@@ -30,8 +30,13 @@
#define AXP20X_PWR_STATUS_VBUS_PRESENT BIT(5)
#define AXP20X_PWR_STATUS_VBUS_USED BIT(4)
+#define AXP717_PWR_STATUS_VBUS_GOOD BIT(5)
+
#define AXP20X_USB_STATUS_VBUS_VALID BIT(2)
+#define AXP717_PMU_FAULT_VBUS BIT(5)
+#define AXP717_PMU_FAULT_VSYS BIT(3)
+
#define AXP20X_VBUS_VHOLD_uV(b) (4000000 + (((b) >> 3) & 7) * 100000)
#define AXP20X_VBUS_VHOLD_MASK GENMASK(5, 3)
#define AXP20X_VBUS_VHOLD_OFFSET 3
@@ -39,6 +44,12 @@
#define AXP20X_ADC_EN1_VBUS_CURR BIT(2)
#define AXP20X_ADC_EN1_VBUS_VOLT BIT(3)
+#define AXP717_INPUT_VOL_LIMIT_MASK GENMASK(3, 0)
+#define AXP717_INPUT_CUR_LIMIT_MASK GENMASK(5, 0)
+#define AXP717_ADC_DATA_MASK GENMASK(14, 0)
+
+#define AXP717_ADC_EN_VBUS_VOLT BIT(2)
+
/*
* Note do not raise the debounce time, we must report Vusb high within
* 100ms otherwise we get Vbus errors in musb.
@@ -143,6 +154,24 @@ static void axp20x_usb_power_poll_vbus(struct work_struct *work)
mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME);
}
+static void axp717_usb_power_poll_vbus(struct work_struct *work)
+{
+ struct axp20x_usb_power *power =
+ container_of(work, struct axp20x_usb_power, vbus_detect.work);
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(power->regmap, AXP717_ON_INDICATE, &val);
+ if (ret)
+ return;
+
+ val &= AXP717_PWR_STATUS_VBUS_GOOD;
+ if (val != power->old_status)
+ power_supply_changed(power->supply);
+
+ power->old_status = val;
+}
+
static int axp20x_get_usb_type(struct axp20x_usb_power *power,
union power_supply_propval *val)
{
@@ -288,6 +317,91 @@ static int axp20x_usb_power_get_property(struct power_supply *psy,
return 0;
}
+static int axp717_usb_power_get_property(struct power_supply *psy,
+ enum power_supply_property psp, union power_supply_propval *val)
+{
+ struct axp20x_usb_power *power = power_supply_get_drvdata(psy);
+ unsigned int v;
+ int ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_HEALTH:
+ val->intval = POWER_SUPPLY_HEALTH_GOOD;
+ ret = regmap_read(power->regmap, AXP717_ON_INDICATE, &v);
+ if (ret)
+ return ret;
+
+ if (!(v & AXP717_PWR_STATUS_VBUS_GOOD))
+ val->intval = POWER_SUPPLY_HEALTH_UNKNOWN;
+
+ ret = regmap_read(power->regmap, AXP717_PMU_FAULT_VBUS, &v);
+ if (ret)
+ return ret;
+
+ v &= (AXP717_PMU_FAULT_VBUS | AXP717_PMU_FAULT_VSYS);
+ if (v) {
+ val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
+ regmap_write(power->regmap, AXP717_PMU_FAULT_VBUS, v);
+ }
+
+ break;
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ ret = regmap_read(power->regmap, AXP717_INPUT_CUR_LIMIT_CTRL, &v);
+ if (ret)
+ return ret;
+
+ /* 50ma step size with 100ma offset. */
+ v &= AXP717_INPUT_CUR_LIMIT_MASK;
+ val->intval = (v * 50000) + 100000;
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ case POWER_SUPPLY_PROP_PRESENT:
+ ret = regmap_read(power->regmap, AXP717_ON_INDICATE, &v);
+ if (ret)
+ return ret;
+ val->intval = !!(v & AXP717_PWR_STATUS_VBUS_GOOD);
+ break;
+ case POWER_SUPPLY_PROP_USB_TYPE:
+ return axp20x_get_usb_type(power, val);
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ ret = regmap_read(power->regmap, AXP717_INPUT_VOL_LIMIT_CTRL, &v);
+ if (ret)
+ return ret;
+
+ /* 80mv step size with 3.88v offset. */
+ v &= AXP717_INPUT_VOL_LIMIT_MASK;
+ val->intval = (v * 80000) + 3880000;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ if (IS_ENABLED(CONFIG_AXP20X_ADC)) {
+ ret = iio_read_channel_processed(power->vbus_v,
+ &val->intval);
+ if (ret)
+ return ret;
+
+ /*
+ * IIO framework gives mV but Power Supply framework
+ * gives uV.
