summaryrefslogtreecommitdiffstats
path: root/drivers/power/supply/axp20x_usb_power.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/power/supply/axp20x_usb_power.c')
-rw-r--r--drivers/power/supply/axp20x_usb_power.c690
1 files changed, 690 insertions, 0 deletions
diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c
new file mode 100644
index 000000000..a1e6d1d44
--- /dev/null
+++ b/drivers/power/supply/axp20x_usb_power.c
@@ -0,0 +1,690 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * AXP20x PMIC USB power supply status driver
+ *
+ * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com>
+ * Copyright (C) 2014 Bruno Prémont <bonbons@linux-vserver.org>
+ */
+
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/devm-helpers.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/axp20x.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/power_supply.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/iio/consumer.h>
+#include <linux/workqueue.h>
+
+#define DRVNAME "axp20x-usb-power-supply"
+
+#define AXP20X_PWR_STATUS_VBUS_PRESENT BIT(5)
+#define AXP20X_PWR_STATUS_VBUS_USED BIT(4)
+
+#define AXP20X_USB_STATUS_VBUS_VALID BIT(2)
+
+#define AXP20X_VBUS_PATH_SEL BIT(7)
+#define AXP20X_VBUS_PATH_SEL_OFFSET 7
+
+#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
+#define AXP20X_VBUS_CLIMIT_MASK 3
+#define AXP20X_VBUS_CLIMIT_900mA 0
+#define AXP20X_VBUS_CLIMIT_500mA 1
+#define AXP20X_VBUS_CLIMIT_100mA 2
+#define AXP20X_VBUS_CLIMIT_NONE 3
+
+#define AXP813_VBUS_CLIMIT_900mA 0
+#define AXP813_VBUS_CLIMIT_1500mA 1
+#define AXP813_VBUS_CLIMIT_2000mA 2
+#define AXP813_VBUS_CLIMIT_2500mA 3
+
+#define AXP20X_ADC_EN1_VBUS_CURR BIT(2)
+#define AXP20X_ADC_EN1_VBUS_VOLT BIT(3)
+
+#define AXP20X_VBUS_MON_VBUS_VALID BIT(3)
+
+#define AXP813_BC_EN BIT(0)
+
+/*
+ * Note do not raise the debounce time, we must report Vusb high within
+ * 100ms otherwise we get Vbus errors in musb.
+ */
+#define DEBOUNCE_TIME msecs_to_jiffies(50)
+
+struct axp20x_usb_power {
+ struct regmap *regmap;
+ struct power_supply *supply;
+ enum axp20x_variants axp20x_id;
+ struct iio_channel *vbus_v;
+ struct iio_channel *vbus_i;
+ struct delayed_work vbus_detect;
+ unsigned int old_status;
+ unsigned int online;
+ unsigned int num_irqs;
+ unsigned int irqs[];
+};
+
+static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power)
+{
+ /*
+ * Polling is only necessary while VBUS is offline. While online, a
+ * present->absent transition implies an online->offline transition
+ * and will trigger the VBUS_REMOVAL IRQ.
