153 	void (*setup)(struct sh_mobile_i2c_data *pd);
197 static void iic_wr(struct sh_mobile_i2c_data *pd, int offs, unsigned char data)  in iic_wr()  argument
200 		data |= pd->icic;  in iic_wr()
202 	iowrite8(data, pd->reg + offs);  in iic_wr()
205 static unsigned char iic_rd(struct sh_mobile_i2c_data *pd, int offs)  in iic_rd()  argument
207 	return ioread8(pd->reg + offs);  in iic_rd()
210 static void iic_set_clr(struct sh_mobile_i2c_data *pd, int offs,  in iic_set_clr()  argument
213 	iic_wr(pd, offs, (iic_rd(pd, offs) | set) & ~clr);  in iic_set_clr()
250 static int sh_mobile_i2c_init(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_init()  argument
257 	clk_prepare_enable(pd->clk);  in sh_mobile_i2c_init()
258 	i2c_clk_khz = clk_get_rate(pd->clk) / 1000;  in sh_mobile_i2c_init()
259 	clk_disable_unprepare(pd->clk);  in sh_mobile_i2c_init()
260 	i2c_clk_khz /= pd->clks_per_count;  in sh_mobile_i2c_init()
262 	if (pd->bus_speed == STANDARD_MODE) {  in sh_mobile_i2c_init()
266 	} else if (pd->bus_speed == FAST_MODE) {  in sh_mobile_i2c_init()
271 		dev_err(pd->dev, "unrecognized bus speed %lu Hz\n",  in sh_mobile_i2c_init()
272 			pd->bus_speed);  in sh_mobile_i2c_init()
276 	pd->iccl = sh_mobile_i2c_iccl(i2c_clk_khz, tLOW, tf);  in sh_mobile_i2c_init()
277 	pd->icch = sh_mobile_i2c_icch(i2c_clk_khz, tHIGH, tf);  in sh_mobile_i2c_init()
279 	max_val = pd->flags & IIC_FLAG_HAS_ICIC67 ? 0x1ff : 0xff;  in sh_mobile_i2c_init()
280 	if (pd->iccl > max_val || pd->icch > max_val) {  in sh_mobile_i2c_init()
281 		dev_err(pd->dev, "timing values out of range: L/H=0x%x/0x%x\n",  in sh_mobile_i2c_init()
282 			pd->iccl, pd->icch);  in sh_mobile_i2c_init()
287 	if (pd->iccl & 0x100)  in sh_mobile_i2c_init()
288 		pd->icic |= ICIC_ICCLB8;  in sh_mobile_i2c_init()
290 		pd->icic &= ~ICIC_ICCLB8;  in sh_mobile_i2c_init()
293 	if (pd->icch & 0x100)  in sh_mobile_i2c_init()
294 		pd->icic |= ICIC_ICCHB8;  in sh_mobile_i2c_init()
296 		pd->icic &= ~ICIC_ICCHB8;  in sh_mobile_i2c_init()
298 	dev_dbg(pd->dev, "timing values: L/H=0x%x/0x%x\n", pd->iccl, pd->icch);  in sh_mobile_i2c_init()
302 static void activate_ch(struct sh_mobile_i2c_data *pd)  in activate_ch()  argument
305 	pm_runtime_get_sync(pd->dev);  in activate_ch()
306 	clk_prepare_enable(pd->clk);  in activate_ch()
309 	iic_set_clr(pd, ICCR, ICCR_ICE, 0);  in activate_ch()
312 	iic_wr(pd, ICIC, 0);  in activate_ch()
315 	iic_wr(pd, ICCL, pd->iccl & 0xff);  in activate_ch()
316 	iic_wr(pd, ICCH, pd->icch & 0xff);  in activate_ch()
319 static void deactivate_ch(struct sh_mobile_i2c_data *pd)  in deactivate_ch()  argument
322 	iic_wr(pd, ICSR, 0);  in deactivate_ch()
323 	iic_wr(pd, ICIC, 0);  in deactivate_ch()
326 	iic_set_clr(pd, ICCR, 0, ICCR_ICE);  in deactivate_ch()
