[PATCH v4 06/15] mfd: axp20x: Add support for AXP192

Aidan MacDonald
2022-06-29T14:30:10Z

The AXP192 PMIC is similar to the AXP202/AXP209, but with different
regulators, additional GPIOs, and a different IRQ register layout.

Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
---
drivers/mfd/axp20x-i2c.c | 2 +
drivers/mfd/axp20x.c | 152 +++++++++++++++++++++++++++++++++++++
include/linux/mfd/axp20x.h | 84 ++++++++++++++++++++
3 files changed, 238 insertions(+)

diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c
index 00ab48018d8d..9ada58fad77f 100644
--- a/drivers/mfd/axp20x-i2c.c
+++ b/drivers/mfd/axp20x-i2c.c
@@ -62,6 +62,7 @@ static int axp20x_i2c_remove(struct i2c_client *i2c)
#ifdef CONFIG_OF
static const struct of_device_id axp20x_i2c_of_match[] = {
{ .compatible = "x-powers,axp152", .data = (void *)AXP152_ID },
+ { .compatible = "x-powers,axp192", .data = (void *)AXP192_ID },
{ .compatible = "x-powers,axp202", .data = (void *)AXP202_ID },
{ .compatible = "x-powers,axp209", .data = (void *)AXP209_ID },
{ .compatible = "x-powers,axp221", .data = (void *)AXP221_ID },
@@ -75,6 +76,7 @@ MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match);

static const struct i2c_device_id axp20x_i2c_id[] = {
{ "axp152", 0 },
+ { "axp192", 0 },
{ "axp202", 0 },
{ "axp209", 0 },
{ "axp221", 0 },
diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index 8161a5dc68e8..6ab2a1f8888c 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -34,6 +34,7 @@

static const char * const axp20x_model_names[] = {
"AXP152",
+ "AXP192",
"AXP202",
"AXP209",
"AXP221",
@@ -92,6 +93,35 @@ static const struct regmap_access_table axp20x_volatile_table = {
.n_yes_ranges = ARRAY_SIZE(axp20x_volatile_ranges),
};

+static const struct regmap_range axp192_writeable_ranges[] = {
+ regmap_reg_range(AXP192_DATACACHE(0), AXP192_DATACACHE(5)),
+ regmap_reg_range(AXP192_PWR_OUT_CTRL, AXP192_IRQ5_STATE),
+ regmap_reg_range(AXP20X_DCDC_MODE, AXP192_N_RSTO_CTRL),
+ regmap_reg_range(AXP20X_CC_CTRL, AXP20X_CC_CTRL),
+};
+
+static const struct regmap_range axp192_volatile_ranges[] = {
+ regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP192_USB_OTG_STATUS),
+ regmap_reg_range(AXP192_IRQ1_STATE, AXP192_IRQ4_STATE),
+ regmap_reg_range(AXP192_IRQ5_STATE, AXP192_IRQ5_STATE),
+ regmap_reg_range(AXP20X_ACIN_V_ADC_H, AXP20X_IPSOUT_V_HIGH_L),
+ regmap_reg_range(AXP20X_TIMER_CTRL, AXP20X_TIMER_CTRL),
+ regmap_reg_range(AXP192_GPIO2_0_STATE, AXP192_GPIO2_0_STATE),
+ regmap_reg_range(AXP192_GPIO4_3_STATE, AXP192_GPIO4_3_STATE),
+ regmap_reg_range(AXP192_N_RSTO_CTRL, AXP192_N_RSTO_CTRL),
+ regmap_reg_range(AXP20X_CHRG_CC_31_24, AXP20X_CC_CTRL),
+};
+
+static const struct regmap_access_table axp192_writeable_table = {
+ .yes_ranges = axp192_writeable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(axp192_writeable_ranges),
+};
+
+static const struct regmap_access_table axp192_volatile_table = {
+ .yes_ranges = axp192_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(axp192_volatile_ranges),
+};
+
/* AXP22x ranges are shared with the AXP809, as they cover the same range */
static const struct regmap_range axp22x_writeable_ranges[] = {
regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE),
@@ -173,6 +203,25 @@ static const struct resource axp152_pek_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP152_IRQ_PEK_FAL_EDGE, "PEK_DBF"),
};

