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path: root/drivers/regulator/twl-regulator.c
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Diffstat (limited to 'drivers/regulator/twl-regulator.c')
-rw-r--r--drivers/regulator/twl-regulator.c110
1 files changed, 51 insertions, 59 deletions
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 77a71a5c17c3..7eb986a40746 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -10,6 +10,8 @@
*/
#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
@@ -624,18 +626,9 @@ static int twlfixed_list_voltage(struct regulator_dev *rdev, unsigned index)
return info->min_mV * 1000;
}
-static int twlfixed_get_voltage(struct regulator_dev *rdev)
-{
- struct twlreg_info *info = rdev_get_drvdata(rdev);
-
- return info->min_mV * 1000;
-}
-
static struct regulator_ops twl4030fixed_ops = {
.list_voltage = twlfixed_list_voltage,
- .get_voltage = twlfixed_get_voltage,
-
.enable = twl4030reg_enable,
.disable = twl4030reg_disable,
.is_enabled = twl4030reg_is_enabled,
@@ -648,8 +641,6 @@ static struct regulator_ops twl4030fixed_ops = {
static struct regulator_ops twl6030fixed_ops = {
.list_voltage = twlfixed_list_voltage,
- .get_voltage = twlfixed_get_voltage,
-
.enable = twl6030reg_enable,
.disable = twl6030reg_disable,
.is_enabled = twl6030reg_is_enabled,
@@ -659,13 +650,6 @@ static struct regulator_ops twl6030fixed_ops = {
.get_status = twl6030reg_get_status,
};
-static struct regulator_ops twl6030_fixed_resource = {
- .enable = twl6030reg_enable,
- .disable = twl6030reg_disable,
- .is_enabled = twl6030reg_is_enabled,
- .get_status = twl6030reg_get_status,
-};
-
/*
* SMPS status and control
*/
@@ -757,37 +741,32 @@ static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
return voltage;
}
-static int
-twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
- unsigned int *selector)
+static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV)
{
- struct twlreg_info *info = rdev_get_drvdata(rdev);
- int vsel = 0;
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = 0;
switch (info->flags) {
case 0:
if (min_uV == 0)
vsel = 0;
else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
- int calc_uV;
vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
vsel++;
- calc_uV = twl6030smps_list_voltage(rdev, vsel);
- if (calc_uV > max_uV)
- return -EINVAL;
}
/* Values 1..57 for vsel are linear and can be calculated
* values 58..62 are non linear.
*/
- else if ((min_uV > 1900000) && (max_uV >= 2100000))
+ else if ((min_uV > 1900000) && (min_uV <= 2100000))
vsel = 62;
- else if ((min_uV > 1800000) && (max_uV >= 1900000))
+ else if ((min_uV > 1800000) && (min_uV <= 1900000))
vsel = 61;
- else if ((min_uV > 1500000) && (max_uV >= 1800000))
+ else if ((min_uV > 1500000) && (min_uV <= 1800000))
vsel = 60;
- else if ((min_uV > 1350000) && (max_uV >= 1500000))
+ else if ((min_uV > 1350000) && (min_uV <= 1500000))
vsel = 59;
- else if ((min_uV > 1300000) && (max_uV >= 1350000))
+ else if ((min_uV > 1300000) && (min_uV <= 1350000))
vsel = 58;
else
return -EINVAL;
@@ -796,25 +775,21 @@ twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
if (min_uV == 0)
vsel = 0;
else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
- int calc_uV;
vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
vsel++;
- calc_uV = twl6030smps_list_voltage(rdev, vsel);
- if (calc_uV > max_uV)
- return -EINVAL;
}
/* Values 1..57 for vsel are linear and can be calculated
* values 58..62 are non linear.
