1// SPDX-License-Identifier: GPL-2.0+
  2//
  3// extcon-ptn5150.c - PTN5150 CC logic extcon driver to support USB detection
  4//
  5// Based on extcon-sm5502.c driver
  6// Copyright (c) 2018-2019 by Vijai Kumar K
  7// Author: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>
  8// Copyright (c) 2020 Krzysztof Kozlowski <krzk@kernel.org>
  9
 10#include <linux/bitfield.h>
 11#include <linux/err.h>
 12#include <linux/i2c.h>
 13#include <linux/interrupt.h>
 14#include <linux/kernel.h>
 15#include <linux/module.h>
 16#include <linux/regmap.h>
 17#include <linux/slab.h>
 18#include <linux/extcon-provider.h>
 19#include <linux/gpio/consumer.h>
 20#include <linux/usb/role.h>
 21
 22/* PTN5150 registers */
 23#define PTN5150_REG_DEVICE_ID			0x01
 24#define PTN5150_REG_CONTROL			0x02
 25#define PTN5150_REG_INT_STATUS			0x03
 26#define PTN5150_REG_CC_STATUS			0x04
 27#define PTN5150_REG_CON_DET			0x09
 28#define PTN5150_REG_VCONN_STATUS		0x0a
 29#define PTN5150_REG_RESET			0x0b
 30#define PTN5150_REG_INT_MASK			0x18
 31#define PTN5150_REG_INT_REG_STATUS		0x19
 32#define PTN5150_REG_END				PTN5150_REG_INT_REG_STATUS
 
 
 33
 34#define PTN5150_DFP_ATTACHED			0x1
 35#define PTN5150_UFP_ATTACHED			0x2
 36
 37/* Define PTN5150 MASK/SHIFT constant */
 38#define PTN5150_REG_DEVICE_ID_VERSION		GENMASK(7, 3)
 39#define PTN5150_REG_DEVICE_ID_VENDOR		GENMASK(2, 0)
 40
 41#define PTN5150_REG_CC_PORT_ATTACHMENT		GENMASK(4, 2)
 42#define PTN5150_REG_CC_VBUS_DETECTION		BIT(7)
 43#define PTN5150_REG_INT_CABLE_ATTACH_MASK	BIT(0)
 44#define PTN5150_REG_INT_CABLE_DETACH_MASK	BIT(1)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 45
 46struct ptn5150_info {
 47	struct device *dev;
 48	struct extcon_dev *edev;
 49	struct i2c_client *i2c;
 50	struct regmap *regmap;
 51	struct gpio_desc *int_gpiod;
 52	struct gpio_desc *vbus_gpiod;
 53	int irq;
 54	struct work_struct irq_work;
 55	struct mutex mutex;
 56	struct usb_role_switch *role_sw;
 57};
 58
 59/* List of detectable cables */
 60static const unsigned int ptn5150_extcon_cable[] = {
 61	EXTCON_USB,
 62	EXTCON_USB_HOST,
 63	EXTCON_NONE,
 64};
 65
 66static const struct regmap_config ptn5150_regmap_config = {
 67	.reg_bits	= 8,
 68	.val_bits	= 8,
 69	.max_register	= PTN5150_REG_END,
 70};
 71
 72static void ptn5150_check_state(struct ptn5150_info *info)
 73{
 74	unsigned int port_status, reg_data, vbus;
 75	enum usb_role usb_role = USB_ROLE_NONE;
 76	int ret;
 77
 78	ret = regmap_read(info->regmap, PTN5150_REG_CC_STATUS, &reg_data);
 79	if (ret) {
 80		dev_err(info->dev, "failed to read CC STATUS %d\n", ret);
 81		return;
 82	}
 83
 84	port_status = FIELD_GET(PTN5150_REG_CC_PORT_ATTACHMENT, reg_data);
 85
 86	switch (port_status) {
 87	case PTN5150_DFP_ATTACHED:
 88		extcon_set_state_sync(info->edev, EXTCON_USB_HOST, false);
 89		gpiod_set_value_cansleep(info->vbus_gpiod, 0);
 90		extcon_set_state_sync(info->edev, EXTCON_USB, true);
 91		usb_role = USB_ROLE_DEVICE;
 92		break;
 93	case PTN5150_UFP_ATTACHED:
 94		extcon_set_state_sync(info->edev, EXTCON_USB, false);
 95		vbus = FIELD_GET(PTN5150_REG_CC_VBUS_DETECTION, reg_data);
 96		if (vbus)
 97			gpiod_set_value_cansleep(info->vbus_gpiod, 0);
 98		else
 99			gpiod_set_value_cansleep(info->vbus_gpiod, 1);
100
101		extcon_set_state_sync(info->edev, EXTCON_USB_HOST, true);
102		usb_role = USB_ROLE_HOST;
103		break;
104	default:
105		break;
106	}
107
108	if (usb_role) {
109		ret = usb_role_switch_set_role(info->role_sw, usb_role);
110		if (ret)
111			dev_err(info->dev, "failed to set %s role: %d\n",
112				usb_role_string(usb_role), ret);
113	}
114}
115
116static void ptn5150_irq_work(struct work_struct *work)
117{
118	struct ptn5150_info *info = container_of(work,
119			struct ptn5150_info, irq_work);
120	int ret = 0;
 