+static const struct resource axp192_gpio_resources[] = {
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_GPIO0_INPUT, "GPIO0"),
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_GPIO1_INPUT, "GPIO1"),
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_GPIO2_INPUT, "GPIO2"),
+};
+
+static const struct resource axp192_ac_power_supply_resources[] = {
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_ACIN_PLUGIN, "ACIN_PLUGIN"),
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_ACIN_REMOVAL, "ACIN_REMOVAL"),
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_ACIN_OVER_V, "ACIN_OVER_V"),
+};
+
+static const struct resource axp192_usb_power_supply_resources[] = {
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_VALID, "VBUS_VALID"),
+ DEFINE_RES_IRQ_NAMED(AXP192_IRQ_VBUS_NOT_VALID, "VBUS_NOT_VALID"),
+};
+
static const struct resource axp20x_ac_power_supply_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_ACIN_PLUGIN, "ACIN_PLUGIN"),
DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_ACIN_REMOVAL, "ACIN_REMOVAL"),
@@ -245,6 +294,15 @@ static const struct regmap_config axp152_regmap_config = {
.cache_type = REGCACHE_RBTREE,
};

+static const struct regmap_config axp192_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .wr_table = &axp192_writeable_table,
+ .volatile_table = &axp192_volatile_table,
+ .max_register = AXP20X_CC_CTRL,
+ .cache_type = REGCACHE_RBTREE,
+};
+
static const struct regmap_config axp20x_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@@ -304,6 +362,42 @@ static const struct regmap_irq axp152_regmap_irqs[] = {
INIT_REGMAP_IRQ(AXP152, GPIO0_INPUT, 2, 0),
};

+static const struct regmap_irq axp192_regmap_irqs[] = {
+ INIT_REGMAP_IRQ(AXP192, ACIN_OVER_V, 0, 7),
+ INIT_REGMAP_IRQ(AXP192, ACIN_PLUGIN, 0, 6),
+ INIT_REGMAP_IRQ(AXP192, ACIN_REMOVAL, 0, 5),
+ INIT_REGMAP_IRQ(AXP192, VBUS_OVER_V, 0, 4),
+ INIT_REGMAP_IRQ(AXP192, VBUS_PLUGIN, 0, 3),
+ INIT_REGMAP_IRQ(AXP192, VBUS_REMOVAL, 0, 2),
+ INIT_REGMAP_IRQ(AXP192, VBUS_V_LOW, 0, 1),
+ INIT_REGMAP_IRQ(AXP192, BATT_PLUGIN, 1, 7),
+ INIT_REGMAP_IRQ(AXP192, BATT_REMOVAL, 1, 6),
+ INIT_REGMAP_IRQ(AXP192, BATT_ENT_ACT_MODE, 1, 5),
+ INIT_REGMAP_IRQ(AXP192, BATT_EXIT_ACT_MODE, 1, 4),
+ INIT_REGMAP_IRQ(AXP192, CHARG, 1, 3),
+ INIT_REGMAP_IRQ(AXP192, CHARG_DONE, 1, 2),
+ INIT_REGMAP_IRQ(AXP192, BATT_TEMP_HIGH, 1, 1),
+ INIT_REGMAP_IRQ(AXP192, BATT_TEMP_LOW, 1, 0),
+ INIT_REGMAP_IRQ(AXP192, DIE_TEMP_HIGH, 2, 7),
+ INIT_REGMAP_IRQ(AXP192, CHARG_I_LOW, 2, 6),
+ INIT_REGMAP_IRQ(AXP192, DCDC1_V_LONG, 2, 5),
+ INIT_REGMAP_IRQ(AXP192, DCDC2_V_LONG, 2, 4),
+ INIT_REGMAP_IRQ(AXP192, DCDC3_V_LONG, 2, 3),
+ INIT_REGMAP_IRQ(AXP192, PEK_SHORT, 2, 1),
+ INIT_REGMAP_IRQ(AXP192, PEK_LONG, 2, 0),
+ INIT_REGMAP_IRQ(AXP192, N_OE_PWR_ON, 3, 7),
+ INIT_REGMAP_IRQ(AXP192, N_OE_PWR_OFF, 3, 6),
+ INIT_REGMAP_IRQ(AXP192, VBUS_VALID, 3, 5),
+ INIT_REGMAP_IRQ(AXP192, VBUS_NOT_VALID, 3, 4),
+ INIT_REGMAP_IRQ(AXP192, VBUS_SESS_VALID, 3, 3),
+ INIT_REGMAP_IRQ(AXP192, VBUS_SESS_END, 3, 2),
+ INIT_REGMAP_IRQ(AXP192, LOW_PWR_LVL, 3, 0),
+ INIT_REGMAP_IRQ(AXP192, TIMER, 4, 7),
+ INIT_REGMAP_IRQ(AXP192, GPIO2_INPUT, 4, 2),
+ INIT_REGMAP_IRQ(AXP192, GPIO1_INPUT, 4, 1),
+ INIT_REGMAP_IRQ(AXP192, GPIO0_INPUT, 4, 0),
+};
+
static const struct regmap_irq axp20x_regmap_irqs[] = {
INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V, 0, 7),
INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN, 0, 6),
@@ -514,6 +608,32 @@ static const struct regmap_irq_chip axp152_regmap_irq_chip = {
.num_regs = 3,
};

