4  * SPDX-License-Identifier: Apache-2.0
15 #include <zephyr/drivers/pwm.h>
23 /* PWM Controller capabilities */
31 	((uint32_t)((channel * RCAR_PWM_REG_SHIFT)) + 0x00) /* PWM Control Register */
33 	((uint32_t)((channel * RCAR_PWM_REG_SHIFT)) + 0x04) /* PWM Count Register */
35 /* PWMCR (PWM Control Register) */
38 #define RCAR_PWM_CR_CCMD     BIT(15) /* Frequency Division Mode */
43 /* PWM Diviser is on 5 bits (CC combined with CCMD) */
47 /* PWMCNT (PWM Count Register) */
48 #define RCAR_PWM_CNT_CYC_MASK  0x03ff0000 /* PWM Cycle */
50 #define RCAR_PWM_CNT_PH_MASK   0x000003ff /* PWM High-Level Period */
67 	return sys_read32(config->reg_addr + offs);  in pwm_rcar_read()
72 	sys_write32(value, config->reg_addr + offs);  in pwm_rcar_write()
109 				return -ENOTSUP;  in pwm_rcar_update_clk()
116 				return -ENOTSUP;  in pwm_rcar_update_clk()
121 			power--;  in pwm_rcar_update_clk()
138 	const struct pwm_rcar_cfg *config = dev->config;  in pwm_rcar_set_cycles()
143 		return -ENOTSUP;  in pwm_rcar_set_cycles()
147 		return -ENOTSUP;  in pwm_rcar_set_cycles()
152 		return -EINVAL;  in pwm_rcar_set_cycles()
157 		config->reg_addr, pulse_cycles, period_cycles,  in pwm_rcar_set_cycles()
160 	/* Disable PWM */  in pwm_rcar_set_cycles()
163 	/* Set continuous mode */  in pwm_rcar_set_cycles()
166 	/* Enable SYNC mode */  in pwm_rcar_set_cycles()
194 	/* Enable PWM */  in pwm_rcar_set_cycles()
202 	const struct pwm_rcar_cfg *config = dev->config;  in pwm_rcar_get_cycles_per_sec()
203 	struct pwm_rcar_data *data = dev->data;  in pwm_rcar_get_cycles_per_sec()
207 		return -ENOTSUP;  in pwm_rcar_get_cycles_per_sec()
212 	*cycles = data->clk_rate >> diviser;  in pwm_rcar_get_cycles_per_sec()
221 	const struct pwm_rcar_cfg *config = dev->config;  in pwm_rcar_init()
222 	struct pwm_rcar_data *data = dev->data;  in pwm_rcar_init()
226 	ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in pwm_rcar_init()
231 	ret = clock_control_on(config->clock_dev, (clock_control_subsys_t)&config->mod_clk);  in pwm_rcar_init()
236 	ret = clock_control_get_rate(config->clock_dev, (clock_control_subsys_t)&config->core_clk,  in pwm_rcar_init()
237 				     &data->clk_rate);  in pwm_rcar_init()
246 static DEVICE_API(pwm, pwm_rcar_driver_api) = {