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regulator: axp20x-regulator: add support for AXP803
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AXP803 PMIC also have a series of regulators (DCDCs and LDOs)
controllable via I2C/RSB bus.

Add support for them.

Signed-off-by: Icenowy Zheng <[email protected]>
Acked-by: Chen-Yu Tsai <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
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@Icenowy @broonie
Icenowy authored and broonie committed May 19, 2017
1 parent 2ea659a commit 1dbe0cc
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Showing 2 changed files with 168 additions and 22 deletions.
153 changes: 131 additions & 22 deletions drivers/regulator/axp20x-regulator.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -244,6 +244,82 @@ static const struct regulator_desc axp22x_drivevbus_regulator = {
.ops = &axp20x_ops_sw,
};

static const struct regulator_linear_range axp803_dcdc234_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0x0, 0x46, 10000),
REGULATOR_LINEAR_RANGE(1220000, 0x47, 0x4b, 20000),
};

static const struct regulator_linear_range axp803_dcdc5_ranges[] = {
REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 10000),
REGULATOR_LINEAR_RANGE(1140000, 0x21, 0x44, 20000),
};

static const struct regulator_linear_range axp803_dcdc6_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000),
REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000),
};

/* AXP806's CLDO2 and AXP809's DLDO1 shares the same range */
static const struct regulator_linear_range axp803_dldo2_ranges[] = {
REGULATOR_LINEAR_RANGE(700000, 0x0, 0x1a, 100000),
REGULATOR_LINEAR_RANGE(3400000, 0x1b, 0x1f, 200000),
};

static const struct regulator_desc axp803_regulators[] = {
AXP_DESC(AXP803, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
AXP803_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(0)),
AXP_DESC_RANGES(AXP803, DCDC2, "dcdc2", "vin2", axp803_dcdc234_ranges,
76, AXP803_DCDC2_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
BIT(1)),
AXP_DESC_RANGES(AXP803, DCDC3, "dcdc3", "vin3", axp803_dcdc234_ranges,
76, AXP803_DCDC3_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
BIT(2)),
AXP_DESC_RANGES(AXP803, DCDC4, "dcdc4", "vin4", axp803_dcdc234_ranges,
76, AXP803_DCDC4_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
BIT(3)),
AXP_DESC_RANGES(AXP803, DCDC5, "dcdc5", "vin5", axp803_dcdc5_ranges,
68, AXP803_DCDC5_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
BIT(4)),
AXP_DESC_RANGES(AXP803, DCDC6, "dcdc6", "vin6", axp803_dcdc6_ranges,
72, AXP803_DCDC6_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
BIT(5)),
/* secondary switchable output of DCDC1 */
AXP_DESC_SW(AXP803, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2,
BIT(7)),
AXP_DESC(AXP803, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(5)),
AXP_DESC(AXP803, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(6)),
AXP_DESC(AXP803, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)),
AXP_DESC(AXP803, DLDO1, "dldo1", "dldoin", 700, 3300, 100,
AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)),
AXP_DESC_RANGES(AXP803, DLDO2, "dldo2", "dldoin", axp803_dldo2_ranges,
32, AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
BIT(4)),
AXP_DESC(AXP803, DLDO3, "dldo3", "dldoin", 700, 3300, 100,
AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
AXP_DESC(AXP803, DLDO4, "dldo4", "dldoin", 700, 3300, 100,
AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)),
AXP_DESC(AXP803, ELDO1, "eldo1", "eldoin", 700, 1900, 50,
AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
AXP_DESC(AXP803, ELDO2, "eldo2", "eldoin", 700, 1900, 50,
AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
AXP_DESC(AXP803, ELDO3, "eldo3", "eldoin", 700, 1900, 50,
AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
AXP_DESC(AXP803, FLDO1, "fldo1", "fldoin", 700, 1450, 50,
AXP803_FLDO1_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(2)),
AXP_DESC(AXP803, FLDO2, "fldo2", "fldoin", 700, 1450, 50,
AXP803_FLDO2_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(3)),
AXP_DESC_IO(AXP803, LDO_IO0, "ldo-io0", "ips", 700, 3300, 100,
AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
AXP_DESC_IO(AXP803, LDO_IO1, "ldo-io1", "ips", 700, 3300, 100,
AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
AXP_DESC_FIXED(AXP803, RTC_LDO, "rtc-ldo", "ips", 3000),
};

