71 static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic)  in max77693_haptic_set_duty_cycle()  argument
77 	pwm_get_args(haptic->pwm_dev, &pargs);  in max77693_haptic_set_duty_cycle()
78 	delta = (pargs.period + haptic->pwm_duty) / 2;  in max77693_haptic_set_duty_cycle()
79 	error = pwm_config(haptic->pwm_dev, delta, pargs.period);  in max77693_haptic_set_duty_cycle()
81 		dev_err(haptic->dev, "failed to configure pwm: %d\n", error);  in max77693_haptic_set_duty_cycle()
88 static int max77843_haptic_bias(struct max77693_haptic *haptic, bool on)  in max77843_haptic_bias()  argument
92 	if (haptic->dev_type != TYPE_MAX77843)  in max77843_haptic_bias()
95 	error = regmap_update_bits(haptic->regmap_haptic,  in max77843_haptic_bias()
100 		dev_err(haptic->dev, "failed to %s bias: %d\n",  in max77843_haptic_bias()
108 static int max77693_haptic_configure(struct max77693_haptic *haptic,  in max77693_haptic_configure()  argument
114 	switch (haptic->dev_type) {  in max77693_haptic_configure()
116 		value = ((haptic->type << MAX77693_CONFIG2_MODE) |  in max77693_haptic_configure()
118 			(haptic->mode << MAX77693_CONFIG2_HTYP) |  in max77693_haptic_configure()
123 		value = (haptic->type << MCONFIG_MODE_SHIFT) |  in max77693_haptic_configure()
132 	error = regmap_write(haptic->regmap_haptic,  in max77693_haptic_configure()
135 		dev_err(haptic->dev,  in max77693_haptic_configure()
143 static int max77693_haptic_lowsys(struct max77693_haptic *haptic, bool enable)  in max77693_haptic_lowsys()  argument
147 	if (haptic->dev_type != TYPE_MAX77693)  in max77693_haptic_lowsys()
150 	error = regmap_update_bits(haptic->regmap_pmic,  in max77693_haptic_lowsys()
155 		dev_err(haptic->dev, "cannot update pmic regmap: %d\n", error);  in max77693_haptic_lowsys()
162 static void max77693_haptic_enable(struct max77693_haptic *haptic)  in max77693_haptic_enable()  argument
166 	if (haptic->enabled)  in max77693_haptic_enable()
169 	error = pwm_enable(haptic->pwm_dev);  in max77693_haptic_enable()
171 		dev_err(haptic->dev,  in max77693_haptic_enable()
176 	error = max77693_haptic_lowsys(haptic, true);  in max77693_haptic_enable()
180 	error = max77693_haptic_configure(haptic, true);  in max77693_haptic_enable()
184 	haptic->enabled = true;  in max77693_haptic_enable()
189 	max77693_haptic_lowsys(haptic, false);  in max77693_haptic_enable()
191 	pwm_disable(haptic->pwm_dev);  in max77693_haptic_enable()
194 static void max77693_haptic_disable(struct max77693_haptic *haptic)  in max77693_haptic_disable()  argument
198 	if (!haptic->enabled)  in max77693_haptic_disable()
201 	error = max77693_haptic_configure(haptic, false);  in max77693_haptic_disable()
205 	error = max77693_haptic_lowsys(haptic, false);  in max77693_haptic_disable()
209 	pwm_disable(haptic->pwm_dev);  in max77693_haptic_disable()
210 	haptic->enabled = false;  in max77693_haptic_disable()
215 	max77693_haptic_configure(haptic, true);  in max77693_haptic_disable()
220 	struct max77693_haptic *haptic =  in max77693_haptic_play_work()  local
224 	error = max77693_haptic_set_duty_cycle(haptic);  in max77693_haptic_play_work()
226 		dev_err(haptic->dev, "failed to set duty cycle: %d\n", error);  in max77693_haptic_play_work()
230 	if (haptic->magnitude)  in max77693_haptic_play_work()
231 		max77693_haptic_enable(haptic);  in max77693_haptic_play_work()
233 		max77693_haptic_disable(haptic);  in max77693_haptic_play_work()
239 	struct max77693_haptic *haptic = input_get_drvdata(dev);  in max77693_haptic_play_effect()  local
243 	haptic->magnitude = effect->u.rumble.strong_magnitude;  in max77693_haptic_play_effect()
244 	if (!haptic->magnitude)  in max77693_haptic_play_effect()
245 		haptic->magnitude = effect->u.rumble.weak_magnitude;  in max77693_haptic_play_effect()
252 	pwm_get_args(haptic->pwm_dev, &pargs);  in max77693_haptic_play_effect()
253 	period_mag_multi = (u64)pargs.period * haptic->magnitude;  in max77693_haptic_play_effect()
