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regulator: pfuze100: add pfuze3001 support 

This extends the pfuze100 driver with pfuze3001 support.

Latest datasheet:
https://www.nxp.com/docs/en/data-sheet/PF3001.pdf

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Stefan Wahren 2018-06-15 13:44:53 +02:00 committed by Mark Brown
parent 5986f83efa
commit 297101ab85
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 84 additions and 9 deletions
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4
drivers/regulator/Kconfig
View File

@ -633,12 +633,12 @@ config REGULATOR_PCF50633
on PCF50633
config REGULATOR_PFUZE100
tristate "Freescale PFUZE100/200/3000 regulator driver"
tristate "Freescale PFUZE100/200/3000/3001 regulator driver"
depends on I2C
select REGMAP_I2C
help
Say y here to support the regulators found on the Freescale
PFUZE100/200/3000 PMIC.
PFUZE100/200/3000/3001 PMIC.
config REGULATOR_PV88060
tristate "Powerventure Semiconductor PV88060 regulator"

78
drivers/regulator/pfuze100-regulator.c
View File

@ -44,7 +44,7 @@
#define PFUZE100_VGEN5VOL 0x70
#define PFUZE100_VGEN6VOL 0x71
enum chips { PFUZE100, PFUZE200, PFUZE3000 = 3 };
enum chips { PFUZE100, PFUZE200, PFUZE3000 = 3, PFUZE3001 = 0x31, };
struct pfuze_regulator {
struct regulator_desc desc;
@ -92,6 +92,7 @@ static const struct i2c_device_id pfuze_device_id[] = {
{.name = "pfuze100", .driver_data = PFUZE100},
{.name = "pfuze200", .driver_data = PFUZE200},
{.name = "pfuze3000", .driver_data = PFUZE3000},
{.name = "pfuze3001", .driver_data = PFUZE3001},
{ }
};
MODULE_DEVICE_TABLE(i2c, pfuze_device_id);
@ -100,6 +101,7 @@ static const struct of_device_id pfuze_dt_ids[] = {
{ .compatible = "fsl,pfuze100", .data = (void *)PFUZE100},
{ .compatible = "fsl,pfuze200", .data = (void *)PFUZE200},
{ .compatible = "fsl,pfuze3000", .data = (void *)PFUZE3000},
{ .compatible = "fsl,pfuze3001", .data = (void *)PFUZE3001},
{ }
};
MODULE_DEVICE_TABLE(of, pfuze_dt_ids);
@ -108,10 +110,28 @@ static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
{
struct pfuze_chip *pfuze100 = rdev_get_drvdata(rdev);
int id = rdev_get_id(rdev);
bool reg_has_ramp_delay;
unsigned int ramp_bits;
int ret;
if (id < PFUZE100_SWBST) {
switch (pfuze100->chip_id) {
case PFUZE3001:
/* no dynamic voltage scaling for PF3001 */
reg_has_ramp_delay = false;
break;
case PFUZE3000:
reg_has_ramp_delay = (id < PFUZE3000_SWBST);
break;
case PFUZE200:
reg_has_ramp_delay = (id < PFUZE200_SWBST);
break;
case PFUZE100:
default:
reg_has_ramp_delay = (id < PFUZE100_SWBST);
break;
}
if (reg_has_ramp_delay) {
ramp_delay = 12500 / ramp_delay;
ramp_bits = (ramp_delay >> 1) - (ramp_delay >> 3);
ret = regmap_update_bits(pfuze100->regmap,
@ -119,8 +139,9 @@ static int pfuze100_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
0xc0, ramp_bits << 6);
if (ret < 0)
dev_err(pfuze100->dev, "ramp failed, err %d\n", ret);
} else
} else {
ret = -EACCES;
}
return ret;
}
@ -361,6 +382,19 @@ static struct pfuze_regulator pfuze3000_regulators[] = {
PFUZE100_VGEN_REG(PFUZE3000, VLDO4, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000),
};
static struct pfuze_regulator pfuze3001_regulators[] = {
PFUZE100_SWB_REG(PFUZE3001, SW1, PFUZE100_SW1ABVOL, 0x1f, pfuze3000_sw1a),
PFUZE100_SWB_REG(PFUZE3001, SW2, PFUZE100_SW2VOL, 0x7, pfuze3000_sw2lo),
PFUZE3000_SW3_REG(PFUZE3001, SW3, PFUZE100_SW3AVOL, 900000, 1650000, 50000),
PFUZE100_SWB_REG(PFUZE3001, VSNVS, PFUZE100_VSNVSVOL, 0x7, pfuze100_vsnvs),
PFUZE100_VGEN_REG(PFUZE3001, VLDO1, PFUZE100_VGEN1VOL, 1800000, 3300000, 100000),
PFUZE100_VGEN_REG(PFUZE3001, VLDO2, PFUZE100_VGEN2VOL, 800000, 1550000, 50000),
PFUZE3000_VCC_REG(PFUZE3001, VCCSD, PFUZE100_VGEN3VOL, 2850000, 3300000, 150000),