+ */
+ if (power->axp20x_id >= AXP221_ID && !power->online)
+ return true;
+
+ return false;
+}
+
+static irqreturn_t axp20x_usb_power_irq(int irq, void *devid)
+{
+ struct axp20x_usb_power *power = devid;
+
+ power_supply_changed(power->supply);
+
+ mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME);
+
+ return IRQ_HANDLED;
+}
+
+static void axp20x_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, AXP20X_PWR_INPUT_STATUS, &val);
+ if (ret)
+ goto out;
+
+ val &= (AXP20X_PWR_STATUS_VBUS_PRESENT | AXP20X_PWR_STATUS_VBUS_USED);
+ if (val != power->old_status)
+ power_supply_changed(power->supply);
+
+ power->old_status = val;
+ power->online = val & AXP20X_PWR_STATUS_VBUS_USED;
+
+out:
+ if (axp20x_usb_vbus_needs_polling(power))
+ mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME);
+}
+
+static int axp20x_get_current_max(struct axp20x_usb_power *power, int *val)
+{
+ unsigned int v;
+ int ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);
+
+ if (ret)
+ return ret;
+
+ switch (v & AXP20X_VBUS_CLIMIT_MASK) {
+ case AXP20X_VBUS_CLIMIT_100mA:
+ if (power->axp20x_id == AXP221_ID)
+ *val = -1; /* No 100mA limit */
+ else
+ *val = 100000;
+ break;
+ case AXP20X_VBUS_CLIMIT_500mA:
+ *val = 500000;
+ break;
+ case AXP20X_VBUS_CLIMIT_900mA:
+ *val = 900000;
+ break;
+ case AXP20X_VBUS_CLIMIT_NONE:
+ *val = -1;
+ break;
+ }
+
+ return 0;
+}
+
+static int axp813_get_current_max(struct axp20x_usb_power *power, int *val)
+{
+ unsigned int v;
+ int ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);
+
+ if (ret)
+ return ret;
+
+ switch (v & AXP20X_VBUS_CLIMIT_MASK) {
+ case AXP813_VBUS_CLIMIT_900mA:
+ *val = 900000;
+ break;
+ case AXP813_VBUS_CLIMIT_1500mA:
+ *val = 1500000;
+ break;
+ case AXP813_VBUS_CLIMIT_2000mA:
+ *val = 2000000;
+ break;
+ case AXP813_VBUS_CLIMIT_2500mA:
+ *val = 2500000;
+ break;
+ }
+ return 0;
+}
+
+static int axp20x_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 input, v;
+ int ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);
+ if (ret)
+ return ret;
+
+ val->intval = AXP20X_VBUS_VHOLD_uV(v);
+ return 0;
+ 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,
+ AXP20X_VBUS_V_ADC_H, 12);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret * 1700; /* 1 step = 1.7 mV */
+ return 0;
+ case POWER_SUPPLY_PROP_CURRENT_MAX:
+ if (power->axp20x_id == AXP813_ID)
+ return axp813_get_current_max(power, &val->intval);
+ return axp20x_get_current_max(power, &val->intval);
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ if (IS_ENABLED(CONFIG_AXP20X_ADC)) {
+ ret = iio_read_channel_processed(power->vbus_i,
+ &val->intval);
+ if (ret)
+ return ret;
+
+ /*
+ * IIO framework gives mA but Power Supply framework
+ * gives uA.
+ */
+ val->intval *= 1000;
+ return 0;
+ }
+
+ ret = axp20x_read_variable_width(power->regmap,
+ AXP20X_VBUS_I_ADC_H, 12);
+ if (ret < 0)
+ return ret;
+
+ val->intval = ret * 375; /* 1 step = 0.375 mA */
+ return 0;
+ default:
+ break;
+ }
+
+ /* All the properties below need the input-status reg value */
+ ret = regmap_read(power->regmap, AXP20X_PWR_INPUT_STATUS, &input);
+ if (ret)
+ return ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_HEALTH:
+ if (!(input & AXP20X_PWR_STATUS_VBUS_PRESENT)) {
+ val->intval = POWER_SUPPLY_HEALTH_UNKNOWN;
+ break;
+ }
+
