3  * AXP20x PMIC USB power supply status driver
26 #define DRVNAME "axp20x-usb-power-supply"
79 static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power)  in axp20x_usb_vbus_needs_polling()  argument
86 	if (power->axp_data->vbus_needs_polling && !power->online)  in axp20x_usb_vbus_needs_polling()
94 	struct axp20x_usb_power *power = devid;  in axp20x_usb_power_irq()  local
96 	power_supply_changed(power->supply);  in axp20x_usb_power_irq()
98 	mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME);  in axp20x_usb_power_irq()
105 	struct axp20x_usb_power *power =  in axp20x_usb_power_poll_vbus()  local
110 	ret = regmap_read(power->regmap, AXP20X_PWR_INPUT_STATUS, &val);  in axp20x_usb_power_poll_vbus()
115 	if (val != power->old_status)  in axp20x_usb_power_poll_vbus()
116 		power_supply_changed(power->supply);  in axp20x_usb_power_poll_vbus()
118 	power->old_status = val;  in axp20x_usb_power_poll_vbus()
119 	power->online = val & AXP20X_PWR_STATUS_VBUS_USED;  in axp20x_usb_power_poll_vbus()
122 	if (axp20x_usb_vbus_needs_polling(power))  in axp20x_usb_power_poll_vbus()
123 		mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME);  in axp20x_usb_power_poll_vbus()
129 	struct axp20x_usb_power *power = power_supply_get_drvdata(psy);  in axp20x_usb_power_get_property()  local
135 		ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);  in axp20x_usb_power_get_property()
143 			ret = iio_read_channel_processed(power->vbus_v,  in axp20x_usb_power_get_property()
149 			 * IIO framework gives mV but Power Supply framework  in axp20x_usb_power_get_property()
156 		ret = axp20x_read_variable_width(power->regmap,  in axp20x_usb_power_get_property()
164 		ret = regmap_field_read(power->curr_lim_fld, &v);  in axp20x_usb_power_get_property()
168 		val->intval = power->axp_data->curr_lim_table[v];  in axp20x_usb_power_get_property()
172 			ret = iio_read_channel_processed(power->vbus_i,  in axp20x_usb_power_get_property()
178 			 * IIO framework gives mA but Power Supply framework  in axp20x_usb_power_get_property()
185 		ret = axp20x_read_variable_width(power->regmap,  in axp20x_usb_power_get_property()
197 	ret = regmap_read(power->regmap, AXP20X_PWR_INPUT_STATUS, &input);  in axp20x_usb_power_get_property()
210 		if (power->vbus_valid_bit) {  in axp20x_usb_power_get_property()
211 			ret = regmap_field_read(power->vbus_valid_bit, &v);  in axp20x_usb_power_get_property()
233 static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power,  in axp20x_usb_power_set_voltage_min()  argument
248 		return regmap_update_bits(power->regmap,  in axp20x_usb_power_set_voltage_min()
259 static int axp20x_usb_power_set_current_max(struct axp20x_usb_power *power, int intval)  in axp20x_usb_power_set_current_max()  argument
261 	const unsigned int max = GENMASK(power->axp_data->curr_lim_fld.msb,  in axp20x_usb_power_set_current_max()
262 					 power->axp_data->curr_lim_fld.lsb);  in axp20x_usb_power_set_current_max()
268 		if (power->axp_data->curr_lim_table[i] == intval)  in axp20x_usb_power_set_current_max()
269 			return regmap_field_write(power->curr_lim_fld, i);  in axp20x_usb_power_set_current_max()
278 	struct axp20x_usb_power *power = power_supply_get_drvdata(psy);  in axp20x_usb_power_set_property()  local
282 		if (!power->vbus_disable_bit)  in axp20x_usb_power_set_property()
285 		return regmap_field_write(power->vbus_disable_bit, !val->intval);  in axp20x_usb_power_set_property()
288 		return axp20x_usb_power_set_voltage_min(power, val->intval);  in axp20x_usb_power_set_property()
291 		return axp20x_usb_power_set_current_max(power, val->intval);  in axp20x_usb_power_set_property()
303 	struct axp20x_usb_power *power = power_supply_get_drvdata(psy);  in axp20x_usb_power_prop_writeable()  local
313 		return power->vbus_disable_bit != NULL;  in axp20x_usb_power_prop_writeable()
449 	struct axp20x_usb_power *power = dev_get_drvdata(dev);  in axp20x_usb_power_suspend()  local
458 	if (device_may_wakeup(&power->supply->dev))  in axp20x_usb_power_suspend()
459 		enable_irq_wake(power->irqs[i++]);  in axp20x_usb_power_suspend()
460 	while (i < power->num_irqs)  in axp20x_usb_power_suspend()
461 		disable_irq(power->irqs[i++]);  in axp20x_usb_power_suspend()
468 	struct axp20x_usb_power *power = dev_get_drvdata(dev);  in axp20x_usb_power_resume()  local
