217 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_data_ptr()  local
219 	return nfc->buffer + i * mtk_data_len(chip);  in mtk_data_ptr()
224 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_oob_ptr()  local
226 	return nfc->buffer + i * mtk_data_len(chip) + chip->ecc.size;  in mtk_oob_ptr()
229 static inline void nfi_writel(struct mtk_nfc *nfc, u32 val, u32 reg)  in nfi_writel()  argument
231 	writel(val, nfc->regs + reg);  in nfi_writel()
234 static inline void nfi_writew(struct mtk_nfc *nfc, u16 val, u32 reg)  in nfi_writew()  argument
236 	writew(val, nfc->regs + reg);  in nfi_writew()
239 static inline void nfi_writeb(struct mtk_nfc *nfc, u8 val, u32 reg)  in nfi_writeb()  argument
241 	writeb(val, nfc->regs + reg);  in nfi_writeb()
244 static inline u32 nfi_readl(struct mtk_nfc *nfc, u32 reg)  in nfi_readl()  argument
246 	return readl_relaxed(nfc->regs + reg);  in nfi_readl()
249 static inline u16 nfi_readw(struct mtk_nfc *nfc, u32 reg)  in nfi_readw()  argument
251 	return readw_relaxed(nfc->regs + reg);  in nfi_readw()
254 static inline u8 nfi_readb(struct mtk_nfc *nfc, u32 reg)  in nfi_readb()  argument
256 	return readb_relaxed(nfc->regs + reg);  in nfi_readb()
259 static void mtk_nfc_hw_reset(struct mtk_nfc *nfc)  in mtk_nfc_hw_reset()  argument
261 	struct device *dev = nfc->dev;  in mtk_nfc_hw_reset()
266 	nfi_writel(nfc, CON_FIFO_FLUSH | CON_NFI_RST, NFI_CON);  in mtk_nfc_hw_reset()
269 	ret = readl_poll_timeout(nfc->regs + NFI_MASTER_STA, val,  in mtk_nfc_hw_reset()
277 	nfi_writel(nfc, CON_FIFO_FLUSH | CON_NFI_RST, NFI_CON);  in mtk_nfc_hw_reset()
278 	nfi_writew(nfc, STAR_DE, NFI_STRDATA);  in mtk_nfc_hw_reset()
281 static int mtk_nfc_send_command(struct mtk_nfc *nfc, u8 command)  in mtk_nfc_send_command()  argument
283 	struct device *dev = nfc->dev;  in mtk_nfc_send_command()
287 	nfi_writel(nfc, command, NFI_CMD);  in mtk_nfc_send_command()
289 	ret = readl_poll_timeout_atomic(nfc->regs + NFI_STA, val,  in mtk_nfc_send_command()
299 static int mtk_nfc_send_address(struct mtk_nfc *nfc, int addr)  in mtk_nfc_send_address()  argument
301 	struct device *dev = nfc->dev;  in mtk_nfc_send_address()
305 	nfi_writel(nfc, addr, NFI_COLADDR);  in mtk_nfc_send_address()
306 	nfi_writel(nfc, 0, NFI_ROWADDR);  in mtk_nfc_send_address()
307 	nfi_writew(nfc, 1, NFI_ADDRNOB);  in mtk_nfc_send_address()
309 	ret = readl_poll_timeout_atomic(nfc->regs + NFI_STA, val,  in mtk_nfc_send_address()
323 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_hw_runtime_config()  local
357 		dev_err(nfc->dev, "invalid page len: %d\n", mtd->writesize);  in mtk_nfc_hw_runtime_config()
368 	for (i = 0; i < nfc->caps->num_spare_size; i++) {  in mtk_nfc_hw_runtime_config()
369 		if (nfc->caps->spare_size[i] == spare)  in mtk_nfc_hw_runtime_config()
373 	if (i == nfc->caps->num_spare_size) {  in mtk_nfc_hw_runtime_config()
374 		dev_err(nfc->dev, "invalid spare size %d\n", spare);  in mtk_nfc_hw_runtime_config()
