diff options
Diffstat (limited to 'drivers/mtd')
28 files changed, 140 insertions, 214 deletions
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 4dd3b38ddac0..557bec599f4f 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -291,7 +291,7 @@ config SSFDC config SM_FTL tristate "SmartMedia/xD new translation layer" - depends on EXPERIMENTAL && BLOCK + depends on BLOCK select MTD_BLKDEVS select MTD_NAND_ECC help diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c index 9bcec8f22bbb..63feb75cc8e0 100644 --- a/drivers/mtd/bcm47xxpart.c +++ b/drivers/mtd/bcm47xxpart.c @@ -14,7 +14,7 @@ #include <linux/slab.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> -#include <asm/mach-bcm47xx/nvram.h> +#include <bcm47xx_nvram.h> /* 10 parts were found on sflash on Netgear WNDR4500 */ #define BCM47XXPART_MAX_PARTS 12 diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig index e469b01d40d2..c219e3d098d9 100644 --- a/drivers/mtd/chips/Kconfig +++ b/drivers/mtd/chips/Kconfig @@ -225,7 +225,7 @@ config MTD_ABSENT config MTD_XIP bool "XIP aware MTD support" - depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && EXPERIMENTAL && ARCH_MTD_XIP + depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && ARCH_MTD_XIP default y if XIP_KERNEL help This allows MTD support to work with flash memory which is also diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 46dcb54c32ec..12311f506ca1 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -52,7 +52,7 @@ config MTD_MS02NV config MTD_DATAFLASH tristate "Support for AT45xxx DataFlash" - depends on SPI_MASTER && EXPERIMENTAL + depends on SPI_MASTER help This enables access to AT45xxx DataFlash chips, using SPI. Sometimes DataFlash chips are packaged inside MMC-format @@ -81,7 +81,7 @@ config MTD_DATAFLASH_OTP config MTD_M25P80 tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)" - depends on SPI_MASTER && EXPERIMENTAL + depends on SPI_MASTER help This enables access to most modern SPI flash chips, used for program and data storage. Series supported include Atmel AT26DF, diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c index 2aabd96bf0ff..8a82b8bc21e1 100644 --- a/drivers/mtd/devices/spear_smi.c +++ b/drivers/mtd/devices/spear_smi.c @@ -949,10 +949,9 @@ static int spear_smi_probe(struct platform_device *pdev) smi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0); - dev->io_base = devm_request_and_ioremap(&pdev->dev, smi_base); - if (!dev->io_base) { - ret = -EIO; - dev_err(&pdev->dev, "devm_request_and_ioremap fail\n"); + dev->io_base = devm_ioremap_resource(&pdev->dev, smi_base); + if (IS_ERR(dev->io_base)) { + ret = PTR_ERR(dev->io_base); goto err; } diff --git a/drivers/mtd/maps/autcpu12-nvram.c b/drivers/mtd/maps/autcpu12-nvram.c index a2dc2ae4b24e..c3525d2a2fa8 100644 --- a/drivers/mtd/maps/autcpu12-nvram.c +++ b/drivers/mtd/maps/autcpu12-nvram.c @@ -16,6 +16,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <linux/err.h> #include <linux/sizes.h> #include <linux/types.h> @@ -55,12 +56,10 @@ static int autcpu12_nvram_probe(struct platform_device *pdev) priv->map.bankwidth = 4; priv->map.phys = res->start; priv->map.size = resource_size(res); - priv->map.virt = devm_request_and_ioremap(&pdev->dev, res); + priv->map.virt = devm_ioremap_resource(&pdev->dev, res); strcpy((char *)priv->map.name, res->name); - if (!priv->map.virt) { - dev_err(&pdev->dev, "failed to remap mem resource\n"); - return -EBUSY; - } + if (IS_ERR(priv->map.virt)) + return PTR_ERR(priv->map.virt); simple_map_init(&priv->map); diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index 3c3c791eb96a..d1da6ede3845 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -7,6 +7,7 @@ * Copyright (C) 2010 John Crispin <blogic@openwrt.org> */ +#include <linux/err.