4  * SPDX-License-Identifier: Apache-2.0
18 #include <zephyr/dt-bindings/i2c/it8xxx2-i2c.h>
25 #include "i2c-priv.h"
89 	/* operation freq of i2c */
96 	uint8_t freq;  member
108 	/* Bus error */
114 	/* Time-out error */
134 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_parsing_return_value()
135 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_parsing_return_value()
137 	if (!data->err) {  in i2c_parsing_return_value()
141 	if (data->err == ETIMEDOUT) {  in i2c_parsing_return_value()
144 			config->port, data->addr_16bit);  in i2c_parsing_return_value()
147 			config->port, data->addr_16bit);  in i2c_parsing_return_value()
149 		if (data->err & HOSTA_TMOE) {  in i2c_parsing_return_value()
150 			LOG_ERR("Time-out error: hardware time-out error.");  in i2c_parsing_return_value()
152 		if (data->err & HOSTA_NACK) {  in i2c_parsing_return_value()
155 		if (data->err & HOSTA_FAIL) {  in i2c_parsing_return_value()
158 		if (data->err & HOSTA_BSER) {  in i2c_parsing_return_value()
159 			LOG_ERR("BUS error: SMBus has lost arbitration.");  in i2c_parsing_return_value()
163 	return -EIO;  in i2c_parsing_return_value()
168 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_get_line_levels()
169 	uint8_t *base = config->base;  in i2c_get_line_levels()
177 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_is_busy()
178 	uint8_t *base = config->base;  in i2c_is_busy()
188 		return -EIO;  in i2c_bus_not_available()
196 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_reset()
197 	uint8_t *base = config->base;  in i2c_reset()
238 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_standard_port_set_frequency()
246 		i2c_standard_port_timing_regs_400khz(config->port);  in i2c_standard_port_set_frequency()
248 		IT8XXX2_SMB_SCLKTS(config->port) = freq_set;  in i2c_standard_port_set_frequency()
258 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_it8xxx2_configure()
259 	struct i2c_it8xxx2_data *const data = dev->data;  in i2c_it8xxx2_configure()
263 		return -EINVAL;  in i2c_it8xxx2_configure()
267 		return -EINVAL;  in i2c_it8xxx2_configure()
270 	data->bus_freq = I2C_SPEED_GET(dev_config_raw);  in i2c_it8xxx2_configure()
272 	switch (data->bus_freq) {  in i2c_it8xxx2_configure()
286 		return -EINVAL;  in i2c_it8xxx2_configure()
289 	i2c_standard_port_set_frequency(dev, config->bitrate, freq_set);  in i2c_it8xxx2_configure()
297 	struct i2c_it8xxx2_data *const data = dev->data;  in i2c_it8xxx2_get_config()
300 	if (!data->bus_freq) {  in i2c_it8xxx2_get_config()
301 		LOG_ERR("The bus frequency is not initially configured.");  in i2c_it8xxx2_get_config()
302 		return -EIO;  in i2c_it8xxx2_get_config()
305 	switch (data->bus_freq) {  in i2c_it8xxx2_get_config()
310 		speed = I2C_SPEED_SET(data->bus_freq);  in i2c_it8xxx2_get_config()
313 		return -ERANGE;  in i2c_it8xxx2_get_config()
323 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_r_last_byte()
324 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_r_last_byte()
325 	uint8_t *base = config->base;  in i2c_r_last_byte()
331 	if ((data->active_msg->flags & I2C_MSG_STOP) &&  in i2c_r_last_byte()
332 	    (data->ridx == data->active_msg->len - 1)) {  in i2c_r_last_byte()
339 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_w2r_change_direction()
340 	uint8_t *base = config->base;  in i2c_w2r_change_direction()
362 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_fifo_en_w2r()
366 		if (config->port == SMB_CHANNEL_A) {  in i2c_fifo_en_w2r()
369 		} else if (config->port == SMB_CHANNEL_B) {  in i2c_fifo_en_w2r()
372 		} else if (config->port == SMB_CHANNEL_C) {  in i2c_fifo_en_w2r()
377 		if (config->port == SMB_CHANNEL_A) {  in i2c_fifo_en_w2r()