378 	fmt |= i << nfc->caps->pageformat_spare_shift;  in mtk_nfc_hw_runtime_config()
382 	nfi_writel(nfc, fmt, NFI_PAGEFMT);  in mtk_nfc_hw_runtime_config()
384 	nfc->ecc_cfg.strength = chip->ecc.strength;  in mtk_nfc_hw_runtime_config()
385 	nfc->ecc_cfg.len = chip->ecc.size + mtk_nand->fdm.ecc_size;  in mtk_nfc_hw_runtime_config()
390 static inline void mtk_nfc_wait_ioready(struct mtk_nfc *nfc)  in mtk_nfc_wait_ioready()  argument
395 	rc = readb_poll_timeout_atomic(nfc->regs + NFI_PIO_DIRDY, val,  in mtk_nfc_wait_ioready()
398 		dev_err(nfc->dev, "data not ready\n");  in mtk_nfc_wait_ioready()
403 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_read_byte()  local
407 	reg = nfi_readl(nfc, NFI_STA) & NFI_FSM_MASK;  in mtk_nfc_read_byte()
409 		reg = nfi_readw(nfc, NFI_CNFG);  in mtk_nfc_read_byte()
411 		nfi_writew(nfc, reg, NFI_CNFG);  in mtk_nfc_read_byte()
417 		reg = (nfc->caps->max_sector << CON_SEC_SHIFT) | CON_BRD;  in mtk_nfc_read_byte()
418 		nfi_writel(nfc, reg, NFI_CON);  in mtk_nfc_read_byte()
421 		nfi_writew(nfc, STAR_EN, NFI_STRDATA);  in mtk_nfc_read_byte()
424 	mtk_nfc_wait_ioready(nfc);  in mtk_nfc_read_byte()
426 	return nfi_readb(nfc, NFI_DATAR);  in mtk_nfc_read_byte()
439 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_write_byte()  local
442 	reg = nfi_readl(nfc, NFI_STA) & NFI_FSM_MASK;  in mtk_nfc_write_byte()
445 		reg = nfi_readw(nfc, NFI_CNFG) | CNFG_BYTE_RW;  in mtk_nfc_write_byte()
446 		nfi_writew(nfc, reg, NFI_CNFG);  in mtk_nfc_write_byte()
448 		reg = nfc->caps->max_sector << CON_SEC_SHIFT | CON_BWR;  in mtk_nfc_write_byte()
449 		nfi_writel(nfc, reg, NFI_CON);  in mtk_nfc_write_byte()
451 		nfi_writew(nfc, STAR_EN, NFI_STRDATA);  in mtk_nfc_write_byte()
454 	mtk_nfc_wait_ioready(nfc);  in mtk_nfc_write_byte()
455 	nfi_writeb(nfc, byte, NFI_DATAW);  in mtk_nfc_write_byte()
469 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_exec_instr()  local
475 		mtk_nfc_send_command(nfc, instr->ctx.cmd.opcode);  in mtk_nfc_exec_instr()
479 			mtk_nfc_send_address(nfc, instr->ctx.addr.addrs[i]);  in mtk_nfc_exec_instr()
490 		return readl_poll_timeout(nfc->regs + NFI_STA, status,  in mtk_nfc_exec_instr()
502 	struct mtk_nfc *nfc = nand_get_controller_data(nand);  in mtk_nfc_select_target()  local
507 	nfi_writel(nfc, mtk_nand->sels[cs], NFI_CSEL);  in mtk_nfc_select_target()
514 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_exec_op()  local
521 	mtk_nfc_hw_reset(nfc);  in mtk_nfc_exec_op()
522 	nfi_writew(nfc, CNFG_OP_CUST, NFI_CNFG);  in mtk_nfc_exec_op()
537 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_setup_interface()  local
549 	rate = clk_get_rate(nfc->clk.nfi_clk);  in mtk_nfc_setup_interface()
551 	rate /= nfc->caps->nfi_clk_div;  in mtk_nfc_setup_interface()
618 	temp = nfi_readl(nfc, NFI_DEBUG_CON1);  in mtk_nfc_setup_interface()
621 	nfi_writel(nfc, temp, NFI_DEBUG_CON1);  in mtk_nfc_setup_interface()
