88 	struct pca9685 *pca = gpiochip_get_data(gpio);  in pca9685_pwm_gpio_request()  local
91 	mutex_lock(&pca->lock);  in pca9685_pwm_gpio_request()
93 	pwm = &pca->chip.pwms[offset];  in pca9685_pwm_gpio_request()
96 		mutex_unlock(&pca->lock);  in pca9685_pwm_gpio_request()
102 	mutex_unlock(&pca->lock);  in pca9685_pwm_gpio_request()
103 	pm_runtime_get_sync(pca->chip.dev);  in pca9685_pwm_gpio_request()
107 static bool pca9685_pwm_is_gpio(struct pca9685 *pca, struct pwm_device *pwm)  in pca9685_pwm_is_gpio()  argument
111 	mutex_lock(&pca->lock);  in pca9685_pwm_is_gpio()
120 		for (i = 0; i < pca->gpio.ngpio; i++)  in pca9685_pwm_is_gpio()
121 			if (gpiochip_is_requested(&pca->gpio, i)) {  in pca9685_pwm_is_gpio()
129 	mutex_unlock(&pca->lock);  in pca9685_pwm_is_gpio()
135 	struct pca9685 *pca = gpiochip_get_data(gpio);  in pca9685_pwm_gpio_get()  local
136 	struct pwm_device *pwm = &pca->chip.pwms[offset];  in pca9685_pwm_gpio_get()
139 	regmap_read(pca->regmap, LED_N_ON_H(pwm->hwpwm), &value);  in pca9685_pwm_gpio_get()
147 	struct pca9685 *pca = gpiochip_get_data(gpio);  in pca9685_pwm_gpio_set()  local
148 	struct pwm_device *pwm = &pca->chip.pwms[offset];  in pca9685_pwm_gpio_set()
152 	regmap_write(pca->regmap, LED_N_OFF_L(pwm->hwpwm), 0);  in pca9685_pwm_gpio_set()
153 	regmap_write(pca->regmap, LED_N_OFF_H(pwm->hwpwm), 0);  in pca9685_pwm_gpio_set()
156 	regmap_write(pca->regmap, LED_N_ON_H(pwm->hwpwm), on);  in pca9685_pwm_gpio_set()
161 	struct pca9685 *pca = gpiochip_get_data(gpio);  in pca9685_pwm_gpio_free()  local
165 	pm_runtime_put(pca->chip.dev);  in pca9685_pwm_gpio_free()
166 	mutex_lock(&pca->lock);  in pca9685_pwm_gpio_free()
167 	pwm = &pca->chip.pwms[offset];  in pca9685_pwm_gpio_free()
168 	mutex_unlock(&pca->lock);  in pca9685_pwm_gpio_free()
198 static int pca9685_pwm_gpio_probe(struct pca9685 *pca)  in pca9685_pwm_gpio_probe()  argument
200 	struct device *dev = pca->chip.dev;  in pca9685_pwm_gpio_probe()
202 	mutex_init(&pca->lock);  in pca9685_pwm_gpio_probe()
204 	pca->gpio.label = dev_name(dev);  in pca9685_pwm_gpio_probe()
205 	pca->gpio.parent = dev;  in pca9685_pwm_gpio_probe()
206 	pca->gpio.request = pca9685_pwm_gpio_request;  in pca9685_pwm_gpio_probe()
207 	pca->gpio.free = pca9685_pwm_gpio_free;  in pca9685_pwm_gpio_probe()
208 	pca->gpio.get_direction = pca9685_pwm_gpio_get_direction;  in pca9685_pwm_gpio_probe()
209 	pca->gpio.direction_input = pca9685_pwm_gpio_direction_input;  in pca9685_pwm_gpio_probe()
210 	pca->gpio.direction_output = pca9685_pwm_gpio_direction_output;  in pca9685_pwm_gpio_probe()
211 	pca->gpio.get = pca9685_pwm_gpio_get;  in pca9685_pwm_gpio_probe()
212 	pca->gpio.set = pca9685_pwm_gpio_set;  in pca9685_pwm_gpio_probe()
213 	pca->gpio.base = -1;  in pca9685_pwm_gpio_probe()
214 	pca->gpio.ngpio = PCA9685_MAXCHAN;  in pca9685_pwm_gpio_probe()
215 	pca->gpio.can_sleep = true;  in pca9685_pwm_gpio_probe()
217 	return devm_gpiochip_add_data(dev, &pca->gpio, pca);  in pca9685_pwm_gpio_probe()
220 static inline bool pca9685_pwm_is_gpio(struct pca9685 *pca,  in pca9685_pwm_is_gpio()  argument
226 static inline int pca9685_pwm_gpio_probe(struct pca9685 *pca)  in pca9685_pwm_gpio_probe()  argument
232 static void pca9685_set_sleep_mode(struct pca9685 *pca, bool enable)  in pca9685_set_sleep_mode()  argument
234 	regmap_update_bits(pca->regmap, PCA9685_MODE1,  in pca9685_set_sleep_mode()
