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>

diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 58447db..a2afc0e 100644 (file)
--- 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) {