637 	nfi_writel(nfc, trlt, NFI_ACCCON);  in mtk_nfc_setup_interface()
644 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_sector_encode()  local
648 	nfc->ecc_cfg.mode = ECC_DMA_MODE;  in mtk_nfc_sector_encode()
649 	nfc->ecc_cfg.op = ECC_ENCODE;  in mtk_nfc_sector_encode()
651 	return mtk_ecc_encode(nfc->ecc, &nfc->ecc_cfg, data, size);  in mtk_nfc_sector_encode()
678 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_format_subpage()  local
686 	memset(nfc->buffer, 0xff, mtd->writesize + mtd->oobsize);  in mtk_nfc_format_subpage()
695 			mtk_nand->bad_mark.bm_swap(mtd, nfc->buffer, 1);  in mtk_nfc_format_subpage()
712 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_format_page()  local
716 	memset(nfc->buffer, 0xff, mtd->writesize + mtd->oobsize);  in mtk_nfc_format_page()
723 			mtk_nand->bad_mark.bm_swap(mtd, nfc->buffer, 1);  in mtk_nfc_format_page()
732 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_read_fdm()  local
741 		vall = nfi_readl(nfc, NFI_FDML(i));  in mtk_nfc_read_fdm()
742 		valm = nfi_readl(nfc, NFI_FDMM(i));  in mtk_nfc_read_fdm()
751 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_write_fdm()  local
770 		nfi_writel(nfc, vall, NFI_FDML(i));  in mtk_nfc_write_fdm()
771 		nfi_writel(nfc, valm, NFI_FDMM(i));  in mtk_nfc_write_fdm()
778 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_do_write_page()  local
779 	struct device *dev = nfc->dev;  in mtk_nfc_do_write_page()
785 	ret = dma_mapping_error(nfc->dev, addr);  in mtk_nfc_do_write_page()
787 		dev_err(nfc->dev, "dma mapping error\n");  in mtk_nfc_do_write_page()
791 	reg = nfi_readw(nfc, NFI_CNFG) | CNFG_AHB | CNFG_DMA_BURST_EN;  in mtk_nfc_do_write_page()
792 	nfi_writew(nfc, reg, NFI_CNFG);  in mtk_nfc_do_write_page()
794 	nfi_writel(nfc, chip->ecc.steps << CON_SEC_SHIFT, NFI_CON);  in mtk_nfc_do_write_page()
795 	nfi_writel(nfc, lower_32_bits(addr), NFI_STRADDR);  in mtk_nfc_do_write_page()
796 	nfi_writew(nfc, INTR_AHB_DONE_EN, NFI_INTR_EN);  in mtk_nfc_do_write_page()
798 	init_completion(&nfc->done);  in mtk_nfc_do_write_page()
800 	reg = nfi_readl(nfc, NFI_CON) | CON_BWR;  in mtk_nfc_do_write_page()
801 	nfi_writel(nfc, reg, NFI_CON);  in mtk_nfc_do_write_page()
802 	nfi_writew(nfc, STAR_EN, NFI_STRDATA);  in mtk_nfc_do_write_page()
804 	ret = wait_for_completion_timeout(&nfc->done, msecs_to_jiffies(500));  in mtk_nfc_do_write_page()
807 		nfi_writew(nfc, 0, NFI_INTR_EN);  in mtk_nfc_do_write_page()
812 	ret = readl_poll_timeout_atomic(nfc->regs + NFI_ADDRCNTR, reg,  in mtk_nfc_do_write_page()
820 	dma_unmap_single(nfc->dev, addr, len, DMA_TO_DEVICE);  in mtk_nfc_do_write_page()
821 	nfi_writel(nfc, 0, NFI_CON);  in mtk_nfc_do_write_page()
829 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_write_page()  local
841 		reg = nfi_readw(nfc, NFI_CNFG) | CNFG_AUTO_FMT_EN;  in mtk_nfc_write_page()
