211 static int twl4030_is_battery_present(struct twl4030_bci *bci)  in twl4030_is_battery_present()  argument
271 static int twl4030_charger_update_current(struct twl4030_bci *bci)  in twl4030_charger_update_current()  argument
284 	if (ac_available(bci->channel_vac)) {  in twl4030_charger_update_current()
285 		cur = bci->ac_cur;  in twl4030_charger_update_current()
286 		bci->ac_is_active = true;  in twl4030_charger_update_current()
288 		cur = bci->usb_cur;  in twl4030_charger_update_current()
289 		bci->ac_is_active = false;  in twl4030_charger_update_current()
290 		if (cur > bci->usb_cur_target) {  in twl4030_charger_update_current()
291 			cur = bci->usb_cur_target;  in twl4030_charger_update_current()
292 			bci->usb_cur = cur;  in twl4030_charger_update_current()
294 		if (cur < bci->usb_cur_target)  in twl4030_charger_update_current()
295 			schedule_delayed_work(&bci->current_worker, USB_CUR_DELAY);  in twl4030_charger_update_current()
299 	if (bci->ichg_eoc >= 200000)  in twl4030_charger_update_current()
301 	if (bci->ichg_lo >= 400000)  in twl4030_charger_update_current()
303 	if (bci->ichg_hi >= 820000)  in twl4030_charger_update_current()
328 	reg = ua2regval(bci->ichg_eoc, cgain);  in twl4030_charger_update_current()
340 	reg = ua2regval(bci->ichg_lo, cgain);  in twl4030_charger_update_current()
362 	reg = ua2regval(bci->ichg_hi, cgain);  in twl4030_charger_update_current()
436 	struct twl4030_bci *bci = container_of(data, struct twl4030_bci,  in twl4030_current_worker()  local
447 	dev_dbg(bci->dev, "v=%d cur=%d limit=%d target=%d\n", v, curr,  in twl4030_current_worker()
448 		bci->usb_cur, bci->usb_cur_target);  in twl4030_current_worker()
452 		bci->usb_cur -= USB_CUR_STEP;  in twl4030_current_worker()
453 		bci->usb_cur_target = bci->usb_cur;  in twl4030_current_worker()
454 	} else if (bci->usb_cur >= bci->usb_cur_target ||  in twl4030_current_worker()
455 		   bci->usb_cur + USB_CUR_STEP > USB_MAX_CURRENT) {  in twl4030_current_worker()
459 		bci->usb_cur += USB_CUR_STEP;  in twl4030_current_worker()
460 		schedule_delayed_work(&bci->current_worker, USB_CUR_DELAY);  in twl4030_current_worker()
462 	twl4030_charger_update_current(bci);  in twl4030_current_worker()
468 static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)  in twl4030_charger_enable_usb()  argument
472 	if (bci->usb_mode == CHARGE_OFF)  in twl4030_charger_enable_usb()
474 	if (enable && !IS_ERR_OR_NULL(bci->transceiver)) {  in twl4030_charger_enable_usb()
476 		twl4030_charger_update_current(bci);  in twl4030_charger_enable_usb()
479 		if (!bci->usb_enabled) {  in twl4030_charger_enable_usb()
480 			pm_runtime_get_sync(bci->transceiver->dev);  in twl4030_charger_enable_usb()
481 			bci->usb_enabled = 1;  in twl4030_charger_enable_usb()
484 		if (bci->usb_mode == CHARGE_AUTO)  in twl4030_charger_enable_usb()
491 		if (bci->usb_mode == CHARGE_LINEAR) {  in twl4030_charger_enable_usb()
520 		if (bci->usb_enabled) {  in twl4030_charger_enable_usb()
521 			pm_runtime_mark_last_busy(bci->transceiver->dev);  in twl4030_charger_enable_usb()
522 			pm_runtime_put_autosuspend(bci->transceiver->dev);  in twl4030_charger_enable_usb()
523 			bci->usb_enabled = 0;  in twl4030_charger_enable_usb()
525 		bci->usb_cur = 0;  in twl4030_charger_enable_usb()
534 static int twl4030_charger_enable_ac(struct twl4030_bci *bci, bool enable)  in twl4030_charger_enable_ac()  argument
538 	if (bci->ac_mode == CHARGE_OFF)  in twl4030_charger_enable_ac()
597 	struct twl4030_bci *bci = arg;  in twl4030_charger_interrupt()  local
599 	dev_dbg(bci->dev, "CHG_PRES irq\n");  in twl4030_charger_interrupt()
601 	bci->ac_cur = 500000;  in twl4030_charger_interrupt()
602 	twl4030_charger_update_current(bci);  in twl4030_charger_interrupt()
603 	power_supply_changed(bci->ac);  in twl4030_charger_interrupt()
