1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * OnKey device driver for DA9063, DA9062 and DA9061 PMICs
15 #include <linux/mfd/da9063/core.h>
16 #include <linux/mfd/da9063/registers.h>
72 	.name = "da9062-onkey",
76 	{ .compatible = "dlg,da9063-onkey", .data = &da9063_regs },
77 	{ .compatible = "dlg,da9062-onkey", .data = &da9062_regs },
84 	struct da9063_onkey *onkey = container_of(work,  in da9063_poll_on()  local
87 	const struct da906x_chip_config *config = onkey->config;  in da9063_poll_on()
94 	error = regmap_read(onkey->regmap,  in da9063_poll_on()
95 			    config->onkey_status,  in da9063_poll_on()
98 		dev_err(onkey->dev,  in da9063_poll_on()
103 	if (!(val & config->onkey_nonkey_mask)) {  in da9063_poll_on()
104 		error = regmap_update_bits(onkey->regmap,  in da9063_poll_on()
105 					   config->onkey_pwr_signalling,  in da9063_poll_on()
106 					   config->onkey_nonkey_lock_mask,  in da9063_poll_on()
109 			dev_err(onkey->dev,  in da9063_poll_on()
114 		input_report_key(onkey->input, KEY_POWER, 0);  in da9063_poll_on()
115 		input_sync(onkey->input);  in da9063_poll_on()
124 	error = regmap_read(onkey->regmap,  in da9063_poll_on()
125 			    config->onkey_fault_log,  in da9063_poll_on()
128 		dev_warn(&onkey->input->dev,  in da9063_poll_on()
130 	} else if (fault_log & config->onkey_key_reset_mask) {  in da9063_poll_on()
131 		error = regmap_write(onkey->regmap,  in da9063_poll_on()
132 				     config->onkey_fault_log,  in da9063_poll_on()
133 				     config->onkey_key_reset_mask);  in da9063_poll_on()
135 			dev_warn(&onkey->input->dev,  in da9063_poll_on()
142 			dev_dbg(&onkey->input->dev,  in da9063_poll_on()
144 			error = regmap_write(onkey->regmap,  in da9063_poll_on()
145 					     config->onkey_shutdown,  in da9063_poll_on()
146 					     config->onkey_shutdown_mask);  in da9063_poll_on()
148 				dev_err(&onkey->input->dev,  in da9063_poll_on()
156 		schedule_delayed_work(&onkey->work, msecs_to_jiffies(50));  in da9063_poll_on()
161 	struct da9063_onkey *onkey = data;  in da9063_onkey_irq_handler()  local
162 	const struct da906x_chip_config *config = onkey->config;  in da9063_onkey_irq_handler()
166 	error = regmap_read(onkey->regmap,  in da9063_onkey_irq_handler()
167 			    config->onkey_status,  in da9063_onkey_irq_handler()
169 	if (onkey->key_power && !error && (val & config->onkey_nonkey_mask)) {  in da9063_onkey_irq_handler()
170 		input_report_key(onkey->input, KEY_POWER, 1);  in da9063_onkey_irq_handler()
171 		input_sync(onkey->input);  in da9063_onkey_irq_handler()
172 		schedule_delayed_work(&onkey->work, 0);  in da9063_onkey_irq_handler()
173 		dev_dbg(onkey->dev, "KEY_POWER long press.\n");  in da9063_onkey_irq_handler()
175 		input_report_key(onkey->input, KEY_POWER, 1);  in da9063_onkey_irq_handler()
176 		input_sync(onkey->input);  in da9063_onkey_irq_handler()
177 		input_report_key(onkey->input, KEY_POWER, 0);  in da9063_onkey_irq_handler()
178 		input_sync(onkey->input);  in da9063_onkey_irq_handler()
179 		dev_dbg(onkey->dev, "KEY_POWER short press.\n");  in da9063_onkey_irq_handler()
187 	struct da9063_onkey *onkey = data;  in da9063_cancel_poll()  local
189 	cancel_delayed_work_sync(&onkey->work);  in da9063_cancel_poll()
194 	struct da9063_onkey *onkey;  in da9063_onkey_probe()  local
200 			      pdev->dev.of_node);  in da9063_onkey_probe()
202 		return -ENXIO;  in da9063_onkey_probe()
204 	onkey = devm_kzalloc(&pdev->dev, sizeof(struct da9063_onkey),  in da9063_onkey_probe()
206 	if (!onkey) {  in da9063_onkey_probe()
207 		dev_err(&pdev->dev, "Failed to allocate memory.\n");  in da9063_onkey_probe()
208 		return -ENOMEM;  in da9063_onkey_probe()
211 	onkey->config = match->data;  in da9063_onkey_probe()
212 	onkey->dev = &pdev->dev;  in da9063_onkey_probe()
214 	onkey->regmap = dev_get_regmap(pdev->dev.parent, NULL);  in da9063_onkey_probe()
215 	if (!onkey->regmap) {  in da9063_onkey_probe()
216 		dev_err(&pdev->dev, "Parent regmap unavailable.\n");  in da9063_onkey_probe()
217 		return -ENXIO;  in da9063_onkey_probe()
220 	onkey->key_power = !of_property_read_bool(pdev->dev.of_node,  in da9063_onkey_probe()
221 						  "dlg,disable-key-power");  in da9063_onkey_probe()
223 	onkey->input = devm_input_allocate_device(&pdev->dev);  in da9063_onkey_probe()
224 	if (!onkey->input) {  in da9063_onkey_probe()
225 		dev_err(&pdev->dev, "Failed to allocated input device.\n");  in da9063_onkey_probe()
226 		return -ENOMEM;  in da9063_onkey_probe()
229 	onkey->input->name = onkey->config->name;  in da9063_onkey_probe()
230 	snprintf(onkey->phys, sizeof(onkey->phys), "%s/input0",  in da9063_onkey_probe()
231 		 onkey->config->name);  in da9063_onkey_probe()
232 	onkey->input->phys = onkey->phys;  in da9063_onkey_probe()
233 	onkey->input->dev.parent = &pdev->dev;  in da9063_onkey_probe()
235 	input_set_capability(onkey->input, EV_KEY, KEY_POWER);  in da9063_onkey_probe()
237 	INIT_DELAYED_WORK(&onkey->work, da9063_poll_on);  in da9063_onkey_probe()
239 	error = devm_add_action(&pdev->dev, da9063_cancel_poll, onkey);  in da9063_onkey_probe()
241 		dev_err(&pdev->dev,  in da9063_onkey_probe()
247 	irq = platform_get_irq_byname(pdev, "ONKEY");  in da9063_onkey_probe()
251 	error = devm_request_threaded_irq(&pdev->dev, irq,  in da9063_onkey_probe()
254 					  "ONKEY", onkey);  in da9063_onkey_probe()
256 		dev_err(&pdev->dev,  in da9063_onkey_probe()
261 	error = input_register_device(onkey->input);  in da9063_onkey_probe()
263 		dev_err(&pdev->dev,  in da9063_onkey_probe()
281 MODULE_DESCRIPTION("Onkey device driver for Dialog DA9063, DA9062 and DA9061");