+static unsigned int axp192_get_irq_reg(struct regmap_irq_chip_data *data,
+ unsigned int base, int index)
+{
+ /* linear mapping for IRQ1 to IRQ4 */
+ if (index < 4)
+ return base + index;
+
+ /* handle IRQ5 separately */
+ if (base == AXP192_IRQ1_EN)
+ return AXP192_IRQ5_EN;
+
+ return AXP192_IRQ5_STATE;
+}
+
+static const struct regmap_irq_chip axp192_regmap_irq_chip = {
+ .name = "axp192_irq_chip",
+ .status_base = AXP192_IRQ1_STATE,
+ .ack_base = AXP192_IRQ1_STATE,
+ .unmask_base = AXP192_IRQ1_EN,
+ .init_ack_masked = true,
+ .irqs = axp192_regmap_irqs,
+ .num_irqs = ARRAY_SIZE(axp192_regmap_irqs),
+ .num_regs = 5,
+ .get_irq_reg = axp192_get_irq_reg,
+};
+
static const struct regmap_irq_chip axp20x_regmap_irq_chip = {
.name = "axp20x_irq_chip",
.status_base = AXP20X_IRQ1_STATE,
@@ -588,6 +708,32 @@ static const struct regmap_irq_chip axp809_regmap_irq_chip = {
.num_regs = 5,
};

