67 static void ifx_spi_handle_srdy(struct ifx_spi_device *ifx_dev);
70 static int ifx_modem_power_off(struct ifx_spi_device *ifx_dev);
82 static int ifx_modem_power_off(struct ifx_spi_device *ifx_dev)  in ifx_modem_power_off()  argument
131 ifx_spi_power_state_set(struct ifx_spi_device *ifx_dev, unsigned char val)  in ifx_spi_power_state_set()  argument
135 	spin_lock_irqsave(&ifx_dev->power_lock, flags);  in ifx_spi_power_state_set()
141 	if (!ifx_dev->power_status)  in ifx_spi_power_state_set()
142 		pm_runtime_get(&ifx_dev->spi_dev->dev);  in ifx_spi_power_state_set()
143 	ifx_dev->power_status |= val;  in ifx_spi_power_state_set()
145 	spin_unlock_irqrestore(&ifx_dev->power_lock, flags);  in ifx_spi_power_state_set()
156 ifx_spi_power_state_clear(struct ifx_spi_device *ifx_dev, unsigned char val)  in ifx_spi_power_state_clear()  argument
160 	spin_lock_irqsave(&ifx_dev->power_lock, flags);  in ifx_spi_power_state_clear()
162 	if (ifx_dev->power_status) {  in ifx_spi_power_state_clear()
163 		ifx_dev->power_status &= ~val;  in ifx_spi_power_state_clear()
164 		if (!ifx_dev->power_status)  in ifx_spi_power_state_clear()
165 			pm_runtime_put(&ifx_dev->spi_dev->dev);  in ifx_spi_power_state_clear()
168 	spin_unlock_irqrestore(&ifx_dev->power_lock, flags);  in ifx_spi_power_state_clear()
245 static void mrdy_assert(struct ifx_spi_device *ifx_dev)  in mrdy_assert()  argument
247 	int val = gpio_get_value(ifx_dev->gpio.srdy);  in mrdy_assert()
250 				      &ifx_dev->flags)) {  in mrdy_assert()
251 			mod_timer(&ifx_dev->spi_timer,jiffies + IFX_SPI_TIMEOUT_SEC*HZ);  in mrdy_assert()
255 	ifx_spi_power_state_set(ifx_dev, IFX_SPI_POWER_DATA_PENDING);  in mrdy_assert()
256 	mrdy_set_high(ifx_dev);  in mrdy_assert()
268 	struct ifx_spi_device *ifx_dev = from_timer(ifx_dev, t, spi_timer);  in ifx_spi_timeout()  local
270 	dev_warn(&ifx_dev->spi_dev->dev, "*** SPI Timeout ***");  in ifx_spi_timeout()
271 	tty_port_tty_hangup(&ifx_dev->tty_port, false);  in ifx_spi_timeout()
272 	mrdy_set_low(ifx_dev);  in ifx_spi_timeout()
273 	clear_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags);  in ifx_spi_timeout()
289 	struct ifx_spi_device *ifx_dev = tty->driver_data;  in ifx_spi_tiocmget()  local
292 	(test_bit(IFX_SPI_RTS, &ifx_dev->signal_state) ? TIOCM_RTS : 0) |  in ifx_spi_tiocmget()
293 	(test_bit(IFX_SPI_DTR, &ifx_dev->signal_state) ? TIOCM_DTR : 0) |  in ifx_spi_tiocmget()
294 	(test_bit(IFX_SPI_CTS, &ifx_dev->signal_state) ? TIOCM_CTS : 0) |  in ifx_spi_tiocmget()
295 	(test_bit(IFX_SPI_DSR, &ifx_dev->signal_state) ? TIOCM_DSR : 0) |  in ifx_spi_tiocmget()
296 	(test_bit(IFX_SPI_DCD, &ifx_dev->signal_state) ? TIOCM_CAR : 0) |  in ifx_spi_tiocmget()
