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Date: Tue, 27 Nov 2012 10:26:14 +0800
From: Axel Lin <axel.lin@...ics.com>
To: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc: David Dajun Chen <dchen@...semi.com>,
Ashish Jangam <ashish.jangam@...tcummins.com>,
Liam Girdwood <lrg@...com>, linux-kernel@...r.kernel.org
Subject: [RFC/RFT][PATCH 2/4] regulator: da9055: Use linear_min_sel and
regulator_[map|list]_voltage_linear
Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
drivers/regulator/da9055-regulator.c | 55 +++++-----------------------------
1 file changed, 8 insertions(+), 47 deletions(-)
diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
index db59ce7..a4b9cb8 100644
--- a/drivers/regulator/da9055-regulator.c
+++ b/drivers/regulator/da9055-regulator.c
@@ -57,7 +57,6 @@ struct da9055_volt_reg {
int reg_a;
int reg_b;
int sl_shift;
- int v_offset;
int v_mask;
int v_shift;
};
@@ -201,41 +200,6 @@ static int da9055_buck_set_current_limit(struct regulator_dev *rdev, int min_uA,
return -EINVAL;
}
-static int da9055_list_voltage(struct regulator_dev *rdev, unsigned selector)
-{
- struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
-
- if (selector >= rdev->desc->n_voltages)
- return -EINVAL;
-
- if (selector < info->volt.v_offset)
- return 0;
-
- selector -= info->volt.v_offset;
- return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
-}
-
-static int da9055_map_voltage(struct regulator_dev *rdev, int min_uV,
- int max_uV)
-{
- struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
- int sel, voltage;
-
- if (min_uV < rdev->desc->min_uV)
- min_uV = rdev->desc->min_uV;
-
- sel = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
- sel += info->volt.v_offset;
-
- voltage = da9055_list_voltage(rdev, sel);
- if (voltage < min_uV || voltage > max_uV)
- return -EINVAL;
-
- return sel;
-}
-
static int da9055_regulator_get_voltage_sel(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
@@ -264,10 +228,7 @@ static int da9055_regulator_get_voltage_sel(struct regulator_dev *rdev)
return ret;
sel = (ret & volt.v_mask);
- if (sel <= volt.v_offset)
- return 0;
- else
- return sel;
+ return sel;
}
static int da9055_regulator_set_voltage_sel(struct regulator_dev *rdev,
@@ -328,7 +289,7 @@ static int da9055_regulator_set_suspend_voltage(struct regulator_dev *rdev,
return ret;
}
- ret = da9055_map_voltage(rdev, uV, uV);
+ ret = regulator_map_voltage_linear(rdev, uV, uV);
if (ret < 0)
return ret;
@@ -371,8 +332,8 @@ static struct regulator_ops da9055_buck_ops = {
.get_voltage_sel = da9055_regulator_get_voltage_sel,
.set_voltage_sel = da9055_regulator_set_voltage_sel,
- .list_voltage = da9055_list_voltage,
- .map_voltage = da9055_map_voltage,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -389,8 +350,8 @@ static struct regulator_ops da9055_ldo_ops = {
.get_voltage_sel = da9055_regulator_get_voltage_sel,
.set_voltage_sel = da9055_regulator_set_voltage_sel,
- .list_voltage = da9055_list_voltage,
- .map_voltage = da9055_map_voltage,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -414,6 +375,7 @@ static struct regulator_ops da9055_ldo_ops = {
.enable_mask = 1, \
.min_uV = (min) * 1000,\
.uV_step = (step) * 1000,\
+ .linear_min_sel = (voffset),\
.owner = THIS_MODULE,\
},\
.conf = {\
@@ -425,7 +387,6 @@ static struct regulator_ops da9055_ldo_ops = {
.reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \
.reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \
.sl_shift = 7,\
- .v_offset = (voffset),\
.v_mask = (1 << (vbits)) - 1,\
.v_shift = (vbits),\
},\
@@ -443,6 +404,7 @@ static struct regulator_ops da9055_ldo_ops = {
.enable_mask = 1,\
.min_uV = (min) * 1000,\
.uV_step = (step) * 1000,\
+ .linear_min_sel = (voffset),\
.owner = THIS_MODULE,\
},\
.conf = {\
@@ -454,7 +416,6 @@ static struct regulator_ops da9055_ldo_ops = {
.reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \
.reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \
.sl_shift = 7,\
- .v_offset = (voffset),\
.v_mask = (1 << (vbits)) - 1,\
.v_shift = (vbits),\
},\
--
1.7.9.5
--
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