121	unsigned int int_status;
122
123	if (!info->edev)
124		return;
125
126	mutex_lock(&info->mutex);
127
 
 
 
 
 
 
 
128	/* Clear interrupt. Read would clear the register */
129	ret = regmap_read(info->regmap, PTN5150_REG_INT_STATUS, &int_status);
130	if (ret) {
131		dev_err(info->dev, "failed to read INT STATUS %d\n", ret);
132		mutex_unlock(&info->mutex);
133		return;
134	}
135
136	if (int_status) {
137		unsigned int cable_attach;
138
139		cable_attach = int_status & PTN5150_REG_INT_CABLE_ATTACH_MASK;
140		if (cable_attach) {
141			ptn5150_check_state(info);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
142		} else {
143			extcon_set_state_sync(info->edev,
144					EXTCON_USB_HOST, false);
145			extcon_set_state_sync(info->edev,
146					EXTCON_USB, false);
147			gpiod_set_value_cansleep(info->vbus_gpiod, 0);
148
149			ret = usb_role_switch_set_role(info->role_sw,
150						       USB_ROLE_NONE);
151			if (ret)
152				dev_err(info->dev,
153					"failed to set none role: %d\n",
154					ret);
155		}
156	}
157
158	/* Clear interrupt. Read would clear the register */
159	ret = regmap_read(info->regmap, PTN5150_REG_INT_REG_STATUS,
160			&int_status);
161	if (ret) {
162		dev_err(info->dev,
163			"failed to read INT REG STATUS %d\n", ret);
164		mutex_unlock(&info->mutex);
165		return;
166	}
167
168	mutex_unlock(&info->mutex);
169}
170
171
172static irqreturn_t ptn5150_irq_handler(int irq, void *data)
173{
174	struct ptn5150_info *info = data;
175
176	schedule_work(&info->irq_work);
177
178	return IRQ_HANDLED;
179}
180
181static int ptn5150_init_dev_type(struct ptn5150_info *info)
182{
183	unsigned int reg_data, vendor_id, version_id;
184	int ret;
185
186	ret = regmap_read(info->regmap, PTN5150_REG_DEVICE_ID, &reg_data);
187	if (ret) {
188		dev_err(info->dev, "failed to read DEVICE_ID %d\n", ret);
189		return -EINVAL;
190	}
191
192	vendor_id = FIELD_GET(PTN5150_REG_DEVICE_ID_VENDOR, reg_data);
193	version_id = FIELD_GET(PTN5150_REG_DEVICE_ID_VERSION, reg_data);
194	dev_dbg(info->dev, "Device type: version: 0x%x, vendor: 0x%x\n",
195		version_id, vendor_id);
 
