6  * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
18 #include <linux/extcon-provider.h>
128 		ret = regmap_read(ext->regmap, CHT_WC_USBSRC, &usbsrc);  in cht_wc_extcon_get_charger()
130 			dev_err(ext->dev, "Error reading usbsrc: %d\n", ret);  in cht_wc_extcon_get_charger()
147 			dev_warn(ext->dev, "Could not detect charger type\n");  in cht_wc_extcon_get_charger()
149 			dev_warn(ext->dev, "Timeout detecting charger type\n");  in cht_wc_extcon_get_charger()
156 		dev_warn(ext->dev,  in cht_wc_extcon_get_charger()
157 			"Unhandled charger type %d, defaulting to SDP\n",  in cht_wc_extcon_get_charger()
179 	ret = regmap_write(ext->regmap, CHT_WC_PHYCTRL, state);  in cht_wc_extcon_set_phymux()
181 		dev_err(ext->dev, "Error writing phyctrl: %d\n", ret);  in cht_wc_extcon_set_phymux()
197 	ret = regmap_write(ext->regmap, CHT_WC_VBUS_GPIO_CTLO, val);  in cht_wc_extcon_set_5v_boost()
199 		dev_err(ext->dev, "Error writing Vbus GPIO CTLO: %d\n", ret);  in cht_wc_extcon_set_5v_boost()
206 	extcon_set_state_sync(ext->edev, cable, state);  in cht_wc_extcon_set_state()
208 		extcon_set_state_sync(ext->edev, EXTCON_USB, state);  in cht_wc_extcon_set_state()
216 	bool ignore_get_charger_errors = ext->usb_host;  in cht_wc_extcon_pwrsrc_event()
218 	ret = regmap_read(ext->regmap, CHT_WC_PWRSRC_STS, &pwrsrc_sts);  in cht_wc_extcon_pwrsrc_event()
220 		dev_err(ext->dev, "Error reading pwrsrc status: %d\n", ret);  in cht_wc_extcon_pwrsrc_event()
226 		/* The 5v boost causes a false VBUS / SDP detect, skip */  in cht_wc_extcon_pwrsrc_event()
232 		/* Route D+ and D- to PMIC for future charger detection */  in cht_wc_extcon_pwrsrc_event()
242 	/* Route D+ and D- to SoC for the host or gadget controller */  in cht_wc_extcon_pwrsrc_event()
246 	if (cable != ext->previous_cable) {  in cht_wc_extcon_pwrsrc_event()
248 		cht_wc_extcon_set_state(ext, ext->previous_cable, false);  in cht_wc_extcon_pwrsrc_event()
249 		ext->previous_cable = cable;  in cht_wc_extcon_pwrsrc_event()
252 	ext->usb_host = ((id == USB_ID_GND) || (id == USB_RID_A));  in cht_wc_extcon_pwrsrc_event()
253 	extcon_set_state_sync(ext->edev, EXTCON_USB_HOST, ext->usb_host);  in cht_wc_extcon_pwrsrc_event()
261 	ret = regmap_read(ext->regmap, CHT_WC_PWRSRC_IRQ, &irqs);  in cht_wc_extcon_isr()
263 		dev_err(ext->dev, "Error reading irqs: %d\n", ret);  in cht_wc_extcon_isr()
269 	ret = regmap_write(ext->regmap, CHT_WC_PWRSRC_IRQ, irqs);  in cht_wc_extcon_isr()
271 		dev_err(ext->dev, "Error writing irqs: %d\n", ret);  in cht_wc_extcon_isr()
284 	ret = regmap_update_bits(ext->regmap, CHT_WC_CHGRCTRL0, mask, val);  in cht_wc_extcon_sw_control()
286 		dev_err(ext->dev, "Error setting sw control: %d\n", ret);  in cht_wc_extcon_sw_control()
293 	struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);  in cht_wc_extcon_probe()
301 	ext = devm_kzalloc(&pdev->dev, sizeof(*ext), GFP_KERNEL);  in cht_wc_extcon_probe()
303 		return -ENOMEM;  in cht_wc_extcon_probe()
305 	ext->dev = &pdev->dev;  in cht_wc_extcon_probe()
306 	ext->regmap = pmic->regmap;  in cht_wc_extcon_probe()
307 	ext->previous_cable = EXTCON_NONE;  in cht_wc_extcon_probe()
310 	ext->edev = devm_extcon_dev_allocate(ext->dev, cht_wc_extcon_cables);  in cht_wc_extcon_probe()
311 	if (IS_ERR(ext->edev))  in cht_wc_extcon_probe()
312 		return PTR_ERR(ext->edev);  in cht_wc_extcon_probe()
315 	 * When a host-cable is detected the BIOS enables an external 5v boost  in cht_wc_extcon_probe()
320 	 *    (and unless we drive the external-charger-disable pin high it  in cht_wc_extcon_probe()
322 	 * 2) This gets seen by the pwrsrc block as a SDP USB Vbus supply  in cht_wc_extcon_probe()
335 	ret = devm_extcon_dev_register(ext->dev, ext->edev);  in cht_wc_extcon_probe()
337 		dev_err(ext->dev, "Error registering extcon device: %d\n", ret);  in cht_wc_extcon_probe()
341 	/* Route D+ and D- to PMIC for initial charger detection */  in cht_wc_extcon_probe()
347 	ret = devm_request_threaded_irq(ext->dev, irq, NULL, cht_wc_extcon_isr,  in cht_wc_extcon_probe()
348 					IRQF_ONESHOT, pdev->name, ext);  in cht_wc_extcon_probe()
350 		dev_err(ext->dev, "Error requesting interrupt: %d\n", ret);  in cht_wc_extcon_probe()
355 	ret = regmap_write(ext->regmap, CHT_WC_PWRSRC_IRQ_MASK,  in cht_wc_extcon_probe()
359 		dev_err(ext->dev, "Error writing irq-mask: %d\n", ret);  in cht_wc_extcon_probe()