471 	if (device_may_wakeup(&power->supply->dev))  in axp20x_usb_power_resume()
472 		disable_irq_wake(power->irqs[i++]);  in axp20x_usb_power_resume()
473 	while (i < power->num_irqs)  in axp20x_usb_power_resume()
474 		enable_irq(power->irqs[i++]);  in axp20x_usb_power_resume()
476 	mod_delayed_work(system_power_efficient_wq, &power->vbus_detect, DEBOUNCE_TIME);  in axp20x_usb_power_resume()
486 				  struct axp20x_usb_power *power)  in configure_iio_channels()  argument
488 	power->vbus_v = devm_iio_channel_get(&pdev->dev, "vbus_v");  in configure_iio_channels()
489 	if (IS_ERR(power->vbus_v)) {  in configure_iio_channels()
490 		if (PTR_ERR(power->vbus_v) == -ENODEV)  in configure_iio_channels()
492 		return PTR_ERR(power->vbus_v);  in configure_iio_channels()
495 	power->vbus_i = devm_iio_channel_get(&pdev->dev, "vbus_i");  in configure_iio_channels()
496 	if (IS_ERR(power->vbus_i)) {  in configure_iio_channels()
497 		if (PTR_ERR(power->vbus_i) == -ENODEV)  in configure_iio_channels()
499 		return PTR_ERR(power->vbus_i);  in configure_iio_channels()
505 static int configure_adc_registers(struct axp20x_usb_power *power)  in configure_adc_registers()  argument
508 	return regmap_update_bits(power->regmap, AXP20X_ADC_EN1,  in configure_adc_registers()
539 	struct axp20x_usb_power *power;  in axp20x_usb_power_probe()  local
553 	power = devm_kzalloc(&pdev->dev,  in axp20x_usb_power_probe()
554 			     struct_size(power, irqs, axp_data->num_irq_names),  in axp20x_usb_power_probe()
556 	if (!power)  in axp20x_usb_power_probe()
559 	platform_set_drvdata(pdev, power);  in axp20x_usb_power_probe()
561 	power->axp_data = axp_data;  in axp20x_usb_power_probe()
562 	power->regmap = axp20x->regmap;  in axp20x_usb_power_probe()
563 	power->num_irqs = axp_data->num_irq_names;  in axp20x_usb_power_probe()
565 	power->curr_lim_fld = devm_regmap_field_alloc(&pdev->dev, power->regmap,  in axp20x_usb_power_probe()
567 	if (IS_ERR(power->curr_lim_fld))  in axp20x_usb_power_probe()
568 		return PTR_ERR(power->curr_lim_fld);  in axp20x_usb_power_probe()
570 	ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap,  in axp20x_usb_power_probe()
572 						 &power->vbus_valid_bit);  in axp20x_usb_power_probe()
576 	ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap,  in axp20x_usb_power_probe()
578 						 &power->vbus_mon_bit);  in axp20x_usb_power_probe()
582 	ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap,  in axp20x_usb_power_probe()
584 						 &power->usb_bc_en_bit);  in axp20x_usb_power_probe()
588 	ret = axp20x_regmap_field_alloc_optional(&pdev->dev, power->regmap,  in axp20x_usb_power_probe()
590 						 &power->vbus_disable_bit);  in axp20x_usb_power_probe()
594 	ret = devm_delayed_work_autocancel(&pdev->dev, &power->vbus_detect,  in axp20x_usb_power_probe()
599 	if (power->vbus_mon_bit) {  in axp20x_usb_power_probe()
601 		ret = regmap_field_write(power->vbus_mon_bit, 1);  in axp20x_usb_power_probe()
606 			ret = configure_iio_channels(pdev, power);  in axp20x_usb_power_probe()
608 			ret = configure_adc_registers(power);  in axp20x_usb_power_probe()
614 	if (power->usb_bc_en_bit) {  in axp20x_usb_power_probe()
616 		ret = regmap_field_write(power->usb_bc_en_bit, 1);  in axp20x_usb_power_probe()
622 	psy_cfg.drv_data = power;  in axp20x_usb_power_probe()
624 	power->supply = devm_power_supply_register(&pdev->dev,  in axp20x_usb_power_probe()
627 	if (IS_ERR(power->supply))  in axp20x_usb_power_probe()
628 		return PTR_ERR(power->supply);  in axp20x_usb_power_probe()
636 		power->irqs[i] = regmap_irq_get_virq(axp20x->regmap_irqc, irq);  in axp20x_usb_power_probe()
637 		ret = devm_request_any_context_irq(&pdev->dev, power->irqs[i],  in axp20x_usb_power_probe()
639 						   DRVNAME, power);  in axp20x_usb_power_probe()
647 	if (axp20x_usb_vbus_needs_polling(power))  in axp20x_usb_power_probe()
648 		queue_delayed_work(system_power_efficient_wq, &power->vbus_detect, 0);  in axp20x_usb_power_probe()
655 		.compatible = "x-powers,axp192-usb-power-supply",
658 		.compatible = "x-powers,axp202-usb-power-supply",
661 		.compatible = "x-powers,axp221-usb-power-supply",
664 		.compatible = "x-powers,axp223-usb-power-supply",
667 		.compatible = "x-powers,axp813-usb-power-supply",
685 MODULE_DESCRIPTION("AXP20x PMIC USB power supply status driver");