604 	power_supply_changed(bci->usb);  in twl4030_charger_interrupt()
614 	struct twl4030_bci *bci = arg;  in twl4030_bci_interrupt()  local
628 	dev_dbg(bci->dev, "BCI irq %02x %02x\n", irqs2, irqs1);  in twl4030_bci_interrupt()
632 		power_supply_changed(bci->ac);  in twl4030_bci_interrupt()
633 		power_supply_changed(bci->usb);  in twl4030_bci_interrupt()
635 	twl4030_charger_update_current(bci);  in twl4030_bci_interrupt()
639 		dev_warn(bci->dev, "battery temperature out of range\n");  in twl4030_bci_interrupt()
642 		dev_crit(bci->dev, "battery disconnected\n");  in twl4030_bci_interrupt()
645 		dev_crit(bci->dev, "VBAT overvoltage\n");  in twl4030_bci_interrupt()
648 		dev_crit(bci->dev, "VBUS overvoltage\n");  in twl4030_bci_interrupt()
651 		dev_crit(bci->dev, "Ac charger overvoltage\n");  in twl4030_bci_interrupt()
663 	struct twl4030_bci *bci = dev_get_drvdata(dev->parent);  in twl4030_bci_max_current_store()  local
671 	if (dev == &bci->ac->dev)  in twl4030_bci_max_current_store()
672 		bci->ac_cur = cur;  in twl4030_bci_max_current_store()
674 		bci->usb_cur_target = cur;  in twl4030_bci_max_current_store()
676 	twl4030_charger_update_current(bci);  in twl4030_bci_max_current_store()
689 	struct twl4030_bci *bci = dev_get_drvdata(dev->parent);  in twl4030_bci_max_current_show()  local
691 	if (dev == &bci->ac->dev) {  in twl4030_bci_max_current_show()
692 		if (!bci->ac_is_active)  in twl4030_bci_max_current_show()
693 			cur = bci->ac_cur;  in twl4030_bci_max_current_show()
695 		if (bci->ac_is_active)  in twl4030_bci_max_current_show()
696 			cur = bci->usb_cur_target;  in twl4030_bci_max_current_show()
715 	struct twl4030_bci *bci = container_of(data, struct twl4030_bci, work);  in twl4030_bci_usb_work()  local
717 	switch (bci->event) {  in twl4030_bci_usb_work()
720 		twl4030_charger_enable_usb(bci, true);  in twl4030_bci_usb_work()
723 		twl4030_charger_enable_usb(bci, false);  in twl4030_bci_usb_work()
731 	struct twl4030_bci *bci = container_of(nb, struct twl4030_bci, usb_nb);  in twl4030_bci_usb_ncb()  local
733 	dev_dbg(bci->dev, "OTG notify %lu\n", val);  in twl4030_bci_usb_ncb()
737 		bci->usb_cur_target = 500000;  in twl4030_bci_usb_ncb()
739 		bci->usb_cur_target = 100000;  in twl4030_bci_usb_ncb()
741 	bci->event = val;  in twl4030_bci_usb_ncb()
742 	schedule_work(&bci->work);  in twl4030_bci_usb_ncb()
754 	struct twl4030_bci *bci = dev_get_drvdata(dev->parent);  in twl4030_bci_mode_store()  local
766 	if (dev == &bci->ac->dev) {  in twl4030_bci_mode_store()
769 		twl4030_charger_enable_ac(bci, false);  in twl4030_bci_mode_store()
770 		bci->ac_mode = mode;  in twl4030_bci_mode_store()
771 		status = twl4030_charger_enable_ac(bci, true);  in twl4030_bci_mode_store()
773 		twl4030_charger_enable_usb(bci, false);  in twl4030_bci_mode_store()
774 		bci->usb_mode = mode;  in twl4030_bci_mode_store()
775 		status = twl4030_charger_enable_usb(bci, true);  in twl4030_bci_mode_store()
787 	struct twl4030_bci *bci = dev_get_drvdata(dev->parent);  in twl4030_bci_mode_show()  local
790 	int mode = bci->usb_mode;  in twl4030_bci_mode_show()
792 	if (dev == &bci->ac->dev)  in twl4030_bci_mode_show()
793 		mode = bci->ac_mode;  in twl4030_bci_mode_show()
829 static int twl4030bci_state(struct twl4030_bci *bci)  in twl4030bci_state()  argument
840 	dev_dbg(bci->dev, "state: %02x\n", state);  in twl4030bci_state()
861 	struct twl4030_bci *bci = dev_get_drvdata(psy->dev.parent);  in twl4030_bci_get_property()  local
866 	state = twl4030bci_state(bci);  in twl4030_bci_get_property()
985 	struct twl4030_bci *bci;  in twl4030_bci_probe()  local
990 	bci = devm_kzalloc(&pdev->dev, sizeof(*bci), GFP_KERNEL);  in twl4030_bci_probe()
991 	if (bci == NULL)  in twl4030_bci_probe()
997 	bci->ichg_eoc = 80100; /* Stop charging when current drops to here */  in twl4030_bci_probe()