329 	clk_disable_unprepare(pd->clk);  in deactivate_ch()
330 	pm_runtime_put_sync(pd->dev);  in deactivate_ch()
333 static unsigned char i2c_op(struct sh_mobile_i2c_data *pd,  in i2c_op()  argument
339 	dev_dbg(pd->dev, "op %d, data in 0x%02x\n", op, data);  in i2c_op()
341 	spin_lock_irqsave(&pd->lock, flags);  in i2c_op()
345 		iic_wr(pd, ICCR, ICCR_ICE | ICCR_TRS | ICCR_BBSY);  in i2c_op()
348 		iic_wr(pd, ICIC, ICIC_WAITE | ICIC_ALE | ICIC_TACKE);  in i2c_op()
349 		iic_wr(pd, ICDR, data);  in i2c_op()
352 		iic_wr(pd, ICDR, data);  in i2c_op()
355 		iic_wr(pd, ICDR, data);  in i2c_op()
358 		iic_wr(pd, ICCR, pd->send_stop ? ICCR_ICE | ICCR_TRS  in i2c_op()
362 		iic_wr(pd, ICCR, ICCR_ICE | ICCR_SCP);  in i2c_op()
365 		ret = iic_rd(pd, ICDR);  in i2c_op()
368 		iic_wr(pd, ICIC,  in i2c_op()
370 		iic_wr(pd, ICCR, ICCR_ICE | ICCR_RACK);  in i2c_op()
373 		iic_wr(pd, ICIC,  in i2c_op()
375 		ret = iic_rd(pd, ICDR);  in i2c_op()
376 		iic_wr(pd, ICCR, ICCR_ICE | ICCR_RACK);  in i2c_op()
380 	spin_unlock_irqrestore(&pd->lock, flags);  in i2c_op()
382 	dev_dbg(pd->dev, "op %d, data out 0x%02x\n", op, ret);  in i2c_op()
386 static bool sh_mobile_i2c_is_first_byte(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_is_first_byte()  argument
388 	return pd->pos == -1;  in sh_mobile_i2c_is_first_byte()
391 static bool sh_mobile_i2c_is_last_byte(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_is_last_byte()  argument
393 	return pd->pos == pd->msg->len - 1;  in sh_mobile_i2c_is_last_byte()
396 static void sh_mobile_i2c_get_data(struct sh_mobile_i2c_data *pd,  in sh_mobile_i2c_get_data()  argument
399 	switch (pd->pos) {  in sh_mobile_i2c_get_data()
401 		*buf = (pd->msg->addr & 0x7f) << 1;  in sh_mobile_i2c_get_data()
402 		*buf |= (pd->msg->flags & I2C_M_RD) ? 1 : 0;  in sh_mobile_i2c_get_data()
405 		*buf = pd->msg->buf[pd->pos];  in sh_mobile_i2c_get_data()
409 static int sh_mobile_i2c_isr_tx(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_isr_tx()  argument
413 	if (pd->pos == pd->msg->len) {  in sh_mobile_i2c_isr_tx()
415 		if (pd->send_stop && pd->stop_after_dma)  in sh_mobile_i2c_isr_tx()
416 			i2c_op(pd, OP_TX_STOP, 0);  in sh_mobile_i2c_isr_tx()
420 	sh_mobile_i2c_get_data(pd, &data);  in sh_mobile_i2c_isr_tx()
422 	if (sh_mobile_i2c_is_last_byte(pd))  in sh_mobile_i2c_isr_tx()
423 		i2c_op(pd, OP_TX_STOP_DATA, data);  in sh_mobile_i2c_isr_tx()
424 	else if (sh_mobile_i2c_is_first_byte(pd))  in sh_mobile_i2c_isr_tx()
425 		i2c_op(pd, OP_TX_FIRST, data);  in sh_mobile_i2c_isr_tx()
427 		i2c_op(pd, OP_TX, data);  in sh_mobile_i2c_isr_tx()
429 	pd->pos++;  in sh_mobile_i2c_isr_tx()
433 static int sh_mobile_i2c_isr_rx(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_isr_rx()  argument
439 		if (pd->pos <= -1) {  in sh_mobile_i2c_isr_rx()
