393 	int retval;  in uart_sam0_configure()  local
479 	retval = uart_sam0_set_baudrate(usart, new_cfg->baudrate,  in uart_sam0_configure()
481 	if (retval != 0) {  in uart_sam0_configure()
482 		return retval;  in uart_sam0_configure()
507 	int retval;  in uart_sam0_init()  local
547 	retval = pinctrl_apply_state(cfg->pcfg, PINCTRL_STATE_DEFAULT);  in uart_sam0_init()
548 	if (retval < 0) {  in uart_sam0_init()
549 		return retval;  in uart_sam0_init()
562 	retval = uart_sam0_set_baudrate(usart, cfg->baudrate,  in uart_sam0_init()
564 	if (retval != 0) {  in uart_sam0_init()
565 		return retval;  in uart_sam0_init()
600 		retval = dma_config(cfg->dma_dev, cfg->tx_dma_channel,  in uart_sam0_init()
602 		if (retval != 0) {  in uart_sam0_init()
603 			return retval;  in uart_sam0_init()
624 		retval = dma_config(cfg->dma_dev, cfg->rx_dma_channel,  in uart_sam0_init()
626 		if (retval != 0) {  in uart_sam0_init()
627 			return retval;  in uart_sam0_init()
973 	int retval;  in uart_sam0_tx()  local
986 		retval = -EBUSY;  in uart_sam0_tx()
995 	retval = dma_reload(cfg->dma_dev, cfg->tx_dma_channel, (uint32_t)buf,  in uart_sam0_tx()
997 	if (retval != 0U) {  in uart_sam0_tx()
998 		return retval;  in uart_sam0_tx()
1009 	return retval;  in uart_sam0_tx()
1033 	int retval;  in uart_sam0_rx_enable()  local
1046 		retval = -EBUSY;  in uart_sam0_rx_enable()
1057 	retval = dma_reload(cfg->dma_dev, cfg->rx_dma_channel,  in uart_sam0_rx_enable()
1060 	if (retval != 0) {  in uart_sam0_rx_enable()
1061 		return retval;  in uart_sam0_rx_enable()
1079 	return retval;  in uart_sam0_rx_enable()
1091 	int retval = 0;  in uart_sam0_rx_buf_rsp()  local
1094 		retval = -EACCES;  in uart_sam0_rx_buf_rsp()
1099 		retval = -EBUSY;  in uart_sam0_rx_buf_rsp()
1111 	return retval;  in uart_sam0_rx_buf_rsp()