297 	(test_bit(IFX_SPI_RI, &ifx_dev->signal_state) ? TIOCM_RNG : 0);  in ifx_spi_tiocmget()
315 	struct ifx_spi_device *ifx_dev = tty->driver_data;  in ifx_spi_tiocmset()  local
318 		set_bit(IFX_SPI_RTS, &ifx_dev->signal_state);  in ifx_spi_tiocmset()
320 		set_bit(IFX_SPI_DTR, &ifx_dev->signal_state);  in ifx_spi_tiocmset()
322 		clear_bit(IFX_SPI_RTS, &ifx_dev->signal_state);  in ifx_spi_tiocmset()
324 		clear_bit(IFX_SPI_DTR, &ifx_dev->signal_state);  in ifx_spi_tiocmset()
326 	set_bit(IFX_SPI_UPDATE, &ifx_dev->signal_state);  in ifx_spi_tiocmset()
355 	struct ifx_spi_device *ifx_dev = tty->driver_data;  in ifx_spi_close()  local
356 	tty_port_close(&ifx_dev->tty_port, tty, filp);  in ifx_spi_close()
429 static int ifx_spi_prepare_tx_buffer(struct ifx_spi_device *ifx_dev)  in ifx_spi_prepare_tx_buffer()  argument
436 	tx_buffer = ifx_dev->tx_buffer;  in ifx_spi_prepare_tx_buffer()
444 	ifx_dev->spi_more = 0;  in ifx_spi_prepare_tx_buffer()
447 	if (!ifx_dev->spi_slave_cts) {  in ifx_spi_prepare_tx_buffer()
449 		queue_length = kfifo_len(&ifx_dev->tx_fifo);  in ifx_spi_prepare_tx_buffer()
453 			temp_count = kfifo_out_locked(&ifx_dev->tx_fifo,  in ifx_spi_prepare_tx_buffer()
455 					&ifx_dev->fifo_lock);  in ifx_spi_prepare_tx_buffer()
462 				tty_port_tty_wakeup(&ifx_dev->tty_port);  in ifx_spi_prepare_tx_buffer()
464 				ifx_dev->spi_more = 1;  in ifx_spi_prepare_tx_buffer()
469 	ifx_spi_setup_spi_header(ifx_dev->tx_buffer,  in ifx_spi_prepare_tx_buffer()
471 					ifx_dev->spi_more);  in ifx_spi_prepare_tx_buffer()
473 	ifx_dev->swap_buf((ifx_dev->tx_buffer), tx_count,  in ifx_spi_prepare_tx_buffer()
474 		&ifx_dev->tx_buffer[IFX_SPI_TRANSFER_SIZE]);  in ifx_spi_prepare_tx_buffer()
491 	struct ifx_spi_device *ifx_dev = tty->driver_data;  in ifx_spi_write()  local
497 	spin_lock_irqsave(&ifx_dev->fifo_lock, flags);  in ifx_spi_write()
498 	is_fifo_empty = kfifo_is_empty(&ifx_dev->tx_fifo);  in ifx_spi_write()
499 	tx_count = kfifo_in(&ifx_dev->tx_fifo, tmp_buf, count);  in ifx_spi_write()
500 	spin_unlock_irqrestore(&ifx_dev->fifo_lock, flags);  in ifx_spi_write()
502 		mrdy_assert(ifx_dev);  in ifx_spi_write()
516 	struct ifx_spi_device *ifx_dev = tty->driver_data;  in ifx_spi_write_room()  local
517 	return IFX_SPI_FIFO_SIZE - kfifo_len(&ifx_dev->tx_fifo);  in ifx_spi_write_room()
529 	struct ifx_spi_device *ifx_dev = tty->driver_data;  in ifx_spi_chars_in_buffer()  local
530 	return kfifo_len(&ifx_dev->tx_fifo);  in ifx_spi_chars_in_buffer()
543 	struct ifx_spi_device *ifx_dev = tty->driver_data;  in ifx_spi_hangup()  local
544 	tty_port_hangup(&ifx_dev->tty_port);  in ifx_spi_hangup()
556 	struct ifx_spi_device *ifx_dev =  in ifx_port_activate()  local