440 			sh_mobile_i2c_get_data(pd, &data);  in sh_mobile_i2c_isr_rx()
442 			if (sh_mobile_i2c_is_first_byte(pd))  in sh_mobile_i2c_isr_rx()
443 				i2c_op(pd, OP_TX_FIRST, data);  in sh_mobile_i2c_isr_rx()
445 				i2c_op(pd, OP_TX, data);  in sh_mobile_i2c_isr_rx()
449 		if (pd->pos == 0) {  in sh_mobile_i2c_isr_rx()
450 			i2c_op(pd, OP_TX_TO_RX, 0);  in sh_mobile_i2c_isr_rx()
454 		real_pos = pd->pos - 2;  in sh_mobile_i2c_isr_rx()
456 		if (pd->pos == pd->msg->len) {  in sh_mobile_i2c_isr_rx()
457 			if (pd->stop_after_dma) {  in sh_mobile_i2c_isr_rx()
459 				i2c_op(pd, OP_RX_STOP, 0);  in sh_mobile_i2c_isr_rx()
460 				pd->pos++;  in sh_mobile_i2c_isr_rx()
465 				i2c_op(pd, OP_RX_STOP, 0);  in sh_mobile_i2c_isr_rx()
468 			data = i2c_op(pd, OP_RX_STOP_DATA, 0);  in sh_mobile_i2c_isr_rx()
470 			data = i2c_op(pd, OP_RX, 0);  in sh_mobile_i2c_isr_rx()
473 			pd->msg->buf[real_pos] = data;  in sh_mobile_i2c_isr_rx()
476 	pd->pos++;  in sh_mobile_i2c_isr_rx()
477 	return pd->pos == (pd->msg->len + 2);  in sh_mobile_i2c_isr_rx()
482 	struct sh_mobile_i2c_data *pd = dev_id;  in sh_mobile_i2c_isr()  local
486 	sr = iic_rd(pd, ICSR);  in sh_mobile_i2c_isr()
487 	pd->sr |= sr; /* remember state */  in sh_mobile_i2c_isr()
489 	dev_dbg(pd->dev, "i2c_isr 0x%02x 0x%02x %s %d %d!\n", sr, pd->sr,  in sh_mobile_i2c_isr()
490 	       (pd->msg->flags & I2C_M_RD) ? "read" : "write",  in sh_mobile_i2c_isr()
491 	       pd->pos, pd->msg->len);  in sh_mobile_i2c_isr()
494 	if (pd->dma_direction == DMA_TO_DEVICE && pd->pos == 0)  in sh_mobile_i2c_isr()
495 		iic_set_clr(pd, ICIC, ICIC_TDMAE, 0);  in sh_mobile_i2c_isr()
498 		iic_wr(pd, ICSR, sr & ~(ICSR_AL | ICSR_TACK));  in sh_mobile_i2c_isr()
499 	else if (pd->msg->flags & I2C_M_RD)  in sh_mobile_i2c_isr()
500 		wakeup = sh_mobile_i2c_isr_rx(pd);  in sh_mobile_i2c_isr()
502 		wakeup = sh_mobile_i2c_isr_tx(pd);  in sh_mobile_i2c_isr()
505 	if (pd->dma_direction == DMA_FROM_DEVICE && pd->pos == 1)  in sh_mobile_i2c_isr()
506 		iic_set_clr(pd, ICIC, ICIC_RDMAE, 0);  in sh_mobile_i2c_isr()
509 		iic_wr(pd, ICSR, sr & ~ICSR_WAIT);  in sh_mobile_i2c_isr()
512 		pd->sr |= SW_DONE;  in sh_mobile_i2c_isr()
513 		wake_up(&pd->wait);  in sh_mobile_i2c_isr()
517 	iic_rd(pd, ICSR);  in sh_mobile_i2c_isr()
522 static void sh_mobile_i2c_dma_unmap(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_dma_unmap()  argument
524 	struct dma_chan *chan = pd->dma_direction == DMA_FROM_DEVICE  in sh_mobile_i2c_dma_unmap()
525 				? pd->dma_rx : pd->dma_tx;  in sh_mobile_i2c_dma_unmap()
527 	dma_unmap_single(chan->device->dev, sg_dma_address(&pd->sg),  in sh_mobile_i2c_dma_unmap()
528 			 pd->msg->len, pd->dma_direction);  in sh_mobile_i2c_dma_unmap()
530 	pd->dma_direction = DMA_NONE;  in sh_mobile_i2c_dma_unmap()