+ */
+ val->intval *= 1000;
+ return 0;
+ }
+
+ ret = axp20x_read_variable_width(power->regmap,
+ AXP717_VBUS_V_H, 16);
+ if (ret < 0)
+ return ret;
+
+ val->intval = (ret % AXP717_ADC_DATA_MASK) * 1000;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+
+}
+
static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power,
int intval)
{
@@ -314,6 +428,22 @@ static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power,
return -EINVAL;
}
+static int axp717_usb_power_set_voltage_min(struct axp20x_usb_power *power,
+ int intval)
+{
+ int val;
+
+ /* Minimum value of 3.88v and maximum of 5.08v. */
+ if (intval < 3880000 || intval > 5080000)
+ return -EINVAL;
+
+ /* step size of 80ma with 3.88v offset. */
+ val = (intval - 3880000) / 80000;
+ return regmap_update_bits(power->regmap,
+ AXP717_INPUT_VOL_LIMIT_CTRL,
+ AXP717_INPUT_VOL_LIMIT_MASK, val);
+}
+
static int axp20x_usb_power_set_input_current_limit(struct axp20x_usb_power *power,
int intval)
{
@@ -354,6 +484,29 @@ static int axp20x_usb_power_set_input_current_limit(struct axp20x_usb_power *pow
return regmap_field_write(power->curr_lim_fld, reg);
}
+static int axp717_usb_power_set_input_current_limit(struct axp20x_usb_power *power,
+ int intval)
+{
+ int tmp;
+
+ /* Minimum value of 100mA and maximum value of 3.25A*/
+ if (intval < 100000 || intval > 3250000)
+ return -EINVAL;
+
+ if (power->max_input_cur && (intval > power->max_input_cur)) {
+ dev_warn(power->dev,
+ "reqested current %d clamped to max current %d\n",
+ intval, power->max_input_cur);
+ intval = power->max_input_cur;
+ }
+
+ /* Minimum value of 100mA with step size of 50mA. */
+ tmp = (intval - 100000) / 50000;
+ return regmap_update_bits(power->regmap,
+ AXP717_INPUT_CUR_LIMIT_CTRL,
+ AXP717_INPUT_CUR_LIMIT_MASK, tmp);
+}
+
static int axp20x_usb_power_set_property(struct power_supply *psy,
enum power_supply_property psp,
const union power_supply_propval *val)
@@ -376,6 +529,24 @@ static int axp20x_usb_power_set_property(struct power_supply *psy,
default:
return -EINVAL;
}
+}
+
+static int axp717_usb_power_set_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct axp20x_usb_power *power = power_supply_get_drvdata(psy);
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ return axp717_usb_power_set_input_current_limit(power, val->intval);
+
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ return axp717_usb_power_set_voltage_min(power, val->intval);
+
+ default:
+ return -EINVAL;
+ }
return -EINVAL;
}
@@ -399,6 +570,13 @@ static int axp20x_usb_power_prop_writeable(struct power_supply *psy,
psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT;
}
+static int axp717_usb_power_prop_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN ||
+ psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT;
+}
+
static int axp20x_configure_iio_channels(struct platform_device *pdev,
struct axp20x_usb_power *power)
{
@@ -419,6 +597,19 @@ static int axp20x_configure_iio_channels(struct platform_device *pdev,
return 0;
}
+static int axp717_configure_iio_channels(struct platform_device *pdev,
+ struct axp20x_usb_power *power)
+{
+ power->vbus_v = devm_iio_channel_get(&pdev->dev, "vbus_v");
+ if (IS_ERR(power->vbus_v)) {
+ if (PTR_ERR(power->vbus_v) == -ENODEV)
+ return -EPROBE_DEFER;
+ return PTR_ERR(power->vbus_v);