 
 
196
197	/* Clear any existing interrupts */
198	ret = regmap_read(info->regmap, PTN5150_REG_INT_STATUS, &reg_data);
199	if (ret) {
200		dev_err(info->dev,
201			"failed to read PTN5150_REG_INT_STATUS %d\n",
202			ret);
203		return -EINVAL;
204	}
205
206	ret = regmap_read(info->regmap, PTN5150_REG_INT_REG_STATUS, &reg_data);
207	if (ret) {
208		dev_err(info->dev,
209			"failed to read PTN5150_REG_INT_REG_STATUS %d\n", ret);
210		return -EINVAL;
211	}
212
213	return 0;
214}
215
216static void ptn5150_work_sync_and_put(void *data)
217{
218	struct ptn5150_info *info = data;
219
220	cancel_work_sync(&info->irq_work);
221	usb_role_switch_put(info->role_sw);
222}
223
224static int ptn5150_i2c_probe(struct i2c_client *i2c)
225{
226	struct device *dev = &i2c->dev;
227	struct device_node *np = i2c->dev.of_node;
228	struct ptn5150_info *info;
229	int ret;
230
231	if (!np)
232		return -EINVAL;
233
234	info = devm_kzalloc(&i2c->dev, sizeof(*info), GFP_KERNEL);
235	if (!info)
236		return -ENOMEM;
237	i2c_set_clientdata(i2c, info);
238
239	info->dev = &i2c->dev;
240	info->i2c = i2c;
241	info->vbus_gpiod = devm_gpiod_get(&i2c->dev, "vbus", GPIOD_OUT_LOW);
 
 
 
 
 
242	if (IS_ERR(info->vbus_gpiod)) {
243		ret = PTR_ERR(info->vbus_gpiod);
244		if (ret == -ENOENT) {
245			dev_info(dev, "No VBUS GPIO, ignoring VBUS control\n");
246			info->vbus_gpiod = NULL;
247		} else {
248			return dev_err_probe(dev, ret, "failed to get VBUS GPIO\n");
249		}
250	}
251
252	mutex_init(&info->mutex);
253
254	INIT_WORK(&info->irq_work, ptn5150_irq_work);
255
256	info->regmap = devm_regmap_init_i2c(i2c, &ptn5150_regmap_config);
257	if (IS_ERR(info->regmap)) {
258		return dev_err_probe(info->dev, PTR_ERR(info->regmap),
259				     "failed to allocate register map\n");
 
 
260	}
261
262	if (i2c->irq > 0) {
263		info->irq = i2c->irq;
264	} else {
265		info->int_gpiod = devm_gpiod_get(&i2c->dev, "int", GPIOD_IN);
266		if (IS_ERR(info->int_gpiod)) {
267			return dev_err_probe(dev, PTR_ERR(info->int_gpiod),
268					     "failed to get INT GPIO\n");
269		}
270
271		info->irq = gpiod_to_irq(info->int_gpiod);
272		if (info->irq < 0) {
273			dev_err(dev, "failed to get INTB IRQ\n");
274			return info->irq;
275		}
276	}
277
278	ret = devm_request_threaded_irq(dev, info->irq, NULL,
279					ptn5150_irq_handler,
280					IRQF_TRIGGER_FALLING |
281					IRQF_ONESHOT,
282					i2c->name, info);
283	if (ret < 0) {
284		dev_err(dev, "failed to request handler for INTB IRQ\n");
285		return ret;
 