+static const struct mfd_cell axp192_cells[] = {
+ {
+ .name = "axp192-gpio",
+ .of_compatible = "x-powers,axp192-gpio",
+ .num_resources = ARRAY_SIZE(axp192_gpio_resources),
+ .resources = axp192_gpio_resources,
+ }, {
+ .name = "axp192-adc",
+ .of_compatible = "x-powers,axp192-adc",
+ }, {
+ .name = "axp20x-battery-power-supply",
+ .of_compatible = "x-powers,axp192-battery-power-supply",
+ }, {
+ .name = "axp20x-ac-power-supply",
+ .of_compatible = "x-powers,axp202-ac-power-supply",
+ .num_resources = ARRAY_SIZE(axp192_ac_power_supply_resources),
+ .resources = axp192_ac_power_supply_resources,
+ }, {
+ .name = "axp20x-usb-power-supply",
+ .of_compatible = "x-powers,axp192-usb-power-supply",
+ .num_resources = ARRAY_SIZE(axp192_usb_power_supply_resources),
+ .resources = axp192_usb_power_supply_resources,
+ },
+ { .name = "axp20x-regulator" },
+};
+
static const struct mfd_cell axp20x_cells[] = {
{
.name = "axp20x-gpio",
@@ -865,6 +1011,12 @@ int axp20x_match_device(struct axp20x_dev *axp20x)
axp20x->regmap_cfg = &axp152_regmap_config;
axp20x->regmap_irq_chip = &axp152_regmap_irq_chip;
break;
+ case AXP192_ID:
+ axp20x->nr_cells = ARRAY_SIZE(axp192_cells);
+ axp20x->cells = axp192_cells;
+ axp20x->regmap_cfg = &axp192_regmap_config;
+ axp20x->regmap_irq_chip = &axp192_regmap_irq_chip;
+ break;
case AXP202_ID:
case AXP209_ID:
axp20x->nr_cells = ARRAY_SIZE(axp20x_cells);
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index 9ab0e2fca7ea..c9a9ee8ec246 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -12,6 +12,7 @@

enum axp20x_variants {
AXP152_ID = 0,
+ AXP192_ID,
AXP202_ID,
AXP209_ID,
AXP221_ID,
@@ -24,6 +25,7 @@ enum axp20x_variants {
NR_AXP20X_VARIANTS,
};

+#define AXP192_DATACACHE(m) (0x06 + (m))
#define AXP20X_DATACACHE(m) (0x04 + (m))

/* Power supply */
@@ -45,6 +47,13 @@ enum axp20x_variants {
#define AXP152_DCDC_FREQ 0x37
#define AXP152_DCDC_MODE 0x80

+#define AXP192_USB_OTG_STATUS 0x04
+#define AXP192_PWR_OUT_CTRL 0x12
+#define AXP192_DCDC2_V_OUT 0x23
+#define AXP192_DCDC1_V_OUT 0x26
+#define AXP192_DCDC3_V_OUT 0x27
+#define AXP192_LDO2_3_V_OUT 0x28
+
#define AXP20X_PWR_INPUT_STATUS 0x00
#define AXP20X_PWR_OP_MODE 0x01
#define AXP20X_USB_OTG_STATUS 0x02
@@ -139,6 +148,17 @@ enum axp20x_variants {
#define AXP152_IRQ2_STATE 0x49
#define AXP152_IRQ3_STATE 0x4a

+#define AXP192_IRQ1_EN 0x40
+#define AXP192_IRQ2_EN 0x41
+#define AXP192_IRQ3_EN 0x42
+#define AXP192_IRQ4_EN 0x43
+#define AXP192_IRQ1_STATE 0x44
+#define AXP192_IRQ2_STATE 0x45
+#define AXP192_IRQ3_STATE 0x46
+#define AXP192_IRQ4_STATE 0x47
+#define AXP192_IRQ5_EN 0x4a
+#define AXP192_IRQ5_STATE 0x4d
+
#define AXP20X_IRQ1_EN 0x40
#define AXP20X_IRQ2_EN 0x41
#define AXP20X_IRQ3_EN 0x42
@@ -153,6 +173,11 @@ enum axp20x_variants {
#define AXP20X_IRQ6_STATE 0x4d

/* ADC */
+#define AXP192_GPIO2_V_ADC_H 0x68
+#define AXP192_GPIO2_V_ADC_L 0x69
+#define AXP192_GPIO3_V_ADC_H 0x6a
+#define AXP192_GPIO3_V_ADC_L 0x6b
+
#define AXP20X_ACIN_V_ADC_H 0x56
#define AXP20X_ACIN_V_ADC_L 0x57
#define AXP20X_ACIN_I_ADC_H 0x58
@@ -182,6 +207,8 @@ enum axp20x_variants {
#define AXP20X_IPSOUT_V_HIGH_L 0x7f