380 		} else if (config->port == SMB_CHANNEL_B) {  in i2c_fifo_en_w2r()
383 		} else if (config->port == SMB_CHANNEL_C) {  in i2c_fifo_en_w2r()
394 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_write_start()
395 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_write_start()
397 	uint8_t *base = config->base;  in i2c_tran_fifo_write_start()
398 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_tran_fifo_write_start()
401 	data->active_msg->flags &= ~I2C_MSG_START;  in i2c_tran_fifo_write_start()
409 	IT8XXX2_SMB_D0REG(base) = data->active_msg->len;  in i2c_tran_fifo_write_start()
414 	IT8XXX2_SMB_TRASLA(base) = (uint8_t)data->addr_16bit << 1;  in i2c_tran_fifo_write_start()
416 	data->bytecnt = MIN(data->active_msg->len, I2C_FIFO_MODE_MAX_SIZE);  in i2c_tran_fifo_write_start()
418 	for (i = 0; i < data->bytecnt; i++) {  in i2c_tran_fifo_write_start()
420 		IT8XXX2_SMB_HOBDB(base) = *(data->active_msg->buf++);  in i2c_tran_fifo_write_start()
423 	data->bytecnt = data->active_msg->len - data->bytecnt;  in i2c_tran_fifo_write_start()
436 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_write_next_block()
437 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_write_next_block()
439 	uint8_t *base = config->base;  in i2c_tran_fifo_write_next_block()
440 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_tran_fifo_write_next_block()
443 	_bytecnt = MIN(data->bytecnt, I2C_FIFO_MODE_MAX_SIZE);  in i2c_tran_fifo_write_next_block()
447 		IT8XXX2_SMB_HOBDB(base) = *(data->active_msg->buf++);  in i2c_tran_fifo_write_next_block()
452 	data->bytecnt -= _bytecnt;  in i2c_tran_fifo_write_next_block()
457 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_write_finish()
458 	uint8_t *base = config->base;  in i2c_tran_fifo_write_finish()
470 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_w2r_change_direction()
471 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_w2r_change_direction()
472 	uint8_t *base = config->base;  in i2c_tran_fifo_w2r_change_direction()
474 	if (++data->active_msg_index >= data->num_msgs) {  in i2c_tran_fifo_w2r_change_direction()
476 		data->err = EINVAL;  in i2c_tran_fifo_w2r_change_direction()
489 	data->active_msg = &data->msgs_list[data->active_msg_index];  in i2c_tran_fifo_w2r_change_direction()
491 	IT8XXX2_SMB_D0REG(base) = data->active_msg->len;  in i2c_tran_fifo_w2r_change_direction()
492 	data->bytecnt = data->active_msg->len;  in i2c_tran_fifo_w2r_change_direction()
494 	IT8XXX2_SMB_IWRFISTA = BIT(config->port);  in i2c_tran_fifo_w2r_change_direction()
501 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_read_start()
502 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_read_start()
503 	uint8_t *base = config->base;  in i2c_tran_fifo_read_start()
504 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_tran_fifo_read_start()
507 	data->active_msg->flags &= ~I2C_MSG_START;  in i2c_tran_fifo_read_start()
515 	IT8XXX2_SMB_D0REG(base) = data->active_msg->len;  in i2c_tran_fifo_read_start()
520 	IT8XXX2_SMB_TRASLA(base) = (uint8_t)(data->addr_16bit << 1) |  in i2c_tran_fifo_read_start()
523 	data->bytecnt = data->active_msg->len;  in i2c_tran_fifo_read_start()
536 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_read_next_block()
537 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_read_next_block()
539 	uint8_t *base = config->base;  in i2c_tran_fifo_read_next_block()
540 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_tran_fifo_read_next_block()
544 		*(data->active_msg->buf++) = IT8XXX2_SMB_HOBDB(base);  in i2c_tran_fifo_read_next_block()
549 	data->bytecnt -= I2C_FIFO_MODE_MAX_SIZE;  in i2c_tran_fifo_read_next_block()
554 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_read_finish()
