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Date: Tue, 08 May 2012 19:47:47 +0800
From: Axel Lin <axel.lin@...il.com>
To: linux-kernel@...r.kernel.org
Cc: Eric Miao <eric.y.miao@...il.com>,
Mike Rapoport <mike@...pulab.co.il>,
Liam Girdwood <lrg@...com>,
Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH RFT 2/2] regulator: da903x: Convert to get_voltage_sel
Signed-off-by: Axel Lin <axel.lin@...il.com>
---
drivers/regulator/da903x.c | 48 +++++++++++++++++++++----------------------
1 files changed, 23 insertions(+), 25 deletions(-)
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index a9c4590..c75e7b7 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -88,10 +88,6 @@ struct da903x_regulator_info {
int enable_bit;
};
-static int da9034_ldo12_data[] = { 1700, 1750, 1800, 1850, 1900, 1950,
- 2000, 2050, 2700, 2750, 2800, 2850,
- 2900, 2950, 3000, 3050 };
-
static inline struct device *to_da903x_dev(struct regulator_dev *rdev)
{
return rdev_get_dev(rdev)->parent->parent;
@@ -127,7 +123,7 @@ static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
return da903x_update(da9034_dev, info->vol_reg, val, mask);
}
-static int da903x_get_voltage(struct regulator_dev *rdev)
+static int da903x_get_voltage_sel(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
@@ -141,7 +137,7 @@ static int da903x_get_voltage(struct regulator_dev *rdev)
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val = (val & mask) >> info->vol_shift;
- return info->min_uV + info->step_uV * val;
+ return val;
}
static int da903x_enable(struct regulator_dev *rdev)
@@ -246,7 +242,7 @@ static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
return da903x_update(da903x_dev, info->vol_reg, val, mask);
}
-static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
+static int da9030_get_ldo14_voltage_sel(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da903x_dev = to_da903x_dev(rdev);
@@ -260,11 +256,7 @@ static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val = (val & mask) >> info->vol_shift;
- if (val & 0x4)
- return info->min_uV + info->step_uV * (3 - (val & ~0x4));
- else
- return (info->max_uV + info->min_uV) / 2 +
- info->step_uV * (val & ~0x4);
+ return val;
}
static int da9030_list_ldo14_voltage(struct regulator_dev *rdev,
@@ -334,7 +326,7 @@ static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
return da903x_update(da9034_dev, info->vol_reg, val, mask);
}
-static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
+static int da9034_get_ldo12_voltage_sel(struct regulator_dev *rdev)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
@@ -348,23 +340,29 @@ static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val = (val & mask) >> info->vol_shift;
- if (val >= 8)
- return 2700000 + info->step_uV * (val - 8);
-
- return info->min_uV + info->step_uV * val;
+ return val;
}
static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
unsigned selector)
{
- if (selector >= ARRAY_SIZE(da9034_ldo12_data))
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ int volt;
+
+ if (selector >= 8)
+ volt = 2700000 + info->step_uV * (selector - 8);
+ else
+ volt = info->min_uV + info->step_uV * selector;
+
+ if (volt > info->max_uV)
return -EINVAL;
- return da9034_ldo12_data[selector] * 1000;
+
+ return volt;
}
static struct regulator_ops da903x_regulator_ldo_ops = {
.set_voltage = da903x_set_ldo_voltage,
- .get_voltage = da903x_get_voltage,
+ .get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = da903x_list_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
@@ -374,7 +372,7 @@ static struct regulator_ops da903x_regulator_ldo_ops = {
/* NOTE: this is dedicated for the insane DA9030 LDO14 */
static struct regulator_ops da9030_regulator_ldo14_ops = {
.set_voltage = da9030_set_ldo14_voltage,
- .get_voltage = da9030_get_ldo14_voltage,
+ .get_voltage_sel = da9030_get_ldo14_voltage_sel,
.list_voltage = da9030_list_ldo14_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
@@ -384,7 +382,7 @@ static struct regulator_ops da9030_regulator_ldo14_ops = {
/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */
static struct regulator_ops da9030_regulator_ldo1_15_ops = {
.set_voltage = da9030_set_ldo1_15_voltage,
- .get_voltage = da903x_get_voltage,
+ .get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = da903x_list_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
@@ -393,7 +391,7 @@ static struct regulator_ops da9030_regulator_ldo1_15_ops = {
static struct regulator_ops da9034_regulator_dvc_ops = {
.set_voltage = da9034_set_dvc_voltage,
- .get_voltage = da903x_get_voltage,
+ .get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = da903x_list_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
@@ -403,7 +401,7 @@ static struct regulator_ops da9034_regulator_dvc_ops = {
/* NOTE: this is dedicated for the insane LDO12 */
static struct regulator_ops da9034_regulator_ldo12_ops = {
.set_voltage = da9034_set_ldo12_voltage,
- .get_voltage = da9034_get_ldo12_voltage,
+ .get_voltage_sel = da9034_get_ldo12_voltage_sel,
.list_voltage = da9034_list_ldo12_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
@@ -546,7 +544,7 @@ static int __devinit da903x_regulator_probe(struct platform_device *pdev)
/* Workaround for the weird LDO12 voltage setting */
if (ri->desc.id == DA9034_ID_LDO12) {
ri->desc.ops = &da9034_regulator_ldo12_ops;
- ri->desc.n_voltages = ARRAY_SIZE(da9034_ldo12_data);
+ ri->desc.n_voltages = 16;
}
if (ri->desc.id == DA9030_ID_LDO14)
--
1.7.5.4
--
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