regulator: s5m8767: Convert to regulator_list_voltage_linear

In current code, .list_voltage and .set_voltage_sel callbacks for BUCK7 and
BUCK8 return -EINVAL.

This patch adds s5m8767_buck78_ops for BUCK7 and BUCK8 which does not set
.list_voltage, .get_voltage_sel and .set_voltage_sel. ( This has the same
effect of returning -EINVAL in the callbacks)

Then for all the users of s5m8767_list_voltage, we don't need to worry about
the case reg_voltage_map[reg_id] is NULL.
So we can convert s5m8767_list_voltage to regulator_list_voltage_linear.

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

diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 533bde6..1ad9c3c 100644 (file)
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -121,27 +121,6 @@ static const struct s5m_voltage_desc *reg_voltage_map[] = {
        [S5M8767_BUCK9] = &buck_voltage_val3,
 };
 
-static int s5m8767_list_voltage(struct regulator_dev *rdev,
-                               unsigned int selector)
-{
-       const struct s5m_voltage_desc *desc;
-       int reg_id = rdev_get_id(rdev);
-       int val;
-
-       if (reg_id >= ARRAY_SIZE(reg_voltage_map) || reg_id < 0)
-               return -EINVAL;
-
-       desc = reg_voltage_map[reg_id];
-       if (desc == NULL)
-               return -EINVAL;
-
-       val = desc->min + desc->step * selector;
-       if (val > desc->max)
-               return -EINVAL;
-
-       return val;
-}
-
 static unsigned int s5m8767_opmode_reg[][4] = {
        /* {OFF, ON, LOWPOWER, SUSPEND} */
        /* LDO1 ... LDO28 */
@@ -449,7 +428,7 @@ static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev,
 }
 
 static struct regulator_ops s5m8767_ops = {
-       .list_voltage           = s5m8767_list_voltage,
+       .list_voltage           = regulator_list_voltage_linear,
        .is_enabled             = s5m8767_reg_is_enabled,
        .enable                 = s5m8767_reg_enable,
        .disable                = s5m8767_reg_disable,
@@ -458,6 +437,12 @@ static struct regulator_ops s5m8767_ops = {
        .set_voltage_time_sel   = s5m8767_set_voltage_time_sel,
 };
 
+static struct regulator_ops s5m8767_buck78_ops = {
+       .is_enabled             = s5m8767_reg_is_enabled,
+       .enable                 = s5m8767_reg_enable,
+       .disable                = s5m8767_reg_disable,
+};
+
 #define s5m8767_regulator_desc(_name) {                \
        .name           = #_name,               \
        .id             = S5M8767_##_name,      \
@@ -466,6 +451,14 @@ static struct regulator_ops s5m8767_ops = {
        .owner          = THIS_MODULE,          \
 }
 
+#define s5m8767_regulator_buck78_desc(_name) { \
+       .name           = #_name,               \
+       .id             = S5M8767_##_name,      \
+       .ops            = &s5m8767_buck78_ops,  \
+       .type           = REGULATOR_VOLTAGE,    \
+       .owner          = THIS_MODULE,          \
+}
+
 static struct regulator_desc regulators[] = {
        s5m8767_regulator_desc(LDO1),
        s5m8767_regulator_desc(LDO2),
@@ -501,8 +494,8 @@ static struct regulator_desc regulators[] = {
        s5m8767_regulator_desc(BUCK4),
        s5m8767_regulator_desc(BUCK5),
        s5m8767_regulator_desc(BUCK6),
-       s5m8767_regulator_desc(BUCK7),
-       s5m8767_regulator_desc(BUCK8),
+       s5m8767_regulator_buck78_desc(BUCK7),
+       s5m8767_regulator_buck78_desc(BUCK8),
        s5m8767_regulator_desc(BUCK9),
 };
 
@@ -751,9 +744,12 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
                int id = pdata->regulators[i].id;
 
                desc = reg_voltage_map[id];
-               if (desc)
+               if (desc) {
                        regulators[id].n_voltages =
                                (desc->max - desc->min) / desc->step + 1;
+                       regulators[id].min_uV = desc->min;
+                       regulators[id].uV_step = desc->step;
+               }
 
                config.dev = s5m8767->dev;
                config.init_data = pdata->regulators[i].initdata;