272 static inline int is_imx1_i2c(struct imx_i2c_struct *i2c_imx)  in is_imx1_i2c()  argument
274 	return i2c_imx->hwdata->devtype == IMX1_I2C;  in is_imx1_i2c()
278 		struct imx_i2c_struct *i2c_imx, unsigned int reg)  in imx_i2c_write_reg()  argument
280 	writeb(val, i2c_imx->base + (reg << i2c_imx->hwdata->regshift));  in imx_i2c_write_reg()
283 static inline unsigned char imx_i2c_read_reg(struct imx_i2c_struct *i2c_imx,  in imx_i2c_read_reg()  argument
286 	return readb(i2c_imx->base + (reg << i2c_imx->hwdata->regshift));  in imx_i2c_read_reg()
290 static void i2c_imx_dma_request(struct imx_i2c_struct *i2c_imx,  in i2c_imx_dma_request()  argument
295 	struct device *dev = &i2c_imx->adapter.dev;  in i2c_imx_dma_request()
309 				(IMX_I2C_I2DR << i2c_imx->hwdata->regshift);  in i2c_imx_dma_request()
326 				(IMX_I2C_I2DR << i2c_imx->hwdata->regshift);  in i2c_imx_dma_request()
336 	i2c_imx->dma = dma;  in i2c_imx_dma_request()
354 	struct imx_i2c_struct *i2c_imx = (struct imx_i2c_struct *)arg;  in i2c_imx_dma_callback()  local
355 	struct imx_i2c_dma *dma = i2c_imx->dma;  in i2c_imx_dma_callback()
362 static int i2c_imx_dma_xfer(struct imx_i2c_struct *i2c_imx,  in i2c_imx_dma_xfer()  argument
365 	struct imx_i2c_dma *dma = i2c_imx->dma;  in i2c_imx_dma_xfer()
367 	struct device *dev = &i2c_imx->adapter.dev;  in i2c_imx_dma_xfer()
386 	txdesc->callback_param = i2c_imx;  in i2c_imx_dma_xfer()
403 static void i2c_imx_dma_free(struct imx_i2c_struct *i2c_imx)  in i2c_imx_dma_free()  argument
405 	struct imx_i2c_dma *dma = i2c_imx->dma;  in i2c_imx_dma_free()
422 static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)  in i2c_imx_bus_busy()  argument
427 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);  in i2c_imx_bus_busy()
430 		temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);  in i2c_imx_bus_busy()
435 			imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);  in i2c_imx_bus_busy()
444 			dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_bus_busy()
454 static int i2c_imx_trx_complete(struct imx_i2c_struct *i2c_imx)  in i2c_imx_trx_complete()  argument
456 	wait_event_timeout(i2c_imx->queue, i2c_imx->i2csr & I2SR_IIF, HZ / 10);  in i2c_imx_trx_complete()
458 	if (unlikely(!(i2c_imx->i2csr & I2SR_IIF))) {  in i2c_imx_trx_complete()
459 		dev_dbg(&i2c_imx->adapter.dev, "<%s> Timeout\n", __func__);  in i2c_imx_trx_complete()
462 	dev_dbg(&i2c_imx->adapter.dev, "<%s> TRX complete\n", __func__);  in i2c_imx_trx_complete()
463 	i2c_imx->i2csr = 0;  in i2c_imx_trx_complete()
467 static int i2c_imx_acked(struct imx_i2c_struct *i2c_imx)  in i2c_imx_acked()  argument
469 	if (imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR) & I2SR_RXAK) {  in i2c_imx_acked()
470 		dev_dbg(&i2c_imx->adapter.dev, "<%s> No ACK\n", __func__);  in i2c_imx_acked()
474 	dev_dbg(&i2c_imx->adapter.dev, "<%s> ACK received\n", __func__);  in i2c_imx_acked()
478 static void i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx)  in i2c_imx_set_clk()  argument
480 	struct imx_i2c_clk_pair *i2c_clk_div = i2c_imx->hwdata->clk_div;  in i2c_imx_set_clk()
486 	i2c_clk_rate = clk_get_rate(i2c_imx->clk);  in i2c_imx_set_clk()
487 	if (i2c_imx->cur_clk == i2c_clk_rate)  in i2c_imx_set_clk()
490 	i2c_imx->cur_clk = i2c_clk_rate;  in i2c_imx_set_clk()
492 	div = (i2c_clk_rate + i2c_imx->bitrate - 1) / i2c_imx->bitrate;  in i2c_imx_set_clk()
495 	else if (div > i2c_clk_div[i2c_imx->hwdata->ndivs - 1].div)  in i2c_imx_set_clk()
