start;
+               drvdata[data_idx].desc.vsel_mask = info->vmode;
+               drvdata[data_idx].desc.enable_reg = res->start;
+               drvdata[data_idx].desc.enable_mask = info->enable_mask;
 
                cfg.init_data = pbias_matches[idx].init_data;
                cfg.driver_data = &drvdata[data_idx];