254 	haptic->pwm_duty = (unsigned int)(period_mag_multi >>  in max77693_haptic_play_effect()
257 	schedule_work(&haptic->work);  in max77693_haptic_play_effect()
264 	struct max77693_haptic *haptic = input_get_drvdata(dev);  in max77693_haptic_open()  local
267 	error = max77843_haptic_bias(haptic, true);  in max77693_haptic_open()
271 	error = regulator_enable(haptic->motor_reg);  in max77693_haptic_open()
273 		dev_err(haptic->dev,  in max77693_haptic_open()
283 	struct max77693_haptic *haptic = input_get_drvdata(dev);  in max77693_haptic_close()  local
286 	cancel_work_sync(&haptic->work);  in max77693_haptic_close()
287 	max77693_haptic_disable(haptic);  in max77693_haptic_close()
289 	error = regulator_disable(haptic->motor_reg);  in max77693_haptic_close()
291 		dev_err(haptic->dev,  in max77693_haptic_close()
294 	max77843_haptic_bias(haptic, false);  in max77693_haptic_close()
300 	struct max77693_haptic *haptic;  in max77693_haptic_probe()  local
303 	haptic = devm_kzalloc(&pdev->dev, sizeof(*haptic), GFP_KERNEL);  in max77693_haptic_probe()
304 	if (!haptic)  in max77693_haptic_probe()
307 	haptic->regmap_pmic = max77693->regmap;  in max77693_haptic_probe()
308 	haptic->dev = &pdev->dev;  in max77693_haptic_probe()
309 	haptic->type = MAX77693_HAPTIC_LRA;  in max77693_haptic_probe()
310 	haptic->mode = MAX77693_HAPTIC_EXTERNAL_MODE;  in max77693_haptic_probe()
311 	haptic->suspend_state = false;  in max77693_haptic_probe()
314 	haptic->dev_type = platform_get_device_id(pdev)->driver_data;  in max77693_haptic_probe()
315 	switch (haptic->dev_type) {  in max77693_haptic_probe()
317 		haptic->regmap_haptic = max77693->regmap_haptic;  in max77693_haptic_probe()
320 		haptic->regmap_haptic = max77693->regmap;  in max77693_haptic_probe()
324 			haptic->dev_type);  in max77693_haptic_probe()
328 	INIT_WORK(&haptic->work, max77693_haptic_play_work);  in max77693_haptic_probe()
331 	haptic->pwm_dev = devm_pwm_get(&pdev->dev, NULL);  in max77693_haptic_probe()
332 	if (IS_ERR(haptic->pwm_dev)) {  in max77693_haptic_probe()
334 		return PTR_ERR(haptic->pwm_dev);  in max77693_haptic_probe()
341 	pwm_apply_args(haptic->pwm_dev);  in max77693_haptic_probe()
343 	haptic->motor_reg = devm_regulator_get(&pdev->dev, "haptic");  in max77693_haptic_probe()
344 	if (IS_ERR(haptic->motor_reg)) {  in max77693_haptic_probe()
346 		return PTR_ERR(haptic->motor_reg);  in max77693_haptic_probe()
350 	haptic->input_dev = devm_input_allocate_device(&pdev->dev);  in max77693_haptic_probe()
351 	if (!haptic->input_dev) {  in max77693_haptic_probe()
356 	haptic->input_dev->name = "max77693-haptic";  in max77693_haptic_probe()
357 	haptic->input_dev->id.version = 1;  in max77693_haptic_probe()
358 	haptic->input_dev->dev.parent = &pdev->dev;  in max77693_haptic_probe()
359 	haptic->input_dev->open = max77693_haptic_open;  in max77693_haptic_probe()
360 	haptic->input_dev->close = max77693_haptic_close;  in max77693_haptic_probe()
361 	input_set_drvdata(haptic->input_dev, haptic);  in max77693_haptic_probe()
362 	input_set_capability(haptic->input_dev, EV_FF, FF_RUMBLE);  in max77693_haptic_probe()
364 	error = input_ff_create_memless(haptic->input_dev, NULL,  in max77693_haptic_probe()
371 	error = input_register_device(haptic->input_dev);  in max77693_haptic_probe()
377 	platform_set_drvdata(pdev, haptic);  in max77693_haptic_probe()
385 	struct max77693_haptic *haptic = platform_get_drvdata(pdev);  in max77693_haptic_suspend()  local
387 	if (haptic->enabled) {  in max77693_haptic_suspend()
388 		max77693_haptic_disable(haptic);  in max77693_haptic_suspend()
389 		haptic->suspend_state = true;  in max77693_haptic_suspend()
398 	struct max77693_haptic *haptic = platform_get_drvdata(pdev);  in max77693_haptic_resume()  local
400 	if (haptic->suspend_state) {  in max77693_haptic_resume()
401 		max77693_haptic_enable(haptic);  in max77693_haptic_resume()
402 		haptic->suspend_state = false;  in max77693_haptic_resume()