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Commit 7e44bb83 authored by Sangbeom Kim's avatar Sangbeom Kim Committed by Mark Brown
Browse files

regulator: Add support s5m8767 opmode operation 



S5M8767A has 4 operation mode for BUCK/LDOs.
This patch can handle opmode for s5m8767a.

Signed-off-by: default avatarSangbeom Kim <sbkim73@samsung.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 62fe8cd5

drivers/regulator/s5m8767.c

+61 −10
Original line number Diff line number Diff line
@@ -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) {