+ val->intval = POWER_SUPPLY_HEALTH_GOOD;
+
+ if (power->axp20x_id == AXP202_ID) {
+ ret = regmap_read(power->regmap,
+ AXP20X_USB_OTG_STATUS, &v);
+ if (ret)
+ return ret;
+
+ if (!(v & AXP20X_USB_STATUS_VBUS_VALID))
+ val->intval =
+ POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+ }
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = !!(input & AXP20X_PWR_STATUS_VBUS_PRESENT);
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = !!(input & AXP20X_PWR_STATUS_VBUS_USED);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int axp813_usb_power_set_online(struct axp20x_usb_power *power,
+ int intval)
+{
+ int val = !intval << AXP20X_VBUS_PATH_SEL_OFFSET;
+
+ return regmap_update_bits(power->regmap,
+ AXP20X_VBUS_IPSOUT_MGMT,
+ AXP20X_VBUS_PATH_SEL, val);
+}
+
+static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power,
+ int intval)
+{
+ int val;
+
+ switch (intval) {
+ case 4000000:
+ case 4100000:
+ case 4200000:
+ case 4300000:
+ case 4400000:
+ case 4500000:
+ case 4600000:
+ case 4700000:
+ val = (intval - 4000000) / 100000;
+ return regmap_update_bits(power->regmap,
+ AXP20X_VBUS_IPSOUT_MGMT,
+ AXP20X_VBUS_VHOLD_MASK,
+ val << AXP20X_VBUS_VHOLD_OFFSET);
+ default:
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}
+
+static int axp813_usb_power_set_current_max(struct axp20x_usb_power *power,
+ int intval)
+{
+ int val;
+
+ switch (intval) {
+ case 900000:
+ return regmap_update_bits(power->regmap,
+ AXP20X_VBUS_IPSOUT_MGMT,
+ AXP20X_VBUS_CLIMIT_MASK,
+ AXP813_VBUS_CLIMIT_900mA);
+ case 1500000:
+ case 2000000:
+ case 2500000:
+ val = (intval - 1000000) / 500000;
+ return regmap_update_bits(power->regmap,
+ AXP20X_VBUS_IPSOUT_MGMT,
+ AXP20X_VBUS_CLIMIT_MASK, val);
+ default:
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}
+
+static int axp20x_usb_power_set_current_max(struct axp20x_usb_power *power,
+ int intval)
+{
+ int val;
+
+ switch (intval) {
+ case 100000:
+ if (power->axp20x_id == AXP221_ID)
+ return -EINVAL;
+ fallthrough;
+ case 500000:
+ case 900000:
+ val = (900000 - intval) / 400000;
+ return regmap_update_bits(power->regmap,
+ AXP20X_VBUS_IPSOUT_MGMT,
+ AXP20X_VBUS_CLIMIT_MASK, val);
+ default:
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}
+
+static int axp20x_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_ONLINE:
+ if (power->axp20x_id != AXP813_ID)
+ return -EINVAL;
+ return axp813_usb_power_set_online(power, val->intval);
+
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ return axp20x_usb_power_set_voltage_min(power, val->intval);
+
+ case POWER_SUPPLY_PROP_CURRENT_MAX:
+ if (power->axp20x_id == AXP813_ID)
+ return axp813_usb_power_set_current_max(power,
+ val->intval);
+ return axp20x_usb_power_set_current_max(power, val->intval);
+
+ default:
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}
+
+static int axp20x_usb_power_prop_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ struct axp20x_usb_power *power = power_supply_get_drvdata(psy);
+
+ /*
+ * The VBUS path select flag works differently on AXP288 and newer:
+ * - On AXP20x and AXP22x, the flag enables VBUS (ignoring N_VBUSEN).
+ * - On AXP288 and AXP8xx, the flag disables VBUS (ignoring N_VBUSEN).
+ * We only expose the control on variants where it can be used to force
+ * the VBUS input offline.
