4  * SPDX-License-Identifier: Apache-2.0
10 #include <zephyr/dt-bindings/pwm/pwm.h>
38 	const struct pwm_xmc4xxx_ccu8_config *config = dev->config;  in pwm_xmc4xxx_ccu8_init()
41 	XMC_CCU8_EnableModule(config->ccu8);  in pwm_xmc4xxx_ccu8_init()
42 	XMC_CCU8_StartPrescaler(config->ccu8);  in pwm_xmc4xxx_ccu8_init()
45 		XMC_CCU8_SLICE_t *slice;  in pwm_xmc4xxx_ccu8_init()  local
48 			.prescaler_initval = config->slice_prescaler[i],  in pwm_xmc4xxx_ccu8_init()
53 		if (config->slice_prescaler[i] > MAX_SLICE_PRESCALER) {  in pwm_xmc4xxx_ccu8_init()
55 				config->slice_prescaler[i]);  in pwm_xmc4xxx_ccu8_init()
56 			return -EINVAL;  in pwm_xmc4xxx_ccu8_init()
59 		if (config->slice_deadtime_prescaler[i] > MAX_DEADTIME_PRESCALER) {  in pwm_xmc4xxx_ccu8_init()
60 			LOG_ERR("Invalid dead time prescaler value %d. Range [0, 3]",  in pwm_xmc4xxx_ccu8_init()
61 				config->slice_deadtime_prescaler[i]);  in pwm_xmc4xxx_ccu8_init()
62 			return -EINVAL;  in pwm_xmc4xxx_ccu8_init()
65 		slice = (XMC_CCU8_SLICE_t *)SLICE_ADDR_FROM_MODULE(config->ccu8, i);  in pwm_xmc4xxx_ccu8_init()
66 		XMC_CCU8_SLICE_CompareInit(slice, &slice_conf);  in pwm_xmc4xxx_ccu8_init()
68 		deadtime_conf.div = config->slice_deadtime_prescaler[i];  in pwm_xmc4xxx_ccu8_init()
69 		if (config->deadtime_high_ns[2*i] > 0 || config->deadtime_low_ns[2*i] > 0) {  in pwm_xmc4xxx_ccu8_init()
72 		deadtime_conf.channel1_st_path = config->deadtime_high_ns[2*i] > 0;  in pwm_xmc4xxx_ccu8_init()
73 		deadtime_conf.channel1_inv_st_path = config->deadtime_low_ns[2*i] > 0;  in pwm_xmc4xxx_ccu8_init()
75 		if (config->deadtime_high_ns[2*i + 1] > 0 || config->deadtime_low_ns[2*i + 1] > 0) {  in pwm_xmc4xxx_ccu8_init()
78 		deadtime_conf.channel2_st_path = config->deadtime_high_ns[2*i + 1] > 0;  in pwm_xmc4xxx_ccu8_init()
79 		deadtime_conf.channel2_inv_st_path = config->deadtime_low_ns[2*i + 1] > 0;  in pwm_xmc4xxx_ccu8_init()
81 		XMC_CCU8_SLICE_DeadTimeInit(slice, &deadtime_conf);  in pwm_xmc4xxx_ccu8_init()
84 	return pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in pwm_xmc4xxx_ccu8_init()
91 	const struct pwm_xmc4xxx_ccu8_config *config = dev->config;  in pwm_xmc4xxx_ccu8_set_cycles()
92 	XMC_CCU8_SLICE_t *slice;  in pwm_xmc4xxx_ccu8_set_cycles()  local
98 		return -EINVAL;  in pwm_xmc4xxx_ccu8_set_cycles()
102 		return -EINVAL;  in pwm_xmc4xxx_ccu8_set_cycles()
105 	slice = (XMC_CCU8_SLICE_t *)SLICE_ADDR_FROM_MODULE(config->ccu8, slice_idx);  in pwm_xmc4xxx_ccu8_set_cycles()
106 	slice->PRS = period_cycles - 1;  in pwm_xmc4xxx_ccu8_set_cycles()
109 		slice->CR2S = period_cycles - pulse_cycles;  in pwm_xmc4xxx_ccu8_set_cycles()
111 		slice->CR1S = period_cycles - pulse_cycles;  in pwm_xmc4xxx_ccu8_set_cycles()
113 	slice->PSL = flags & PWM_POLARITY_INVERTED;  in pwm_xmc4xxx_ccu8_set_cycles()
116 	cycles = XMC_SCU_CLOCK_GetCcuClockFrequency() >> config->slice_prescaler[slice_idx];  in pwm_xmc4xxx_ccu8_set_cycles()
117 	cycles >>= config->slice_deadtime_prescaler[slice_idx];  in pwm_xmc4xxx_ccu8_set_cycles()
118 	high_deadtime_value = config->deadtime_high_ns[channel] * cycles / NSEC_PER_SEC;  in pwm_xmc4xxx_ccu8_set_cycles()
119 	low_deadtime_value = config->deadtime_low_ns[channel] * cycles / NSEC_PER_SEC;  in pwm_xmc4xxx_ccu8_set_cycles()
122 		return -EINVAL;  in pwm_xmc4xxx_ccu8_set_cycles()
125 	XMC_CCU8_SLICE_SetDeadTimeValue(slice, channel & 0x1, high_deadtime_value,  in pwm_xmc4xxx_ccu8_set_cycles()
128 	XMC_CCU8_EnableShadowTransfer(config->ccu8, BIT(slice_idx * 4));  in pwm_xmc4xxx_ccu8_set_cycles()
131 	XMC_CCU8_EnableClock(config->ccu8, slice_idx);  in pwm_xmc4xxx_ccu8_set_cycles()
132 	XMC_CCU8_SLICE_StartTimer(slice);  in pwm_xmc4xxx_ccu8_set_cycles()
140 	const struct pwm_xmc4xxx_ccu8_config *config = dev->config;  in pwm_xmc4xxx_ccu8_get_cycles_per_sec()
143 		return -EINVAL;  in pwm_xmc4xxx_ccu8_get_cycles_per_sec()
146 	*cycles = XMC_SCU_CLOCK_GetCcuClockFrequency() >> config->slice_prescaler[channel / 2];  in pwm_xmc4xxx_ccu8_get_cycles_per_sec()