/* Power supply */
+#define AXP192_GPIO30_IN_RANGE 0x85
+
#define AXP20X_DCDC_MODE 0x80
#define AXP20X_ADC_EN1 0x82
#define AXP20X_ADC_EN2 0x83
@@ -210,6 +237,16 @@ enum axp20x_variants {
#define AXP152_PWM1_FREQ_Y 0x9c
#define AXP152_PWM1_DUTY_CYCLE 0x9d

+#define AXP192_GPIO0_CTRL 0x90
+#define AXP192_LDO_IO0_V_OUT 0x91
+#define AXP192_GPIO1_CTRL 0x92
+#define AXP192_GPIO2_CTRL 0x93
+#define AXP192_GPIO2_0_STATE 0x94
+#define AXP192_GPIO4_3_CTRL 0x95
+#define AXP192_GPIO4_3_STATE 0x96
+#define AXP192_GPIO2_0_PULL 0x97
+#define AXP192_N_RSTO_CTRL 0x9e
+
#define AXP20X_GPIO0_CTRL 0x90
#define AXP20X_LDO5_V_OUT 0x91
#define AXP20X_GPIO1_CTRL 0x92
@@ -287,6 +324,17 @@ enum axp20x_variants {
#define AXP288_FG_TUNE5 0xed

/* Regulators IDs */
+enum {
+ AXP192_DCDC1 = 0,
+ AXP192_DCDC2,
+ AXP192_DCDC3,
+ AXP192_LDO1,
+ AXP192_LDO2,
+ AXP192_LDO3,
+ AXP192_LDO_IO0,
+ AXP192_REG_ID_MAX
+};
+
enum {
AXP20X_LDO1 = 0,
AXP20X_LDO2,
@@ -440,6 +488,42 @@ enum {
AXP152_IRQ_GPIO0_INPUT,
};

+enum axp192_irqs {
+ AXP192_IRQ_ACIN_OVER_V = 1,
+ AXP192_IRQ_ACIN_PLUGIN,
+ AXP192_IRQ_ACIN_REMOVAL,
+ AXP192_IRQ_VBUS_OVER_V,
+ AXP192_IRQ_VBUS_PLUGIN,
+ AXP192_IRQ_VBUS_REMOVAL,
+ AXP192_IRQ_VBUS_V_LOW,
+ AXP192_IRQ_BATT_PLUGIN,
+ AXP192_IRQ_BATT_REMOVAL,
+ AXP192_IRQ_BATT_ENT_ACT_MODE,
+ AXP192_IRQ_BATT_EXIT_ACT_MODE,
+ AXP192_IRQ_CHARG,
+ AXP192_IRQ_CHARG_DONE,
+ AXP192_IRQ_BATT_TEMP_HIGH,
+ AXP192_IRQ_BATT_TEMP_LOW,
+ AXP192_IRQ_DIE_TEMP_HIGH,
+ AXP192_IRQ_CHARG_I_LOW,
+ AXP192_IRQ_DCDC1_V_LONG,
+ AXP192_IRQ_DCDC2_V_LONG,
+ AXP192_IRQ_DCDC3_V_LONG,
+ AXP192_IRQ_PEK_SHORT = 22,
+ AXP192_IRQ_PEK_LONG,
+ AXP192_IRQ_N_OE_PWR_ON,
+ AXP192_IRQ_N_OE_PWR_OFF,
+ AXP192_IRQ_VBUS_VALID,
+ AXP192_IRQ_VBUS_NOT_VALID,
+ AXP192_IRQ_VBUS_SESS_VALID,
+ AXP192_IRQ_VBUS_SESS_END,
+ AXP192_IRQ_LOW_PWR_LVL = 31,
+ AXP192_IRQ_TIMER,
+ AXP192_IRQ_GPIO2_INPUT = 37,
+ AXP192_IRQ_GPIO1_INPUT,
+ AXP192_IRQ_GPIO0_INPUT,
+};
+
enum {
AXP20X_IRQ_ACIN_OVER_V = 1,
AXP20X_IRQ_ACIN_PLUGIN,
--
2.35.1