560 	kfifo_reset(&ifx_dev->tx_fifo);  in ifx_port_activate()
563 	clear_bit(IFX_SPI_STATE_IO_IN_PROGRESS, &ifx_dev->flags);  in ifx_port_activate()
564 	clear_bit(IFX_SPI_STATE_IO_READY, &ifx_dev->flags);  in ifx_port_activate()
567 	tty->driver_data = ifx_dev;  in ifx_port_activate()
573 	set_bit(IFX_SPI_STATE_IO_AVAILABLE, &ifx_dev->flags);  in ifx_port_activate()
587 	struct ifx_spi_device *ifx_dev =  in ifx_port_shutdown()  local
590 	clear_bit(IFX_SPI_STATE_IO_AVAILABLE, &ifx_dev->flags);  in ifx_port_shutdown()
591 	mrdy_set_low(ifx_dev);  in ifx_port_shutdown()
592 	del_timer(&ifx_dev->spi_timer);  in ifx_port_shutdown()
593 	clear_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags);  in ifx_port_shutdown()
594 	tasklet_kill(&ifx_dev->io_work_tasklet);  in ifx_port_shutdown()
622 static void ifx_spi_insert_flip_string(struct ifx_spi_device *ifx_dev,  in ifx_spi_insert_flip_string()  argument
625 	tty_insert_flip_string(&ifx_dev->tty_port, chars, size);  in ifx_spi_insert_flip_string()
626 	tty_flip_buffer_push(&ifx_dev->tty_port);  in ifx_spi_insert_flip_string()
638 	struct ifx_spi_device *ifx_dev = ctx;  in ifx_spi_complete()  local
648 	mrdy_set_low(ifx_dev);  in ifx_spi_complete()
650 	if (!ifx_dev->spi_msg.status) {  in ifx_spi_complete()
652 		ifx_dev->swap_buf(ifx_dev->rx_buffer, IFX_SPI_HEADER_OVERHEAD,  in ifx_spi_complete()
653 			&ifx_dev->rx_buffer[IFX_SPI_HEADER_OVERHEAD]);  in ifx_spi_complete()
654 		decode_result = ifx_spi_decode_spi_header(ifx_dev->rx_buffer,  in ifx_spi_complete()
657 			dev_dbg(&ifx_dev->spi_dev->dev,  in ifx_spi_complete()
659 			ifx_dev->spi_slave_cts = 0;  in ifx_spi_complete()
662 			dev_dbg(&ifx_dev->spi_dev->dev,  in ifx_spi_complete()
667 		ifx_dev->spi_slave_cts = cts;  in ifx_spi_complete()
670 					ifx_dev->spi_msg.actual_length);  in ifx_spi_complete()
671 		ifx_dev->swap_buf(  in ifx_spi_complete()
672 			(ifx_dev->rx_buffer + IFX_SPI_HEADER_OVERHEAD),  in ifx_spi_complete()
674 			 &ifx_dev->rx_buffer[IFX_SPI_TRANSFER_SIZE]);  in ifx_spi_complete()
676 			ifx_dev,  in ifx_spi_complete()
677 			ifx_dev->rx_buffer + IFX_SPI_HEADER_OVERHEAD,  in ifx_spi_complete()
681 		dev_dbg(&ifx_dev->spi_dev->dev, "SPI transfer error %d",  in ifx_spi_complete()
682 		       ifx_dev->spi_msg.status);  in ifx_spi_complete()
686 	if (ifx_dev->write_pending) {  in ifx_spi_complete()
687 		ifx_dev->write_pending = 0;  in ifx_spi_complete()
691 	clear_bit(IFX_SPI_STATE_IO_IN_PROGRESS, &(ifx_dev->flags));  in ifx_spi_complete()
693 	queue_length = kfifo_len(&ifx_dev->tx_fifo);  in ifx_spi_complete()
694 	srdy = gpio_get_value(ifx_dev->gpio.srdy);  in ifx_spi_complete()
