71 static int max77693_haptic_set_duty_cycle(struct max77693_haptic *haptic)  in max77693_haptic_set_duty_cycle()  argument
73 	int delta = (haptic->pwm_dev->period + haptic->pwm_duty) / 2;  in max77693_haptic_set_duty_cycle()
76 	error = pwm_config(haptic->pwm_dev, delta, haptic->pwm_dev->period);  in max77693_haptic_set_duty_cycle()
78 		dev_err(haptic->dev, "failed to configure pwm: %d\n", error);  in max77693_haptic_set_duty_cycle()
85 static int max77843_haptic_bias(struct max77693_haptic *haptic, bool on)  in max77843_haptic_bias()  argument
89 	if (haptic->dev_type != TYPE_MAX77843)  in max77843_haptic_bias()
92 	error = regmap_update_bits(haptic->regmap_haptic,  in max77843_haptic_bias()
97 		dev_err(haptic->dev, "failed to %s bias: %d\n",  in max77843_haptic_bias()
105 static int max77693_haptic_configure(struct max77693_haptic *haptic,  in max77693_haptic_configure()  argument
111 	switch (haptic->dev_type) {  in max77693_haptic_configure()
113 		value = ((haptic->type << MAX77693_CONFIG2_MODE) |  in max77693_haptic_configure()
115 			(haptic->mode << MAX77693_CONFIG2_HTYP) |  in max77693_haptic_configure()
120 		value = (haptic->type << MCONFIG_MODE_SHIFT) |  in max77693_haptic_configure()
129 	error = regmap_write(haptic->regmap_haptic,  in max77693_haptic_configure()
132 		dev_err(haptic->dev,  in max77693_haptic_configure()
140 static int max77693_haptic_lowsys(struct max77693_haptic *haptic, bool enable)  in max77693_haptic_lowsys()  argument
144 	if (haptic->dev_type != TYPE_MAX77693)  in max77693_haptic_lowsys()
147 	error = regmap_update_bits(haptic->regmap_pmic,  in max77693_haptic_lowsys()
152 		dev_err(haptic->dev, "cannot update pmic regmap: %d\n", error);  in max77693_haptic_lowsys()
159 static void max77693_haptic_enable(struct max77693_haptic *haptic)  in max77693_haptic_enable()  argument
163 	if (haptic->enabled)  in max77693_haptic_enable()
166 	error = pwm_enable(haptic->pwm_dev);  in max77693_haptic_enable()
168 		dev_err(haptic->dev,  in max77693_haptic_enable()
173 	error = max77693_haptic_lowsys(haptic, true);  in max77693_haptic_enable()
177 	error = max77693_haptic_configure(haptic, true);  in max77693_haptic_enable()
181 	haptic->enabled = true;  in max77693_haptic_enable()
186 	max77693_haptic_lowsys(haptic, false);  in max77693_haptic_enable()
188 	pwm_disable(haptic->pwm_dev);  in max77693_haptic_enable()
191 static void max77693_haptic_disable(struct max77693_haptic *haptic)  in max77693_haptic_disable()  argument
195 	if (!haptic->enabled)  in max77693_haptic_disable()
198 	error = max77693_haptic_configure(haptic, false);  in max77693_haptic_disable()
202 	error = max77693_haptic_lowsys(haptic, false);  in max77693_haptic_disable()
206 	pwm_disable(haptic->pwm_dev);  in max77693_haptic_disable()
207 	haptic->enabled = false;  in max77693_haptic_disable()
212 	max77693_haptic_configure(haptic, true);  in max77693_haptic_disable()
217 	struct max77693_haptic *haptic =  in max77693_haptic_play_work()  local
221 	error = max77693_haptic_set_duty_cycle(haptic);  in max77693_haptic_play_work()
223 		dev_err(haptic->dev, "failed to set duty cycle: %d\n", error);  in max77693_haptic_play_work()
227 	if (haptic->magnitude)  in max77693_haptic_play_work()
228 		max77693_haptic_enable(haptic);  in max77693_haptic_play_work()
230 		max77693_haptic_disable(haptic);  in max77693_haptic_play_work()
236 	struct max77693_haptic *haptic = input_get_drvdata(dev);  in max77693_haptic_play_effect()  local
239 	haptic->magnitude = effect->u.rumble.strong_magnitude;  in max77693_haptic_play_effect()
240 	if (!haptic->magnitude)  in max77693_haptic_play_effect()
241 		haptic->magnitude = effect->u.rumble.weak_magnitude;  in max77693_haptic_play_effect()
248 	period_mag_multi = (u64)haptic->pwm_dev->period * haptic->magnitude;  in max77693_haptic_play_effect()
