Unverified Commit 4cf12735 authored by Axel Lin's avatar Axel Lin Committed by Mark Brown
Browse files

regulator: lp8755: Get rid of lp8755_read/lp8755_write/lp8755_update_bits 



Just use regmap_read/regmap_write/regmap_update_bits instead.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Link: https://lore.kernel.org/r/20200802090638.380589-1-axel.lin@ingics.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6f4ac284

drivers/regulator/lp8755.c

+21 −61
Original line number Diff line number Diff line
@@ -49,53 +49,15 @@ struct lp8755_chip { 
	struct regulator_dev *rdev[LP8755_BUCK_MAX];

};



/**

 *lp8755_read : read a single register value from lp8755.

 *@pchip : device to read from

 *@reg   : register to read from

 *@val   : pointer to store read value

 */

static int lp8755_read(struct lp8755_chip *pchip, unsigned int reg,

		       unsigned int *val)

{

	return regmap_read(pchip->regmap, reg, val);

}



/**

 *lp8755_write : write a single register value to lp8755.

 *@pchip : device to write to

 *@reg   : register to write to

 *@val   : value to be written

 */

static int lp8755_write(struct lp8755_chip *pchip, unsigned int reg,

			unsigned int val)

{

	return regmap_write(pchip->regmap, reg, val);

}



/**

 *lp8755_update_bits : set the values of bit fields in lp8755 register.

 *@pchip : device to read from

 *@reg   : register to update

 *@mask  : bitmask to be changed

 *@val   : value for bitmask

 */

static int lp8755_update_bits(struct lp8755_chip *pchip, unsigned int reg,

			      unsigned int mask, unsigned int val)

{

	return regmap_update_bits(pchip->regmap, reg, mask, val);

}



static int lp8755_buck_enable_time(struct regulator_dev *rdev)

{

	int ret;

	unsigned int regval;

	enum lp8755_bucks id = rdev_get_id(rdev);

	struct lp8755_chip *pchip = rdev_get_drvdata(rdev);



	ret = lp8755_read(pchip, 0x12 + id, &regval);

	ret = regmap_read(rdev->regmap, 0x12 + id, &regval);

	if (ret < 0) {

		dev_err(pchip->dev, "i2c access error %s\n", __func__);

		dev_err(&rdev->dev, "i2c access error %s\n", __func__);

		return ret;

	}

	return (regval & 0xff) * 100;
@@ -115,17 +77,17 @@ static int lp8755_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) 
		break;

	case REGULATOR_MODE_NORMAL:

		/* enable automatic pwm/pfm mode */

		ret = lp8755_update_bits(pchip, 0x08 + id, 0x20, 0x00);

		ret = regmap_update_bits(rdev->regmap, 0x08 + id, 0x20, 0x00);

		if (ret < 0)

			goto err_i2c;

		break;

	case REGULATOR_MODE_IDLE:

		/* enable automatic pwm/pfm/lppfm mode */

		ret = lp8755_update_bits(pchip, 0x08 + id, 0x20, 0x20);

		ret = regmap_update_bits(rdev->regmap, 0x08 + id, 0x20, 0x20);

		if (ret < 0)

			goto err_i2c;



		ret = lp8755_update_bits(pchip, 0x10, 0x01, 0x01);

		ret = regmap_update_bits(rdev->regmap, 0x10, 0x01, 0x01);

		if (ret < 0)

			goto err_i2c;

		break;
@@ -135,12 +97,12 @@ static int lp8755_buck_set_mode(struct regulator_dev *rdev, unsigned int mode) 
		regbval = (0x01 << id);

	}



	ret = lp8755_update_bits(pchip, 0x06, 0x01 << id, regbval);

	ret = regmap_update_bits(rdev->regmap, 0x06, 0x01 << id, regbval);

	if (ret < 0)

		goto err_i2c;

	return ret;

err_i2c:

	dev_err(pchip->dev, "i2c access error %s\n", __func__);

	dev_err(&rdev->dev, "i2c access error %s\n", __func__);

	return ret;

