4  * SPDX-License-Identifier: Apache-2.0
10 #include <zephyr/drivers/pwm.h>
30 	pwm_mode_t mode;  member
46 	const struct pwm_mcux_config *config = dev->config;  in mcux_pwm_set_cycles_internal()
47 	struct pwm_mcux_data *data = dev->data;  in mcux_pwm_set_cycles_internal()
56 	if (period_cycles != data->period_cycles[channel]  in mcux_pwm_set_cycles_internal()
57 	    || level != data->channel[channel].level) {  in mcux_pwm_set_cycles_internal()
61 		data->period_cycles[channel] = period_cycles;  in mcux_pwm_set_cycles_internal()
63 		if (clock_control_get_rate(config->clock_dev, config->clock_subsys,  in mcux_pwm_set_cycles_internal()
65 			return -EINVAL;  in mcux_pwm_set_cycles_internal()
68 		data->channel[channel].pwmchannelenable = true;  in mcux_pwm_set_cycles_internal()
70 		PWM_StopTimer(config->base, 1U << config->index);  in mcux_pwm_set_cycles_internal()
75 		 * setup PWM with higher resolution.  in mcux_pwm_set_cycles_internal()
79 		data->channel[channel].dutyCyclePercent = 0;  in mcux_pwm_set_cycles_internal()
80 		data->channel[channel].level = level;  in mcux_pwm_set_cycles_internal()
82 		status = PWM_SetupPwm(config->base, config->index,  in mcux_pwm_set_cycles_internal()
83 				      &data->channel[channel], 1U,  in mcux_pwm_set_cycles_internal()
84 				      config->mode, 1U, clock_freq);  in mcux_pwm_set_cycles_internal()
86 			LOG_ERR("Could not set up pwm");  in mcux_pwm_set_cycles_internal()
87 			return -ENOTSUP;  in mcux_pwm_set_cycles_internal()
90 		/* Setup VALx values directly for edge aligned PWM */  in mcux_pwm_set_cycles_internal()
93 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
96 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
98 					 (uint16_t)(period_cycles - 1U));  in mcux_pwm_set_cycles_internal()
99 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
101 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
106 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
109 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
111 					 (uint16_t)(period_cycles - 1U));  in mcux_pwm_set_cycles_internal()
112 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
114 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
119 		PWM_SetPwmLdok(config->base, 1U << config->index, true);  in mcux_pwm_set_cycles_internal()
121 		PWM_StartTimer(config->base, 1U << config->index);  in mcux_pwm_set_cycles_internal()
123 		/* Setup VALx values directly for edge aligned PWM */  in mcux_pwm_set_cycles_internal()
126 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
128 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
133 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
135 			PWM_SetVALxValue(config->base, config->index,  in mcux_pwm_set_cycles_internal()
139 		PWM_SetPwmLdok(config->base, 1U << config->index, true);  in mcux_pwm_set_cycles_internal()
149 	struct pwm_mcux_data *data = dev->data;  in mcux_pwm_set_cycles()
154 		return -EINVAL;  in mcux_pwm_set_cycles()
159 		return -ENOTSUP;  in mcux_pwm_set_cycles()
163 		/* 16-bit resolution */  in mcux_pwm_set_cycles()
164 		LOG_ERR("Too long period (%u), adjust pwm prescaler!",  in mcux_pwm_set_cycles()
167 		return -EINVAL;  in mcux_pwm_set_cycles()
169 	k_mutex_lock(&data->lock, K_FOREVER);  in mcux_pwm_set_cycles()
171 	k_mutex_unlock(&data->lock);  in mcux_pwm_set_cycles()
178 	const struct pwm_mcux_config *config = dev->config;  in mcux_pwm_get_cycles_per_sec()
181 	if (clock_control_get_rate(config->clock_dev, config->clock_subsys,  in mcux_pwm_get_cycles_per_sec()
183 		return -EINVAL;  in mcux_pwm_get_cycles_per_sec()
185 	*cycles = clock_freq >> config->prescale;  in mcux_pwm_get_cycles_per_sec()
192 	const struct pwm_mcux_config *config = dev->config;  in pwm_mcux_init()
193 	struct pwm_mcux_data *data = dev->data;  in pwm_mcux_init()
198 	k_mutex_init(&data->lock);  in pwm_mcux_init()
200 	if (!device_is_ready(config->clock_dev)) {  in pwm_mcux_init()
202 		return -ENODEV;  in pwm_mcux_init()
205 	err = pinctrl_apply_state(config->pincfg, PINCTRL_STATE_DEFAULT);  in pwm_mcux_init()
210 	LOG_DBG("Set prescaler %d, reload mode %d",  in pwm_mcux_init()
211 			1 << config->prescale, config->reload);  in pwm_mcux_init()
214 	pwm_config.prescale = config->prescale;  in pwm_mcux_init()
215 	pwm_config.reloadLogic = config->reload;  in pwm_mcux_init()
217 	pwm_config.enableDebugMode = config->run_debug;  in pwm_mcux_init()
219 	pwm_config.enableWait = config->run_wait;  in pwm_mcux_init()
222 	status = PWM_Init(config->base, config->index, &pwm_config);  in pwm_mcux_init()
224 		LOG_ERR("Unable to init PWM");  in pwm_mcux_init()
225 		return -EIO;  in pwm_mcux_init()
230 		config->base->SM[config->index].DISMAP[i] = 0x0000;  in pwm_mcux_init()
233 	data->channel[0].pwmChannel = kPWM_PwmA;  in pwm_mcux_init()
234 	data->channel[0].level = kPWM_HighTrue;  in pwm_mcux_init()
235 	data->channel[1].pwmChannel = kPWM_PwmB;  in pwm_mcux_init()
236 	data->channel[1].level = kPWM_HighTrue;  in pwm_mcux_init()
241 static DEVICE_API(pwm, pwm_mcux_driver_api) = {
253 		.mode = kPWM_EdgeAligned,				  \