static const struct regulator_linear_range axp806_dcdca_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000),
REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000),
Expand All @@ -254,11 +330,6 @@ static const struct regulator_linear_range axp806_dcdcd_ranges[] = {
REGULATOR_LINEAR_RANGE(1600000, 0x2e, 0x3f, 100000),
};

static const struct regulator_linear_range axp806_cldo2_ranges[] = {
REGULATOR_LINEAR_RANGE(700000, 0x0, 0x1a, 100000),
REGULATOR_LINEAR_RANGE(3400000, 0x1b, 0x1f, 200000),
};

static const struct regulator_desc axp806_regulators[] = {
AXP_DESC_RANGES(AXP806, DCDCA, "dcdca", "vina", axp806_dcdca_ranges,
72, AXP806_DCDCA_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1,
Expand Down Expand Up @@ -289,7 +360,7 @@ static const struct regulator_desc axp806_regulators[] = {
AXP806_BLDO4_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(3)),
AXP_DESC(AXP806, CLDO1, "cldo1", "cldoin", 700, 3300, 100,
AXP806_CLDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(4)),
AXP_DESC_RANGES(AXP806, CLDO2, "cldo2", "cldoin", axp806_cldo2_ranges,
AXP_DESC_RANGES(AXP806, CLDO2, "cldo2", "cldoin", axp803_dldo2_ranges,
32, AXP806_CLDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2,
BIT(5)),
AXP_DESC(AXP806, CLDO3, "cldo3", "cldoin", 700, 3300, 100,
Expand Down Expand Up @@ -326,7 +397,7 @@ static const struct regulator_desc axp809_regulators[] = {
AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)),
AXP_DESC(AXP809, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp806_cldo2_ranges,
AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp803_dldo2_ranges,
32, AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
BIT(3)),
AXP_DESC(AXP809, DLDO2, "dldo2", "dldoin", 700, 3300, 100,
Expand Down Expand Up @@ -369,14 +440,21 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
def = 1500;
step = 75;
break;
case AXP806_ID:
case AXP803_ID:
/*
* AXP806 DCDC work frequency setting has the same range and
* AXP803 DCDC work frequency setting has the same range and
* step as AXP22X, but at a different register.
* Fall through to the check below.
* (See include/linux/mfd/axp20x.h)
*/
reg = AXP806_DCDC_FREQ_CTRL;
reg = AXP803_DCDC_FREQ_CTRL;
case AXP806_ID:
/*
* AXP806 also have DCDC work frequency setting register at a
* different position.
*/
if (axp20x->variant == AXP806_ID)
reg = AXP806_DCDC_FREQ_CTRL;
case AXP221_ID:
case AXP223_ID:
case AXP809_ID:
Expand Down Expand Up @@ -475,6 +553,14 @@ static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 work
workmode <<= id - AXP22X_DCDC1;
break;

case AXP803_ID:
if (id < AXP803_DCDC1 || id > AXP803_DCDC6)
return -EINVAL;

mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP803_DCDC1);
workmode <<= id - AXP803_DCDC1;
break;

default:
/* should not happen */
WARN_ON(1);
Expand All @@ -492,20 +578,38 @@ static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id)
{
u32 reg = 0;

