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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-12-27 18:44:11 +0400
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-12-27 18:44:11 +0400
commita44dca1717ce2c2381339e21c07d1731a63a7888 (patch)
tree3d0b3bd26492f9fa1f1f1c1ad838315b266da7c1 /drivers/regulator/max1586.c
parent30ebc5e44d057a1619ad63fe32c8c1670c37c4b8 (diff)
parenta49f0d1ea3ec94fc7cf33a7c36a16343b74bd565 (diff)
downloadlinux-a44dca1717ce2c2381339e21c07d1731a63a7888.tar.xz
Merge tag 'v3.8-rc1' into staging/for_v3.9
Linux 3.8-rc1 * tag 'v3.8-rc1': (10696 commits) Linux 3.8-rc1 Revert "nfsd: warn on odd reply state in nfsd_vfs_read" ARM: dts: fix duplicated build target and alphabetical sort out for exynos dm stripe: add WRITE SAME support dm: remove map_info dm snapshot: do not use map_context dm thin: dont use map_context dm raid1: dont use map_context dm flakey: dont use map_context dm raid1: rename read_record to bio_record dm: move target request nr to dm_target_io dm snapshot: use per_bio_data dm verity: use per_bio_data dm raid1: use per_bio_data dm: introduce per_bio_data dm kcopyd: add WRITE SAME support to dm_kcopyd_zero dm linear: add WRITE SAME support dm: add WRITE SAME support dm: prepare to support WRITE SAME dm ioctl: use kmalloc if possible ... Conflicts: MAINTAINERS
Diffstat (limited to 'drivers/regulator/max1586.c')
-rw-r--r--drivers/regulator/max1586.c50
1 files changed, 44 insertions, 6 deletions
diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index f67af3c1b963..8c5a54f541b5 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -44,6 +44,9 @@ struct max1586_data {
unsigned int min_uV;
unsigned int max_uV;
+ unsigned int v3_curr_sel;
+ unsigned int v6_curr_sel;
+
struct regulator_dev *rdev[0];
};
@@ -63,31 +66,60 @@ static int v6_voltages_uv[] = { 1, 1800000, 2500000, 3000000 };
* R24 and R25=100kOhm as described in the data sheet.
* The gain is approximately: 1 + R24/R25 + R24/185.5kOhm
*/
+static int max1586_v3_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct max1586_data *max1586 = rdev_get_drvdata(rdev);
+
+ return max1586->v3_curr_sel;
+}
+
static int max1586_v3_set_voltage_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct max1586_data *max1586 = rdev_get_drvdata(rdev);
struct i2c_client *client = max1586->client;
+ int ret;
u8 v3_prog;
dev_dbg(&client->dev, "changing voltage v3 to %dmv\n",
regulator_list_voltage_linear(rdev, selector) / 1000);
v3_prog = I2C_V3_SELECT | (u8) selector;
- return i2c_smbus_write_byte(client, v3_prog);
+ ret = i2c_smbus_write_byte(client, v3_prog);
+ if (ret)
+ return ret;
+
+ max1586->v3_curr_sel = selector;
+
+ return 0;
+}
+
+static int max1586_v6_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct max1586_data *max1586 = rdev_get_drvdata(rdev);
+
+ return max1586->v6_curr_sel;
}
static int max1586_v6_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
- struct i2c_client *client = rdev_get_drvdata(rdev);
+ struct max1586_data *max1586 = rdev_get_drvdata(rdev);
+ struct i2c_client *client = max1586->client;
u8 v6_prog;
+ int ret;
dev_dbg(&client->dev, "changing voltage v6 to %dmv\n",
rdev->desc->volt_table[selector] / 1000);
v6_prog = I2C_V6_SELECT | (u8) selector;
- return i2c_smbus_write_byte(client, v6_prog);
+ ret = i2c_smbus_write_byte(client, v6_prog);
+ if (ret)
+ return ret;
+
+ max1586->v6_curr_sel = selector;
+
+ return 0;
}
/*
@@ -95,12 +127,14 @@ static int max1586_v6_set_voltage_sel(struct regulator_dev *rdev,
* the set up value.
*/
static struct regulator_ops max1586_v3_ops = {
+ .get_voltage_sel = max1586_v3_get_voltage_sel,
.set_voltage_sel = max1586_v3_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static struct regulator_ops max1586_v6_ops = {
+ .get_voltage_sel = max1586_v6_get_voltage_sel,
.set_voltage_sel = max1586_v6_set_voltage_sel,
.list_voltage = regulator_list_voltage_table,
};
@@ -125,7 +159,7 @@ static struct regulator_desc max1586_reg[] = {
},
};
-static int __devinit max1586_pmic_probe(struct i2c_client *client,
+static int max1586_pmic_probe(struct i2c_client *client,
const struct i2c_device_id *i2c_id)
{
struct regulator_dev **rdev;
@@ -148,6 +182,10 @@ static int __devinit max1586_pmic_probe(struct i2c_client *client,
max1586->min_uV = MAX1586_V3_MIN_UV / 1000 * pdata->v3_gain / 1000;
max1586->max_uV = MAX1586_V3_MAX_UV / 1000 * pdata->v3_gain / 1000;
+ /* Set curr_sel to default voltage on power-up */
+ max1586->v3_curr_sel = 24; /* 1.3V */
+ max1586->v6_curr_sel = 0;
+
rdev = max1586->rdev;
for (i = 0; i < pdata->num_subdevs && i <= MAX1586_V6; i++) {
id = pdata->subdevs[i].id;
@@ -188,7 +226,7 @@ err:
return ret;
}
-static int __devexit max1586_pmic_remove(struct i2c_client *client)
+static int max1586_pmic_remove(struct i2c_client *client)
{
struct max1586_data *max1586 = i2c_get_clientdata(client);
int i;
@@ -207,7 +245,7 @@ MODULE_DEVICE_TABLE(i2c, max1586_id);
static struct i2c_driver max1586_pmic_driver = {
.probe = max1586_pmic_probe,
- .remove = __devexit_p(max1586_pmic_remove),
+ .remove = max1586_pmic_remove,
.driver = {
.name = "max1586",
.owner = THIS_MODULE,