1 // SPDX-License-Identifier: GPL-2.0
3  * extcon driver for Basin Cove PMIC
9 #include <linux/extcon-provider.h>
18 #include "extcon-intel.h"
54 	unsigned int id;  member
70 	return regmap_update_bits(data->regmap, reg, mask, 0x00);  in mrfld_extcon_clear()
76 	return regmap_update_bits(data->regmap, reg, mask, 0xff);  in mrfld_extcon_set()
82 	struct device *dev = data->dev;  in mrfld_extcon_sw_control()
96 	struct regmap *regmap = data->regmap;  in mrfld_extcon_get_id()
97 	unsigned int id;  in mrfld_extcon_get_id()  local
101 	ret = regmap_read(regmap, BCOVE_USBIDSTS, &id);  in mrfld_extcon_get_id()
105 	if (id & BCOVE_USBIDSTS_FLOAT)  in mrfld_extcon_get_id()
108 	switch ((id & BCOVE_USBIDSTS_RARBRC_MASK) >> BCOVE_USBIDSTS_RARBRC_SHIFT) {  in mrfld_extcon_get_id()
118 	 * PMIC A0 reports USBIDSTS_GND = 1 for ID_GND,  in mrfld_extcon_get_id()
119 	 * but PMIC B0 reports USBIDSTS_GND = 0 for ID_GND.  in mrfld_extcon_get_id()
122 	ground = id & BCOVE_USBIDSTS_GND;  in mrfld_extcon_get_id()
123 	switch ('A' + BCOVE_MAJOR(data->id)) {  in mrfld_extcon_get_id()
136 	unsigned int id;  in mrfld_extcon_role_detect()  local
144 	id = ret;  in mrfld_extcon_role_detect()
146 	usb_host = (id == INTEL_USB_ID_GND) || (id == INTEL_USB_RID_A);  in mrfld_extcon_role_detect()
147 	extcon_set_state_sync(data->edev, EXTCON_USB_HOST, usb_host);  in mrfld_extcon_role_detect()
154 	struct regmap *regmap = data->regmap;  in mrfld_extcon_cable_detect()
167 	change = status ^ data->status;  in mrfld_extcon_cable_detect()
169 		return -ENODATA;  in mrfld_extcon_cable_detect()
177 	data->status = status;  in mrfld_extcon_cable_detect()
196 	struct device *dev = &pdev->dev;  in mrfld_extcon_probe()
197 	struct intel_soc_pmic *pmic = dev_get_drvdata(dev->parent);  in mrfld_extcon_probe()  local
198 	struct regmap *regmap = pmic->regmap;  in mrfld_extcon_probe()
201 	unsigned int id;  in mrfld_extcon_probe()  local
210 		return -ENOMEM;  in mrfld_extcon_probe()
212 	data->dev = dev;  in mrfld_extcon_probe()
213 	data->regmap = regmap;  in mrfld_extcon_probe()
215 	data->edev = devm_extcon_dev_allocate(dev, mrfld_extcon_cable);  in mrfld_extcon_probe()
216 	if (IS_ERR(data->edev))  in mrfld_extcon_probe()
217 		return PTR_ERR(data->edev);  in mrfld_extcon_probe()
219 	ret = devm_extcon_dev_register(dev, data->edev);  in mrfld_extcon_probe()
224 					IRQF_ONESHOT | IRQF_SHARED, pdev->name,  in mrfld_extcon_probe()
229 	ret = regmap_read(regmap, BCOVE_ID, &id);  in mrfld_extcon_probe()
231 		return dev_err_probe(dev, ret, "can't read PMIC ID\n");  in mrfld_extcon_probe()
233 	data->id = id;  in mrfld_extcon_probe()
248 	data->status = status;  in mrfld_extcon_probe()
284 MODULE_DESCRIPTION("extcon driver for Intel Merrifield Basin Cove PMIC");