696 		ifx_spi_power_state_clear(ifx_dev, IFX_SPI_POWER_SRDY);  in ifx_spi_complete()
699 	if (test_and_clear_bit(IFX_SPI_STATE_IO_READY, &ifx_dev->flags))  in ifx_spi_complete()
700 		tasklet_schedule(&ifx_dev->io_work_tasklet);  in ifx_spi_complete()
702 		if (more || ifx_dev->spi_more || queue_length > 0 ||  in ifx_spi_complete()
704 			if (ifx_dev->spi_slave_cts) {  in ifx_spi_complete()
706 					mrdy_assert(ifx_dev);  in ifx_spi_complete()
708 				mrdy_assert(ifx_dev);  in ifx_spi_complete()
715 			ifx_spi_power_state_clear(ifx_dev,  in ifx_spi_complete()
717 			tty_port_tty_wakeup(&ifx_dev->tty_port);  in ifx_spi_complete()
732 	struct ifx_spi_device *ifx_dev = (struct ifx_spi_device *) data;  in ifx_spi_io()  local
734 	if (!test_and_set_bit(IFX_SPI_STATE_IO_IN_PROGRESS, &ifx_dev->flags) &&  in ifx_spi_io()
735 		test_bit(IFX_SPI_STATE_IO_AVAILABLE, &ifx_dev->flags)) {  in ifx_spi_io()
736 		if (ifx_dev->gpio.unack_srdy_int_nb > 0)  in ifx_spi_io()
737 			ifx_dev->gpio.unack_srdy_int_nb--;  in ifx_spi_io()
739 		ifx_spi_prepare_tx_buffer(ifx_dev);  in ifx_spi_io()
741 		spi_message_init(&ifx_dev->spi_msg);  in ifx_spi_io()
742 		INIT_LIST_HEAD(&ifx_dev->spi_msg.queue);  in ifx_spi_io()
744 		ifx_dev->spi_msg.context = ifx_dev;  in ifx_spi_io()
745 		ifx_dev->spi_msg.complete = ifx_spi_complete;  in ifx_spi_io()
749 		ifx_dev->spi_xfer.len = IFX_SPI_TRANSFER_SIZE;  in ifx_spi_io()
750 		ifx_dev->spi_xfer.cs_change = 0;  in ifx_spi_io()
751 		ifx_dev->spi_xfer.speed_hz = ifx_dev->spi_dev->max_speed_hz;  in ifx_spi_io()
753 		ifx_dev->spi_xfer.bits_per_word =  in ifx_spi_io()
754 			ifx_dev->spi_dev->bits_per_word;  in ifx_spi_io()
756 		ifx_dev->spi_xfer.tx_buf = ifx_dev->tx_buffer;  in ifx_spi_io()
757 		ifx_dev->spi_xfer.rx_buf = ifx_dev->rx_buffer;  in ifx_spi_io()
762 		if (ifx_dev->use_dma) {  in ifx_spi_io()
763 			ifx_dev->spi_msg.is_dma_mapped = 1;  in ifx_spi_io()
764 			ifx_dev->tx_dma = ifx_dev->tx_bus;  in ifx_spi_io()
765 			ifx_dev->rx_dma = ifx_dev->rx_bus;  in ifx_spi_io()
766 			ifx_dev->spi_xfer.tx_dma = ifx_dev->tx_dma;  in ifx_spi_io()
767 			ifx_dev->spi_xfer.rx_dma = ifx_dev->rx_dma;  in ifx_spi_io()
769 			ifx_dev->spi_msg.is_dma_mapped = 0;  in ifx_spi_io()
770 			ifx_dev->tx_dma = (dma_addr_t)0;  in ifx_spi_io()
771 			ifx_dev->rx_dma = (dma_addr_t)0;  in ifx_spi_io()
772 			ifx_dev->spi_xfer.tx_dma = (dma_addr_t)0;  in ifx_spi_io()
773 			ifx_dev->spi_xfer.rx_dma = (dma_addr_t)0;  in ifx_spi_io()
776 		spi_message_add_tail(&ifx_dev->spi_xfer, &ifx_dev->spi_msg);  in ifx_spi_io()
781 		mrdy_assert(ifx_dev);  in ifx_spi_io()
783 		retval = spi_async(ifx_dev->spi_dev, &ifx_dev->spi_msg);  in ifx_spi_io()
786 				  &ifx_dev->flags);  in ifx_spi_io()
