3  * AXP20x PMIC USB power supply status driver
25 #define DRVNAME "axp20x-usb-power-supply"
70 	struct axp20x_usb_power *power = devid;  in axp20x_usb_power_irq()  local
72 	power_supply_changed(power->supply);  in axp20x_usb_power_irq()
79 	struct axp20x_usb_power *power =  in axp20x_usb_power_poll_vbus()  local
84 	ret = regmap_read(power->regmap, AXP20X_PWR_INPUT_STATUS, &val);  in axp20x_usb_power_poll_vbus()
89 	if (val != power->old_status)  in axp20x_usb_power_poll_vbus()
90 		power_supply_changed(power->supply);  in axp20x_usb_power_poll_vbus()
92 	power->old_status = val;  in axp20x_usb_power_poll_vbus()
95 	mod_delayed_work(system_wq, &power->vbus_detect, DEBOUNCE_TIME);  in axp20x_usb_power_poll_vbus()
98 static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power)  in axp20x_usb_vbus_needs_polling()  argument
100 	if (power->axp20x_id >= AXP221_ID)  in axp20x_usb_vbus_needs_polling()
106 static int axp20x_get_current_max(struct axp20x_usb_power *power, int *val)  in axp20x_get_current_max()  argument
109 	int ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);  in axp20x_get_current_max()
116 		if (power->axp20x_id == AXP221_ID)  in axp20x_get_current_max()
135 static int axp813_get_current_max(struct axp20x_usb_power *power, int *val)  in axp813_get_current_max()  argument
138 	int ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);  in axp813_get_current_max()
163 	struct axp20x_usb_power *power = power_supply_get_drvdata(psy);  in axp20x_usb_power_get_property()  local
169 		ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);  in axp20x_usb_power_get_property()
177 			ret = iio_read_channel_processed(power->vbus_v,  in axp20x_usb_power_get_property()
183 			 * IIO framework gives mV but Power Supply framework  in axp20x_usb_power_get_property()
190 		ret = axp20x_read_variable_width(power->regmap,  in axp20x_usb_power_get_property()
198 		if (power->axp20x_id == AXP813_ID)  in axp20x_usb_power_get_property()
199 			return axp813_get_current_max(power, &val->intval);  in axp20x_usb_power_get_property()
200 		return axp20x_get_current_max(power, &val->intval);  in axp20x_usb_power_get_property()
203 			ret = iio_read_channel_processed(power->vbus_i,  in axp20x_usb_power_get_property()
209 			 * IIO framework gives mA but Power Supply framework  in axp20x_usb_power_get_property()
216 		ret = axp20x_read_variable_width(power->regmap,  in axp20x_usb_power_get_property()
228 	ret = regmap_read(power->regmap, AXP20X_PWR_INPUT_STATUS, &input);  in axp20x_usb_power_get_property()
241 		if (power->axp20x_id == AXP202_ID) {  in axp20x_usb_power_get_property()
242 			ret = regmap_read(power->regmap,  in axp20x_usb_power_get_property()
265 static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power,  in axp20x_usb_power_set_voltage_min()  argument
280 		return regmap_update_bits(power->regmap,  in axp20x_usb_power_set_voltage_min()
291 static int axp813_usb_power_set_current_max(struct axp20x_usb_power *power,  in axp813_usb_power_set_current_max()  argument
298 		return regmap_update_bits(power->regmap,  in axp813_usb_power_set_current_max()
306 		return regmap_update_bits(power->regmap,  in axp813_usb_power_set_current_max()
316 static int axp20x_usb_power_set_current_max(struct axp20x_usb_power *power,  in axp20x_usb_power_set_current_max()  argument
323 		if (power->axp20x_id == AXP221_ID)  in axp20x_usb_power_set_current_max()
329 		return regmap_update_bits(power->regmap,  in axp20x_usb_power_set_current_max()