*/
- else if ((min_uV > 1900000) && (max_uV >= 2100000))
+ else if ((min_uV > 1900000) && (min_uV <= 2100000))
vsel = 62;
- else if ((min_uV > 1800000) && (max_uV >= 1900000))
+ else if ((min_uV > 1800000) && (min_uV <= 1900000))
vsel = 61;
- else if ((min_uV > 1350000) && (max_uV >= 1800000))
+ else if ((min_uV > 1350000) && (min_uV <= 1800000))
vsel = 60;
- else if ((min_uV > 1350000) && (max_uV >= 1500000))
+ else if ((min_uV > 1350000) && (min_uV <= 1500000))
vsel = 59;
- else if ((min_uV > 1300000) && (max_uV >= 1350000))
+ else if ((min_uV > 1300000) && (min_uV <= 1350000))
vsel = 58;
else
return -EINVAL;
@@ -830,17 +805,23 @@ twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
if (min_uV == 0) {
vsel = 0;
- } else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
+ } else if ((min_uV >= 2161000) && (min_uV <= 4321000)) {
vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
vsel++;
}
break;
}
- *selector = vsel;
+ return vsel;
+}
+
+static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
- vsel);
+ selector);
}
static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
@@ -852,8 +833,9 @@ static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
static struct regulator_ops twlsmps_ops = {
.list_voltage = twl6030smps_list_voltage,
+ .map_voltage = twl6030smps_map_voltage,
- .set_voltage = twl6030smps_set_voltage,
+ .set_voltage_sel = twl6030smps_set_voltage_sel,
.get_voltage_sel = twl6030smps_get_voltage_sel,
.enable = twl6030reg_enable,
@@ -876,7 +858,7 @@ static struct regulator_ops twlsmps_ops = {
0x0, TWL6030, twl6030fixed_ops)
#define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
-static struct twlreg_info TWL4030_INFO_##label = { \
+static const struct twlreg_info TWL4030_INFO_##label = { \
.base = offset, \
.id = num, \
.table_len = ARRAY_SIZE(label##_VSEL_table), \
@@ -894,7 +876,7 @@ static struct twlreg_info TWL4030_INFO_##label = { \
}
#define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
-static struct twlreg_info TWL4030_INFO_##label = { \
+static const struct twlreg_info TWL4030_INFO_##label = { \
.base = offset, \
.id = num, \
.remap = remap_conf, \
@@ -909,7 +891,7 @@ static struct twlreg_info TWL4030_INFO_##label = { \
}
#define TWL6030_ADJUSTABLE_SMPS(label) \
-static struct twlreg_info TWL6030_INFO_##label = { \
+static const struct twlreg_info TWL6030_INFO_##label = { \
.desc = { \
.name = #label, \
.id = TWL6030_REG_##label, \
@@ -920,7 +902,7 @@ static struct twlreg_info TWL6030_INFO_##label = { \
}
#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
-static struct twlreg_info TWL6030_INFO_##label = { \
+static const struct twlreg_info TWL6030_INFO_##label = { \
.base = offset, \
.min_mV = min_mVolts, \
.max_mV = max_mVolts, \
@@ -935,7 +917,7 @@ static struct twlreg_info TWL6030_INFO_##label = { \
}
#define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
-static struct twlreg_info TWL6025_INFO_##label = { \
+static const struct twlreg_info TWL6025_INFO_##label = { \
.base = offset, \
.min_mV = min_mVolts, \
.max_mV = max_mVolts, \
@@ -951,7 +933,7 @@ static struct twlreg_info TWL6025_INFO_##label = { \
#define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
family, operations) \
-static struct twlreg_info TWLFIXED_INFO_##label = { \
+static const struct twlreg_info TWLFIXED_INFO_##label = { \
.base = offset, \
.id = num, \
.min_mV = mVolts, \
@@ -981,7 +963,7 @@ static struct twlreg_info TWLRES_INFO_##label = { \
}
#define TWL6025_ADJUSTABLE_SMPS(label, offset) \
-static struct twlreg_info TWLSMPS_INFO_##label = { \
+static const struct twlreg_info TWLSMPS_INFO_##label = { \
.base = offset, \
.min_mV = 600, \
.max_mV = 2100, \
@@ -1138,6 +1120,7 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
{
int i, id;
struct twlreg_info *info;
+ const struct twlreg_info *template;
struct regulator_init_data *initdata;
struct regulation_constraints *c;
struct regulator_dev *rdev;
@@ -1147,17 +1130,17 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
match = of_match_device(twl_of_match, &pdev->dev);
if (match) {
- info = match->data;
- id = info->desc.id;
+ template = match->data;
+ id = template->desc.id;
initdata = of_get_regulator_init_data(&pdev->dev,
pdev->dev.of_node);
drvdata = NULL;
} else {
id = pdev->id;
initdata = pdev->dev.platform_data;
- for (i = 0, info = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
- info = twl_of_match[i].data;
- if (info && info->desc.id == id)
+ for (i = 0, template = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
+ template = twl_of_match[i].data;
+ if (template && template->desc.id == id)
break;
}
if (i == ARRAY_SIZE(twl_of_match))
@@ -1168,12 +1151,16 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
return -EINVAL;
}
- if (!info)
+ if (!template)
return -ENODEV;
if (!initdata)
return -EINVAL;
+ info = kmemdup(template, sizeof (*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
if (drvdata) {
/* copy the driver data into regulator data */
info->features = drvdata->features;
@@ -1234,6 +1221,7 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "can't register %s, %ld\n",
info->desc.name, PTR_ERR(rdev));
+ kfree(info);
return PTR_ERR(rdev);
}
platform_set_drvdata(pdev, rdev);
@@ -1255,7 +1243,11 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
static int __devexit twlreg_remove(struct platform_device *pdev)
{
- regulator_unregister(platform_get_drvdata(pdev));
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+ struct twlreg_info *info = rdev->reg_data;
+
+ regulator_unregister(rdev);
+ kfree(info);
return 0;
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-19 10:14:07 +0300