533 static void sh_mobile_i2c_cleanup_dma(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_cleanup_dma()  argument
535 	if (pd->dma_direction == DMA_NONE)  in sh_mobile_i2c_cleanup_dma()
537 	else if (pd->dma_direction == DMA_FROM_DEVICE)  in sh_mobile_i2c_cleanup_dma()
538 		dmaengine_terminate_all(pd->dma_rx);  in sh_mobile_i2c_cleanup_dma()
539 	else if (pd->dma_direction == DMA_TO_DEVICE)  in sh_mobile_i2c_cleanup_dma()
540 		dmaengine_terminate_all(pd->dma_tx);  in sh_mobile_i2c_cleanup_dma()
542 	sh_mobile_i2c_dma_unmap(pd);  in sh_mobile_i2c_cleanup_dma()
547 	struct sh_mobile_i2c_data *pd = data;  in sh_mobile_i2c_dma_callback()  local
549 	sh_mobile_i2c_dma_unmap(pd);  in sh_mobile_i2c_dma_callback()
550 	pd->pos = pd->msg->len;  in sh_mobile_i2c_dma_callback()
551 	pd->stop_after_dma = true;  in sh_mobile_i2c_dma_callback()
553 	iic_set_clr(pd, ICIC, 0, ICIC_TDMAE | ICIC_RDMAE);  in sh_mobile_i2c_dma_callback()
592 static void sh_mobile_i2c_xfer_dma(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_xfer_dma()  argument
594 	bool read = pd->msg->flags & I2C_M_RD;  in sh_mobile_i2c_xfer_dma()
596 	struct dma_chan *chan = read ? pd->dma_rx : pd->dma_tx;  in sh_mobile_i2c_xfer_dma()
603 			chan = pd->dma_rx = sh_mobile_i2c_request_dma_chan(pd->dev, DMA_DEV_TO_MEM,  in sh_mobile_i2c_xfer_dma()
604 									   pd->res->start + ICDR);  in sh_mobile_i2c_xfer_dma()
606 			chan = pd->dma_tx = sh_mobile_i2c_request_dma_chan(pd->dev, DMA_MEM_TO_DEV,  in sh_mobile_i2c_xfer_dma()
607 									   pd->res->start + ICDR);  in sh_mobile_i2c_xfer_dma()
613 	dma_addr = dma_map_single(chan->device->dev, pd->msg->buf, pd->msg->len, dir);  in sh_mobile_i2c_xfer_dma()
614 	if (dma_mapping_error(pd->dev, dma_addr)) {  in sh_mobile_i2c_xfer_dma()
615 		dev_dbg(pd->dev, "dma map failed, using PIO\n");  in sh_mobile_i2c_xfer_dma()
619 	sg_dma_len(&pd->sg) = pd->msg->len;  in sh_mobile_i2c_xfer_dma()
620 	sg_dma_address(&pd->sg) = dma_addr;  in sh_mobile_i2c_xfer_dma()
622 	pd->dma_direction = dir;  in sh_mobile_i2c_xfer_dma()
624 	txdesc = dmaengine_prep_slave_sg(chan, &pd->sg, 1,  in sh_mobile_i2c_xfer_dma()
628 		dev_dbg(pd->dev, "dma prep slave sg failed, using PIO\n");  in sh_mobile_i2c_xfer_dma()
629 		sh_mobile_i2c_cleanup_dma(pd);  in sh_mobile_i2c_xfer_dma()
634 	txdesc->callback_param = pd;  in sh_mobile_i2c_xfer_dma()
638 		dev_dbg(pd->dev, "submitting dma failed, using PIO\n");  in sh_mobile_i2c_xfer_dma()
639 		sh_mobile_i2c_cleanup_dma(pd);  in sh_mobile_i2c_xfer_dma()
646 static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,  in start_ch()  argument
650 		dev_err(pd->dev, "Unsupported zero length i2c read\n");  in start_ch()
656 		iic_set_clr(pd, ICCR, 0, ICCR_ICE);  in start_ch()
659 		iic_set_clr(pd, ICCR, ICCR_ICE, 0);  in start_ch()