/* Only AXP806 has poly-phase outputs */
if (axp20x->variant != AXP806_ID)
return false;
/*
* Currently in our supported AXP variants, only AXP803 and AXP806
* have polyphase regulators.
*/
switch (axp20x->variant) {
case AXP803_ID:
regmap_read(axp20x->regmap, AXP803_POLYPHASE_CTRL, &reg);

switch (id) {
case AXP803_DCDC3:
return !!(reg & BIT(6));
case AXP803_DCDC6:
return !!(reg & BIT(7));
}
break;

regmap_read(axp20x->regmap, AXP806_DCDC_MODE_CTRL2, &reg);
case AXP806_ID:
regmap_read(axp20x->regmap, AXP806_DCDC_MODE_CTRL2, &reg);

switch (id) {
case AXP806_DCDCB:
return (((reg & GENMASK(7, 6)) == BIT(6)) ||
((reg & GENMASK(7, 6)) == BIT(7)));
case AXP806_DCDCC:
return ((reg & GENMASK(7, 6)) == BIT(7));
case AXP806_DCDCE:
return !!(reg & BIT(5));
}
break;

switch (id) {
case AXP806_DCDCB:
return (((reg & GENMASK(7, 6)) == BIT(6)) ||
((reg & GENMASK(7, 6)) == BIT(7)));
case AXP806_DCDCC:
return ((reg & GENMASK(7, 6)) == BIT(7));
case AXP806_DCDCE:
return !!(reg & BIT(5));
default:
return false;
}

return false;
Expand Down Expand Up @@ -540,6 +644,10 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
"x-powers,drive-vbus-en");
break;
case AXP803_ID:
regulators = axp803_regulators;
nregulators = AXP803_REG_ID_MAX;
break;
case AXP806_ID:
regulators = axp806_regulators;
nregulators = AXP806_REG_ID_MAX;
Expand Down Expand Up @@ -579,6 +687,7 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
* name.
*/
if ((regulators == axp22x_regulators && i == AXP22X_DC1SW) ||
(regulators == axp803_regulators && i == AXP803_DC1SW) ||
(regulators == axp809_regulators && i == AXP809_DC1SW)) {
new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
GFP_KERNEL);
Expand Down
37 changes: 37 additions & 0 deletions include/linux/mfd/axp20x.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,17 @@ enum axp20x_variants {
#define AXP806_BUS_ADDR_EXT 0xfe
#define AXP806_REG_ADDR_EXT 0xff

#define AXP803_POLYPHASE_CTRL 0x14
#define AXP803_FLDO1_V_OUT 0x1c
#define AXP803_FLDO2_V_OUT 0x1d
#define AXP803_DCDC1_V_OUT 0x20
#define AXP803_DCDC2_V_OUT 0x21
#define AXP803_DCDC3_V_OUT 0x22
#define AXP803_DCDC4_V_OUT 0x23
#define AXP803_DCDC5_V_OUT 0x24
#define AXP803_DCDC6_V_OUT 0x25
#define AXP803_DCDC_FREQ_CTRL 0x3b

/* Interrupt */
#define AXP152_IRQ1_EN 0x40
#define AXP152_IRQ2_EN 0x41
Expand Down Expand Up @@ -350,6 +361,32 @@ enum {
AXP809_REG_ID_MAX,
};

enum {
AXP803_DCDC1 = 0,
AXP803_DCDC2,
AXP803_DCDC3,
AXP803_DCDC4,
AXP803_DCDC5,
AXP803_DCDC6,
AXP803_DC1SW,
AXP803_ALDO1,
AXP803_ALDO2,
AXP803_ALDO3,
AXP803_DLDO1,
AXP803_DLDO2,
AXP803_DLDO3,
AXP803_DLDO4,
AXP803_ELDO1,
AXP803_ELDO2,
AXP803_ELDO3,
AXP803_FLDO1,
AXP803_FLDO2,
AXP803_RTC_LDO,
AXP803_LDO_IO0,
AXP803_LDO_IO1,
AXP803_REG_ID_MAX,
};

/* IRQs */
enum {
AXP152_IRQ_LDO0IN_CONNECT = 1,
Expand Down

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