+ */
+ if (psp == POWER_SUPPLY_PROP_ONLINE)
+ return power->axp20x_id == AXP813_ID;
+
+ return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN ||
+ psp == POWER_SUPPLY_PROP_CURRENT_MAX;
+}
+
+static enum power_supply_property axp20x_usb_power_properties[] = {
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+};
+
+static enum power_supply_property axp22x_usb_power_properties[] = {
+ POWER_SUPPLY_PROP_HEALTH,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_CURRENT_MAX,
+};
+
+static const struct power_supply_desc axp20x_usb_power_desc = {
+ .name = "axp20x-usb",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .properties = axp20x_usb_power_properties,
+ .num_properties = ARRAY_SIZE(axp20x_usb_power_properties),
+ .property_is_writeable = axp20x_usb_power_prop_writeable,
+ .get_property = axp20x_usb_power_get_property,
+ .set_property = axp20x_usb_power_set_property,
+};
+
+static const struct power_supply_desc axp22x_usb_power_desc = {
+ .name = "axp20x-usb",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .properties = axp22x_usb_power_properties,
+ .num_properties = ARRAY_SIZE(axp22x_usb_power_properties),
+ .property_is_writeable = axp20x_usb_power_prop_writeable,
+ .get_property = axp20x_usb_power_get_property,
+ .set_property = axp20x_usb_power_set_property,
+};
+
+static const char * const axp20x_irq_names[] = {
+ "VBUS_PLUGIN",
+ "VBUS_REMOVAL",
+ "VBUS_VALID",
+ "VBUS_NOT_VALID",
+};
+
+static const char * const axp22x_irq_names[] = {
+ "VBUS_PLUGIN",
+ "VBUS_REMOVAL",
+};
+
+struct axp_data {
+ const struct power_supply_desc *power_desc;
+ const char * const *irq_names;
+ unsigned int num_irq_names;
+ enum axp20x_variants axp20x_id;
+};
+
+static const struct axp_data axp202_data = {
+ .power_desc = &axp20x_usb_power_desc,
+ .irq_names = axp20x_irq_names,
+ .num_irq_names = ARRAY_SIZE(axp20x_irq_names),
+ .axp20x_id = AXP202_ID,
+};
+
+static const struct axp_data axp221_data = {
+ .power_desc = &axp22x_usb_power_desc,
+ .irq_names = axp22x_irq_names,
+ .num_irq_names = ARRAY_SIZE(axp22x_irq_names),
+ .axp20x_id = AXP221_ID,
+};
+
+static const struct axp_data axp223_data = {
+ .power_desc = &axp22x_usb_power_desc,
+ .irq_names = axp22x_irq_names,
+ .num_irq_names = ARRAY_SIZE(axp22x_irq_names),
+ .axp20x_id = AXP223_ID,
+};
+
+static const struct axp_data axp813_data = {
+ .power_desc = &axp22x_usb_power_desc,
+ .irq_names = axp22x_irq_names,
+ .num_irq_names = ARRAY_SIZE(axp22x_irq_names),
+ .axp20x_id = AXP813_ID,
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int axp20x_usb_power_suspend(struct device *dev)
+{
+ struct axp20x_usb_power *power = dev_get_drvdata(dev);
+ int i = 0;
+
+ /*
+ * Allow wake via VBUS_PLUGIN only.
+ *
+ * As nested threaded IRQs are not automatically disabled during
+ * suspend, we must explicitly disable the remainder of the IRQs.
+ */
+ if (device_may_wakeup(&power->supply->dev))
+ enable_irq_wake(power->irqs[i++]);
+ while (i < power->num_irqs)
+ disable_irq(power->irqs[i++]);
+
+ return 0;
+}
+
+static int axp20x_usb_power_resume(struct device *dev)
+{
+ struct axp20x_usb_power *power = dev_get_drvdata(dev);
+ int i = 0;
+
+ if (device_may_wakeup(&power->supply->dev))
+ disable_irq_wake(power->irqs[i++]);
+ while (i < power->num_irqs)
+ enable_irq(power->irqs[i++]);
+
+ mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME);
+
+ return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(axp20x_usb_power_pm_ops, axp20x_usb_power_suspend,
+ axp20x_usb_power_resume);
+
+static int 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);
+ }
+
+ power->vbus_i = devm_iio_channel_get(&pdev->dev, "vbus_i");
+ if (IS_ERR(power->vbus_i)) {
+ if (PTR_ERR(power->vbus_i) == -ENODEV)