842 		nfi_writew(nfc, reg | CNFG_HW_ECC_EN, NFI_CNFG);  in mtk_nfc_write_page()
844 		nfc->ecc_cfg.op = ECC_ENCODE;  in mtk_nfc_write_page()
845 		nfc->ecc_cfg.mode = ECC_NFI_MODE;  in mtk_nfc_write_page()
846 		ret = mtk_ecc_enable(nfc->ecc, &nfc->ecc_cfg);  in mtk_nfc_write_page()
849 			reg = nfi_readw(nfc, NFI_CNFG);  in mtk_nfc_write_page()
851 			nfi_writew(nfc, reg, NFI_CNFG);  in mtk_nfc_write_page()
856 		memcpy(nfc->buffer, buf, mtd->writesize);  in mtk_nfc_write_page()
857 		mtk_nand->bad_mark.bm_swap(mtd, nfc->buffer, raw);  in mtk_nfc_write_page()
858 		bufpoi = nfc->buffer;  in mtk_nfc_write_page()
870 		mtk_ecc_disable(nfc->ecc);  in mtk_nfc_write_page()
888 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_write_page_raw()  local
891 	return mtk_nfc_write_page(mtd, chip, nfc->buffer, pg, 1);  in mtk_nfc_write_page_raw()
899 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_write_subpage_hwecc()  local
907 	return mtk_nfc_write_page(mtd, chip, nfc->buffer, page, 1);  in mtk_nfc_write_subpage_hwecc()
919 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_update_ecc_stats()  local
925 	rc = nfi_readl(nfc, NFI_STA) & STA_EMP_PAGE;  in mtk_nfc_update_ecc_stats()
933 	mtk_ecc_get_stats(nfc->ecc, &stats, sectors);  in mtk_nfc_update_ecc_stats()
944 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_read_subpage()  local
966 	addr = dma_map_single(nfc->dev, buf, len, DMA_FROM_DEVICE);  in mtk_nfc_read_subpage()
967 	rc = dma_mapping_error(nfc->dev, addr);  in mtk_nfc_read_subpage()
969 		dev_err(nfc->dev, "dma mapping error\n");  in mtk_nfc_read_subpage()
974 	reg = nfi_readw(nfc, NFI_CNFG);  in mtk_nfc_read_subpage()
978 		nfi_writew(nfc, reg, NFI_CNFG);  in mtk_nfc_read_subpage()
980 		nfc->ecc_cfg.mode = ECC_NFI_MODE;  in mtk_nfc_read_subpage()
981 		nfc->ecc_cfg.sectors = sectors;  in mtk_nfc_read_subpage()
982 		nfc->ecc_cfg.op = ECC_DECODE;  in mtk_nfc_read_subpage()
983 		rc = mtk_ecc_enable(nfc->ecc, &nfc->ecc_cfg);  in mtk_nfc_read_subpage()
985 			dev_err(nfc->dev, "ecc enable\n");  in mtk_nfc_read_subpage()
989 			nfi_writew(nfc, reg, NFI_CNFG);  in mtk_nfc_read_subpage()
990 			dma_unmap_single(nfc->dev, addr, len, DMA_FROM_DEVICE);  in mtk_nfc_read_subpage()
995 		nfi_writew(nfc, reg, NFI_CNFG);  in mtk_nfc_read_subpage()
998 	nfi_writel(nfc, sectors << CON_SEC_SHIFT, NFI_CON);  in mtk_nfc_read_subpage()
999 	nfi_writew(nfc, INTR_AHB_DONE_EN, NFI_INTR_EN);  in mtk_nfc_read_subpage()
1000 	nfi_writel(nfc, lower_32_bits(addr), NFI_STRADDR);  in mtk_nfc_read_subpage()
1002 	init_completion(&nfc->done);  in mtk_nfc_read_subpage()
1003 	reg = nfi_readl(nfc, NFI_CON) | CON_BRD;  in mtk_nfc_read_subpage()
1004 	nfi_writel(nfc, reg, NFI_CON);  in mtk_nfc_read_subpage()
1005 	nfi_writew(nfc, STAR_EN, NFI_STRDATA);  in mtk_nfc_read_subpage()
1007 	rc = wait_for_completion_timeout(&nfc->done, msecs_to_jiffies(500));  in mtk_nfc_read_subpage()
