[PATCH V2 11/15] mfd: axp20x: Add ADC, BAT, and USB cells for AXP717

Chris Morgan
2024-08-02T19:22:59Z

Add support for the AXP717 PMIC to utilize the ADC (for reading
voltage, current, and temperature information from the PMIC) as well
as the USB charger and battery.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
drivers/mfd/axp20x.c | 25 ++++++++++++++++++++++++-
include/linux/mfd/axp20x.h | 27 +++++++++++++++++++++++++++
2 files changed, 51 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
index dacd3c96c9f5..4051551757f2 100644
--- a/drivers/mfd/axp20x.c
+++ b/drivers/mfd/axp20x.c
@@ -209,13 +209,23 @@ static const struct regmap_access_table axp313a_volatile_table = {
};

static const struct regmap_range axp717_writeable_ranges[] = {
+ regmap_reg_range(AXP717_PMU_FAULT, AXP717_MODULE_EN_CONTROL_1),
+ regmap_reg_range(AXP717_MIN_SYS_V_CONTROL, AXP717_BOOST_CONTROL),
+ regmap_reg_range(AXP717_VSYS_V_POWEROFF, AXP717_VSYS_V_POWEROFF),
regmap_reg_range(AXP717_IRQ0_EN, AXP717_IRQ4_EN),
regmap_reg_range(AXP717_IRQ0_STATE, AXP717_IRQ4_STATE),
+ regmap_reg_range(AXP717_ICC_CHG_SET, AXP717_CV_CHG_SET),
regmap_reg_range(AXP717_DCDC_OUTPUT_CONTROL, AXP717_CPUSLDO_CONTROL),
+ regmap_reg_range(AXP717_ADC_CH_EN_CONTROL, AXP717_ADC_CH_EN_CONTROL),
+ regmap_reg_range(AXP717_ADC_DATA_SEL, AXP717_ADC_DATA_SEL),
};

static const struct regmap_range axp717_volatile_ranges[] = {
+ regmap_reg_range(AXP717_ON_INDICATE, AXP717_PMU_FAULT),
regmap_reg_range(AXP717_IRQ0_STATE, AXP717_IRQ4_STATE),
+ regmap_reg_range(AXP717_BATT_PERCENT_DATA, AXP717_BATT_PERCENT_DATA),
+ regmap_reg_range(AXP717_BATT_V_H, AXP717_BATT_CHRG_I_L),
+ regmap_reg_range(AXP717_ADC_DATA_H, AXP717_ADC_DATA_L),
};

static const struct regmap_access_table axp717_writeable_table = {
@@ -308,6 +318,12 @@ static const struct resource axp22x_usb_power_supply_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
};

+static const struct resource axp717_usb_power_supply_resources[] = {
+ DEFINE_RES_IRQ_NAMED(AXP717_IRQ_VBUS_OVER_V, "VBUS_OVER_V"),
+ DEFINE_RES_IRQ_NAMED(AXP717_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
+ DEFINE_RES_IRQ_NAMED(AXP717_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
+};
+
/* AXP803 and AXP813/AXP818 share the same interrupts */
static const struct resource axp803_usb_power_supply_resources[] = {
DEFINE_RES_IRQ_NAMED(AXP803_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
@@ -422,7 +438,7 @@ static const struct regmap_config axp717_regmap_config = {
.val_bits = 8,
.wr_table = &axp717_writeable_table,
.volatile_table = &axp717_volatile_table,
- .max_register = AXP717_CPUSLDO_CONTROL,
+ .max_register = AXP717_ADC_DATA_L,
.cache_type = REGCACHE_MAPLE,
};

@@ -1024,6 +1040,13 @@ static struct mfd_cell axp313a_cells[] = {
static struct mfd_cell axp717_cells[] = {
MFD_CELL_NAME("axp20x-regulator"),
MFD_CELL_RES("axp20x-pek", axp717_pek_resources),
+ MFD_CELL_OF("axp717-adc",
+ NULL, NULL, 0, 0, "x-powers,axp717-adc"),
+ MFD_CELL_OF("axp20x-usb-power-supply",
+ axp717_usb_power_supply_resources, NULL, 0, 0,
+ "x-powers,axp717-usb-power-supply"),
+ MFD_CELL_OF("axp20x-battery-power-supply",
+ NULL, NULL, 0, 0, "x-powers,axp717-battery-power-supply"),
};

static const struct resource axp288_adc_resources[] = {
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index 8c0a33a2e9ce..f4dfc1871a95 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -115,6 +115,16 @@ enum axp20x_variants {
#define AXP313A_IRQ_STATE 0x21

#define AXP717_ON_INDICATE 0x00
+#define AXP717_PMU_STATUS_2 0x01
+#define AXP717_BC_DETECT 0x05
+#define AXP717_PMU_FAULT 0x08
+#define AXP717_MODULE_EN_CONTROL_1 0x0b
+#define AXP717_MIN_SYS_V_CONTROL 0x15
+#define AXP717_INPUT_VOL_LIMIT_CTRL 0x16
+#define AXP717_INPUT_CUR_LIMIT_CTRL 0x17
+#define AXP717_MODULE_EN_CONTROL_2 0x19
+#define AXP717_BOOST_CONTROL 0x1e
+#define AXP717_VSYS_V_POWEROFF 0x24
#define AXP717_IRQ0_EN 0x40
#define AXP717_IRQ1_EN 0x41
#define AXP717_IRQ2_EN 0x42
@@ -125,6 +135,9 @@ enum axp20x_variants {
#define AXP717_IRQ2_STATE 0x4a
#define AXP717_IRQ3_STATE 0x4b
#define AXP717_IRQ4_STATE 0x4c
+#define AXP717_ICC_CHG_SET 0x62
+#define AXP717_ITERM_CHG_SET 0x63
+#define AXP717_CV_CHG_SET 0x64
#define AXP717_DCDC_OUTPUT_CONTROL 0x80
#define AXP717_DCDC1_CONTROL 0x83
#define AXP717_DCDC2_CONTROL 0x84
@@ -145,6 +158,19 @@ enum axp20x_variants {
#define AXP717_CLDO3_CONTROL 0x9d
#define AXP717_CLDO4_CONTROL 0x9e
#define AXP717_CPUSLDO_CONTROL 0x9f
+#define AXP717_BATT_PERCENT_DATA 0xa4
+#define AXP717_ADC_CH_EN_CONTROL 0xc0
+#define AXP717_BATT_V_H 0xc4
+#define AXP717_BATT_V_L 0xc5
+#define AXP717_VBUS_V_H 0xc6
+#define AXP717_VBUS_V_L 0xc7
+#define AXP717_VSYS_V_H 0xc8
+#define AXP717_VSYS_V_L 0xc9
+#define AXP717_BATT_CHRG_I_H 0xca
+#define AXP717_BATT_CHRG_I_L 0xcb
+#define AXP717_ADC_DATA_SEL 0xcd
+#define AXP717_ADC_DATA_H 0xce
+#define AXP717_ADC_DATA_L 0xcf

#define AXP806_STARTUP_SRC 0x00
#define AXP806_CHIP_ID 0x03
@@ -484,6 +510,7 @@ enum {
AXP717_CLDO3,
AXP717_CLDO4,
AXP717_CPUSLDO,
+ AXP717_BOOST,
AXP717_REG_ID_MAX,
};

--
2.34.1