286	}
287
288	/* Allocate extcon device */
289	info->edev = devm_extcon_dev_allocate(info->dev, ptn5150_extcon_cable);
290	if (IS_ERR(info->edev)) {
291		dev_err(info->dev, "failed to allocate memory for extcon\n");
292		return -ENOMEM;
293	}
294
295	/* Register extcon device */
296	ret = devm_extcon_dev_register(info->dev, info->edev);
297	if (ret) {
298		dev_err(info->dev, "failed to register extcon device\n");
299		return ret;
300	}
301
302	extcon_set_property_capability(info->edev, EXTCON_USB,
303					EXTCON_PROP_USB_VBUS);
304	extcon_set_property_capability(info->edev, EXTCON_USB_HOST,
305					EXTCON_PROP_USB_VBUS);
306	extcon_set_property_capability(info->edev, EXTCON_USB_HOST,
307					EXTCON_PROP_USB_TYPEC_POLARITY);
308
309	/* Initialize PTN5150 device and print vendor id and version id */
310	ret = ptn5150_init_dev_type(info);
311	if (ret)
312		return -EINVAL;
313
314	info->role_sw = usb_role_switch_get(info->dev);
315	if (IS_ERR(info->role_sw))
316		return dev_err_probe(info->dev, PTR_ERR(info->role_sw),
317				     "failed to get role switch\n");
318
319	ret = devm_add_action_or_reset(dev, ptn5150_work_sync_and_put, info);
320	if (ret)
321		return ret;
322
323	/*
324	 * Update current extcon state if for example OTG connection was there
325	 * before the probe
326	 */
327	mutex_lock(&info->mutex);
328	ptn5150_check_state(info);
329	mutex_unlock(&info->mutex);
330
331	return 0;
332}
333
334static const struct of_device_id ptn5150_dt_match[] = {
335	{ .compatible = "nxp,ptn5150" },
336	{ },
337};
338MODULE_DEVICE_TABLE(of, ptn5150_dt_match);
339
340static const struct i2c_device_id ptn5150_i2c_id[] = {
341	{ "ptn5150", 0 },
342	{ }
343};
344MODULE_DEVICE_TABLE(i2c, ptn5150_i2c_id);
345
346static struct i2c_driver ptn5150_i2c_driver = {
347	.driver		= {
348		.name	= "ptn5150",
349		.of_match_table = ptn5150_dt_match,
350	},
351	.probe		= ptn5150_i2c_probe,
352	.id_table = ptn5150_i2c_id,
353};
354module_i2c_driver(ptn5150_i2c_driver);
 
 
 
 
 
355
356MODULE_DESCRIPTION("NXP PTN5150 CC logic Extcon driver");
357MODULE_AUTHOR("Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>");
358MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>");
359MODULE_LICENSE("GPL v2");

  1// SPDX-License-Identifier: GPL-2.0+
  2//
  3// extcon-ptn5150.c - PTN5150 CC logic extcon driver to support USB detection
  4//
  5// Based on extcon-sm5502.c driver
  6// Copyright (c) 2018-2019 by Vijai Kumar K
  7// Author: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>
 
  8
 
  9#include <linux/err.h>
 10#include <linux/i2c.h>
 11#include <linux/interrupt.h>
 12#include <linux/kernel.h>
 13#include <linux/module.h>
 14#include <linux/regmap.h>
 15#include <linux/slab.h>
 16#include <linux/extcon-provider.h>
 17#include <linux/gpio/consumer.h>
 