343 	struct axp20x_usb_power *power = power_supply_get_drvdata(psy);  in axp20x_usb_power_set_property()  local
347 		return axp20x_usb_power_set_voltage_min(power, val->intval);  in axp20x_usb_power_set_property()
350 		if (power->axp20x_id == AXP813_ID)  in axp20x_usb_power_set_property()
351 			return axp813_usb_power_set_current_max(power,  in axp20x_usb_power_set_property()
353 		return axp20x_usb_power_set_current_max(power, val->intval);  in axp20x_usb_power_set_property()
408 				  struct axp20x_usb_power *power)  in configure_iio_channels()  argument
410 	power->vbus_v = devm_iio_channel_get(&pdev->dev, "vbus_v");  in configure_iio_channels()
411 	if (IS_ERR(power->vbus_v)) {  in configure_iio_channels()
412 		if (PTR_ERR(power->vbus_v) == -ENODEV)  in configure_iio_channels()
414 		return PTR_ERR(power->vbus_v);  in configure_iio_channels()
417 	power->vbus_i = devm_iio_channel_get(&pdev->dev, "vbus_i");  in configure_iio_channels()
418 	if (IS_ERR(power->vbus_i)) {  in configure_iio_channels()
419 		if (PTR_ERR(power->vbus_i) == -ENODEV)  in configure_iio_channels()
421 		return PTR_ERR(power->vbus_i);  in configure_iio_channels()
427 static int configure_adc_registers(struct axp20x_usb_power *power)  in configure_adc_registers()  argument
430 	return regmap_update_bits(power->regmap, AXP20X_ADC_EN1,  in configure_adc_registers()
441 	struct axp20x_usb_power *power;  in axp20x_usb_power_probe()  local
458 	power = devm_kzalloc(&pdev->dev, sizeof(*power), GFP_KERNEL);  in axp20x_usb_power_probe()
459 	if (!power)  in axp20x_usb_power_probe()
462 	platform_set_drvdata(pdev, power);  in axp20x_usb_power_probe()
463 	power->axp20x_id = (enum axp20x_variants)of_device_get_match_data(  in axp20x_usb_power_probe()
466 	power->np = pdev->dev.of_node;  in axp20x_usb_power_probe()
467 	power->regmap = axp20x->regmap;  in axp20x_usb_power_probe()
469 	if (power->axp20x_id == AXP202_ID) {  in axp20x_usb_power_probe()
471 		ret = regmap_update_bits(power->regmap, AXP20X_VBUS_MON,  in axp20x_usb_power_probe()
478 			ret = configure_iio_channels(pdev, power);  in axp20x_usb_power_probe()
480 			ret = configure_adc_registers(power);  in axp20x_usb_power_probe()
487 	} else if (power->axp20x_id == AXP221_ID ||  in axp20x_usb_power_probe()
488 		   power->axp20x_id == AXP223_ID ||  in axp20x_usb_power_probe()
489 		   power->axp20x_id == AXP813_ID) {  in axp20x_usb_power_probe()
499 	psy_cfg.drv_data = power;  in axp20x_usb_power_probe()
501 	power->supply = devm_power_supply_register(&pdev->dev, usb_power_desc,  in axp20x_usb_power_probe()
503 	if (IS_ERR(power->supply))  in axp20x_usb_power_probe()
504 		return PTR_ERR(power->supply);  in axp20x_usb_power_probe()
516 				axp20x_usb_power_irq, 0, DRVNAME, power);  in axp20x_usb_power_probe()
522 	INIT_DELAYED_WORK(&power->vbus_detect, axp20x_usb_power_poll_vbus);  in axp20x_usb_power_probe()
523 	if (axp20x_usb_vbus_needs_polling(power))  in axp20x_usb_power_probe()
524 		queue_delayed_work(system_wq, &power->vbus_detect, 0);  in axp20x_usb_power_probe()
531 	struct axp20x_usb_power *power = platform_get_drvdata(pdev);  in axp20x_usb_power_remove()  local
533 	cancel_delayed_work_sync(&power->vbus_detect);  in axp20x_usb_power_remove()
540 		.compatible = "x-powers,axp202-usb-power-supply",
543 		.compatible = "x-powers,axp221-usb-power-supply",
546 		.compatible = "x-powers,axp223-usb-power-supply",
549 		.compatible = "x-powers,axp813-usb-power-supply",
567 MODULE_DESCRIPTION("AXP20x PMIC USB power supply status driver");