555 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_read_finish()
557 	uint8_t *base = config->base;  in i2c_tran_fifo_read_finish()
559 	for (i = 0; i < data->bytecnt; i++) {  in i2c_tran_fifo_read_finish()
561 		*(data->active_msg->buf++) = IT8XXX2_SMB_HOBDB(base);  in i2c_tran_fifo_read_finish()
574 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_write_to_read()
575 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_write_to_read()
576 	uint8_t *base = config->base;  in i2c_tran_fifo_write_to_read()
577 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_tran_fifo_write_to_read()
580 	if (data->active_msg->flags & I2C_MSG_START) {  in i2c_tran_fifo_write_to_read()
592 		} else if (IT8XXX2_SMB_IWRFISTA & BIT(config->port)) {  in i2c_tran_fifo_write_to_read()
596 			 * returned the data->err.  in i2c_tran_fifo_write_to_read()
614 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_read()
615 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_read()
616 	uint8_t *base = config->base;  in i2c_tran_fifo_read()
617 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_tran_fifo_read()
619 	if (data->active_msg->flags & I2C_MSG_START) {  in i2c_tran_fifo_read()
640 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_fifo_write()
641 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_fifo_write()
642 	uint8_t *base = config->base;  in i2c_tran_fifo_write()
643 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_tran_fifo_write()
645 	if (data->active_msg->flags & I2C_MSG_START) {  in i2c_tran_fifo_write()
666 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_fifo_transaction()
667 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_fifo_transaction()
668 	uint8_t *base = config->base;  in i2c_fifo_transaction()
672 		data->err = (IT8XXX2_SMB_HOSTA(base) & HOSTA_ANY_ERROR);  in i2c_fifo_transaction()
674 		if (data->num_msgs == 2) {  in i2c_fifo_transaction()
676 		} else if (data->active_msg->flags & I2C_MSG_READ) {  in i2c_fifo_transaction()
693 	struct i2c_it8xxx2_data *data = dev->data;  in fifo_mode_allowed()
694 	const struct i2c_it8xxx2_config *config = dev->config;  in fifo_mode_allowed()
700 	if (data->i2ccs != I2C_CH_NORMAL) {  in fifo_mode_allowed()
707 	if (!config->fifo_enable) {  in fifo_mode_allowed()
717 	if (data->num_msgs == 1 && (msgs[0].flags & I2C_MSG_STOP) &&  in fifo_mode_allowed()
726 	if (data->num_msgs == 2) {  in fifo_mode_allowed()
753 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_read()
754 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_read()
755 	uint8_t *base = config->base;  in i2c_tran_read()
757 	if (data->active_msg->flags & I2C_MSG_START) {  in i2c_tran_read()
766 		IT8XXX2_SMB_TRASLA(base) = (uint8_t)(data->addr_16bit << 1) |  in i2c_tran_read()
769 		data->active_msg->flags &= ~I2C_MSG_START;  in i2c_tran_read()
777 		if ((data->active_msg->len == 1) &&  in i2c_tran_read()
778 		    (data->active_msg->flags & I2C_MSG_STOP)) {  in i2c_tran_read()
789 		if ((data->i2ccs == I2C_CH_REPEAT_START) ||  in i2c_tran_read()
790 		    (data->i2ccs == I2C_CH_WAIT_READ)) {  in i2c_tran_read()
791 			if (data->i2ccs == I2C_CH_REPEAT_START) {  in i2c_tran_read()
800 			data->i2ccs = I2C_CH_NORMAL;  in i2c_tran_read()
802 			if (data->ridx < data->active_msg->len) {  in i2c_tran_read()
804 				*(data->active_msg->buf++) = IT8XXX2_SMB_HOBDB(base);  in i2c_tran_read()
805 				data->ridx++;  in i2c_tran_read()
809 				if (data->ridx == data->active_msg->len) {  in i2c_tran_read()
810 					data->active_msg->len = 0;  in i2c_tran_read()
811 					if (data->active_msg->flags & I2C_MSG_STOP) {  in i2c_tran_read()
816 						data->stop = 1;  in i2c_tran_read()
818 						data->i2ccs = I2C_CH_WAIT_READ;  in i2c_tran_read()
