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Commit 27aefa3b authored by Kim, Milo's avatar Kim, Milo Committed by Anton Vorontsov
Browse files

lp8727_charger: Change i2c functions 



On writing single byte via i2c, use i2c_smbus_write_byte_data()
rather than i2c_smbus_write_i2c_block_data().

Name changes :
lp8727_i2c_read() -> lp8727_read_bytes()
lp8727_i2c_write() -> removed
lp8727_i2c_read_byte() -> lp8727_read_byte()
lp8727_i2c_write_byte() -> lp8727_write_byte()

Signed-off-by: default avatarMilo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: default avatarAnton Vorontsov <anton.vorontsov@linaro.org>
parent 7da6334e

drivers/power/lp8727_charger.c

+20 −28
Original line number Diff line number Diff line
@@ -92,7 +92,7 @@ struct lp8727_chg { 
	enum lp8727_dev_id devid;

};



static int lp8727_i2c_read(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len)

static int lp8727_read_bytes(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len)

{

	s32 ret;
@@ -103,29 +103,22 @@ static int lp8727_i2c_read(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len) 
	return (ret != len) ? -EIO : 0;

}



static int lp8727_i2c_write(struct lp8727_chg *pchg, u8 reg, u8 *data, u8 len)

static inline int lp8727_read_byte(struct lp8727_chg *pchg, u8 reg, u8 *data)

{

	s32 ret;

	return lp8727_read_bytes(pchg, reg, data, 1);

}



static int lp8727_write_byte(struct lp8727_chg *pchg, u8 reg, u8 data)

{

	int ret;



	mutex_lock(&pchg->xfer_lock);

	ret = i2c_smbus_write_i2c_block_data(pchg->client, reg, len, data);

	ret = i2c_smbus_write_byte_data(pchg->client, reg, data);

	mutex_unlock(&pchg->xfer_lock);



	return ret;

}



static inline int lp8727_i2c_read_byte(struct lp8727_chg *pchg, u8 reg,

				       u8 *data)

{

	return lp8727_i2c_read(pchg, reg, data, 1);

}



static inline int lp8727_i2c_write_byte(struct lp8727_chg *pchg, u8 reg,

					u8 *data)

{

	return lp8727_i2c_write(pchg, reg, data, 1);

}



static int lp8727_is_charger_attached(const char *name, int id)

{

	if (name) {
@@ -144,12 +137,12 @@ static int lp8727_init_device(struct lp8727_chg *pchg) 
	int ret;



	val = ID200_EN | ADC_EN | CP_EN;

	ret = lp8727_i2c_write_byte(pchg, CTRL1, &val);

	ret = lp8727_write_byte(pchg, CTRL1, val);

	if (ret)

		return ret;



	val = INT_EN | CHGDET_EN;

	ret = lp8727_i2c_write_byte(pchg, CTRL2, &val);

	ret = lp8727_write_byte(pchg, CTRL2, val);

	if (ret)

		return ret;
@@ -159,21 +152,20 @@ static int lp8727_init_device(struct lp8727_chg *pchg) 
static int lp8727_is_dedicated_charger(struct lp8727_chg *pchg)

{

	u8 val;

	lp8727_i2c_read_byte(pchg, STATUS1, &val);

	lp8727_read_byte(pchg, STATUS1, &val);

	return (val & DCPORT);

}



static int lp8727_is_usb_charger(struct lp8727_chg *pchg)

{

	u8 val;

	lp8727_i2c_read_byte(pchg, STATUS1, &val);

	lp8727_read_byte(pchg, STATUS1, &val);

	return (val & CHPORT);

}



static void lp8727_ctrl_switch(struct lp8727_chg *pchg, u8 sw)

{

	u8 val = sw;

	lp8727_i2c_write_byte(pchg, SWCTRL, &val);

	lp8727_write_byte(pchg, SWCTRL, sw);

}



static void lp8727_id_detection(struct lp8727_chg *pchg, u8 id, int vbusin)
@@ -213,9 +205,9 @@ static void lp8727_enable_chgdet(struct lp8727_chg *pchg) 
{

	u8 val;



	lp8727_i2c_read_byte(pchg, CTRL2, &val);

	lp8727_read_byte(pchg, CTRL2, &val);

	val |= CHGDET_EN;

	lp8727_i2c_write_byte(pchg, CTRL2, &val);

	lp8727_write_byte(pchg, CTRL2, val);

}



static void lp8727_delayed_func(struct work_struct *_work)
@@ -224,7 +216,7 @@ static void lp8727_delayed_func(struct work_struct *_work) 
	struct lp8727_chg *pchg =

	    container_of(_work, struct lp8727_chg, work.work);



	if (lp8727_i2c_read(pchg, INT1, intstat, 2)) {

	if (lp8727_read_bytes(pchg, INT1, intstat, 2)) {

		dev_err(pchg->dev, "can not read INT registers\n");

		return;

	}
@@ -308,7 +300,7 @@ static int lp8727_battery_get_property(struct power_supply *psy, 
	switch (psp) {

	case POWER_SUPPLY_PROP_STATUS:

		if (lp8727_is_charger_attached(psy->name, pchg->devid)) {

			lp8727_i2c_read_byte(pchg, STATUS1, &read);

			lp8727_read_byte(pchg, STATUS1, &read);

			if (((read & CHGSTAT) >> 4) == EOC)

				val->intval = POWER_SUPPLY_STATUS_FULL;

			else
@@ -318,7 +310,7 @@ static int lp8727_battery_get_property(struct power_supply *psy, 
		}

		break;

	case POWER_SUPPLY_PROP_HEALTH:

		lp8727_i2c_read_byte(pchg, STATUS2, &read);

		lp8727_read_byte(pchg, STATUS2, &read);

		read = (read & TEMP_STAT) >> 5;

		if (read >= 0x1 && read <= 0x3)

			val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
@@ -359,7 +351,7 @@ static void lp8727_charger_changed(struct power_supply *psy) 
			eoc_level = pchg->chg_parm->eoc_level;

			ichg = pchg->chg_parm->ichg;

			val = (ichg << 4) | eoc_level;

			lp8727_i2c_write_byte(pchg, CHGCTRL2, &val);

			lp8727_write_byte(pchg, CHGCTRL2, val);

		}

	}

}