496 		i = i2c_imx->hwdata->ndivs - 1;  in i2c_imx_set_clk()
502 	i2c_imx->ifdr = i2c_clk_div[i].val;  in i2c_imx_set_clk()
510 	i2c_imx->disable_delay = (500000U * i2c_clk_div[i].div  in i2c_imx_set_clk()
514 	dev_dbg(&i2c_imx->adapter.dev, "I2C_CLK=%d, REQ DIV=%d\n",  in i2c_imx_set_clk()
516 	dev_dbg(&i2c_imx->adapter.dev, "IFDR[IC]=0x%x, REAL DIV=%d\n",  in i2c_imx_set_clk()
521 static int i2c_imx_start(struct imx_i2c_struct *i2c_imx)  in i2c_imx_start()  argument
526 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);  in i2c_imx_start()
528 	i2c_imx_set_clk(i2c_imx);  in i2c_imx_start()
530 	result = clk_prepare_enable(i2c_imx->clk);  in i2c_imx_start()
533 	imx_i2c_write_reg(i2c_imx->ifdr, i2c_imx, IMX_I2C_IFDR);  in i2c_imx_start()
535 	imx_i2c_write_reg(i2c_imx->hwdata->i2sr_clr_opcode, i2c_imx, IMX_I2C_I2SR);  in i2c_imx_start()
536 	imx_i2c_write_reg(i2c_imx->hwdata->i2cr_ien_opcode, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_start()
542 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_start()
544 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_start()
545 	result = i2c_imx_bus_busy(i2c_imx, 1);  in i2c_imx_start()
548 	i2c_imx->stopped = 0;  in i2c_imx_start()
552 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_start()
556 static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx)  in i2c_imx_stop()  argument
560 	if (!i2c_imx->stopped) {  in i2c_imx_stop()
562 		dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);  in i2c_imx_stop()
563 		temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_stop()
565 		if (i2c_imx->dma)  in i2c_imx_stop()
567 		imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_stop()
569 	if (is_imx1_i2c(i2c_imx)) {  in i2c_imx_stop()
574 		udelay(i2c_imx->disable_delay);  in i2c_imx_stop()
577 	if (!i2c_imx->stopped) {  in i2c_imx_stop()
578 		i2c_imx_bus_busy(i2c_imx, 0);  in i2c_imx_stop()
579 		i2c_imx->stopped = 1;  in i2c_imx_stop()
583 	temp = i2c_imx->hwdata->i2cr_ien_opcode ^ I2CR_IEN,  in i2c_imx_stop()
584 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_stop()
585 	clk_disable_unprepare(i2c_imx->clk);  in i2c_imx_stop()
590 	struct imx_i2c_struct *i2c_imx = dev_id;  in i2c_imx_isr()  local
593 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);  in i2c_imx_isr()
596 		i2c_imx->i2csr = temp;  in i2c_imx_isr()
598 		temp |= (i2c_imx->hwdata->i2sr_clr_opcode & I2SR_IIF);  in i2c_imx_isr()
599 		imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);  in i2c_imx_isr()
600 		wake_up(&i2c_imx->queue);  in i2c_imx_isr()
607 static int i2c_imx_dma_write(struct imx_i2c_struct *i2c_imx,  in i2c_imx_dma_write()  argument
614 	struct imx_i2c_dma *dma = i2c_imx->dma;  in i2c_imx_dma_write()
615 	struct device *dev = &i2c_imx->adapter.dev;  in i2c_imx_dma_write()
621 	result = i2c_imx_dma_xfer(i2c_imx, msgs);  in i2c_imx_dma_write()
625 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_write()
627 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_write()
633 	imx_i2c_write_reg(msgs->addr << 1, i2c_imx, IMX_I2C_I2DR);  in i2c_imx_dma_write()
634 	reinit_completion(&i2c_imx->dma->cmd_complete);  in i2c_imx_dma_write()
636 				&i2c_imx->dma->cmd_complete,  in i2c_imx_dma_write()
645 		temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);  in i2c_imx_dma_write()
656 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_write()
658 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_write()
662 				i2c_imx, IMX_I2C_I2DR);  in i2c_imx_dma_write()
