AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

regulator: Separate set_voltage for max8998 ldo and buck

Browse Source 
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Lukasz Majewski 2010-09-27 14:32:23 +02:00 committed by Samuel Ortiz
parent 8e52e279b2
commit 9d92492fb7
1 changed files with 40 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/regulator/max8998.c
View File

@ -297,7 +297,44 @@ static int max8998_get_voltage(struct regulator_dev *rdev)
return max8998_list_voltage(rdev, val);
}
static int max8998_set_voltage(struct regulator_dev *rdev,
static int max8998_set_voltage_ldo(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
struct i2c_client *i2c = max8998->iodev->i2c;
int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
const struct voltage_map_desc *desc;
int ldo = max8998_get_ldo(rdev);
int reg, shift = 0, mask, ret;
int i = 0;
if (ldo >= ARRAY_SIZE(ldo_voltage_map))
return -EINVAL;
desc = ldo_voltage_map[ldo];
if (desc == NULL)
return -EINVAL;
if (max_vol < desc->min || min_vol > desc->max)
return -EINVAL;
while (desc->min + desc->step*i < min_vol &&
desc->min + desc->step*i < desc->max)
i++;
if (desc->min + desc->step*i > max_vol)
return -EINVAL;
ret = max8998_get_voltage_register(rdev, &reg, &shift, &mask);
if (ret)
return ret;
ret = max8998_update_reg(i2c, reg, i<<shift, mask<<shift);
return ret;
}
static int max8998_set_voltage_buck(struct regulator_dev *rdev,
int min_uV, int max_uV)
{
struct max8998_data *max8998 = rdev_get_drvdata(rdev);
@ -359,7 +396,7 @@ static struct regulator_ops max8998_ldo_ops = {
.enable = max8998_ldo_enable,
.disable = max8998_ldo_disable,
.get_voltage = max8998_get_voltage,
.set_voltage = max8998_set_voltage,
.set_voltage = max8998_set_voltage_ldo,
.set_suspend_enable = max8998_ldo_enable,
.set_suspend_disable = max8998_ldo_disable,
};
@ -370,7 +407,7 @@ static struct regulator_ops max8998_buck_ops = {
.enable = max8998_ldo_enable,
.disable = max8998_ldo_disable,
.get_voltage = max8998_get_voltage,
.set_voltage = max8998_set_voltage,
.set_voltage = max8998_set_voltage_buck,
.set_suspend_enable = max8998_ldo_enable,
.set_suspend_disable = max8998_ldo_disable,
};