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> @@ -136,10 +137,9 @@ ltq_mtd_probe(struct platform_device *pdev) ltq_mtd->map = kzalloc(sizeof(struct map_info), GFP_KERNEL); ltq_mtd->map->phys = ltq_mtd->res->start; ltq_mtd->map->size = resource_size(ltq_mtd->res); - ltq_mtd->map->virt = devm_request_and_ioremap(&pdev->dev, ltq_mtd->res); - if (!ltq_mtd->map->virt) { - dev_err(&pdev->dev, "failed to remap mem resource\n"); - err = -EBUSY; + ltq_mtd->map->virt = devm_ioremap_resource(&pdev->dev, ltq_mtd->res); + if (IS_ERR(ltq_mtd->map->virt)) { + err = PTR_ERR(ltq_mtd->map->virt); goto err_out; } diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index 500d7f4f8028..363939dfad05 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -167,7 +167,7 @@ static int of_flash_probe(struct platform_device *dev) resource_size_t res_size; struct mtd_part_parser_data ppdata; bool map_indirect; - const char *mtd_name; + const char *mtd_name = NULL; match = of_match_device(of_flash_match, &dev->dev); if (!match) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index ec794a72975d..61d5f56473e1 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -349,13 +349,8 @@ int add_mtd_device(struct mtd_info *mtd) BUG_ON(mtd->writesize == 0); mutex_lock(&mtd_table_mutex); - do { - if (!idr_pre_get(&mtd_idr, GFP_KERNEL)) - goto fail_locked; - error = idr_get_new(&mtd_idr, mtd, &i); - } while (error == -EAGAIN); - - if (error) + i = idr_alloc(&mtd_idr, mtd, 0, 0, GFP_KERNEL); + if (i < 0) goto fail_locked; mtd->index = i; diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 5819eb575210..81bf5e52601e 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -260,8 +260,7 @@ config MTD_NAND_S3C2410_CLKSTOP approximately 5mA of power when there is nothing happening. config MTD_NAND_DISKONCHIP - tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation) (EXPERIMENTAL)" - depends on EXPERIMENTAL + tristate "DiskOnChip 2000, Millennium and Millennium Plus (NAND reimplementation)" depends on HAS_IOMEM select REED_SOLOMON select REED_SOLOMON_DEC16 @@ -331,8 +330,8 @@ config MTD_NAND_DISKONCHIP_BBTWRITE parameter "inftl_bbt_write=1". config MTD_NAND_DOCG4 - tristate "Support for DiskOnChip G4 (EXPERIMENTAL)" - depends on EXPERIMENTAL && HAS_IOMEM + tristate "Support for DiskOnChip G4" + depends on HAS_IOMEM select BCH select BITREVERSE help diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index 37d5b8956694..b2ab373c9eef 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -17,8 +17,8 @@ #include <linux/bcma/bcma.h> /* Broadcom uses 1'000'000 but it seems to be too many. Tests on WNDR4500 has - * shown 164 retries as maxiumum. */ -#define NFLASH_READY_RETRIES 1000 + * shown ~1000 retries as maxiumum. */ +#define NFLASH_READY_RETRIES 10000 #define NFLASH_SECTOR_SIZE 512 diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 67e62d3d495c..05ba3f0c2d19 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -573,23 +573,22 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len, dma_dev = chan->device; dma_addr = dma_map_single(dma_dev->dev, buffer, len, direction); + flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP; + if (direction == DMA_TO_DEVICE) { dma_src = dma_addr; dma_dst = host->data_pa; - flags |= DMA_COMPL_SRC_UNMAP_SINGLE | DMA_COMPL_SKIP_DEST_UNMAP; } else { dma_src = host->data_pa; dma_dst = dma_addr; - flags |= DMA_COMPL_DEST_UNMAP_SINGLE | DMA_COMPL_SKIP_SRC_UNMAP; } tx = dma_dev->device_prep_dma_memcpy(chan, dma_dst, dma_src, len, flags); - if (!tx) { dev_err(host->dev, "device_prep_dma_memcpy error\n"); - dma_unmap_single(dma_dev->dev, dma_addr, len, direction); - return -EIO; + ret = -EIO; + goto unmap_dma; } tx->callback = dma_complete; @@ -599,7 +598,7 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len, ret = dma_submit_error(cookie); if (ret) { dev_err(host->dev, "dma_submit_error %d\n", cookie); - return ret; + goto unmap_dma; } dma_async_issue_pending(chan); @@ -610,10 +609,17 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len, if (ret <= 0) { chan->device->device_control(chan, DMA_TERMINATE_ALL, 0); dev_err(host->dev, "wait_for_completion_timeout\n"); - return ret ? ret : -ETIMEDOUT; + if (!ret) + ret = -ETIMEDOUT; + goto unmap_dma; } - return 0; + ret = 0; + +unmap_dma: + dma_unmap_single(dma_dev->dev, dma_addr, len, direction); + + return ret; } /* @@ -937,42 +943,35 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) if (!res) return -EINVAL; - host->data_va = devm_request_and_ioremap(&pdev->dev, res); - if (!host->data_va) { - dev_err(&pdev->dev, "data ioremap failed\n"); - return -ENOMEM; - } + host->data_va = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(host->data_va)) + return PTR_ERR(host->data_va); + host->data_pa = (dma_addr_t)res->start; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr"); if (!res) return -EINVAL; - host->addr_va = devm_request_and_ioremap(&pdev->dev, res); - if (!host->addr_va) { - dev_err(&pdev->dev, "ale ioremap failed\n"); - return -ENOMEM; - } + host->addr_va = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(host->addr_va)) + return PTR_ERR(host->addr_va); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd"); if (!res) return -EINVAL; - host->cmd_va = devm_request_and_ioremap(&pdev->dev, res); - if (!host->cmd_va) { - dev_err(&pdev->dev, "ale ioremap failed\n"); - return -ENOMEM; - } + host->cmd_va = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(host->cmd_va)) + return PTR_ERR(host->cmd_va); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fsmc_regs"); if (!res) return -EINVAL; - host->regs_va = devm_request_and_ioremap(&pdev->dev, res); - if (!host->regs_va) { - dev_err(&pdev->dev, "regs ioremap failed\n"); - return -ENOMEM; - } + host->regs_va = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(host->regs_va)) + return PTR_ERR(host->regs_va); host->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(host->clk)) { @@ -1218,6 +1217,7 @@ static SIMPLE_DEV_PM_OPS(fsmc_nand_pm_ops, fsmc_nand_suspend, fsmc_nand_resume); #ifdef CONFIG_OF static const struct of_device_id fsmc_nand_id_table[] = { { .compatible = "st,spear600-fsmc-nand" }, + { .compatible = "stericsson,fsmc-nand" }, {} }; MODULE_DEVICE_TABLE(of, fsmc_nand_id_table); diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index f182befa7360..0ca22ae9135c 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -677,11 +677,10 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) return -ENXIO; } - host->io_base = devm_request_and_ioremap(&pdev->dev, rc); - if (host->io_base == NULL) { - dev_err(&pdev->dev, "ioremap failed\n"); - return -EIO; - } + host->io_base = devm_ioremap_resource(&pdev->dev, rc); + if (IS_ERR(host->io_base)) + return PTR_ERR(host->io_base); + host->io_base_phy = rc->start; mtd = &host->mtd; diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 030b78c62895..be94ed5abefb 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -778,11 +778,9 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) } host->io_base_dma = rc->start; - host->io_base = devm_request_and_ioremap(&pdev->dev, rc); - if (host->io_base == NULL) { - dev_err(&pdev->dev, "ioremap failed\n"); - return -ENOMEM; - } + host->io_base = devm_ioremap_resource(&pdev->dev, rc); + if (IS_ERR(host->io_base)) + return PTR_ERR(host->io_base); if (pdev->dev.of_node) host->ncfg = lpc32xx_parse_dt(&pdev->dev); diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 20e1241bd099..07e5784e5cd3 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1448,9 +1448,9 @@ static int mxcnd_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) return -ENODEV; - host->regs_ip = devm_request_and_ioremap(&pdev->dev, res); - if (!host->regs_ip) - return -ENOMEM; + host->regs_ip = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(host->regs_ip)) + return PTR_ERR(host->regs_ip); res = platform_get_resource(pdev, IORESOURCE_MEM, 1); } else { @@ -1460,9 +1460,9 @@ static int mxcnd_probe(struct platform_device *pdev) if (!res) return -ENODEV; - host->base = devm_request_and_ioremap(&pdev->dev, res); - if (!host->base) - return -ENOMEM; + host->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(host->base)) + return PTR_ERR(host->base); host->main_area0 = host->base; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index a8c1fb475fa6..43214151b882 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2853,8 +2853,11 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int i; int val; - /* ONFI need to be probed in 8 bits mode */ - WARN_ON(chip->options & NAND_BUSWIDTH_16); + /* ONFI need to be probed in 8 bits mode, and 16 bits should be selected with NAND_BUSWIDTH_AUTO */ + if (chip->options & NAND_BUSWIDTH_16) { + pr_err("Trying ONFI probe in 16 bits mode, aborting !\n"); + return 0; + } /* Try ONFI for unknown chip or LP */ chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 4c317982fce5..891c52a30e6a 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -1408,40 +1408,32 @@ static void clear_memalloc(int memalloc) current->flags &= ~PF_MEMALLOC; } -static ssize_t read_file(struct nandsim *ns, struct file *file, void *buf, size_t count, loff_t *pos) +static ssize_t read_file(struct nandsim *ns, struct file *file, void *buf, size_t count, loff_t pos) { - mm_segment_t old_fs; ssize_t tx; int err, memalloc; - err = get_pages(ns, file, count, *pos); + err = get_pages(ns, file, count, pos); if (err) return err; - old_fs = get_fs(); - set_fs(get_ds()); memalloc = set_memalloc(); - tx = vfs_read(file, (char __user *)buf, count, pos); + tx = kernel_read(file, pos, buf, count); clear_memalloc(memalloc); - set_fs(old_fs); put_pages(ns); return tx; } -static ssize_t write_file(struct nandsim *ns, struct file *file, void *buf, size_t count, loff_t *pos) +static ssize_t write_file(struct nandsim *ns, struct file *file, void *buf, size_t count, loff_t pos) { - mm_segment_t old_fs; ssize_t tx; int err, memalloc; - err = get_pages(ns, file, count, *pos); + err = get_pages(ns, file, count, pos); if (err) return err; - old_fs = get_fs(); - set_fs(get_ds()); memalloc = set_memalloc(); - tx = vfs_write(file, (char __user *)buf, count, pos); + tx = kernel_write(file, buf, count, pos); clear_memalloc(memalloc); - set_fs(old_fs); put_pages(ns); return tx; } @@ -1511,7 +1503,7 @@ static void read_page(struct nandsim *ns, int num) if (do_read_error(ns, num)) return; pos = (loff_t)ns->regs.row * ns->geom.pgszoob + ns->regs.column + ns->regs.off; - tx = read_file(ns, ns->cfile, ns->buf.byte, num, &pos); + tx = read_file(ns, ns->cfile, ns->buf.byte, num, pos); if (tx != num) { NS_ERR("read_page: read error for page %d ret %ld\n", ns->regs.row, (long)tx); return; @@ -1573,7 +1565,7 @@ static int prog_page(struct nandsim *ns, int num) u_char *pg_off; if (ns->cfile) { - loff_t off, pos; + loff_t off; ssize_t tx; int all; @@ -1585,8 +1577,7 @@ static int prog_page(struct nandsim *ns, int num) memset(ns->file_buf, 0xff, ns->geom.pgszoob); } else { all = 0; - pos = off; - tx = read_file(ns, ns->cfile, pg_off, num, &pos); + tx = read_file(ns, ns->cfile, pg_off, num, off); if (tx != num) { NS_ERR("prog_page: read error for page %d ret %ld\n", ns->regs.row, (long)tx); return -1; @@ -1595,16 +1586,15 @@ static int prog_page(struct nandsim *ns, int num) for (i = 0; i < num; i++) pg_off[i] &= ns->buf.byte[i]; if (all) { - pos = (loff_t)ns->regs.row * ns->geom.pgszoob; - tx = write_file(ns, ns->cfile, ns->file_buf, ns->geom.pgszoob, &pos); + loff_t pos = (loff_t)ns->regs.row * ns->geom.pgszoob; + tx = write_file(ns, ns->cfile, ns->file_buf, ns->geom.pgszoob, pos); if (tx != ns->geom.pgszoob) { NS_ERR("prog_page: write error for page %d ret %ld\n", ns->regs.row, (long)tx); return -1; } ns->pages_written[ns->regs.row] = 1; } else { - pos = off; - tx = write_file(ns, ns->cfile, pg_off, num, &pos); + tx = write_file(ns, ns->cfile, pg_off, num, off); if (tx != num) { NS_ERR("prog_page: write error for page %d ret %ld\n", ns->regs.row, (long)tx); return -1; diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 1a88bd062ac1..8e820ddf4e08 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -1828,6 +1828,7 @@ static int omap_nand_probe(struct platform_device *pdev) dma_cap_mask_t mask; unsigned sig; struct resource *res; + struct mtd_part_parser_data ppdata = {}; pdata = pdev->dev.platform_data; if (pdata == NULL) { @@ -2056,7 +2057,8 @@ static int omap_nand_probe(struct platform_device *pdev) goto out_release_mem_region; } - mtd_device_parse_register(&info->mtd, NULL, NULL, pdata->parts, + ppdata.of_node = pdata->of_node; + mtd_device_parse_register(&info->mtd, NULL, &ppdata, pdata->parts, pdata->nr_parts); platform_set_drvdata(pdev, &info->mtd); diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index df954b4dcba2..d65afd23e171 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -952,10 +952,9 @@ static int s3c24xx_nand_probe(struct platform_device *pdev) info->platform = plat; info->cpu_type = cpu_type; - info->regs = devm_request_and_ioremap(&pdev->dev, res); - if (info->regs == NULL) { - dev_err(&pdev->dev, "cannot reserve register region\n"); - err = -EIO; + info->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(info->regs)) { + err = PTR_ERR(info->regs); goto exit_error; } diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index e3d7266e256f..e1e8748aa47b 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -9,6 +9,7 @@ * (C) Copyright TOSHIBA CORPORATION 2004-2007 * All Rights Reserved. */ +#include <linux/err.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> @@ -286,9 +287,9 @@ static int __init txx9ndfmc_probe(struct platform_device *dev) drvdata = devm_kzalloc(&dev->dev, sizeof(*drvdata), GFP_KERNEL); if (!drvdata) return -ENOMEM; - drvdata->base = devm_request_and_ioremap(&dev->dev, res); - if (!drvdata->base) - return -EBUSY; + drvdata->base = devm_ioremap_resource(&dev->dev, res); + if (IS_ERR(drvdata->base)) + return PTR_ERR(drvdata->base); hold = plat->hold ?: 20; /* tDH */ spw = plat->spw ?: 90; /* max(tREADID, tWP, tRP) */ diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 065f3fe02a2f..eec2aedb4ab8 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -637,6 +637,7 @@ static int omap2_onenand_probe(struct platform_device *pdev) struct onenand_chip *this; int r; struct resource *res; + struct mtd_part_parser_data ppdata = {}; pdata = pdev->dev.platform_data; if (pdata == NULL) { @@ -767,7 +768,8 @@ static int omap2_onenand_probe(struct platform_device *pdev) if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_regulator; - r = mtd_device_parse_register(&c->mtd, NULL, NULL, + ppdata.of_node = pdata->of_node; + r = mtd_device_parse_register(&c->mtd, NULL, &ppdata, pdata ? pdata->parts : NULL, pdata ? pdata->nr_parts : 0); if (r) diff --git a/drivers/mtd/tests/mtd_nandecctest.c b/drivers/mtd/tests/mtd_nandecctest.c index 5015d10591d9..70106607c247 100644 --- a/drivers/mtd/tests/mtd_nandecctest.c +++ b/drivers/mtd/tests/mtd_nandecctest.c @@ -256,7 +256,7 @@ static int nand_ecc_test_run(const size_t size) goto error; } - get_random_bytes(correct_data, size); + prandom_bytes(correct_data, size); __nand_calculate_ecc(correct_data, size, correct_ecc); for (i = 0; i < ARRAY_SIZE(nand_ecc_test); i++) { diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c index