663 	result = i2c_imx_trx_complete(i2c_imx);  in i2c_imx_dma_write()
667 	return i2c_imx_acked(i2c_imx);  in i2c_imx_dma_write()
670 static int i2c_imx_dma_read(struct imx_i2c_struct *i2c_imx,  in i2c_imx_dma_read()  argument
677 	struct imx_i2c_dma *dma = i2c_imx->dma;  in i2c_imx_dma_read()
678 	struct device *dev = &i2c_imx->adapter.dev;  in i2c_imx_dma_read()
680 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
682 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
689 	result = i2c_imx_dma_xfer(i2c_imx, msgs);  in i2c_imx_dma_read()
693 	reinit_completion(&i2c_imx->dma->cmd_complete);  in i2c_imx_dma_read()
695 				&i2c_imx->dma->cmd_complete,  in i2c_imx_dma_read()
704 		temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);  in i2c_imx_dma_read()
715 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
717 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
720 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
722 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
724 	msgs->buf[msgs->len-2] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);  in i2c_imx_dma_read()
726 	result = i2c_imx_trx_complete(i2c_imx);  in i2c_imx_dma_read()
736 		temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
738 		imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_dma_read()
739 		i2c_imx_bus_busy(i2c_imx, 0);  in i2c_imx_dma_read()
740 		i2c_imx->stopped = 1;  in i2c_imx_dma_read()
749 		temp = readb(i2c_imx->base + IMX_I2C_I2CR);  in i2c_imx_dma_read()
751 		writeb(temp, i2c_imx->base + IMX_I2C_I2CR);  in i2c_imx_dma_read()
753 	msgs->buf[msgs->len-1] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);  in i2c_imx_dma_read()
758 static int i2c_imx_write(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs)  in i2c_imx_write()  argument
762 	dev_dbg(&i2c_imx->adapter.dev, "<%s> write slave address: addr=0x%x\n",  in i2c_imx_write()
766 	imx_i2c_write_reg(msgs->addr << 1, i2c_imx, IMX_I2C_I2DR);  in i2c_imx_write()
767 	result = i2c_imx_trx_complete(i2c_imx);  in i2c_imx_write()
770 	result = i2c_imx_acked(i2c_imx);  in i2c_imx_write()
773 	dev_dbg(&i2c_imx->adapter.dev, "<%s> write data\n", __func__);  in i2c_imx_write()
777 		dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_write()
780 		imx_i2c_write_reg(msgs->buf[i], i2c_imx, IMX_I2C_I2DR);  in i2c_imx_write()
781 		result = i2c_imx_trx_complete(i2c_imx);  in i2c_imx_write()
784 		result = i2c_imx_acked(i2c_imx);  in i2c_imx_write()
791 static int i2c_imx_read(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs, bool is_lastmsg)  in i2c_imx_read()  argument
797 	dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_read()
802 	imx_i2c_write_reg((msgs->addr << 1) | 0x01, i2c_imx, IMX_I2C_I2DR);  in i2c_imx_read()
803 	result = i2c_imx_trx_complete(i2c_imx);  in i2c_imx_read()
806 	result = i2c_imx_acked(i2c_imx);  in i2c_imx_read()
810 	dev_dbg(&i2c_imx->adapter.dev, "<%s> setup bus\n", __func__);  in i2c_imx_read()
813 	temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_read()
822 	imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_read()
823 	imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR); /* dummy read */  in i2c_imx_read()
825 	dev_dbg(&i2c_imx->adapter.dev, "<%s> read data\n", __func__);  in i2c_imx_read()
827 	if (i2c_imx->dma && msgs->len >= DMA_THRESHOLD && !block_data)  in i2c_imx_read()
828 		return i2c_imx_dma_read(i2c_imx, msgs, is_lastmsg);  in i2c_imx_read()
834 		result = i2c_imx_trx_complete(i2c_imx);  in i2c_imx_read()