787 			tasklet_schedule(&ifx_dev->io_work_tasklet);  in ifx_spi_io()
791 		ifx_dev->write_pending = 1;  in ifx_spi_io()
800 static void ifx_spi_free_port(struct ifx_spi_device *ifx_dev)  in ifx_spi_free_port()  argument
802 	if (ifx_dev->tty_dev)  in ifx_spi_free_port()
803 		tty_unregister_device(tty_drv, ifx_dev->minor);  in ifx_spi_free_port()
804 	tty_port_destroy(&ifx_dev->tty_port);  in ifx_spi_free_port()
805 	kfifo_free(&ifx_dev->tx_fifo);  in ifx_spi_free_port()
815 static int ifx_spi_create_port(struct ifx_spi_device *ifx_dev)  in ifx_spi_create_port()  argument
818 	struct tty_port *pport = &ifx_dev->tty_port;  in ifx_spi_create_port()
820 	spin_lock_init(&ifx_dev->fifo_lock);  in ifx_spi_create_port()
821 	lockdep_set_class_and_subclass(&ifx_dev->fifo_lock,  in ifx_spi_create_port()
824 	if (kfifo_alloc(&ifx_dev->tx_fifo, IFX_SPI_FIFO_SIZE, GFP_KERNEL)) {  in ifx_spi_create_port()
831 	ifx_dev->minor = IFX_SPI_TTY_ID;  in ifx_spi_create_port()
832 	ifx_dev->tty_dev = tty_port_register_device(pport, tty_drv,  in ifx_spi_create_port()
833 			ifx_dev->minor, &ifx_dev->spi_dev->dev);  in ifx_spi_create_port()
834 	if (IS_ERR(ifx_dev->tty_dev)) {  in ifx_spi_create_port()
835 		dev_dbg(&ifx_dev->spi_dev->dev,  in ifx_spi_create_port()
837 		ret = PTR_ERR(ifx_dev->tty_dev);  in ifx_spi_create_port()
845 	ifx_spi_free_port(ifx_dev);  in ifx_spi_create_port()
857 static void ifx_spi_handle_srdy(struct ifx_spi_device *ifx_dev)  in ifx_spi_handle_srdy()  argument
859 	if (test_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags)) {  in ifx_spi_handle_srdy()
860 		del_timer(&ifx_dev->spi_timer);  in ifx_spi_handle_srdy()
861 		clear_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags);  in ifx_spi_handle_srdy()
864 	ifx_spi_power_state_set(ifx_dev, IFX_SPI_POWER_SRDY);  in ifx_spi_handle_srdy()
866 	if (!test_bit(IFX_SPI_STATE_IO_IN_PROGRESS, &ifx_dev->flags))  in ifx_spi_handle_srdy()
867 		tasklet_schedule(&ifx_dev->io_work_tasklet);  in ifx_spi_handle_srdy()
869 		set_bit(IFX_SPI_STATE_IO_READY, &ifx_dev->flags);  in ifx_spi_handle_srdy()
881 	struct ifx_spi_device *ifx_dev = dev;  in ifx_spi_srdy_interrupt()  local
882 	ifx_dev->gpio.unack_srdy_int_nb++;  in ifx_spi_srdy_interrupt()
883 	ifx_spi_handle_srdy(ifx_dev);  in ifx_spi_srdy_interrupt()
900 	struct ifx_spi_device *ifx_dev = dev;  in ifx_spi_reset_interrupt()  local
901 	int val = gpio_get_value(ifx_dev->gpio.reset_out);  in ifx_spi_reset_interrupt()
902 	int solreset = test_bit(MR_START, &ifx_dev->mdm_reset_state);  in ifx_spi_reset_interrupt()
906 		set_bit(MR_INPROGRESS, &ifx_dev->mdm_reset_state);  in ifx_spi_reset_interrupt()
909 			tty_port_tty_hangup(&ifx_dev->tty_port, false);  in ifx_spi_reset_interrupt()
