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authorYadwinder Singh Brar <yadi.brar@samsung.com>2013-06-24 16:50:56 +0530
committerMark Brown <broonie@linaro.org>2013-07-15 11:28:25 +0100
commit1e1598ed04d831f5bb42a197b4045e6780365217 (patch)
tree9463fea126c28024e09c6c5af276f254fb3a13df /drivers/regulator
parentad81f0545ef01ea651886dddac4bef6cec930092 (diff)
downloadop-kernel-dev-1e1598ed04d831f5bb42a197b4045e6780365217.zip
op-kernel-dev-1e1598ed04d831f5bb42a197b4045e6780365217.tar.gz
regulator: s2mps11: Implement set_voltage_time_sel() ops for bucks
Currently driver uses local struct s2mps11_info to store ramp rate for bucks whic its getting through platform data, so instead of using regulator constraints it should use s2mps11_info to calculate ramp delay. Signed-off-by: Yadwinder Singh Brar <yadi.brar@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/s2mps11.c53
1 files changed, 52 insertions, 1 deletions
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index 2f62564..a671eb6 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -53,6 +53,57 @@ static int get_ramp_delay(int ramp_delay)
return cnt;
}
+static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
+ unsigned int old_selector,
+ unsigned int new_selector)
+{
+ struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
+ unsigned int ramp_delay = 0;
+ int old_volt, new_volt;
+
+ switch (rdev->desc->id) {
+ case S2MPS11_BUCK2:
+ if (!s2mps11->buck2_ramp)
+ return 0;
+ ramp_delay = s2mps11->ramp_delay2;
+ break;
+ case S2MPS11_BUCK3:
+ if (!s2mps11->buck3_ramp)
+ return 0;
+ ramp_delay = s2mps11->ramp_delay34;
+ break;
+ case S2MPS11_BUCK4:
+ if (!s2mps11->buck4_ramp)
+ return 0;
+ ramp_delay = s2mps11->ramp_delay34;
+ break;
+ case S2MPS11_BUCK5:
+ ramp_delay = s2mps11->ramp_delay5;
+ break;
+ case S2MPS11_BUCK6:
+ if (!s2mps11->buck6_ramp)
+ return 0;
+ case S2MPS11_BUCK1:
+ ramp_delay = s2mps11->ramp_delay16;
+ break;
+ case S2MPS11_BUCK7:
+ case S2MPS11_BUCK8:
+ case S2MPS11_BUCK10:
+ ramp_delay = s2mps11->ramp_delay7810;
+ break;
+ case S2MPS11_BUCK9:
+ ramp_delay = s2mps11->ramp_delay9;
+ }
+
+ if (ramp_delay == 0)
+ ramp_delay = rdev->desc->ramp_delay;
+
+ old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
+ new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
+
+ return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
+}
+
static struct regulator_ops s2mps11_ldo_ops = {
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
@@ -72,7 +123,7 @@ static struct regulator_ops s2mps11_buck_ops = {
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
- .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
};
#define regulator_desc_ldo1(num) { \
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