662 		iic_wr(pd, ICCL, pd->iccl & 0xff);  in start_ch()
663 		iic_wr(pd, ICCH, pd->icch & 0xff);  in start_ch()
666 	pd->msg = usr_msg;  in start_ch()
667 	pd->pos = -1;  in start_ch()
668 	pd->sr = 0;  in start_ch()
670 	if (pd->msg->len > 8)  in start_ch()
671 		sh_mobile_i2c_xfer_dma(pd);  in start_ch()
674 	iic_wr(pd, ICIC, ICIC_DTEE | ICIC_WAITE | ICIC_ALE | ICIC_TACKE);  in start_ch()
678 static int poll_dte(struct sh_mobile_i2c_data *pd)  in poll_dte()  argument
683 		u_int8_t val = iic_rd(pd, ICSR);  in poll_dte()
697 static int poll_busy(struct sh_mobile_i2c_data *pd)  in poll_busy()  argument
702 		u_int8_t val = iic_rd(pd, ICSR);  in poll_busy()
704 		dev_dbg(pd->dev, "val 0x%02x pd->sr 0x%02x\n", val, pd->sr);  in poll_busy()
712 			val |= pd->sr;  in poll_busy()
730 	struct sh_mobile_i2c_data *pd = i2c_get_adapdata(adapter);  in sh_mobile_i2c_xfer()  local
736 	activate_ch(pd);  in sh_mobile_i2c_xfer()
740 		bool do_start = pd->send_stop || !i;  in sh_mobile_i2c_xfer()
742 		pd->send_stop = i == num - 1 || msg->flags & I2C_M_STOP;  in sh_mobile_i2c_xfer()
743 		pd->stop_after_dma = false;  in sh_mobile_i2c_xfer()
745 		err = start_ch(pd, msg, do_start);  in sh_mobile_i2c_xfer()
750 			i2c_op(pd, OP_START, 0);  in sh_mobile_i2c_xfer()
753 		timeout = wait_event_timeout(pd->wait,  in sh_mobile_i2c_xfer()
754 				       pd->sr & (ICSR_TACK | SW_DONE),  in sh_mobile_i2c_xfer()
757 			dev_err(pd->dev, "Transfer request timed out\n");  in sh_mobile_i2c_xfer()
758 			if (pd->dma_direction != DMA_NONE)  in sh_mobile_i2c_xfer()
759 				sh_mobile_i2c_cleanup_dma(pd);  in sh_mobile_i2c_xfer()
765 		if (pd->send_stop)  in sh_mobile_i2c_xfer()
766 			err = poll_busy(pd);  in sh_mobile_i2c_xfer()
768 			err = poll_dte(pd);  in sh_mobile_i2c_xfer()
773 	deactivate_ch(pd);  in sh_mobile_i2c_xfer()
794 static void sh_mobile_i2c_r8a7740_workaround(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_r8a7740_workaround()  argument
796 	iic_set_clr(pd, ICCR, ICCR_ICE, 0);  in sh_mobile_i2c_r8a7740_workaround()
797 	iic_rd(pd, ICCR); /* dummy read */  in sh_mobile_i2c_r8a7740_workaround()
799 	iic_set_clr(pd, ICSTART, ICSTART_ICSTART, 0);  in sh_mobile_i2c_r8a7740_workaround()
800 	iic_rd(pd, ICSTART); /* dummy read */  in sh_mobile_i2c_r8a7740_workaround()
804 	iic_wr(pd, ICCR, ICCR_SCP);  in sh_mobile_i2c_r8a7740_workaround()
805 	iic_wr(pd, ICSTART, 0);  in sh_mobile_i2c_r8a7740_workaround()
809 	iic_wr(pd, ICCR, ICCR_TRS);  in sh_mobile_i2c_r8a7740_workaround()
811 	iic_wr(pd, ICCR, 0);  in sh_mobile_i2c_r8a7740_workaround()
813 	iic_wr(pd, ICCR, ICCR_TRS);  in sh_mobile_i2c_r8a7740_workaround()
845 static void sh_mobile_i2c_release_dma(struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_release_dma()  argument