998 	bci->ichg_lo = 241000; /* Low threshold */  in twl4030_bci_probe()
999 	bci->ichg_hi = 500000; /* High threshold */  in twl4030_bci_probe()
1000 	bci->ac_cur = 500000; /* 500mA */  in twl4030_bci_probe()
1002 		bci->usb_cur_target = 500000;  /* 500mA */  in twl4030_bci_probe()
1004 		bci->usb_cur_target = 100000;  /* 100mA */  in twl4030_bci_probe()
1005 	bci->usb_mode = CHARGE_AUTO;  in twl4030_bci_probe()
1006 	bci->ac_mode = CHARGE_AUTO;  in twl4030_bci_probe()
1008 	bci->dev = &pdev->dev;  in twl4030_bci_probe()
1009 	bci->irq_chg = platform_get_irq(pdev, 0);  in twl4030_bci_probe()
1010 	bci->irq_bci = platform_get_irq(pdev, 1);  in twl4030_bci_probe()
1013 	ret = twl4030_is_battery_present(bci);  in twl4030_bci_probe()
1019 	platform_set_drvdata(pdev, bci);  in twl4030_bci_probe()
1021 	bci->ac = devm_power_supply_register(&pdev->dev, &twl4030_bci_ac_desc,  in twl4030_bci_probe()
1023 	if (IS_ERR(bci->ac)) {  in twl4030_bci_probe()
1024 		ret = PTR_ERR(bci->ac);  in twl4030_bci_probe()
1029 	bci->usb = devm_power_supply_register(&pdev->dev, &twl4030_bci_usb_desc,  in twl4030_bci_probe()
1031 	if (IS_ERR(bci->usb)) {  in twl4030_bci_probe()
1032 		ret = PTR_ERR(bci->usb);  in twl4030_bci_probe()
1037 	ret = devm_request_threaded_irq(&pdev->dev, bci->irq_chg, NULL,  in twl4030_bci_probe()
1039 			bci);  in twl4030_bci_probe()
1042 			bci->irq_chg, ret);  in twl4030_bci_probe()
1046 	ret = devm_request_threaded_irq(&pdev->dev, bci->irq_bci, NULL,  in twl4030_bci_probe()
1047 			twl4030_bci_interrupt, IRQF_ONESHOT, pdev->name, bci);  in twl4030_bci_probe()
1050 			bci->irq_bci, ret);  in twl4030_bci_probe()
1054 	bci->channel_vac = iio_channel_get(&pdev->dev, "vac");  in twl4030_bci_probe()
1055 	if (IS_ERR(bci->channel_vac)) {  in twl4030_bci_probe()
1056 		bci->channel_vac = NULL;  in twl4030_bci_probe()
1060 	INIT_WORK(&bci->work, twl4030_bci_usb_work);  in twl4030_bci_probe()
1061 	INIT_DELAYED_WORK(&bci->current_worker, twl4030_current_worker);  in twl4030_bci_probe()
1063 	bci->usb_nb.notifier_call = twl4030_bci_usb_ncb;  in twl4030_bci_probe()
1064 	if (bci->dev->of_node) {  in twl4030_bci_probe()
1067 		phynode = of_find_compatible_node(bci->dev->of_node->parent,  in twl4030_bci_probe()
1070 			bci->transceiver = devm_usb_get_phy_by_node(  in twl4030_bci_probe()
1071 				bci->dev, phynode, &bci->usb_nb);  in twl4030_bci_probe()
1090 	twl4030_charger_update_current(bci);  in twl4030_bci_probe()
1091 	if (device_create_file(&bci->usb->dev, &dev_attr_max_current))  in twl4030_bci_probe()
1093 	if (device_create_file(&bci->usb->dev, &dev_attr_mode))  in twl4030_bci_probe()
1095 	if (device_create_file(&bci->ac->dev, &dev_attr_mode))  in twl4030_bci_probe()
1097 	if (device_create_file(&bci->ac->dev, &dev_attr_max_current))  in twl4030_bci_probe()
1100 	twl4030_charger_enable_ac(bci, true);  in twl4030_bci_probe()
1101 	if (!IS_ERR_OR_NULL(bci->transceiver))  in twl4030_bci_probe()
1102 		twl4030_bci_usb_ncb(&bci->usb_nb,  in twl4030_bci_probe()
1103 				    bci->transceiver->last_event,  in twl4030_bci_probe()
1106 		twl4030_charger_enable_usb(bci, false);  in twl4030_bci_probe()
1115 	iio_channel_release(bci->channel_vac);  in twl4030_bci_probe()
1122 	struct twl4030_bci *bci = platform_get_drvdata(pdev);  in twl4030_bci_remove()  local
1124 	twl4030_charger_enable_ac(bci, false);  in twl4030_bci_remove()
1125 	twl4030_charger_enable_usb(bci, false);  in twl4030_bci_remove()
1128 	iio_channel_release(bci->channel_vac);  in twl4030_bci_remove()
1130 	device_remove_file(&bci->usb->dev, &dev_attr_max_current);  in twl4030_bci_remove()
1131 	device_remove_file(&bci->usb->dev, &dev_attr_mode);  in twl4030_bci_remove()
1132 	device_remove_file(&bci->ac->dev, &dev_attr_max_current);  in twl4030_bci_remove()
1133 	device_remove_file(&bci->ac->dev, &dev_attr_mode);  in twl4030_bci_remove()