913 		clear_bit(MR_INPROGRESS, &ifx_dev->mdm_reset_state);  in ifx_spi_reset_interrupt()
915 			set_bit(MR_COMPLETE, &ifx_dev->mdm_reset_state);  in ifx_spi_reset_interrupt()
916 			wake_up(&ifx_dev->mdm_reset_wait);  in ifx_spi_reset_interrupt()
928 static void ifx_spi_free_device(struct ifx_spi_device *ifx_dev)  in ifx_spi_free_device()  argument
930 	ifx_spi_free_port(ifx_dev);  in ifx_spi_free_device()
931 	dma_free_coherent(&ifx_dev->spi_dev->dev,  in ifx_spi_free_device()
933 				ifx_dev->tx_buffer,  in ifx_spi_free_device()
934 				ifx_dev->tx_bus);  in ifx_spi_free_device()
935 	dma_free_coherent(&ifx_dev->spi_dev->dev,  in ifx_spi_free_device()
937 				ifx_dev->rx_buffer,  in ifx_spi_free_device()
938 				ifx_dev->rx_bus);  in ifx_spi_free_device()
947 static int ifx_spi_reset(struct ifx_spi_device *ifx_dev)  in ifx_spi_reset()  argument
956 	set_bit(MR_START, &ifx_dev->mdm_reset_state);  in ifx_spi_reset()
957 	gpio_set_value(ifx_dev->gpio.po, 0);  in ifx_spi_reset()
958 	gpio_set_value(ifx_dev->gpio.reset, 0);  in ifx_spi_reset()
960 	gpio_set_value(ifx_dev->gpio.reset, 1);  in ifx_spi_reset()
962 	gpio_set_value(ifx_dev->gpio.po, 1);  in ifx_spi_reset()
964 	gpio_set_value(ifx_dev->gpio.po, 0);  in ifx_spi_reset()
965 	ret = wait_event_timeout(ifx_dev->mdm_reset_wait,  in ifx_spi_reset()
967 					  &ifx_dev->mdm_reset_state),  in ifx_spi_reset()
970 		dev_warn(&ifx_dev->spi_dev->dev, "Modem reset timeout: (state:%lx)",  in ifx_spi_reset()
971 			 ifx_dev->mdm_reset_state);  in ifx_spi_reset()
973 	ifx_dev->mdm_reset_state = 0;  in ifx_spi_reset()
994 	struct ifx_spi_device *ifx_dev;  in ifx_spi_spi_probe()  local
1008 	ifx_dev = kzalloc(sizeof(struct ifx_spi_device), GFP_KERNEL);  in ifx_spi_spi_probe()
1009 	if (!ifx_dev) {  in ifx_spi_spi_probe()
1013 	saved_ifx_dev = ifx_dev;  in ifx_spi_spi_probe()
1014 	ifx_dev->spi_dev = spi;  in ifx_spi_spi_probe()
1015 	clear_bit(IFX_SPI_STATE_IO_IN_PROGRESS, &ifx_dev->flags);  in ifx_spi_spi_probe()
1016 	spin_lock_init(&ifx_dev->write_lock);  in ifx_spi_spi_probe()
1017 	spin_lock_init(&ifx_dev->power_lock);  in ifx_spi_spi_probe()
1018 	ifx_dev->power_status = 0;  in ifx_spi_spi_probe()
1019 	timer_setup(&ifx_dev->spi_timer, ifx_spi_timeout, 0);  in ifx_spi_spi_probe()
1020 	ifx_dev->modem = pl_data->modem_type;  in ifx_spi_spi_probe()
1021 	ifx_dev->use_dma = pl_data->use_dma;  in ifx_spi_spi_probe()
1022 	ifx_dev->max_hz = pl_data->max_hz;  in ifx_spi_spi_probe()
1024 	spi->max_speed_hz = ifx_dev->max_hz;  in ifx_spi_spi_probe()
1030 		kfree(ifx_dev);  in ifx_spi_spi_probe()
1036 		ifx_dev->swap_buf = swap_buf_32;  in ifx_spi_spi_probe()
1038 		ifx_dev->swap_buf = swap_buf_16;  in ifx_spi_spi_probe()