843 			len = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);  in i2c_imx_read()
846 			dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_read()
857 				dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_read()
859 				temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_read()
861 				imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_read()
862 				i2c_imx_bus_busy(i2c_imx, 0);  in i2c_imx_read()
863 				i2c_imx->stopped = 1;  in i2c_imx_read()
872 				temp = readb(i2c_imx->base + IMX_I2C_I2CR);  in i2c_imx_read()
874 				writeb(temp, i2c_imx->base + IMX_I2C_I2CR);  in i2c_imx_read()
877 			dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_read()
879 			temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_read()
881 			imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_read()
886 			msgs->buf[i] =  imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);  in i2c_imx_read()
887 		dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_read()
900 	struct imx_i2c_struct *i2c_imx = i2c_get_adapdata(adapter);  in i2c_imx_xfer()  local
902 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);  in i2c_imx_xfer()
905 	result = i2c_imx_start(i2c_imx);  in i2c_imx_xfer()
907 		if (i2c_imx->adapter.bus_recovery_info) {  in i2c_imx_xfer()
908 			i2c_recover_bus(&i2c_imx->adapter);  in i2c_imx_xfer()
909 			result = i2c_imx_start(i2c_imx);  in i2c_imx_xfer()
922 			dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_xfer()
924 			temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_xfer()
926 			imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_xfer()
927 			result =  i2c_imx_bus_busy(i2c_imx, 1);  in i2c_imx_xfer()
931 		dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_xfer()
935 		temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2CR);  in i2c_imx_xfer()
936 		dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_xfer()
942 		temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);  in i2c_imx_xfer()
943 		dev_dbg(&i2c_imx->adapter.dev,  in i2c_imx_xfer()
952 			result = i2c_imx_read(i2c_imx, &msgs[i], is_lastmsg);  in i2c_imx_xfer()
954 			if (i2c_imx->dma && msgs[i].len >= DMA_THRESHOLD)  in i2c_imx_xfer()
955 				result = i2c_imx_dma_write(i2c_imx, &msgs[i]);  in i2c_imx_xfer()
957 				result = i2c_imx_write(i2c_imx, &msgs[i]);  in i2c_imx_xfer()
965 	i2c_imx_stop(i2c_imx);  in i2c_imx_xfer()
967 	dev_dbg(&i2c_imx->adapter.dev, "<%s> exit with: %s: %d\n", __func__,  in i2c_imx_xfer()
975 	struct imx_i2c_struct *i2c_imx;  in i2c_imx_prepare_recovery()  local
977 	i2c_imx = container_of(adap, struct imx_i2c_struct, adapter);  in i2c_imx_prepare_recovery()
979 	pinctrl_select_state(i2c_imx->pinctrl, i2c_imx->pinctrl_pins_gpio);  in i2c_imx_prepare_recovery()
984 	struct imx_i2c_struct *i2c_imx;  in i2c_imx_unprepare_recovery()  local
986 	i2c_imx = container_of(adap, struct imx_i2c_struct, adapter);  in i2c_imx_unprepare_recovery()
988 	pinctrl_select_state(i2c_imx->pinctrl, i2c_imx->pinctrl_pins_default);  in i2c_imx_unprepare_recovery()
991 static void i2c_imx_init_recovery_info(struct imx_i2c_struct *i2c_imx,  in i2c_imx_init_recovery_info()  argument
994 	struct i2c_bus_recovery_info *rinfo = &i2c_imx->rinfo;  in i2c_imx_init_recovery_info()
996 	i2c_imx->pinctrl_pins_default = pinctrl_lookup_state(i2c_imx->pinctrl,  in i2c_imx_init_recovery_info()
998 	i2c_imx->pinctrl_pins_gpio = pinctrl_lookup_state(i2c_imx->pinctrl,  in i2c_imx_init_recovery_info()
1007 	    IS_ERR(i2c_imx->pinctrl_pins_default) ||  in i2c_imx_init_recovery_info()
