mirror of https://gitee.com/openkylin/linux.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>
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478d51f021
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bdf3a55501
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@ -299,7 +299,6 @@ static struct fsmc_eccplace fsmc_ecc4_sp_place = {
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*/
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*/
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struct fsmc_nand_data {
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struct fsmc_nand_data {
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u32 pid;
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u32 pid;
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struct mtd_info mtd;
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struct nand_chip nand;
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struct nand_chip nand;
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struct mtd_partition *partitions;
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struct mtd_partition *partitions;
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unsigned int nr_partitions;
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unsigned int nr_partitions;
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@ -328,7 +327,7 @@ struct fsmc_nand_data {
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static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
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static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd)
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{
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{
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return container_of(mtd, struct fsmc_nand_data, mtd);
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return container_of(mtd_to_nand(mtd), struct fsmc_nand_data, nand);
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}
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}
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/* Assert CS signal based on chipnr */
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/* Assert CS signal based on chipnr */
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@ -1008,13 +1007,13 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
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init_completion(&host->dma_access_complete);
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init_completion(&host->dma_access_complete);
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/* Link all private pointers */
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/* Link all private pointers */
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mtd = &host->mtd;
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mtd = nand_to_mtd(&host->nand);
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nand = &host->nand;
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nand = &host->nand;
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mtd->priv = nand;
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mtd->priv = nand;
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nand->priv = host;
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nand->priv = host;
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nand_set_flash_node(nand, np);
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nand_set_flash_node(nand, np);
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host->mtd.dev.parent = &pdev->dev;
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mtd->dev.parent = &pdev->dev;
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nand->IO_ADDR_R = host->data_va;
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nand->IO_ADDR_R = host->data_va;
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nand->IO_ADDR_W = host->data_va;
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nand->IO_ADDR_W = host->data_va;
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nand->cmd_ctrl = fsmc_cmd_ctrl;
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nand->cmd_ctrl = fsmc_cmd_ctrl;
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@ -1077,14 +1076,14 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
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/*
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/*
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* Scan to find existence of the device
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* Scan to find existence of the device
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*/
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*/
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if (nand_scan_ident(&host->mtd, 1, NULL)) {
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if (nand_scan_ident(mtd, 1, NULL)) {
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ret = -ENXIO;
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ret = -ENXIO;
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dev_err(&pdev->dev, "No NAND Device found!\n");
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dev_err(&pdev->dev, "No NAND Device found!\n");
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goto err_scan_ident;
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goto err_scan_ident;
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}
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}
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if (AMBA_REV_BITS(host->pid) >= 8) {
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if (AMBA_REV_BITS(host->pid) >= 8) {
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switch (host->mtd.oobsize) {
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switch (mtd->oobsize) {
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case 16:
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case 16:
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nand->ecc.layout = &fsmc_ecc4_16_layout;
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nand->ecc.layout = &fsmc_ecc4_16_layout;
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host->ecc_place = &fsmc_ecc4_sp_place;
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host->ecc_place = &fsmc_ecc4_sp_place;
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@ -1135,7 +1134,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
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* generated later in nand_bch_init() later.
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* generated later in nand_bch_init() later.
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*/
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*/
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if (nand->ecc.mode != NAND_ECC_SOFT_BCH) {
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if (nand->ecc.mode != NAND_ECC_SOFT_BCH) {
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switch (host->mtd.oobsize) {
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switch (mtd->oobsize) {
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case 16:
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case 16:
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nand->ecc.layout = &fsmc_ecc1_16_layout;
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nand->ecc.layout = &fsmc_ecc1_16_layout;
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break;
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break;
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@ -1156,7 +1155,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
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}
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}
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/* Second stage of scan to fill MTD data-structures */
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/* Second stage of scan to fill MTD data-structures */
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if (nand_scan_tail(&host->mtd)) {
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if (nand_scan_tail(mtd)) {
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ret = -ENXIO;
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ret = -ENXIO;
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goto err_probe;
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goto err_probe;
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}
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}
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@ -1171,9 +1170,8 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
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/*
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/*
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* Check for partition info passed
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* Check for partition info passed
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*/
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*/
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host->mtd.name = "nand";
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mtd->name = "nand";
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ret = mtd_device_register(&host->mtd, host->partitions,
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ret = mtd_device_register(mtd, host->partitions, host->nr_partitions);
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host->nr_partitions);
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if (ret)
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if (ret)
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goto err_probe;
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goto err_probe;
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@ -1203,7 +1201,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
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struct fsmc_nand_data *host = platform_get_drvdata(pdev);
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struct fsmc_nand_data *host = platform_get_drvdata(pdev);
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if (host) {
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if (host) {
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nand_release(&host->mtd);
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nand_release(nand_to_mtd(&host->nand));
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if (host->mode == USE_DMA_ACCESS) {
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if (host->mode == USE_DMA_ACCESS) {
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dma_release_channel(host->write_dma_chan);
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dma_release_channel(host->write_dma_chan);
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