1009 		dev_warn(nfc->dev, "read ahb/dma done timeout\n");  in mtk_nfc_read_subpage()
1011 	rc = readl_poll_timeout_atomic(nfc->regs + NFI_BYTELEN, reg,  in mtk_nfc_read_subpage()
1015 		dev_err(nfc->dev, "subpage done timeout\n");  in mtk_nfc_read_subpage()
1018 		rc = mtk_ecc_wait_done(nfc->ecc, ECC_DECODE);  in mtk_nfc_read_subpage()
1024 	dma_unmap_single(nfc->dev, addr, len, DMA_FROM_DEVICE);  in mtk_nfc_read_subpage()
1029 	mtk_ecc_disable(nfc->ecc);  in mtk_nfc_read_subpage()
1034 	nfi_writel(nfc, 0, NFI_CON);  in mtk_nfc_read_subpage()
1059 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_read_page_raw()  local
1063 	memset(nfc->buffer, 0xff, mtd->writesize + mtd->oobsize);  in mtk_nfc_read_page_raw()
1064 	ret = mtk_nfc_read_subpage(mtd, chip, 0, mtd->writesize, nfc->buffer,  in mtk_nfc_read_page_raw()
1073 			mtk_nand->bad_mark.bm_swap(mtd, nfc->buffer, 1);  in mtk_nfc_read_page_raw()
1088 static inline void mtk_nfc_hw_init(struct mtk_nfc *nfc)  in mtk_nfc_hw_init()  argument
1096 	nfi_writew(nfc, 0xf1, NFI_CNRNB);  in mtk_nfc_hw_init()
1097 	nfi_writel(nfc, PAGEFMT_8K_16K, NFI_PAGEFMT);  in mtk_nfc_hw_init()
1099 	mtk_nfc_hw_reset(nfc);  in mtk_nfc_hw_init()
1101 	nfi_readl(nfc, NFI_INTR_STA);  in mtk_nfc_hw_init()
1102 	nfi_writel(nfc, 0, NFI_INTR_EN);  in mtk_nfc_hw_init()
1107 	struct mtk_nfc *nfc = id;  in mtk_nfc_irq()  local
1110 	sta = nfi_readw(nfc, NFI_INTR_STA);  in mtk_nfc_irq()
1111 	ien = nfi_readw(nfc, NFI_INTR_EN);  in mtk_nfc_irq()
1116 	nfi_writew(nfc, ~sta & ien, NFI_INTR_EN);  in mtk_nfc_irq()
1117 	complete(&nfc->done);  in mtk_nfc_irq()
1193 	struct mtk_nfc *nfc = nand_get_controller_data(nand);  in mtk_nfc_set_fdm()  local
1197 				 mtk_ecc_get_parity_bits(nfc->ecc), 8);  in mtk_nfc_set_fdm()
1224 	struct mtk_nfc *nfc = nand_get_controller_data(nand);  in mtk_nfc_set_spare_per_sector()  local
1225 	const u8 *spare = nfc->caps->spare_size;  in mtk_nfc_set_spare_per_sector()
1237 	for (i = 0; i < nfc->caps->num_spare_size; i++) {  in mtk_nfc_set_spare_per_sector()
1258 	struct mtk_nfc *nfc = nand_get_controller_data(nand);  in mtk_nfc_ecc_init()  local
1280 			    nfc->caps->max_sector_size > 512) {  in mtk_nfc_ecc_init()
1295 		free = (nand->ecc.strength * mtk_ecc_get_parity_bits(nfc->ecc)  in mtk_nfc_ecc_init()
1307 					     mtk_ecc_get_parity_bits(nfc->ecc);  in mtk_nfc_ecc_init()
1311 					     mtk_ecc_get_parity_bits(nfc->ecc);  in mtk_nfc_ecc_init()
1315 	mtk_ecc_adjust_strength(nfc->ecc, &nand->ecc.strength);  in mtk_nfc_ecc_init()
1327 	struct mtk_nfc *nfc = nand_get_controller_data(chip);  in mtk_nfc_attach_chip()  local
1353 	nfc->buffer = devm_kzalloc(dev, len, GFP_KERNEL);  in mtk_nfc_attach_chip()
1354 	if (!nfc->buffer)  in mtk_nfc_attach_chip()
1366 static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc,  in mtk_nfc_nand_chip_init()  argument
1404 		if (test_and_set_bit(tmp, &nfc->assigned_cs)) {  in mtk_nfc_nand_chip_init()