 18
 19/* PTN5150 registers */
 20enum ptn5150_reg {
 21	PTN5150_REG_DEVICE_ID = 0x01,
 22	PTN5150_REG_CONTROL,
 23	PTN5150_REG_INT_STATUS,
 24	PTN5150_REG_CC_STATUS,
 25	PTN5150_REG_CON_DET = 0x09,
 26	PTN5150_REG_VCONN_STATUS,
 27	PTN5150_REG_RESET,
 28	PTN5150_REG_INT_MASK = 0x18,
 29	PTN5150_REG_INT_REG_STATUS,
 30	PTN5150_REG_END,
 31};
 32
 33#define PTN5150_DFP_ATTACHED			0x1
 34#define PTN5150_UFP_ATTACHED			0x2
 35
 36/* Define PTN5150 MASK/SHIFT constant */
 37#define PTN5150_REG_DEVICE_ID_VENDOR_SHIFT	0
 38#define PTN5150_REG_DEVICE_ID_VENDOR_MASK	\
 39	(0x3 << PTN5150_REG_DEVICE_ID_VENDOR_SHIFT)
 40
 41#define PTN5150_REG_DEVICE_ID_VERSION_SHIFT	3
 42#define PTN5150_REG_DEVICE_ID_VERSION_MASK	\
 43	(0x1f << PTN5150_REG_DEVICE_ID_VERSION_SHIFT)
 44
 45#define PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT	2
 46#define PTN5150_REG_CC_PORT_ATTACHMENT_MASK	\
 47	(0x7 << PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT)
 48
 49#define PTN5150_REG_CC_VBUS_DETECTION_SHIFT	7
 50#define PTN5150_REG_CC_VBUS_DETECTION_MASK	\
 51	(0x1 << PTN5150_REG_CC_VBUS_DETECTION_SHIFT)
 52
 53#define PTN5150_REG_INT_CABLE_ATTACH_SHIFT	0
 54#define PTN5150_REG_INT_CABLE_ATTACH_MASK	\
 55	(0x1 << PTN5150_REG_INT_CABLE_ATTACH_SHIFT)
 56
 57#define PTN5150_REG_INT_CABLE_DETACH_SHIFT	1
 58#define PTN5150_REG_INT_CABLE_DETACH_MASK	\
 59	(0x1 << PTN5150_REG_CC_CABLE_DETACH_SHIFT)
 60
 61struct ptn5150_info {
 62	struct device *dev;
 63	struct extcon_dev *edev;
 64	struct i2c_client *i2c;
 65	struct regmap *regmap;
 66	struct gpio_desc *int_gpiod;
 67	struct gpio_desc *vbus_gpiod;
 68	int irq;
 69	struct work_struct irq_work;
 70	struct mutex mutex;
 
 71};
 72
 73/* List of detectable cables */
 74static const unsigned int ptn5150_extcon_cable[] = {
 75	EXTCON_USB,
 76	EXTCON_USB_HOST,
 77	EXTCON_NONE,
 78};
 79
 80static const struct regmap_config ptn5150_regmap_config = {
 81	.reg_bits	= 8,
 82	.val_bits	= 8,
 83	.max_register	= PTN5150_REG_END,
 84};
 85
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 86static void ptn5150_irq_work(struct work_struct *work)
 87{
 88	struct ptn5150_info *info = container_of(work,
 89			struct ptn5150_info, irq_work);
 90	int ret = 0;
 91	unsigned int reg_data;
 92	unsigned int int_status;
 93
 94	if (!info->edev)
 95		return;
 96
 97	mutex_lock(&info->mutex);
 98
 99	ret = regmap_read(info->regmap, PTN5150_REG_CC_STATUS, &reg_data);
100	if (ret) {
101		dev_err(info->dev, "failed to read CC STATUS %d\n", ret);
102		mutex_unlock(&info->mutex);
103		return;
104	}
105
106	/* Clear interrupt. Read would clear the register */
107	ret = regmap_read(info->regmap, PTN5150_REG_INT_STATUS, &int_status);
108	if (ret) {
109		dev_err(info->dev, "failed to read INT STATUS %d\n", ret);
110		mutex_unlock(&info->mutex);
111		return;
112	}
113
114	if (int_status) {
115		unsigned int cable_attach;
116
117		cable_attach = int_status & PTN5150_REG_INT_CABLE_ATTACH_MASK;
118		if (cable_attach) {
119			unsigned int port_status;
120			unsigned int vbus;
121
122			port_status = ((reg_data &
123					PTN5150_REG_CC_PORT_ATTACHMENT_MASK) >>
124					PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT);
125
126			switch (port_status) {
127			case PTN5150_DFP_ATTACHED:
128				extcon_set_state_sync(info->edev,
129						EXTCON_USB_HOST, false);
130				gpiod_set_value(info->vbus_gpiod, 0);
131				extcon_set_state_sync(info->edev, EXTCON_USB,
132						true);
133				break;
134			case PTN5150_UFP_ATTACHED:
135				extcon_set_state_sync(info->edev, EXTCON_USB,
136						false);
137				vbus = ((reg_data &
138					PTN5150_REG_CC_VBUS_DETECTION_MASK) >>
139					PTN5150_REG_CC_VBUS_DETECTION_SHIFT);
140				if (vbus)
141					gpiod_set_value(info->vbus_gpiod, 0);
142				else
143					gpiod_set_value(info->vbus_gpiod, 1);
144
145				extcon_set_state_sync(info->edev,
146						EXTCON_USB_HOST, true);
147				break;
148			default:
149				dev_err(info->dev,
150					"Unknown Port status : %x\n",
151					port_status);
152				break;
153			}
154		} else {
155			extcon_set_state_sync(info->edev,
156					EXTCON_USB_HOST, false);
157			extcon_set_state_sync(info->edev,
158					EXTCON_USB, false);
159			gpiod_set_value(info->vbus_gpiod, 0);
 
