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authorSangbeom Kim <sbkim73@samsung.com>2012-03-09 17:55:34 +0900
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-01 11:59:22 +0100
commit7e44bb83a777fd67a70b2188dd31c33db25aef72 (patch)
tree742538625928f806a32e0f8d4f7a68d5ef6a3c25 /drivers/regulator/s5m8767.c
parent62fe8cd50175ca797dcf3d39a7206da6ac0f6c50 (diff)
downloadlinaro-lsk-7e44bb83a777fd67a70b2188dd31c33db25aef72.tar.gz
regulator: Add support s5m8767 opmode operation
S5M8767A has 4 operation mode for BUCK/LDOs. This patch can handle opmode for s5m8767a. Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/regulator/s5m8767.c')
-rw-r--r--drivers/regulator/s5m8767.c71
1 files changed, 61 insertions, 10 deletions
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 58447db15de..a2afc0edc5a 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -28,6 +28,7 @@ struct s5m8767_info {
struct s5m87xx_dev *iodev;
int num_regulators;
struct regulator_dev **rdev;
+ struct s5m_opmode_data *opmode;
int ramp_delay;
bool buck2_ramp;
@@ -141,9 +142,56 @@ static int s5m8767_list_voltage(struct regulator_dev *rdev,
return val;
}
-static int s5m8767_get_register(struct regulator_dev *rdev, int *reg)
+unsigned int s5m8767_opmode_reg[][4] = {
+ /* {OFF, ON, LOWPOWER, SUSPEND} */
+ /* LDO1 ... LDO28 */
+ {0x0, 0x3, 0x2, 0x1}, /* LDO1 */
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x0, 0x0, 0x0},
+ {0x0, 0x3, 0x2, 0x1}, /* LDO5 */
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1}, /* LDO10 */
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1}, /* LDO15 */
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x0, 0x0, 0x0},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1}, /* LDO20 */
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x0, 0x0, 0x0},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1}, /* LDO25 */
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1},
+ {0x0, 0x3, 0x2, 0x1}, /* LDO28 */
+
+ /* BUCK1 ... BUCK9 */
+ {0x0, 0x3, 0x1, 0x1}, /* BUCK1 */
+ {0x0, 0x3, 0x1, 0x1},
+ {0x0, 0x3, 0x1, 0x1},
+ {0x0, 0x3, 0x1, 0x1},
+ {0x0, 0x3, 0x2, 0x1}, /* BUCK5 */
+ {0x0, 0x3, 0x1, 0x1},
+ {0x0, 0x3, 0x1, 0x1},
+ {0x0, 0x3, 0x1, 0x1},
+ {0x0, 0x3, 0x1, 0x1}, /* BUCK9 */
+};
+
+static int s5m8767_get_register(struct regulator_dev *rdev, int *reg,
+ int *enable_ctrl)
{
int reg_id = rdev_get_id(rdev);
+ unsigned int mode;
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
switch (reg_id) {
case S5M8767_LDO1 ... S5M8767_LDO2:
@@ -168,6 +216,8 @@ static int s5m8767_get_register(struct regulator_dev *rdev, int *reg)
return -EINVAL;
}
+ mode = s5m8767->opmode[reg_id].mode;
+ *enable_ctrl = s5m8767_opmode_reg[reg_id][mode] << S5M8767_ENCTRL_SHIFT;
return 0;
}
@@ -175,10 +225,10 @@ static int s5m8767_reg_is_enabled(struct regulator_dev *rdev)
{
struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
int ret, reg;
- int mask = 0xc0, pattern = 0xc0;
+ int mask = 0xc0, enable_ctrl;
u8 val;
- ret = s5m8767_get_register(rdev, &reg);
+ ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
if (ret == -EINVAL)
return 1;
else if (ret)
@@ -188,33 +238,33 @@ static int s5m8767_reg_is_enabled(struct regulator_dev *rdev)
if (ret)
return ret;
- return (val & mask) == pattern;
+ return (val & mask) == enable_ctrl;
}
static int s5m8767_reg_enable(struct regulator_dev *rdev)
{
struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
int ret, reg;
- int mask = 0xc0, pattern = 0xc0;
+ int mask = 0xc0, enable_ctrl;
- ret = s5m8767_get_register(rdev, &reg);
+ ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
if (ret)
return ret;
- return s5m_reg_update(s5m8767->iodev, reg, pattern, mask);
+ return s5m_reg_update(s5m8767->iodev, reg, enable_ctrl, mask);
}
static int s5m8767_reg_disable(struct regulator_dev *rdev)
{
struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
int ret, reg;
- int mask = 0xc0, pattern = 0xc0;
+ int mask = 0xc0, enable_ctrl;
- ret = s5m8767_get_register(rdev, &reg);
+ ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
if (ret)
return ret;
- return s5m_reg_update(s5m8767->iodev, reg, ~pattern, mask);
+ return s5m_reg_update(s5m8767->iodev, reg, ~mask, mask);
}
static int s5m8767_get_voltage_register(struct regulator_dev *rdev, int *_reg)
@@ -586,6 +636,7 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
s5m8767->buck2_ramp = pdata->buck2_ramp_enable;
s5m8767->buck3_ramp = pdata->buck3_ramp_enable;
s5m8767->buck4_ramp = pdata->buck4_ramp_enable;
+ s5m8767->opmode = pdata->opmode;
for (i = 0; i < 8; i++) {
if (s5m8767->buck2_gpiodvs) {