1008 	    IS_ERR(i2c_imx->pinctrl_pins_gpio)) {  in i2c_imx_init_recovery_info()
1019 	i2c_imx->adapter.bus_recovery_info = rinfo;  in i2c_imx_init_recovery_info()
1037 	struct imx_i2c_struct *i2c_imx;  in i2c_imx_probe()  local
1058 	i2c_imx = devm_kzalloc(&pdev->dev, sizeof(*i2c_imx), GFP_KERNEL);  in i2c_imx_probe()
1059 	if (!i2c_imx)  in i2c_imx_probe()
1063 		i2c_imx->hwdata = of_id->data;  in i2c_imx_probe()
1065 		i2c_imx->hwdata = (struct imx_i2c_hwdata *)  in i2c_imx_probe()
1069 	strlcpy(i2c_imx->adapter.name, pdev->name, sizeof(i2c_imx->adapter.name));  in i2c_imx_probe()
1070 	i2c_imx->adapter.owner		= THIS_MODULE;  in i2c_imx_probe()
1071 	i2c_imx->adapter.algo		= &i2c_imx_algo;  in i2c_imx_probe()
1072 	i2c_imx->adapter.dev.parent	= &pdev->dev;  in i2c_imx_probe()
1073 	i2c_imx->adapter.nr		= pdev->id;  in i2c_imx_probe()
1074 	i2c_imx->adapter.dev.of_node	= pdev->dev.of_node;  in i2c_imx_probe()
1075 	i2c_imx->base			= base;  in i2c_imx_probe()
1078 	i2c_imx->clk = devm_clk_get(&pdev->dev, NULL);  in i2c_imx_probe()
1079 	if (IS_ERR(i2c_imx->clk)) {  in i2c_imx_probe()
1081 		return PTR_ERR(i2c_imx->clk);  in i2c_imx_probe()
1084 	ret = clk_prepare_enable(i2c_imx->clk);  in i2c_imx_probe()
1090 	i2c_imx->pinctrl = devm_pinctrl_get(&pdev->dev);  in i2c_imx_probe()
1091 	if (IS_ERR(i2c_imx->pinctrl)) {  in i2c_imx_probe()
1092 		ret = PTR_ERR(i2c_imx->pinctrl);  in i2c_imx_probe()
1098 				pdev->name, i2c_imx);  in i2c_imx_probe()
1105 	init_waitqueue_head(&i2c_imx->queue);  in i2c_imx_probe()
1108 	i2c_set_adapdata(&i2c_imx->adapter, i2c_imx);  in i2c_imx_probe()
1111 	i2c_imx->bitrate = IMX_I2C_BIT_RATE;  in i2c_imx_probe()
1113 				   "clock-frequency", &i2c_imx->bitrate);  in i2c_imx_probe()
1115 		i2c_imx->bitrate = pdata->bitrate;  in i2c_imx_probe()
1118 	imx_i2c_write_reg(i2c_imx->hwdata->i2cr_ien_opcode ^ I2CR_IEN,  in i2c_imx_probe()
1119 			i2c_imx, IMX_I2C_I2CR);  in i2c_imx_probe()
1120 	imx_i2c_write_reg(i2c_imx->hwdata->i2sr_clr_opcode, i2c_imx, IMX_I2C_I2SR);  in i2c_imx_probe()
1122 	i2c_imx_init_recovery_info(i2c_imx, pdev);  in i2c_imx_probe()
1125 	ret = i2c_add_numbered_adapter(&i2c_imx->adapter);  in i2c_imx_probe()
1132 	platform_set_drvdata(pdev, i2c_imx);  in i2c_imx_probe()
1133 	clk_disable_unprepare(i2c_imx->clk);  in i2c_imx_probe()
1135 	dev_dbg(&i2c_imx->adapter.dev, "claimed irq %d\n", irq);  in i2c_imx_probe()
1136 	dev_dbg(&i2c_imx->adapter.dev, "device resources: %pR\n", res);  in i2c_imx_probe()
1137 	dev_dbg(&i2c_imx->adapter.dev, "adapter name: \"%s\"\n",  in i2c_imx_probe()
1138 		i2c_imx->adapter.name);  in i2c_imx_probe()
1139 	dev_info(&i2c_imx->adapter.dev, "IMX I2C adapter registered\n");  in i2c_imx_probe()
1142 	i2c_imx_dma_request(i2c_imx, phy_addr);  in i2c_imx_probe()
1147 	clk_disable_unprepare(i2c_imx->clk);  in i2c_imx_probe()
1153 	struct imx_i2c_struct *i2c_imx = platform_get_drvdata(pdev);  in i2c_imx_remove()  local
1156 	dev_dbg(&i2c_imx->adapter.dev, "adapter removed\n");  in i2c_imx_remove()
1157 	i2c_del_adapter(&i2c_imx->adapter);  in i2c_imx_remove()
1159 	if (i2c_imx->dma)  in i2c_imx_remove()
1160 		i2c_imx_dma_free(i2c_imx);  in i2c_imx_remove()
1163 	imx_i2c_write_reg(0, i2c_imx, IMX_I2C_IADR);  in i2c_imx_remove()
1164 	imx_i2c_write_reg(0, i2c_imx, IMX_I2C_IFDR);  in i2c_imx_remove()
1165 	imx_i2c_write_reg(0, i2c_imx, IMX_I2C_I2CR);  in i2c_imx_remove()
1166 	imx_i2c_write_reg(0, i2c_imx, IMX_I2C_I2SR);  in i2c_imx_remove()