 
 
 
 
 
 
160		}
161	}
162
163	/* Clear interrupt. Read would clear the register */
164	ret = regmap_read(info->regmap, PTN5150_REG_INT_REG_STATUS,
165			&int_status);
166	if (ret) {
167		dev_err(info->dev,
168			"failed to read INT REG STATUS %d\n", ret);
169		mutex_unlock(&info->mutex);
170		return;
171	}
172
173	mutex_unlock(&info->mutex);
174}
175
176
177static irqreturn_t ptn5150_irq_handler(int irq, void *data)
178{
179	struct ptn5150_info *info = data;
180
181	schedule_work(&info->irq_work);
182
183	return IRQ_HANDLED;
184}
185
186static int ptn5150_init_dev_type(struct ptn5150_info *info)
187{
188	unsigned int reg_data, vendor_id, version_id;
189	int ret;
190
191	ret = regmap_read(info->regmap, PTN5150_REG_DEVICE_ID, &reg_data);
192	if (ret) {
193		dev_err(info->dev, "failed to read DEVICE_ID %d\n", ret);
194		return -EINVAL;
195	}
196
197	vendor_id = ((reg_data & PTN5150_REG_DEVICE_ID_VENDOR_MASK) >>
198				PTN5150_REG_DEVICE_ID_VENDOR_SHIFT);
199	version_id = ((reg_data & PTN5150_REG_DEVICE_ID_VERSION_MASK) >>
200				PTN5150_REG_DEVICE_ID_VERSION_SHIFT);
201
202	dev_info(info->dev, "Device type: version: 0x%x, vendor: 0x%x\n",
203			    version_id, vendor_id);
204
205	/* Clear any existing interrupts */
206	ret = regmap_read(info->regmap, PTN5150_REG_INT_STATUS, &reg_data);
207	if (ret) {
208		dev_err(info->dev,
209			"failed to read PTN5150_REG_INT_STATUS %d\n",
210			ret);
211		return -EINVAL;
212	}
213
214	ret = regmap_read(info->regmap, PTN5150_REG_INT_REG_STATUS, &reg_data);
215	if (ret) {
216		dev_err(info->dev,
217			"failed to read PTN5150_REG_INT_REG_STATUS %d\n", ret);
218		return -EINVAL;
219	}
220
221	return 0;
222}
223
224static int ptn5150_i2c_probe(struct i2c_client *i2c,
225				 const struct i2c_device_id *id)
 
 
 
 
 
 
 
