From: Boris BREZILLON <boris.brezillon@free-electrons.com>
Date: Thu, 10 Dec 2015 08:00:05 +0000 (+0100)
Subject: mtd: nand: fsmc: use the mtd instance embedded in struct nand_chip
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=bdf3a5550152606c7541094e14f892c2f4825856;p=openwrt%2Fstaging%2Fblogic.git

mtd: nand: fsmc: use the mtd instance embedded in struct nand_chip

struct nand_chip now embeds an mtd device. Make use of this mtd instance.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---

diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 499fc5925c23..4c68e7a39b50 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -299,7 +299,6 @@ static struct fsmc_eccplace fsmc_ecc4_sp_place = {
  */
 struct fsmc_nand_data {
 	u32			pid;
-	struct mtd_info		mtd;
 	struct nand_chip	nand;
 	struct mtd_partition	*partitions;
 	unsigned int		nr_partitions;
@@ -328,7 +327,7 @@ struct fsmc_nand_data {
 
 static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
 {
-	return container_of(mtd, struct fsmc_nand_data, mtd);
+	return container_of(mtd_to_nand(mtd), struct fsmc_nand_data, nand);
 }
 
 /* Assert CS signal based on chipnr */
@@ -1008,13 +1007,13 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 		init_completion(&host->dma_access_complete);
 
 	/* Link all private pointers */
-	mtd = &host->mtd;
+	mtd = nand_to_mtd(&host->nand);
 	nand = &host->nand;
 	mtd->priv = nand;
 	nand->priv = host;
 	nand_set_flash_node(nand, np);
 
-	host->mtd.dev.parent = &pdev->dev;
+	mtd->dev.parent = &pdev->dev;
 	nand->IO_ADDR_R = host->data_va;
 	nand->IO_ADDR_W = host->data_va;
 	nand->cmd_ctrl = fsmc_cmd_ctrl;
@@ -1077,14 +1076,14 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	/*
 	 * Scan to find existence of the device
 	 */
-	if (nand_scan_ident(&host->mtd, 1, NULL)) {
+	if (nand_scan_ident(mtd, 1, NULL)) {
 		ret = -ENXIO;
 		dev_err(&pdev->dev, "No NAND Device found!\n");
 		goto err_scan_ident;
 	}
 
 	if (AMBA_REV_BITS(host->pid) >= 8) {
-		switch (host->mtd.oobsize) {
+		switch (mtd->oobsize) {
 		case 16:
 			nand->ecc.layout = &fsmc_ecc4_16_layout;
 			host->ecc_place = &fsmc_ecc4_sp_place;
@@ -1135,7 +1134,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 		 * generated later in nand_bch_init() later.
 		 */
 		if (nand->ecc.mode != NAND_ECC_SOFT_BCH) {
-			switch (host->mtd.oobsize) {
+			switch (mtd->oobsize) {
 			case 16:
 				nand->ecc.layout = &fsmc_ecc1_16_layout;
 				break;
@@ -1156,7 +1155,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	}
 
 	/* Second stage of scan to fill MTD data-structures */
-	if (nand_scan_tail(&host->mtd)) {
+	if (nand_scan_tail(mtd)) {
 		ret = -ENXIO;
 		goto err_probe;
 	}
@@ -1171,9 +1170,8 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
 	/*
 	 * Check for partition info passed
 	 */
-	host->mtd.name = "nand";
-	ret = mtd_device_register(&host->mtd, host->partitions,
-				  host->nr_partitions);
+	mtd->name = "nand";
+	ret = mtd_device_register(mtd, host->partitions, host->nr_partitions);
 	if (ret)
 		goto err_probe;
 
@@ -1203,7 +1201,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
 	struct fsmc_nand_data *host = platform_get_drvdata(pdev);
 
 	if (host) {
-		nand_release(&host->mtd);
+		nand_release(nand_to_mtd(&host->nand));
 
 		if (host->mode == USE_DMA_ACCESS) {
 			dma_release_channel(host->write_dma_chan);