1040 		ifx_dev->swap_buf = swap_buf_8;  in ifx_spi_spi_probe()
1043 	ifx_dev->spi_more = 0;  in ifx_spi_spi_probe()
1044 	ifx_dev->spi_slave_cts = 0;  in ifx_spi_spi_probe()
1047 	ifx_dev->tx_buffer = dma_alloc_coherent(ifx_dev->spi_dev->dev.parent,  in ifx_spi_spi_probe()
1049 				&ifx_dev->tx_bus,  in ifx_spi_spi_probe()
1051 	if (!ifx_dev->tx_buffer) {  in ifx_spi_spi_probe()
1056 	ifx_dev->rx_buffer = dma_alloc_coherent(ifx_dev->spi_dev->dev.parent,  in ifx_spi_spi_probe()
1058 				&ifx_dev->rx_bus,  in ifx_spi_spi_probe()
1060 	if (!ifx_dev->rx_buffer) {  in ifx_spi_spi_probe()
1067 	init_waitqueue_head(&ifx_dev->mdm_reset_wait);  in ifx_spi_spi_probe()
1069 	spi_set_drvdata(spi, ifx_dev);  in ifx_spi_spi_probe()
1070 	tasklet_init(&ifx_dev->io_work_tasklet, ifx_spi_io,  in ifx_spi_spi_probe()
1071 						(unsigned long)ifx_dev);  in ifx_spi_spi_probe()
1073 	set_bit(IFX_SPI_STATE_PRESENT, &ifx_dev->flags);  in ifx_spi_spi_probe()
1076 	ret = ifx_spi_create_port(ifx_dev);  in ifx_spi_spi_probe()
1082 	ifx_dev->gpio.reset = pl_data->rst_pmu;  in ifx_spi_spi_probe()
1083 	ifx_dev->gpio.po = pl_data->pwr_on;  in ifx_spi_spi_probe()
1084 	ifx_dev->gpio.mrdy = pl_data->mrdy;  in ifx_spi_spi_probe()
1085 	ifx_dev->gpio.srdy = pl_data->srdy;  in ifx_spi_spi_probe()
1086 	ifx_dev->gpio.reset_out = pl_data->rst_out;  in ifx_spi_spi_probe()
1089 		 ifx_dev->gpio.reset, ifx_dev->gpio.po, ifx_dev->gpio.mrdy,  in ifx_spi_spi_probe()
1090 		 ifx_dev->gpio.srdy, ifx_dev->gpio.reset_out);  in ifx_spi_spi_probe()
1093 	ret = gpio_request(ifx_dev->gpio.reset, "ifxModem");  in ifx_spi_spi_probe()
1096 			ifx_dev->gpio.reset);  in ifx_spi_spi_probe()
1099 	ret += gpio_direction_output(ifx_dev->gpio.reset, 0);  in ifx_spi_spi_probe()
1100 	ret += gpio_export(ifx_dev->gpio.reset, 1);  in ifx_spi_spi_probe()
1103 			ifx_dev->gpio.reset);  in ifx_spi_spi_probe()
1108 	ret = gpio_request(ifx_dev->gpio.po, "ifxModem");  in ifx_spi_spi_probe()
1109 	ret += gpio_direction_output(ifx_dev->gpio.po, 0);  in ifx_spi_spi_probe()
1110 	ret += gpio_export(ifx_dev->gpio.po, 1);  in ifx_spi_spi_probe()
1113 			ifx_dev->gpio.po);  in ifx_spi_spi_probe()
1118 	ret = gpio_request(ifx_dev->gpio.mrdy, "ifxModem");  in ifx_spi_spi_probe()
1121 			ifx_dev->gpio.mrdy);  in ifx_spi_spi_probe()
1124 	ret += gpio_export(ifx_dev->gpio.mrdy, 1);  in ifx_spi_spi_probe()
1125 	ret += gpio_direction_output(ifx_dev->gpio.mrdy, 0);  in ifx_spi_spi_probe()
1128 			ifx_dev->gpio.mrdy);  in ifx_spi_spi_probe()
1133 	ret = gpio_request(ifx_dev->gpio.srdy, "ifxModem");  in ifx_spi_spi_probe()
1136 			ifx_dev->gpio.srdy);  in ifx_spi_spi_probe()
1140 	ret += gpio_export(ifx_dev->gpio.srdy, 1);  in ifx_spi_spi_probe()