e827fa8cd844..3e24b379ffa4 100644 --- a/drivers/mtd/tests/mtd_oobtest.c +++ b/drivers/mtd/tests/mtd_oobtest.c @@ -29,6 +29,7 @@ #include <linux/mtd/mtd.h> #include <linux/slab.h> #include <linux/sched.h> +#include <linux/random.h> static int dev = -EINVAL; module_param(dev, int, S_IRUGO); @@ -46,26 +47,7 @@ static int use_offset; static int use_len; static int use_len_max; static int vary_offset; -static unsigned long next = 1; - -static inline unsigned int simple_rand(void) -{ - next = next * 1103515245 + 12345; - return (unsigned int)((next / 65536) % 32768); -} - -static inline void simple_srand(unsigned long seed) -{ - next = seed; -} - -static void set_random_data(unsigned char *buf, size_t len) -{ - size_t i; - - for (i = 0; i < len; ++i) - buf[i] = simple_rand(); -} +static struct rnd_state rnd_state; static int erase_eraseblock(int ebnum) { @@ -129,7 +111,7 @@ static int write_eraseblock(int ebnum) loff_t addr = ebnum * mtd->erasesize; for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) { - set_random_data(writebuf, use_len); + prandom_bytes_state(&rnd_state, writebuf, use_len); ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; @@ -182,7 +164,7 @@ static int verify_eraseblock(int ebnum) loff_t addr = ebnum * mtd->erasesize; for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) { - set_random_data(writebuf, use_len); + prandom_bytes_state(&rnd_state, writebuf, use_len); ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; @@ -273,7 +255,7 @@ static int verify_eraseblock_in_one_go(int ebnum) loff_t addr = ebnum * mtd->erasesize; size_t len = mtd->ecclayout->oobavail * pgcnt; - set_random_data(writebuf, len); + prandom_bytes_state(&rnd_state, writebuf, len); ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; @@ -424,12 +406,12 @@ static int __init mtd_oobtest_init(void) if (err) goto out; - simple_srand(1); + prandom_seed_state(&rnd_state, 1); err = write_whole_device(); if (err) goto out; - simple_srand(1); + prandom_seed_state(&rnd_state, 1); err = verify_all_eraseblocks(); if (err) goto out; @@ -444,13 +426,13 @@ static int __init mtd_oobtest_init(void) if (err) goto out; - simple_srand(3); + prandom_seed_state(&rnd_state, 3); err = write_whole_device(); if (err) goto out; /* Check all eraseblocks */ - simple_srand(3); + prandom_seed_state(&rnd_state, 3); pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -479,7 +461,7 @@ static int __init mtd_oobtest_init(void) use_len = mtd->ecclayout->oobavail; use_len_max = mtd->ecclayout->oobavail; vary_offset = 1; - simple_srand(5); + prandom_seed_state(&rnd_state, 5); err = write_whole_device(); if (err) @@ -490,7 +472,7 @@ static int __init mtd_oobtest_init(void) use_len = mtd->ecclayout->oobavail; use_len_max = mtd->ecclayout->oobavail; vary_offset = 1; - simple_srand(5); + prandom_seed_state(&rnd_state, 5); err = verify_all_eraseblocks(); if (err) goto out; @@ -649,7 +631,7 @@ static int __init mtd_oobtest_init(void) goto out; /* Write all eraseblocks */ - simple_srand(11); + prandom_seed_state(&rnd_state, 11); pr_info("writing OOBs of whole device\n"); for (i = 0; i < ebcnt - 1; ++i) { int cnt = 2; @@ -659,7 +641,7 @@ static int __init mtd_oobtest_init(void) continue; addr = (i + 1) * mtd->erasesize - mtd->writesize; for (pg = 0; pg < cnt; ++pg) { - set_random_data(writebuf, sz); + prandom_bytes_state(&rnd_state, writebuf, sz); ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; @@ -680,12 +662,13 @@ static int __init mtd_oobtest_init(void) pr_info("written %u eraseblocks\n", i); /* Check all eraseblocks */ - simple_srand(11); + prandom_seed_state(&rnd_state, 11); pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt - 1; ++i) { if (bbt[i] || bbt[i + 1]) continue; - set_random_data(writebuf, mtd->ecclayout->oobavail * 2); + prandom_bytes_state(&rnd_state, writebuf, + mtd->ecclayout->oobavail * 2); addr = (i + 1) * mtd->erasesize - mtd->writesize; ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c index f93a76f88113..0c1140b6c286 100644 --- a/drivers/mtd/tests/mtd_pagetest.c +++ b/drivers/mtd/tests/mtd_pagetest.c @@ -29,6 +29,7 @@ #include <linux/mtd/mtd.h> #include <linux/slab.h> #include <linux/sched.h> +#include <linux/random.h> static int dev = -EINVAL; module_param(dev, int, S_IRUGO); @@ -45,26 +46,7 @@ static int bufsize; static int ebcnt; static int pgcnt; static int errcnt; -static unsigned long next = 1; - -static inline unsigned int simple_rand(void) -{ - next = next * 1103515245 + 12345; - return (unsigned int)((next / 65536) % 32768); -} - -static inline void simple_srand(unsigned long seed) -{ - next = seed; -} - -static void set_random_data(unsigned char *buf, size_t len) -{ - size_t i; - - for (i = 0; i < len; ++i) - buf[i] = simple_rand(); -} +static struct rnd_state rnd_state; static int erase_eraseblock(int ebnum) { @@ -98,7 +80,7 @@ static int write_eraseblock(int ebnum) size_t written; loff_t addr = ebnum * mtd->erasesize; - set_random_data(writebuf, mtd->erasesize); + prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); cond_resched(); err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf); if (err || written != mtd->erasesize) @@ -124,7 +106,7 @@ static int verify_eraseblock(int ebnum) for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i) addrn -= mtd->erasesize; - set_random_data(writebuf, mtd->erasesize); + prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) { /* Do a read to set the internal dataRAMs to different data */ err = mtd_read(mtd, addr0, bufsize, &read, twopages); @@ -160,7 +142,8 @@ static int verify_eraseblock(int ebnum) } /* Check boundary between eraseblocks */ if (addr <= addrn - pgsize - pgsize && !bbt[ebnum + 1]) { - unsigned long oldnext = next; + struct rnd_state old_state = rnd_state; + /* Do a read to set the internal dataRAMs to different data */ err = mtd_read(mtd, addr0, bufsize, &read, twopages); if (mtd_is_bitflip(err)) @@ -188,13 +171,13 @@ static int verify_eraseblock(int ebnum) return err; } memcpy(boundary, writebuf + mtd->erasesize - pgsize, pgsize); - set_random_data(boundary + pgsize, pgsize); + prandom_bytes_state(&rnd_state, boundary + pgsize, pgsize); if (memcmp(twopages, boundary, bufsize)) { pr_err("error: verify failed at %#llx\n", (long long)addr); errcnt += 1; } - next = oldnext; + rnd_state = old_state; } return err; } @@ -326,7 +309,7 @@ static int erasecrosstest(void) return err; pr_info("writing 1st page of block %d\n", ebnum); - set_random_data(writebuf, pgsize); + prandom_bytes_state(&rnd_state, writebuf, pgsize); strcpy(writebuf, "There is no data like this!"); err = mtd_write(mtd, addr0, pgsize, &written, writebuf); if (err || written != pgsize) { @@ -359,7 +342,7 @@ static int erasecrosstest(void) return err; pr_info("writing 1st page of block %d\n", ebnum); - set_random_data(writebuf, pgsize); + prandom_bytes_state(&rnd_state, writebuf, pgsize); strcpy(writebuf, "There is no data like this!"); err = mtd_write(mtd, addr0, pgsize, &written, writebuf); if (err || written != pgsize) { @@ -417,7 +400,7 @@ static int erasetest(void) return err; pr_info("writing 1st page of block %d\n", ebnum); - set_random_data(writebuf, pgsize); + prandom_bytes_state(&rnd_state, writebuf, pgsize); err = mtd_write(mtd, addr0, pgsize, &written, writebuf); if (err || written != pgsize) { pr_err("error: write failed at %#llx\n", @@ -565,7 +548,7 @@ static int __init mtd_pagetest_init(void) pr_info("erased %u eraseblocks\n", i); /* Write all eraseblocks */ - simple_srand(1); + prandom_seed_state(&rnd_state, 1); pr_info("writing whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -580,7 +563,7 @@ static int __init