226{
227	struct device *dev = &i2c->dev;
228	struct device_node *np = i2c->dev.of_node;
229	struct ptn5150_info *info;
230	int ret;
231
232	if (!np)
233		return -EINVAL;
234
235	info = devm_kzalloc(&i2c->dev, sizeof(*info), GFP_KERNEL);
236	if (!info)
237		return -ENOMEM;
238	i2c_set_clientdata(i2c, info);
239
240	info->dev = &i2c->dev;
241	info->i2c = i2c;
242	info->int_gpiod = devm_gpiod_get(&i2c->dev, "int", GPIOD_IN);
243	if (IS_ERR(info->int_gpiod)) {
244		dev_err(dev, "failed to get INT GPIO\n");
245		return PTR_ERR(info->int_gpiod);
246	}
247	info->vbus_gpiod = devm_gpiod_get(&i2c->dev, "vbus", GPIOD_IN);
248	if (IS_ERR(info->vbus_gpiod)) {
249		dev_err(dev, "failed to get VBUS GPIO\n");
250		return PTR_ERR(info->vbus_gpiod);
251	}
252	ret = gpiod_direction_output(info->vbus_gpiod, 0);
253	if (ret) {
254		dev_err(dev, "failed to set VBUS GPIO direction\n");
255		return -EINVAL;
256	}
257
258	mutex_init(&info->mutex);
259
260	INIT_WORK(&info->irq_work, ptn5150_irq_work);
261
262	info->regmap = devm_regmap_init_i2c(i2c, &ptn5150_regmap_config);
263	if (IS_ERR(info->regmap)) {
264		ret = PTR_ERR(info->regmap);
265		dev_err(info->dev, "failed to allocate register map: %d\n",
266				   ret);
267		return ret;
268	}
269
270	if (info->int_gpiod) {
 
 
 
 
 
 
 
 
271		info->irq = gpiod_to_irq(info->int_gpiod);
272		if (info->irq < 0) {
273			dev_err(dev, "failed to get INTB IRQ\n");
274			return info->irq;
275		}
 
276
277		ret = devm_request_threaded_irq(dev, info->irq, NULL,
278						ptn5150_irq_handler,
279						IRQF_TRIGGER_FALLING |
280						IRQF_ONESHOT,
281						i2c->name, info);
282		if (ret < 0) {
283			dev_err(dev, "failed to request handler for INTB IRQ\n");
284			return ret;
285		}
286	}
287
288	/* Allocate extcon device */
289	info->edev = devm_extcon_dev_allocate(info->dev, ptn5150_extcon_cable);
290	if (IS_ERR(info->edev)) {
291		dev_err(info->dev, "failed to allocate memory for extcon\n");
292		return -ENOMEM;
293	}
294
295	/* Register extcon device */
296	ret = devm_extcon_dev_register(info->dev, info->edev);
297	if (ret) {
298		dev_err(info->dev, "failed to register extcon device\n");
299		return ret;
300	}
301
 
 
 
 
 
 
 
302	/* Initialize PTN5150 device and print vendor id and version id */
303	ret = ptn5150_init_dev_type(info);
304	if (ret)
305		return -EINVAL;
306
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
307	return 0;
308}
309
310static const struct of_device_id ptn5150_dt_match[] = {
311	{ .compatible = "nxp,ptn5150" },
312	{ },
313};
314MODULE_DEVICE_TABLE(of, ptn5150_dt_match);
315
316static const struct i2c_device_id ptn5150_i2c_id[] = {
317	{ "ptn5150", 0 },
318	{ }
319};
320MODULE_DEVICE_TABLE(i2c, ptn5150_i2c_id);
321
322static struct i2c_driver ptn5150_i2c_driver = {
323	.driver		= {
324		.name	= "ptn5150",
325		.of_match_table = ptn5150_dt_match,
326	},
327	.probe	= ptn5150_i2c_probe,
328	.id_table = ptn5150_i2c_id,
329};
330
331static int __init ptn5150_i2c_init(void)
332{
333	return i2c_add_driver(&ptn5150_i2c_driver);
334}
335subsys_initcall(ptn5150_i2c_init);
336
337MODULE_DESCRIPTION("NXP PTN5150 CC logic Extcon driver");
338MODULE_AUTHOR("Vijai Kumar K <vijaikumar.kanagarajan@gmail.com>");
 
339MODULE_LICENSE("GPL v2");