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Date: Tue, 15 May 2012 10:06:27 +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 set_voltage_sel and
map_voltage
Signed-off-by: Axel Lin <axel.lin@...il.com>
---
drivers/regulator/da903x.c | 110 +++++++++++++++++++++----------------------
1 files changed, 54 insertions(+), 56 deletions(-)
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index 3a0d080..6e78ef1 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -101,21 +101,14 @@ static inline int check_range(struct da903x_regulator_info *info,
}
/* DA9030/DA9034 common operations */
-static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *selector)
+static int da903x_set_ldo_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
- if (check_range(info, min_uV, max_uV)) {
- pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
- return -EINVAL;
- }
-
- val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
- *selector = val;
- val <<= info->vol_shift;
+ val = selector << info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
return da903x_update(da9034_dev, info->vol_reg, val, mask);
@@ -171,23 +164,15 @@ static int da903x_is_enabled(struct regulator_dev *rdev)
}
/* DA9030 specific operations */
-static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV,
- unsigned *selector)
+static int da9030_set_ldo1_15_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
- if (check_range(info, min_uV, max_uV)) {
- pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
- return -EINVAL;
- }
-
- val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
- *selector = val;
- val <<= info->vol_shift;
+ val = selector << info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
mask |= DA9030_LDO_UNLOCK_MASK;
@@ -200,14 +185,24 @@ static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
return da903x_update(da903x_dev, info->vol_reg, val, mask);
}
-static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV,
- unsigned *selector)
+static int da9030_set_ldo14_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da903x_dev = to_da903x_dev(rdev);
uint8_t val, mask;
- int thresh;
+
+ val = selector << info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ return da903x_update(da903x_dev, info->vol_reg, val, mask);
+}
+
+static int da9030_map_ldo14_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ int thresh, sel;
if (check_range(info, min_uV, max_uV)) {
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
@@ -216,17 +211,13 @@ static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
thresh = (info->max_uV + info->desc.min_uV) / 2;
if (min_uV < thresh) {
- val = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step);
- val |= 0x4;
+ sel = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step);
+ sel |= 0x4;
} else {
- val = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step);
+ sel = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step);
}
- *selector = val;
- val <<= info->vol_shift;
- mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
-
- return da903x_update(da903x_dev, info->vol_reg, val, mask);
+ return sel;
}
static int da9030_get_ldo14_voltage_sel(struct regulator_dev *rdev)
@@ -266,22 +257,15 @@ static int da9030_list_ldo14_voltage(struct regulator_dev *rdev,
}
/* DA9034 specific operations */
-static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *selector)
+static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
int ret;
- if (check_range(info, min_uV, max_uV)) {
- pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
- return -EINVAL;
- }
-
- val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
- *selector = val;
- val <<= info->vol_shift;
+ val = selector << info->vol_shift;
mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
@@ -293,25 +277,34 @@ static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
return ret;
}
-static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
- int min_uV, int max_uV, unsigned *selector)
+static int da9034_set_ldo12_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
{
struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
struct device *da9034_dev = to_da903x_dev(rdev);
uint8_t val, mask;
+ val = selector << info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ return da903x_update(da9034_dev, info->vol_reg, val, mask);
+}
+
+static int da9034_map_ldo12_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ int sel;
+
if (check_range(info, min_uV, max_uV)) {
pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
return -EINVAL;
}
- val = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
- val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val);
- *selector = val;
- val <<= info->vol_shift;
- mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ sel = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
+ sel = (sel >= 20) ? sel - 12 : ((sel > 7) ? 8 : sel);
- return da903x_update(da9034_dev, info->vol_reg, val, mask);
+ return sel;
}
static int da9034_get_ldo12_voltage_sel(struct regulator_dev *rdev)
@@ -349,9 +342,10 @@ static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
}
static struct regulator_ops da903x_regulator_ldo_ops = {
- .set_voltage = da903x_set_ldo_voltage,
+ .set_voltage_sel = da903x_set_ldo_voltage_sel,
.get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
@@ -359,9 +353,10 @@ 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,
+ .set_voltage_sel = da9030_set_ldo14_voltage_sel,
.get_voltage_sel = da9030_get_ldo14_voltage_sel,
.list_voltage = da9030_list_ldo14_voltage,
+ .map_voltage = da9030_map_ldo14_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
@@ -369,18 +364,20 @@ 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,
+ .set_voltage_sel = da9030_set_ldo1_15_voltage_sel,
.get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
};
static struct regulator_ops da9034_regulator_dvc_ops = {
- .set_voltage = da9034_set_dvc_voltage,
+ .set_voltage_sel = da9034_set_dvc_voltage_sel,
.get_voltage_sel = da903x_get_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
@@ -388,9 +385,10 @@ 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,
+ .set_voltage_sel = da9034_set_ldo12_voltage_sel,
.get_voltage_sel = da9034_get_ldo12_voltage_sel,
.list_voltage = da9034_list_ldo12_voltage,
+ .map_voltage = da9034_map_ldo12_voltage,
.enable = da903x_enable,
.disable = da903x_disable,
.is_enabled = da903x_is_enabled,
--
1.7.5.4
--
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