1141 	ret += gpio_direction_input(ifx_dev->gpio.srdy);  in ifx_spi_spi_probe()
1144 			ifx_dev->gpio.srdy);  in ifx_spi_spi_probe()
1149 	ret = gpio_request(ifx_dev->gpio.reset_out, "ifxModem");  in ifx_spi_spi_probe()
1152 			ifx_dev->gpio.reset_out);  in ifx_spi_spi_probe()
1155 	ret += gpio_export(ifx_dev->gpio.reset_out, 1);  in ifx_spi_spi_probe()
1156 	ret += gpio_direction_input(ifx_dev->gpio.reset_out);  in ifx_spi_spi_probe()
1159 			ifx_dev->gpio.reset_out);  in ifx_spi_spi_probe()
1164 	ret = request_irq(gpio_to_irq(ifx_dev->gpio.reset_out),  in ifx_spi_spi_probe()
1167 			  ifx_dev);  in ifx_spi_spi_probe()
1170 			gpio_to_irq(ifx_dev->gpio.reset_out));  in ifx_spi_spi_probe()
1174 	ret = ifx_spi_reset(ifx_dev);  in ifx_spi_spi_probe()
1176 	ret = request_irq(gpio_to_irq(ifx_dev->gpio.srdy),  in ifx_spi_spi_probe()
1178 			  ifx_dev);  in ifx_spi_spi_probe()
1181 			gpio_to_irq(ifx_dev->gpio.srdy));  in ifx_spi_spi_probe()
1193 	srdy = gpio_get_value(ifx_dev->gpio.srdy);  in ifx_spi_spi_probe()
1196 		mrdy_assert(ifx_dev);  in ifx_spi_spi_probe()
1197 		ifx_spi_handle_srdy(ifx_dev);  in ifx_spi_spi_probe()
1199 		mrdy_set_low(ifx_dev);  in ifx_spi_spi_probe()
1203 	free_irq(gpio_to_irq(ifx_dev->gpio.reset_out), ifx_dev);  in ifx_spi_spi_probe()
1205 	gpio_free(ifx_dev->gpio.srdy);  in ifx_spi_spi_probe()
1207 	gpio_free(ifx_dev->gpio.mrdy);  in ifx_spi_spi_probe()
1209 	gpio_free(ifx_dev->gpio.reset);  in ifx_spi_spi_probe()
1211 	gpio_free(ifx_dev->gpio.po);  in ifx_spi_spi_probe()
1213 	gpio_free(ifx_dev->gpio.reset_out);  in ifx_spi_spi_probe()
1215 	ifx_spi_free_device(ifx_dev);  in ifx_spi_spi_probe()
1230 	struct ifx_spi_device *ifx_dev = spi_get_drvdata(spi);  in ifx_spi_spi_remove()  local
1232 	tasklet_kill(&ifx_dev->io_work_tasklet);  in ifx_spi_spi_remove()
1234 	free_irq(gpio_to_irq(ifx_dev->gpio.reset_out), ifx_dev);  in ifx_spi_spi_remove()
1235 	free_irq(gpio_to_irq(ifx_dev->gpio.srdy), ifx_dev);  in ifx_spi_spi_remove()
1237 	gpio_free(ifx_dev->gpio.srdy);  in ifx_spi_spi_remove()
1238 	gpio_free(ifx_dev->gpio.mrdy);  in ifx_spi_spi_remove()
1239 	gpio_free(ifx_dev->gpio.reset);  in ifx_spi_spi_remove()
1240 	gpio_free(ifx_dev->gpio.po);  in ifx_spi_spi_remove()
1241 	gpio_free(ifx_dev->gpio.reset_out);  in ifx_spi_spi_remove()
1244 	ifx_spi_free_device(ifx_dev);  in ifx_spi_spi_remove()
1259 	struct ifx_spi_device *ifx_dev = spi_get_drvdata(spi);  in ifx_spi_spi_shutdown()  local
1261 	ifx_modem_power_off(ifx_dev);  in ifx_spi_spi_shutdown()
1326 	struct ifx_spi_device *ifx_dev = spi_get_drvdata(spi);  in ifx_spi_pm_runtime_idle()  local
1328 	if (!ifx_dev->power_status)  in ifx_spi_pm_runtime_idle()