PFUZE3000_VCC_REG(PFUZE3001, V33, PFUZE100_VGEN4VOL, 2850000, 3300000, 150000),
PFUZE100_VGEN_REG(PFUZE3001, VLDO3, PFUZE100_VGEN5VOL, 1800000, 3300000, 100000),
PFUZE100_VGEN_REG(PFUZE3001, VLDO4, PFUZE100_VGEN6VOL, 1800000, 3300000, 100000),
};
#ifdef CONFIG_OF
/* PFUZE100 */
static struct of_regulator_match pfuze100_matches[] = {
@ -418,6 +452,21 @@ static struct of_regulator_match pfuze3000_matches[] = {
{ .name = "vldo4", },
};
/* PFUZE3001 */
static struct of_regulator_match pfuze3001_matches[] = {
{ .name = "sw1", },
{ .name = "sw2", },
{ .name = "sw3", },
{ .name = "vsnvs", },
{ .name = "vldo1", },
{ .name = "vldo2", },
{ .name = "vccsd", },
{ .name = "v33", },
{ .name = "vldo3", },
{ .name = "vldo4", },
};
static struct of_regulator_match *pfuze_matches;
static int pfuze_parse_regulators_dt(struct pfuze_chip *chip)
@ -437,6 +486,11 @@ static int pfuze_parse_regulators_dt(struct pfuze_chip *chip)
}
switch (chip->chip_id) {
case PFUZE3001:
pfuze_matches = pfuze3001_matches;
ret = of_regulator_match(dev, parent, pfuze3001_matches,
ARRAY_SIZE(pfuze3001_matches));
break;
case PFUZE3000:
pfuze_matches = pfuze3000_matches;
ret = of_regulator_match(dev, parent, pfuze3000_matches,
@ -508,7 +562,8 @@ static int pfuze_identify(struct pfuze_chip *pfuze_chip)
*/
dev_info(pfuze_chip->dev, "Assuming misprogrammed ID=0x8");
} else if ((value & 0x0f) != pfuze_chip->chip_id &&
(value & 0xf0) >> 4 != pfuze_chip->chip_id) {
(value & 0xf0) >> 4 != pfuze_chip->chip_id &&
(value != pfuze_chip->chip_id)) {
/* device id NOT match with your setting */
dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value);
return -ENODEV;
@ -588,6 +643,13 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
/* use the right regulators after identify the right device */
switch (pfuze_chip->chip_id) {
case PFUZE3001:
pfuze_chip->pfuze_regulators = pfuze3001_regulators;
regulator_num = ARRAY_SIZE(pfuze3001_regulators);
sw_check_start = PFUZE3001_SW2;
sw_check_end = PFUZE3001_SW2;
sw_hi = 1 << 3;
break;
case PFUZE3000:
pfuze_chip->pfuze_regulators = pfuze3000_regulators;
regulator_num = ARRAY_SIZE(pfuze3000_regulators);
@ -611,7 +673,8 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
}
dev_info(&client->dev, "pfuze%s found.\n",
(pfuze_chip->chip_id == PFUZE100) ? "100" :
((pfuze_chip->chip_id == PFUZE200) ? "200" : "3000"));
(((pfuze_chip->chip_id == PFUZE200) ? "200" :
((pfuze_chip->chip_id == PFUZE3000) ? "3000" : "3001"))));
memcpy(pfuze_chip->regulator_descs, pfuze_chip->pfuze_regulators,
sizeof(pfuze_chip->regulator_descs));
@ -636,7 +699,8 @@ static int pfuze100_regulator_probe(struct i2c_client *client,
if (i >= sw_check_start && i <= sw_check_end) {
regmap_read(pfuze_chip->regmap, desc->vsel_reg, &val);
if (val & sw_hi) {
if (pfuze_chip->chip_id == PFUZE3000) {
if (pfuze_chip->chip_id == PFUZE3000 ||
pfuze_chip->chip_id == PFUZE3001) {
desc->volt_table = pfuze3000_sw2hi;
desc->n_voltages = ARRAY_SIZE(pfuze3000_sw2hi);
} else {
@ -675,5 +739,5 @@ static struct i2c_driver pfuze_driver = {
module_i2c_driver(pfuze_driver);
MODULE_AUTHOR("Robin Gong <b38343@freescale.com>");
MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100/200/3000 PMIC");
MODULE_DESCRIPTION("Regulator Driver for Freescale PFUZE100/200/3000/3001 PMIC");
MODULE_LICENSE("GPL v2");

11
include/linux/regulator/pfuze100.h
View File

@ -64,6 +64,17 @@
#define PFUZE3000_VLDO3 11
#define PFUZE3000_VLDO4 12
#define PFUZE3001_SW1 0
#define PFUZE3001_SW2 1
#define PFUZE3001_SW3 2
#define PFUZE3001_VSNVS 3
#define PFUZE3001_VLDO1 4
#define PFUZE3001_VLDO2 5
#define PFUZE3001_VCCSD 6
#define PFUZE3001_V33 7
#define PFUZE3001_VLDO3 8
#define PFUZE3001_VLDO4 9
struct regulator_init_data;
struct pfuze_regulator_platform_data {