245 	struct pca9685 *pca = to_pca(chip);  in pca9685_pwm_config()  local
250 	if (period_ns != pca->period_ns) {  in pca9685_pwm_config()
263 			pca9685_set_sleep_mode(pca, true);  in pca9685_pwm_config()
266 			regmap_write(pca->regmap, PCA9685_PRESCALE, prescale);  in pca9685_pwm_config()
269 			pca9685_set_sleep_mode(pca, false);  in pca9685_pwm_config()
271 			pca->period_ns = period_ns;  in pca9685_pwm_config()
279 	pca->duty_ns = duty_ns;  in pca9685_pwm_config()
287 		regmap_write(pca->regmap, reg, LED_FULL);  in pca9685_pwm_config()
299 		regmap_write(pca->regmap, reg, 0x0);  in pca9685_pwm_config()
306 		regmap_write(pca->regmap, reg, 0x0);  in pca9685_pwm_config()
314 		regmap_write(pca->regmap, reg, LED_FULL);  in pca9685_pwm_config()
327 	regmap_write(pca->regmap, reg, (int)duty & 0xff);  in pca9685_pwm_config()
334 	regmap_write(pca->regmap, reg, ((int)duty >> 8) & 0xf);  in pca9685_pwm_config()
342 	regmap_write(pca->regmap, reg, 0);  in pca9685_pwm_config()
349 	struct pca9685 *pca = to_pca(chip);  in pca9685_pwm_enable()  local
361 	regmap_write(pca->regmap, reg, 0);  in pca9685_pwm_enable()
368 	regmap_write(pca->regmap, reg, 0);  in pca9685_pwm_enable()
379 	regmap_update_bits(pca->regmap, reg, LED_FULL, 0x0);  in pca9685_pwm_enable()
386 	struct pca9685 *pca = to_pca(chip);  in pca9685_pwm_disable()  local
394 	regmap_write(pca->regmap, reg, LED_FULL);  in pca9685_pwm_disable()
402 	regmap_write(pca->regmap, reg, 0x0);  in pca9685_pwm_disable()
407 	struct pca9685 *pca = to_pca(chip);  in pca9685_pwm_request()  local
409 	if (pca9685_pwm_is_gpio(pca, pwm))  in pca9685_pwm_request()
441 	struct pca9685 *pca;  in pca9685_pwm_probe()  local
445 	pca = devm_kzalloc(&client->dev, sizeof(*pca), GFP_KERNEL);  in pca9685_pwm_probe()
446 	if (!pca)  in pca9685_pwm_probe()
449 	pca->regmap = devm_regmap_init_i2c(client, &pca9685_regmap_i2c_config);  in pca9685_pwm_probe()
450 	if (IS_ERR(pca->regmap)) {  in pca9685_pwm_probe()
451 		ret = PTR_ERR(pca->regmap);  in pca9685_pwm_probe()
456 	pca->duty_ns = 0;  in pca9685_pwm_probe()
457 	pca->period_ns = PCA9685_DEFAULT_PERIOD;  in pca9685_pwm_probe()
459 	i2c_set_clientdata(client, pca);  in pca9685_pwm_probe()
461 	regmap_read(pca->regmap, PCA9685_MODE2, &mode2);  in pca9685_pwm_probe()
473 	regmap_write(pca->regmap, PCA9685_MODE2, mode2);  in pca9685_pwm_probe()
476 	regmap_write(pca->regmap, PCA9685_ALL_LED_OFF_L, 0);  in pca9685_pwm_probe()
477 	regmap_write(pca->regmap, PCA9685_ALL_LED_OFF_H, 0);  in pca9685_pwm_probe()
479 	pca->chip.ops = &pca9685_pwm_ops;  in pca9685_pwm_probe()
481 	pca->chip.npwm = PCA9685_MAXCHAN + 1;  in pca9685_pwm_probe()
483 	pca->chip.dev = &client->dev;  in pca9685_pwm_probe()
484 	pca->chip.base = -1;  in pca9685_pwm_probe()
486 	ret = pwmchip_add(&pca->chip);  in pca9685_pwm_probe()
490 	ret = pca9685_pwm_gpio_probe(pca);  in pca9685_pwm_probe()
492 		pwmchip_remove(&pca->chip);  in pca9685_pwm_probe()
509 	struct pca9685 *pca = i2c_get_clientdata(client);  in pca9685_pwm_remove()  local
512 	ret = pwmchip_remove(&pca->chip);  in pca9685_pwm_remove()
523 	struct pca9685 *pca = i2c_get_clientdata(client);  in pca9685_pwm_runtime_suspend()  local
525 	pca9685_set_sleep_mode(pca, true);  in pca9685_pwm_runtime_suspend()
532 	struct pca9685 *pca = i2c_get_clientdata(client);  in pca9685_pwm_runtime_resume()  local
534 	pca9685_set_sleep_mode(pca, false);  in pca9685_pwm_runtime_resume()