1413 	nand->controller = &nfc->controller;  in mtk_nfc_nand_chip_init()
1416 	nand_set_controller_data(nand, nfc);  in mtk_nfc_nand_chip_init()
1441 	mtk_nfc_hw_init(nfc);  in mtk_nfc_nand_chip_init()
1454 	list_add_tail(&chip->node, &nfc->chips);  in mtk_nfc_nand_chip_init()
1459 static int mtk_nfc_nand_chips_init(struct device *dev, struct mtk_nfc *nfc)  in mtk_nfc_nand_chips_init()  argument
1466 		ret = mtk_nfc_nand_chip_init(dev, nfc, nand_np);  in mtk_nfc_nand_chips_init()
1505 		.compatible = "mediatek,mt2701-nfc",
1508 		.compatible = "mediatek,mt2712-nfc",
1511 		.compatible = "mediatek,mt7622-nfc",
1522 	struct mtk_nfc *nfc;  in mtk_nfc_probe()  local
1525 	nfc = devm_kzalloc(dev, sizeof(*nfc), GFP_KERNEL);  in mtk_nfc_probe()
1526 	if (!nfc)  in mtk_nfc_probe()
1529 	nand_controller_init(&nfc->controller);  in mtk_nfc_probe()
1530 	INIT_LIST_HEAD(&nfc->chips);  in mtk_nfc_probe()
1531 	nfc->controller.ops = &mtk_nfc_controller_ops;  in mtk_nfc_probe()
1534 	nfc->ecc = of_mtk_ecc_get(np);  in mtk_nfc_probe()
1535 	if (IS_ERR(nfc->ecc))  in mtk_nfc_probe()
1536 		return PTR_ERR(nfc->ecc);  in mtk_nfc_probe()
1537 	else if (!nfc->ecc)  in mtk_nfc_probe()
1540 	nfc->caps = of_device_get_match_data(dev);  in mtk_nfc_probe()
1541 	nfc->dev = dev;  in mtk_nfc_probe()
1543 	nfc->regs = devm_platform_ioremap_resource(pdev, 0);  in mtk_nfc_probe()
1544 	if (IS_ERR(nfc->regs)) {  in mtk_nfc_probe()
1545 		ret = PTR_ERR(nfc->regs);  in mtk_nfc_probe()
1549 	nfc->clk.nfi_clk = devm_clk_get(dev, "nfi_clk");  in mtk_nfc_probe()
1550 	if (IS_ERR(nfc->clk.nfi_clk)) {  in mtk_nfc_probe()
1552 		ret = PTR_ERR(nfc->clk.nfi_clk);  in mtk_nfc_probe()
1556 	nfc->clk.pad_clk = devm_clk_get(dev, "pad_clk");  in mtk_nfc_probe()
1557 	if (IS_ERR(nfc->clk.pad_clk)) {  in mtk_nfc_probe()
1559 		ret = PTR_ERR(nfc->clk.pad_clk);  in mtk_nfc_probe()
1563 	ret = mtk_nfc_enable_clk(dev, &nfc->clk);  in mtk_nfc_probe()
1573 	ret = devm_request_irq(dev, irq, mtk_nfc_irq, 0x0, "mtk-nand", nfc);  in mtk_nfc_probe()
1585 	platform_set_drvdata(pdev, nfc);  in mtk_nfc_probe()
1587 	ret = mtk_nfc_nand_chips_init(dev, nfc);  in mtk_nfc_probe()
1596 	mtk_nfc_disable_clk(&nfc->clk);  in mtk_nfc_probe()
1599 	mtk_ecc_release(nfc->ecc);  in mtk_nfc_probe()
1606 	struct mtk_nfc *nfc = platform_get_drvdata(pdev);  in mtk_nfc_remove()  local
1611 	while (!list_empty(&nfc->chips)) {  in mtk_nfc_remove()
1612 		mtk_chip = list_first_entry(&nfc->chips,  in mtk_nfc_remove()
1621 	mtk_ecc_release(nfc->ecc);  in mtk_nfc_remove()
1622 	mtk_nfc_disable_clk(&nfc->clk);  in mtk_nfc_remove()
1630 	struct mtk_nfc *nfc = dev_get_drvdata(dev);  in mtk_nfc_suspend()  local
1632 	mtk_nfc_disable_clk(&nfc->clk);  in mtk_nfc_suspend()
1639 	struct mtk_nfc *nfc = dev_get_drvdata(dev);  in mtk_nfc_resume()  local
1647 	ret = mtk_nfc_enable_clk(dev, &nfc->clk);  in mtk_nfc_resume()
1652 	list_for_each_entry(chip, &nfc->chips, node) {  in mtk_nfc_resume()