835 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_tran_write()
836 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_tran_write()
837 	uint8_t *base = config->base;  in i2c_tran_write()
839 	if (data->active_msg->flags & I2C_MSG_START) {  in i2c_tran_write()
848 		IT8XXX2_SMB_TRASLA(base) = (uint8_t)data->addr_16bit << 1;  in i2c_tran_write()
850 		IT8XXX2_SMB_HOBDB(base) = *(data->active_msg->buf++);  in i2c_tran_write()
852 		data->widx++;  in i2c_tran_write()
854 		data->active_msg->flags &= ~I2C_MSG_START;  in i2c_tran_write()
866 			if (data->widx < data->active_msg->len) {  in i2c_tran_write()
868 				IT8XXX2_SMB_HOBDB(base) = *(data->active_msg->buf++);  in i2c_tran_write()
870 				data->widx++;  in i2c_tran_write()
874 				if (data->i2ccs == I2C_CH_REPEAT_START) {  in i2c_tran_write()
875 					data->i2ccs = I2C_CH_NORMAL;  in i2c_tran_write()
879 				data->active_msg->len = 0;  in i2c_tran_write()
880 				if (data->active_msg->flags & I2C_MSG_STOP) {  in i2c_tran_write()
887 					data->stop = 1;  in i2c_tran_write()
889 					data->i2ccs = I2C_CH_REPEAT_START;  in i2c_tran_write()
901 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_pio_transaction()
902 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_pio_transaction()
903 	uint8_t *base = config->base;  in i2c_pio_transaction()
907 		data->err = (IT8XXX2_SMB_HOSTA(base) & HOSTA_ANY_ERROR);  in i2c_pio_transaction()
909 		if (!data->stop) {  in i2c_pio_transaction()
916 			if (data->active_msg->flags & I2C_MSG_READ) {  in i2c_pio_transaction()
932 	data->stop = 0;  in i2c_pio_transaction()
940 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_it8xxx2_transfer()
941 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_it8xxx2_transfer()
945 	k_mutex_lock(&data->mutex, K_FOREVER);  in i2c_it8xxx2_transfer()
949 	 * exclude checking bus busy.  in i2c_it8xxx2_transfer()
951 	if (data->i2ccs == I2C_CH_NORMAL) {  in i2c_it8xxx2_transfer()
956 			/* Recovery I2C bus */  in i2c_it8xxx2_transfer()
959 			 * After resetting I2C bus, if I2C bus is not available  in i2c_it8xxx2_transfer()
960 			 * (No external pull-up), drop the transaction.  in i2c_it8xxx2_transfer()
964 				k_mutex_unlock(&data->mutex);  in i2c_it8xxx2_transfer()
965 				return -EIO;  in i2c_it8xxx2_transfer()
969 		start_msg->flags |= I2C_MSG_START;  in i2c_it8xxx2_transfer()
973 	data->num_msgs = num_msgs;  in i2c_it8xxx2_transfer()
975 	data->msgs_list = msgs;  in i2c_it8xxx2_transfer()
985 		data->widx = 0;  in i2c_it8xxx2_transfer()
986 		data->ridx = 0;  in i2c_it8xxx2_transfer()
987 		data->err = 0;  in i2c_it8xxx2_transfer()
988 		data->active_msg = &msgs[i];  in i2c_it8xxx2_transfer()
989 		data->addr_16bit = addr;  in i2c_it8xxx2_transfer()
992 		data->active_msg_index = 0;  in i2c_it8xxx2_transfer()
1001 				irq_enable(config->i2c_irq_base);  in i2c_it8xxx2_transfer()
1008 				irq_enable(config->i2c_irq_base);  in i2c_it8xxx2_transfer()
1012 		res = k_sem_take(&data->device_sync_sem, K_MSEC(config->transfer_timeout_ms));  in i2c_it8xxx2_transfer()
1019 		irq_disable(config->i2c_irq_base);  in i2c_it8xxx2_transfer()
1022 		 * bus error, device error).  in i2c_it8xxx2_transfer()
1024 		if (data->err) {  in i2c_it8xxx2_transfer()
1029 			data->err = ETIMEDOUT;  in i2c_it8xxx2_transfer()
1033 				config->port, data->addr_16bit, I2C_RC_TIMEOUT);  in i2c_it8xxx2_transfer()
1050 		volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_it8xxx2_transfer()
1055 		if (data->num_msgs == 2) {  in i2c_it8xxx2_transfer()
1063 	if (data->err || (data->active_msg->flags & I2C_MSG_STOP)) {  in i2c_it8xxx2_transfer()
1064 		data->i2ccs = I2C_CH_NORMAL;  in i2c_it8xxx2_transfer()