+ return -EPROBE_DEFER;
+ return PTR_ERR(power->vbus_i);
+ }
+
+ return 0;
+}
+
+static int configure_adc_registers(struct axp20x_usb_power *power)
+{
+ /* Enable vbus voltage and current measurement */
+ return regmap_update_bits(power->regmap, AXP20X_ADC_EN1,
+ AXP20X_ADC_EN1_VBUS_CURR |
+ AXP20X_ADC_EN1_VBUS_VOLT,
+ AXP20X_ADC_EN1_VBUS_CURR |
+ AXP20X_ADC_EN1_VBUS_VOLT);
+}
+
+static int axp20x_usb_power_probe(struct platform_device *pdev)
+{
+ struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
+ struct power_supply_config psy_cfg = {};
+ struct axp20x_usb_power *power;
+ const struct axp_data *axp_data;
+ int i, irq, ret;
+
+ if (!of_device_is_available(pdev->dev.of_node))
+ return -ENODEV;
+
+ if (!axp20x) {
+ dev_err(&pdev->dev, "Parent drvdata not set\n");
+ return -EINVAL;
+ }
+
+ axp_data = of_device_get_match_data(&pdev->dev);
+
+ power = devm_kzalloc(&pdev->dev,
+ struct_size(power, irqs, axp_data->num_irq_names),
+ GFP_KERNEL);
+ if (!power)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, power);
+
+ power->axp20x_id = axp_data->axp20x_id;
+ power->regmap = axp20x->regmap;
+ power->num_irqs = axp_data->num_irq_names;
+
+ ret = devm_delayed_work_autocancel(&pdev->dev, &power->vbus_detect,
+ axp20x_usb_power_poll_vbus);
+ if (ret)
+ return ret;
+
+ if (power->axp20x_id == AXP202_ID) {
+ /* Enable vbus valid checking */
+ ret = regmap_update_bits(power->regmap, AXP20X_VBUS_MON,
+ AXP20X_VBUS_MON_VBUS_VALID,
+ AXP20X_VBUS_MON_VBUS_VALID);
+ if (ret)
+ return ret;
+
+ if (IS_ENABLED(CONFIG_AXP20X_ADC))
+ ret = configure_iio_channels(pdev, power);
+ else
+ ret = configure_adc_registers(power);
+
+ if (ret)
+ return ret;
+ }
+
+ if (power->axp20x_id == AXP813_ID) {
+ /* Enable USB Battery Charging specification detection */
+ ret = regmap_update_bits(axp20x->regmap, AXP288_BC_GLOBAL,
+ AXP813_BC_EN, AXP813_BC_EN);
+ if (ret)
+ return ret;
+ }
+
+ psy_cfg.of_node = pdev->dev.of_node;
+ psy_cfg.drv_data = power;
+
+ power->supply = devm_power_supply_register(&pdev->dev,
+ axp_data->power_desc,
+ &psy_cfg);
+ if (IS_ERR(power->supply))
+ return PTR_ERR(power->supply);
+
+ /* Request irqs after registering, as irqs may trigger immediately */
+ for (i = 0; i < axp_data->num_irq_names; i++) {
+ irq = platform_get_irq_byname(pdev, axp_data->irq_names[i]);
+ if (irq < 0)
+ return irq;
+
+ power->irqs[i] = regmap_irq_get_virq(axp20x->regmap_irqc, irq);
+ ret = devm_request_any_context_irq(&pdev->dev, power->irqs[i],
+ axp20x_usb_power_irq, 0,
+ DRVNAME, power);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Error requesting %s IRQ: %d\n",
+ axp_data->irq_names[i], ret);
+ return ret;
+ }
+ }
+
+ if (axp20x_usb_vbus_needs_polling(power))
+ queue_delayed_work(system_power_efficient_wq, &power->vbus_detect, 0);
+
+ return 0;
+}
+
+static const struct of_device_id axp20x_usb_power_match[] = {
+ {
+ .compatible = "x-powers,axp202-usb-power-supply",
+ .data = &axp202_data,
+ }, {
+ .compatible = "x-powers,axp221-usb-power-supply",
+ .data = &axp221_data,
+ }, {
+ .compatible = "x-powers,axp223-usb-power-supply",
+ .data = &axp223_data,
+ }, {
+ .compatible = "x-powers,axp813-usb-power-supply",
+ .data = &axp813_data,
+ }, { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, axp20x_usb_power_match);
+
+static struct platform_driver axp20x_usb_power_driver = {
+ .probe = axp20x_usb_power_probe,
+ .driver = {
+ .name = DRVNAME,
+ .of_match_table = axp20x_usb_power_match,
+ .pm = &axp20x_usb_power_pm_ops,
+ },
+};
+
+module_platform_driver(axp20x_usb_power_driver);
+
+MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
+MODULE_DESCRIPTION("AXP20x PMIC USB power supply status driver");
+MODULE_LICENSE("GPL");