249 	haptic->pwm_duty = (unsigned int)(period_mag_multi >>  in max77693_haptic_play_effect()
252 	schedule_work(&haptic->work);  in max77693_haptic_play_effect()
259 	struct max77693_haptic *haptic = input_get_drvdata(dev);  in max77693_haptic_open()  local
262 	error = max77843_haptic_bias(haptic, true);  in max77693_haptic_open()
266 	error = regulator_enable(haptic->motor_reg);  in max77693_haptic_open()
268 		dev_err(haptic->dev,  in max77693_haptic_open()
278 	struct max77693_haptic *haptic = input_get_drvdata(dev);  in max77693_haptic_close()  local
281 	cancel_work_sync(&haptic->work);  in max77693_haptic_close()
282 	max77693_haptic_disable(haptic);  in max77693_haptic_close()
284 	error = regulator_disable(haptic->motor_reg);  in max77693_haptic_close()
286 		dev_err(haptic->dev,  in max77693_haptic_close()
289 	max77843_haptic_bias(haptic, false);  in max77693_haptic_close()
295 	struct max77693_haptic *haptic;  in max77693_haptic_probe()  local
298 	haptic = devm_kzalloc(&pdev->dev, sizeof(*haptic), GFP_KERNEL);  in max77693_haptic_probe()
299 	if (!haptic)  in max77693_haptic_probe()
302 	haptic->regmap_pmic = max77693->regmap;  in max77693_haptic_probe()
303 	haptic->dev = &pdev->dev;  in max77693_haptic_probe()
304 	haptic->type = MAX77693_HAPTIC_LRA;  in max77693_haptic_probe()
305 	haptic->mode = MAX77693_HAPTIC_EXTERNAL_MODE;  in max77693_haptic_probe()
306 	haptic->suspend_state = false;  in max77693_haptic_probe()
309 	haptic->dev_type = platform_get_device_id(pdev)->driver_data;  in max77693_haptic_probe()
310 	switch (haptic->dev_type) {  in max77693_haptic_probe()
312 		haptic->regmap_haptic = max77693->regmap_haptic;  in max77693_haptic_probe()
315 		haptic->regmap_haptic = max77693->regmap;  in max77693_haptic_probe()
319 			haptic->dev_type);  in max77693_haptic_probe()
323 	INIT_WORK(&haptic->work, max77693_haptic_play_work);  in max77693_haptic_probe()
326 	haptic->pwm_dev = devm_pwm_get(&pdev->dev, NULL);  in max77693_haptic_probe()
327 	if (IS_ERR(haptic->pwm_dev)) {  in max77693_haptic_probe()
329 		return PTR_ERR(haptic->pwm_dev);  in max77693_haptic_probe()
332 	haptic->motor_reg = devm_regulator_get(&pdev->dev, "haptic");  in max77693_haptic_probe()
333 	if (IS_ERR(haptic->motor_reg)) {  in max77693_haptic_probe()
335 		return PTR_ERR(haptic->motor_reg);  in max77693_haptic_probe()
339 	haptic->input_dev = devm_input_allocate_device(&pdev->dev);  in max77693_haptic_probe()
340 	if (!haptic->input_dev) {  in max77693_haptic_probe()
345 	haptic->input_dev->name = "max77693-haptic";  in max77693_haptic_probe()
346 	haptic->input_dev->id.version = 1;  in max77693_haptic_probe()
347 	haptic->input_dev->dev.parent = &pdev->dev;  in max77693_haptic_probe()
348 	haptic->input_dev->open = max77693_haptic_open;  in max77693_haptic_probe()
349 	haptic->input_dev->close = max77693_haptic_close;  in max77693_haptic_probe()
350 	input_set_drvdata(haptic->input_dev, haptic);  in max77693_haptic_probe()
351 	input_set_capability(haptic->input_dev, EV_FF, FF_RUMBLE);  in max77693_haptic_probe()
353 	error = input_ff_create_memless(haptic->input_dev, NULL,  in max77693_haptic_probe()
360 	error = input_register_device(haptic->input_dev);  in max77693_haptic_probe()
366 	platform_set_drvdata(pdev, haptic);  in max77693_haptic_probe()
374 	struct max77693_haptic *haptic = platform_get_drvdata(pdev);  in max77693_haptic_suspend()  local
376 	if (haptic->enabled) {  in max77693_haptic_suspend()
377 		max77693_haptic_disable(haptic);  in max77693_haptic_suspend()
378 		haptic->suspend_state = true;  in max77693_haptic_suspend()
387 	struct max77693_haptic *haptic = platform_get_drvdata(pdev);  in max77693_haptic_resume()  local
389 	if (haptic->suspend_state) {  in max77693_haptic_resume()
390 		max77693_haptic_enable(haptic);  in max77693_haptic_resume()
391 		haptic->suspend_state = false;  in max77693_haptic_resume()