1069 	k_mutex_unlock(&data->mutex);  in i2c_it8xxx2_transfer()
1076 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_it8xxx2_isr()
1077 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_it8xxx2_isr()
1080 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_it8xxx2_isr()
1083 	if (config->fifo_enable && (*reg_mstfctrl & IT8XXX2_SMB_FFEN)) {  in i2c_it8xxx2_isr()
1094 	irq_disable(config->i2c_irq_base);  in i2c_it8xxx2_isr()
1095 	k_sem_give(&data->device_sync_sem);  in i2c_it8xxx2_isr()
1100 	struct i2c_it8xxx2_data *data = dev->data;  in i2c_it8xxx2_init()
1101 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_it8xxx2_init()
1102 	uint8_t *base = config->base;  in i2c_it8xxx2_init()
1107 	k_mutex_init(&data->mutex);  in i2c_it8xxx2_init()
1108 	k_sem_init(&data->device_sync_sem, 0, K_SEM_MAX_LIMIT);  in i2c_it8xxx2_init()
1112 		(IT8XXX2_ECPM_BASE + (config->clock_gate_offset >> 8));  in i2c_it8xxx2_init()
1113 	uint8_t reg_mask = config->clock_gate_offset & 0xff;  in i2c_it8xxx2_init()
1120 	 *		  and support I2C-compatible cycles.  in i2c_it8xxx2_init()
1138 	volatile uint8_t *reg_mstfctrl = config->reg_mstfctrl;  in i2c_it8xxx2_init()
1140 	if (config->port == SMB_CHANNEL_B && config->fifo_enable) {  in i2c_it8xxx2_init()
1143 	} else if (config->port == SMB_CHANNEL_C && config->fifo_enable) {  in i2c_it8xxx2_init()
1149 	/* ChannelA-C switch selection of I2C pin */  in i2c_it8xxx2_init()
1150 	if (config->port == SMB_CHANNEL_A) {  in i2c_it8xxx2_init()
1152 			config->channel_switch_sel;  in i2c_it8xxx2_init()
1153 	} else if (config->port == SMB_CHANNEL_B) {  in i2c_it8xxx2_init()
1154 		IT8XXX2_SMB_SMB01CHS = (config->channel_switch_sel << 4) |  in i2c_it8xxx2_init()
1156 	} else if (config->port == SMB_CHANNEL_C) {  in i2c_it8xxx2_init()
1158 			config->channel_switch_sel;  in i2c_it8xxx2_init()
1162 	if (config->bitrate == I2C_BITRATE_STANDARD ||  in i2c_it8xxx2_init()
1163 		config->bitrate == I2C_BITRATE_FAST ||  in i2c_it8xxx2_init()
1164 		config->bitrate == I2C_BITRATE_FAST_PLUS) {  in i2c_it8xxx2_init()
1165 		bitrate_cfg = i2c_map_dt_bitrate(config->bitrate);  in i2c_it8xxx2_init()
1172 	data->i2ccs = I2C_CH_NORMAL;  in i2c_it8xxx2_init()
1180 	status = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in i2c_it8xxx2_init()
1191 	const struct i2c_it8xxx2_config *config = dev->config;  in i2c_it8xxx2_recover_bus()
1195 	gpio_flags_t flags = GPIO_OUTPUT | (config->push_pull_recovery ? 0 : GPIO_OPEN_DRAIN);  in i2c_it8xxx2_recover_bus()
1197 	gpio_pin_configure_dt(&config->scl_gpios, flags);  in i2c_it8xxx2_recover_bus()
1199 	gpio_pin_configure_dt(&config->sda_gpios, flags);  in i2c_it8xxx2_recover_bus()
1202 	 * In I2C recovery bus, 1ms sleep interval for bitbanging i2c  in i2c_it8xxx2_recover_bus()
1207 	gpio_pin_set_dt(&config->scl_gpios, 1);  in i2c_it8xxx2_recover_bus()
1208 	gpio_pin_set_dt(&config->sda_gpios, 1);  in i2c_it8xxx2_recover_bus()
1212 	gpio_pin_set_dt(&config->sda_gpios, 0);  in i2c_it8xxx2_recover_bus()
1214 	gpio_pin_set_dt(&config->scl_gpios, 0);  in i2c_it8xxx2_recover_bus()
1220 		gpio_pin_set_dt(&config->sda_gpios, 1);  in i2c_it8xxx2_recover_bus()
1222 		gpio_pin_set_dt(&config->scl_gpios, 1);  in i2c_it8xxx2_recover_bus()
1225 		gpio_pin_set_dt(&config->scl_gpios, 0);  in i2c_it8xxx2_recover_bus()
1229 	gpio_pin_set_dt(&config->sda_gpios, 0);  in i2c_it8xxx2_recover_bus()
1233 	gpio_pin_set_dt(&config->scl_gpios, 1);  in i2c_it8xxx2_recover_bus()
1235 	gpio_pin_set_dt(&config->sda_gpios, 1);  in i2c_it8xxx2_recover_bus()
1239 	status = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in i2c_it8xxx2_recover_bus()
1247 	LOG_ERR("I2C ch%d reset cause %d", config->port,  in i2c_it8xxx2_recover_bus()