847 	if (!IS_ERR(pd->dma_tx)) {  in sh_mobile_i2c_release_dma()
848 		dma_release_channel(pd->dma_tx);  in sh_mobile_i2c_release_dma()
849 		pd->dma_tx = ERR_PTR(-EPROBE_DEFER);  in sh_mobile_i2c_release_dma()
852 	if (!IS_ERR(pd->dma_rx)) {  in sh_mobile_i2c_release_dma()
853 		dma_release_channel(pd->dma_rx);  in sh_mobile_i2c_release_dma()
854 		pd->dma_rx = ERR_PTR(-EPROBE_DEFER);  in sh_mobile_i2c_release_dma()
858 static int sh_mobile_i2c_hook_irqs(struct platform_device *dev, struct sh_mobile_i2c_data *pd)  in sh_mobile_i2c_hook_irqs()  argument
867 					  0, dev_name(&dev->dev), pd);  in sh_mobile_i2c_hook_irqs()
882 	struct sh_mobile_i2c_data *pd;  in sh_mobile_i2c_probe()  local
888 	pd = devm_kzalloc(&dev->dev, sizeof(struct sh_mobile_i2c_data), GFP_KERNEL);  in sh_mobile_i2c_probe()
889 	if (!pd)  in sh_mobile_i2c_probe()
892 	pd->clk = devm_clk_get(&dev->dev, NULL);  in sh_mobile_i2c_probe()
893 	if (IS_ERR(pd->clk)) {  in sh_mobile_i2c_probe()
895 		return PTR_ERR(pd->clk);  in sh_mobile_i2c_probe()
898 	ret = sh_mobile_i2c_hook_irqs(dev, pd);  in sh_mobile_i2c_probe()
902 	pd->dev = &dev->dev;  in sh_mobile_i2c_probe()
903 	platform_set_drvdata(dev, pd);  in sh_mobile_i2c_probe()
907 	pd->res = res;  in sh_mobile_i2c_probe()
908 	pd->reg = devm_ioremap_resource(&dev->dev, res);  in sh_mobile_i2c_probe()
909 	if (IS_ERR(pd->reg))  in sh_mobile_i2c_probe()
910 		return PTR_ERR(pd->reg);  in sh_mobile_i2c_probe()
914 	pd->bus_speed = ret ? STANDARD_MODE : bus_speed;  in sh_mobile_i2c_probe()
916 	pd->clks_per_count = 1;  in sh_mobile_i2c_probe()
926 			pd->clks_per_count = config->clks_per_count;  in sh_mobile_i2c_probe()
929 				config->setup(pd);  in sh_mobile_i2c_probe()
933 			pd->bus_speed = pdata->bus_speed;  in sh_mobile_i2c_probe()
935 			pd->clks_per_count = pdata->clks_per_count;  in sh_mobile_i2c_probe()
942 		pd->flags |= IIC_FLAG_HAS_ICIC67;  in sh_mobile_i2c_probe()
944 	ret = sh_mobile_i2c_init(pd);  in sh_mobile_i2c_probe()
949 	sg_init_table(&pd->sg, 1);  in sh_mobile_i2c_probe()
950 	pd->dma_direction = DMA_NONE;  in sh_mobile_i2c_probe()
951 	pd->dma_rx = pd->dma_tx = ERR_PTR(-EPROBE_DEFER);  in sh_mobile_i2c_probe()
967 	adap = &pd->adap;  in sh_mobile_i2c_probe()
968 	i2c_set_adapdata(adap, pd);  in sh_mobile_i2c_probe()
979 	spin_lock_init(&pd->lock);  in sh_mobile_i2c_probe()
980 	init_waitqueue_head(&pd->wait);  in sh_mobile_i2c_probe()
984 		sh_mobile_i2c_release_dma(pd);  in sh_mobile_i2c_probe()
989 	dev_info(&dev->dev, "I2C adapter %d, bus speed %lu Hz\n", adap->nr, pd->bus_speed);  in sh_mobile_i2c_probe()
996 	struct sh_mobile_i2c_data *pd = platform_get_drvdata(dev);  in sh_mobile_i2c_remove()  local
998 	i2c_del_adapter(&pd->adap);  in sh_mobile_i2c_remove()
999 	sh_mobile_i2c_release_dma(pd);  in sh_mobile_i2c_remove()