}
@@ -149,9 +111,8 @@ static unsigned int lp8755_buck_get_mode(struct regulator_dev *rdev) 
	int ret;

	unsigned int regval;

	enum lp8755_bucks id = rdev_get_id(rdev);

	struct lp8755_chip *pchip = rdev_get_drvdata(rdev);



	ret = lp8755_read(pchip, 0x06, &regval);

	ret = regmap_read(rdev->regmap, 0x06, &regval);

	if (ret < 0)

		goto err_i2c;
@@ -159,7 +120,7 @@ static unsigned int lp8755_buck_get_mode(struct regulator_dev *rdev) 
	if (regval & (0x01 << id))

		return REGULATOR_MODE_FAST;



	ret = lp8755_read(pchip, 0x08 + id, &regval);

	ret = regmap_read(rdev->regmap, 0x08 + id, &regval);

	if (ret < 0)

		goto err_i2c;
@@ -171,7 +132,7 @@ static unsigned int lp8755_buck_get_mode(struct regulator_dev *rdev) 
	return REGULATOR_MODE_NORMAL;



err_i2c:

	dev_err(pchip->dev, "i2c access error %s\n", __func__);

	dev_err(&rdev->dev, "i2c access error %s\n", __func__);

	return 0;

}
@@ -180,7 +141,6 @@ static int lp8755_buck_set_ramp(struct regulator_dev *rdev, int ramp) 
	int ret;

	unsigned int regval = 0x00;

	enum lp8755_bucks id = rdev_get_id(rdev);

	struct lp8755_chip *pchip = rdev_get_drvdata(rdev);



	/* uV/us */

	switch (ramp) {
@@ -209,17 +169,17 @@ static int lp8755_buck_set_ramp(struct regulator_dev *rdev, int ramp) 
		regval = 0x00;

		break;

	default:

		dev_err(pchip->dev,

		dev_err(&rdev->dev,

			"Not supported ramp value %d %s\n", ramp, __func__);

		return -EINVAL;

	}



	ret = lp8755_update_bits(pchip, 0x07 + id, 0x07, regval);

	ret = regmap_update_bits(rdev->regmap, 0x07 + id, 0x07, regval);

	if (ret < 0)

		goto err_i2c;

	return ret;

err_i2c:

	dev_err(pchip->dev, "i2c access error %s\n", __func__);

	dev_err(&rdev->dev, "i2c access error %s\n", __func__);

	return ret;

}
@@ -278,7 +238,7 @@ static int lp8755_init_data(struct lp8755_chip *pchip) 
	struct lp8755_platform_data *pdata = pchip->pdata;



	/* read back  muti-phase configuration */

	ret = lp8755_read(pchip, 0x3D, &regval);

	ret = regmap_read(pchip->regmap, 0x3D, &regval);

	if (ret < 0)

		goto out_i2c_error;

	pchip->mphase = regval & 0x0F;
@@ -356,11 +316,11 @@ static irqreturn_t lp8755_irq_handler(int irq, void *data) 
	struct lp8755_chip *pchip = data;



	/* read flag0 register */

	ret = lp8755_read(pchip, 0x0D, &flag0);

	ret = regmap_read(pchip->regmap, 0x0D, &flag0);

	if (ret < 0)

		goto err_i2c;

	/* clear flag register to pull up int. pin */

	ret = lp8755_write(pchip, 0x0D, 0x00);

	ret = regmap_write(pchip->regmap, 0x0D, 0x00);

	if (ret < 0)

		goto err_i2c;
@@ -377,11 +337,11 @@ static irqreturn_t lp8755_irq_handler(int irq, void *data) 
		}



	/* read flag1 register */

	ret = lp8755_read(pchip, 0x0E, &flag1);

	ret = regmap_read(pchip->regmap, 0x0E, &flag1);

	if (ret < 0)

		goto err_i2c;

	/* clear flag register to pull up int. pin */

	ret = lp8755_write(pchip, 0x0E, 0x00);

	ret = regmap_write(pchip->regmap, 0x0E, 0x00);

	if (ret < 0)

		goto err_i2c;
@@ -423,7 +383,7 @@ static int lp8755_int_config(struct lp8755_chip *pchip) 
		return 0;

	}



	ret = lp8755_read(pchip, 0x0F, &regval);

	ret = regmap_read(pchip->regmap, 0x0F, &regval);

	if (ret < 0) {

		dev_err(pchip->dev, "i2c access error %s\n", __func__);

		return ret;
@@ -502,7 +462,7 @@ static int lp8755_probe(struct i2c_client *client, 
err:

	/* output disable */

	for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)

		lp8755_write(pchip, icnt, 0x00);

		regmap_write(pchip->regmap, icnt, 0x00);



	return ret;

}
@@ -513,7 +473,7 @@ static int lp8755_remove(struct i2c_client *client) 
	struct lp8755_chip *pchip = i2c_get_clientdata(client);



	for (icnt = 0; icnt < LP8755_BUCK_MAX; icnt++)

		lp8755_write(pchip, icnt, 0x00);

		regmap_write(pchip->regmap, icnt, 0x00);



	return 0;

}

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