1 // SPDX-License-Identifier: GPL-2.0+
25 	[IQS62X_SW_HALL_N] = "hall-switch-north",
26 	[IQS62X_SW_HALL_S] = "hall-switch-south",
52 	ret = device_property_count_u32(&pdev->dev, "linux,keycodes");  in iqs62x_keys_parse_prop()
54 		dev_err(&pdev->dev, "Too many keycodes present\n");  in iqs62x_keys_parse_prop()
55 		return -EINVAL;  in iqs62x_keys_parse_prop()
57 		dev_err(&pdev->dev, "Failed to count keycodes: %d\n", ret);  in iqs62x_keys_parse_prop()
60 	iqs62x_keys->keycodemax = ret;  in iqs62x_keys_parse_prop()
62 	ret = device_property_read_u32_array(&pdev->dev, "linux,keycodes",  in iqs62x_keys_parse_prop()
63 					     iqs62x_keys->keycode,  in iqs62x_keys_parse_prop()
64 					     iqs62x_keys->keycodemax);  in iqs62x_keys_parse_prop()
66 		dev_err(&pdev->dev, "Failed to read keycodes: %d\n", ret);  in iqs62x_keys_parse_prop()
70 	for (i = 0; i < ARRAY_SIZE(iqs62x_keys->switches); i++) {  in iqs62x_keys_parse_prop()
71 		child = device_get_named_child_node(&pdev->dev,  in iqs62x_keys_parse_prop()
78 			dev_err(&pdev->dev, "Failed to read switch code: %d\n",  in iqs62x_keys_parse_prop()
82 		iqs62x_keys->switches[i].code = val;  in iqs62x_keys_parse_prop()
83 		iqs62x_keys->switches[i].enabled = true;  in iqs62x_keys_parse_prop()
85 		if (fwnode_property_present(child, "azoteq,use-prox"))  in iqs62x_keys_parse_prop()
86 			iqs62x_keys->switches[i].flag = (i == IQS62X_SW_HALL_N ?  in iqs62x_keys_parse_prop()
90 			iqs62x_keys->switches[i].flag = (i == IQS62X_SW_HALL_N ?  in iqs62x_keys_parse_prop()
100 	struct iqs62x_core *iqs62x = iqs62x_keys->iqs62x;  in iqs62x_keys_init()
106 	switch (iqs62x->dev_desc->prod_num) {  in iqs62x_keys_init()
116 		for (i = 0; i < iqs62x_keys->keycodemax; i++) {  in iqs62x_keys_init()
117 			if (iqs62x_keys->keycode[i] == KEY_RESERVED)  in iqs62x_keys_init()
121 				event_mask |= iqs62x->dev_desc->prox_mask;  in iqs62x_keys_init()
123 				event_mask |= (iqs62x->dev_desc->hyst_mask |  in iqs62x_keys_init()
124 					       iqs62x->dev_desc->sar_mask);  in iqs62x_keys_init()
127 		ret = regmap_read(iqs62x->regmap, iqs62x->dev_desc->hall_flags,  in iqs62x_keys_init()
136 		for (i = 0; i < ARRAY_SIZE(iqs62x_keys->switches); i++) {  in iqs62x_keys_init()
137 			if (!(iqs62x_keys->switches[i].enabled))  in iqs62x_keys_init()
140 			flag = iqs62x_keys->switches[i].flag;  in iqs62x_keys_init()
145 			event_mask |= iqs62x->dev_desc->hall_mask;  in iqs62x_keys_init()
147 			input_report_switch(iqs62x_keys->input,  in iqs62x_keys_init()
148 					    iqs62x_keys->switches[i].code,  in iqs62x_keys_init()
153 		input_sync(iqs62x_keys->input);  in iqs62x_keys_init()
163 		if (iqs62x_keys->keycode[IQS62X_EVENT_WHEEL_UP] != KEY_RESERVED)  in iqs62x_keys_init()
166 		if (iqs62x_keys->keycode[IQS62X_EVENT_WHEEL_DN] != KEY_RESERVED)  in iqs62x_keys_init()
169 		ret = regmap_read(iqs62x->regmap, iqs62x->dev_desc->interval,  in iqs62x_keys_init()
174 		iqs62x_keys->interval = val;  in iqs62x_keys_init()
181 	return regmap_update_bits(iqs62x->regmap, event_reg, event_mask, 0);  in iqs62x_keys_init()
197 			dev_err(iqs62x_keys->input->dev.parent,  in iqs62x_keys_notifier()
198 				"Failed to re-initialize device: %d\n", ret);  in iqs62x_keys_notifier()
205 	for (i = 0; i < iqs62x_keys->keycodemax; i++) {  in iqs62x_keys_notifier()
207 		    event_data->interval == iqs62x_keys->interval)  in iqs62x_keys_notifier()