+ }
+
+ return 0;
+}
+
static int axp20x_configure_adc_registers(struct axp20x_usb_power *power)
{
/* Enable vbus voltage and current measurement */
@@ -429,6 +620,14 @@ static int axp20x_configure_adc_registers(struct axp20x_usb_power *power)
AXP20X_ADC_EN1_VBUS_VOLT);
}
+static int axp717_configure_adc_registers(struct axp20x_usb_power *power)
+{
+ /* Enable vbus voltage measurement */
+ return regmap_update_bits(power->regmap, AXP717_ADC_CH_EN_CONTROL,
+ AXP717_ADC_EN_VBUS_VOLT,
+ AXP717_ADC_EN_VBUS_VOLT);
+}
+
static enum power_supply_property axp20x_usb_power_properties[] = {
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_PRESENT,
@@ -447,6 +646,16 @@ static enum power_supply_property axp22x_usb_power_properties[] = {
POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
};
+static enum power_supply_property axp717_usb_power_properties[] = {
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_USB_TYPE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+};
+
static enum power_supply_property axp813_usb_power_properties[] = {
POWER_SUPPLY_PROP_HEALTH,
POWER_SUPPLY_PROP_PRESENT,
@@ -483,6 +692,18 @@ static const struct power_supply_desc axp22x_usb_power_desc = {
.set_property = axp20x_usb_power_set_property,
};
+static const struct power_supply_desc axp717_usb_power_desc = {
+ .name = "axp20x-usb",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .properties = axp717_usb_power_properties,
+ .num_properties = ARRAY_SIZE(axp717_usb_power_properties),
+ .property_is_writeable = axp717_usb_power_prop_writeable,
+ .get_property = axp717_usb_power_get_property,
+ .set_property = axp717_usb_power_set_property,
+ .usb_types = axp813_usb_types,
+ .num_usb_types = ARRAY_SIZE(axp813_usb_types),
+};
+
static const struct power_supply_desc axp813_usb_power_desc = {
.name = "axp20x-usb",
.type = POWER_SUPPLY_TYPE_USB,
@@ -507,6 +728,12 @@ static const char * const axp22x_irq_names[] = {
"VBUS_REMOVAL",
};
+static const char * const axp717_irq_names[] = {
+ "VBUS_PLUGIN",
+ "VBUS_REMOVAL",
+ "VBUS_OVER_V",
+};
+
static int axp192_usb_curr_lim_table[] = {
-1,
-1,
@@ -594,6 +821,20 @@ static const struct axp_data axp223_data = {
.axp20x_cfg_adc_reg = axp20x_configure_adc_registers,
};
+static const struct axp_data axp717_data = {
+ .power_desc = &axp717_usb_power_desc,
+ .irq_names = axp717_irq_names,
+ .num_irq_names = ARRAY_SIZE(axp717_irq_names),
+ .curr_lim_fld = REG_FIELD(AXP717_INPUT_CUR_LIMIT_CTRL, 0, 5),
+ .usb_bc_en_bit = REG_FIELD(AXP717_MODULE_EN_CONTROL_1, 4, 4),
+ .usb_bc_det_fld = REG_FIELD(AXP717_BC_DETECT, 5, 7),
+ .vbus_mon_bit = REG_FIELD(AXP717_ADC_CH_EN_CONTROL, 2, 2),
+ .vbus_needs_polling = false,
+ .axp20x_read_vbus = &axp717_usb_power_poll_vbus,
+ .axp20x_cfg_iio_chan = axp717_configure_iio_channels,
+ .axp20x_cfg_adc_reg = axp717_configure_adc_registers,
+};
+
static const struct axp_data axp813_data = {
.power_desc = &axp813_usb_power_desc,
.irq_names = axp22x_irq_names,
@@ -821,6 +1062,9 @@ static const struct of_device_id axp20x_usb_power_match[] = {
}, {
.compatible = "x-powers,axp223-usb-power-supply",
.data = &axp223_data,
+ }, {
+ .compatible = "x-powers,axp717-usb-power-supply",
+ .data = &axp717_data,
}, {
.compatible = "x-powers,axp813-usb-power-supply",
.data = &axp813_data,