210 		input_report_key(iqs62x_keys->input, iqs62x_keys->keycode[i],  in iqs62x_keys_notifier()
214 	for (i = 0; i < ARRAY_SIZE(iqs62x_keys->switches); i++)  in iqs62x_keys_notifier()
215 		if (iqs62x_keys->switches[i].enabled)  in iqs62x_keys_notifier()
216 			input_report_switch(iqs62x_keys->input,  in iqs62x_keys_notifier()
217 					    iqs62x_keys->switches[i].code,  in iqs62x_keys_notifier()
219 					    BIT(iqs62x_keys->switches[i].flag));  in iqs62x_keys_notifier()
221 	input_sync(iqs62x_keys->input);  in iqs62x_keys_notifier()
223 	if (event_data->interval == iqs62x_keys->interval)  in iqs62x_keys_notifier()
227 	 * Each frame contains at most one wheel event (up or down), in which  in iqs62x_keys_notifier()
231 		input_report_key(iqs62x_keys->input,  in iqs62x_keys_notifier()
232 				 iqs62x_keys->keycode[IQS62X_EVENT_WHEEL_UP],  in iqs62x_keys_notifier()
234 		input_sync(iqs62x_keys->input);  in iqs62x_keys_notifier()
236 		input_report_key(iqs62x_keys->input,  in iqs62x_keys_notifier()
237 				 iqs62x_keys->keycode[IQS62X_EVENT_WHEEL_DN],  in iqs62x_keys_notifier()
239 		input_sync(iqs62x_keys->input);  in iqs62x_keys_notifier()
242 	iqs62x_keys->interval = event_data->interval;  in iqs62x_keys_notifier()
249 	struct iqs62x_core *iqs62x = dev_get_drvdata(pdev->dev.parent);  in iqs62x_keys_probe()
254 	iqs62x_keys = devm_kzalloc(&pdev->dev, sizeof(*iqs62x_keys),  in iqs62x_keys_probe()
257 		return -ENOMEM;  in iqs62x_keys_probe()
265 	input = devm_input_allocate_device(&pdev->dev);  in iqs62x_keys_probe()
267 		return -ENOMEM;  in iqs62x_keys_probe()
269 	input->keycodemax = iqs62x_keys->keycodemax;  in iqs62x_keys_probe()
270 	input->keycode = iqs62x_keys->keycode;  in iqs62x_keys_probe()
271 	input->keycodesize = sizeof(*iqs62x_keys->keycode);  in iqs62x_keys_probe()
273 	input->name = iqs62x->dev_desc->dev_name;  in iqs62x_keys_probe()
274 	input->id.bustype = BUS_I2C;  in iqs62x_keys_probe()
276 	for (i = 0; i < iqs62x_keys->keycodemax; i++)  in iqs62x_keys_probe()
277 		if (iqs62x_keys->keycode[i] != KEY_RESERVED)  in iqs62x_keys_probe()
279 					     iqs62x_keys->keycode[i]);  in iqs62x_keys_probe()
281 	for (i = 0; i < ARRAY_SIZE(iqs62x_keys->switches); i++)  in iqs62x_keys_probe()
282 		if (iqs62x_keys->switches[i].enabled)  in iqs62x_keys_probe()
284 					     iqs62x_keys->switches[i].code);  in iqs62x_keys_probe()
286 	iqs62x_keys->iqs62x = iqs62x;  in iqs62x_keys_probe()
287 	iqs62x_keys->input = input;  in iqs62x_keys_probe()
291 		dev_err(&pdev->dev, "Failed to initialize device: %d\n", ret);  in iqs62x_keys_probe()
295 	ret = input_register_device(iqs62x_keys->input);  in iqs62x_keys_probe()
297 		dev_err(&pdev->dev, "Failed to register device: %d\n", ret);  in iqs62x_keys_probe()
301 	iqs62x_keys->notifier.notifier_call = iqs62x_keys_notifier;  in iqs62x_keys_probe()
302 	ret = blocking_notifier_chain_register(&iqs62x_keys->iqs62x->nh,  in iqs62x_keys_probe()
303 					       &iqs62x_keys->notifier);  in iqs62x_keys_probe()
305 		dev_err(&pdev->dev, "Failed to register notifier: %d\n", ret);  in iqs62x_keys_probe()
315 	ret = blocking_notifier_chain_unregister(&iqs62x_keys->iqs62x->nh,  in iqs62x_keys_remove()
316 						 &iqs62x_keys->notifier);  in iqs62x_keys_remove()
318 		dev_err(&pdev->dev, "Failed to unregister notifier: %d\n", ret);  in iqs62x_keys_remove()
325 		.name = "iqs62x-keys",
335 MODULE_ALIAS("platform:iqs62x-keys");