mtd_pagetest_init(void) pr_info("written %u eraseblocks\n", i); /* Check all eraseblocks */ - simple_srand(1); + prandom_seed_state(&rnd_state, 1); pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 596cbea8df4c..a6ce9c1fa6c5 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -49,13 +49,6 @@ static int pgcnt; static int goodebcnt; static struct timeval start, finish; -static void set_random_data(unsigned char *buf, size_t len) -{ - size_t i; - - for (i = 0; i < len; ++i) - buf[i] = random32(); -} static int erase_eraseblock(int ebnum) { @@ -396,7 +389,7 @@ static int __init mtd_speedtest_init(void) goto out; } - set_random_data(iobuf, mtd->erasesize); + prandom_bytes(iobuf, mtd->erasesize); err = scan_for_bad_eraseblocks(); if (err) diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c index 1d29739db916..787f539d16ca 100644 --- a/drivers/mtd/tests/mtd_stresstest.c +++ b/drivers/mtd/tests/mtd_stresstest.c @@ -282,8 +282,7 @@ static int __init mtd_stresstest_init(void) } for (i = 0; i < ebcnt; i++) offsets[i] = mtd->erasesize; - for (i = 0; i < bufsize; i++) - writebuf[i] = random32(); + prandom_bytes(writebuf, bufsize); err = scan_for_bad_eraseblocks(); if (err) diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c index c880c2229c59..aade56f27945 100644 --- a/drivers/mtd/tests/mtd_subpagetest.c +++ b/drivers/mtd/tests/mtd_subpagetest.c @@ -28,6 +28,7 @@ #include <linux/mtd/mtd.h> #include <linux/slab.h> #include <linux/sched.h> +#include <linux/random.h> static int dev = -EINVAL; module_param(dev, int, S_IRUGO); @@ -43,26 +44,7 @@ static int bufsize; static int ebcnt; static int pgcnt; static int errcnt; -static unsigned long next = 1; - -static inline unsigned int simple_rand(void) -{ - next = next * 1103515245 + 12345; - return (unsigned int)((next / 65536) % 32768); -} - -static inline void simple_srand(unsigned long seed) -{ - next = seed; -} - -static void set_random_data(unsigned char *buf, size_t len) -{ - size_t i; - - for (i = 0; i < len; ++i) - buf[i] = simple_rand(); -} +static struct rnd_state rnd_state; static inline void clear_data(unsigned char *buf, size_t len) { @@ -119,7 +101,7 @@ static int write_eraseblock(int ebnum) int err = 0; loff_t addr = ebnum * mtd->erasesize; - set_random_data(writebuf, subpgsize); + prandom_bytes_state(&rnd_state, writebuf, subpgsize); err = mtd_write(mtd, addr, subpgsize, &written, writebuf); if (unlikely(err || written != subpgsize)) { pr_err("error: write failed at %#llx\n", @@ -133,7 +115,7 @@ static int write_eraseblock(int ebnum) addr += subpgsize; - set_random_data(writebuf, subpgsize); + prandom_bytes_state(&rnd_state, writebuf, subpgsize); err = mtd_write(mtd, addr, subpgsize, &written, writebuf); if (unlikely(err || written != subpgsize)) { pr_err("error: write failed at %#llx\n", @@ -157,7 +139,7 @@ static int write_eraseblock2(int ebnum) for (k = 1; k < 33; ++k) { if (addr + (subpgsize * k) > (ebnum + 1) * mtd->erasesize) break; - set_random_data(writebuf, subpgsize * k); + prandom_bytes_state(&rnd_state, writebuf, subpgsize * k); err = mtd_write(mtd, addr, subpgsize * k, &written, writebuf); if (unlikely(err || written != subpgsize * k)) { pr_err("error: write failed at %#llx\n", @@ -193,7 +175,7 @@ static int verify_eraseblock(int ebnum) int err = 0; loff_t addr = ebnum * mtd->erasesize; - set_random_data(writebuf, subpgsize); + prandom_bytes_state(&rnd_state, writebuf, subpgsize); clear_data(readbuf, subpgsize); err = mtd_read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { @@ -220,7 +202,7 @@ static int verify_eraseblock(int ebnum) addr += subpgsize; - set_random_data(writebuf, subpgsize); + prandom_bytes_state(&rnd_state, writebuf, subpgsize); clear_data(readbuf, subpgsize); err = mtd_read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { @@ -257,7 +239,7 @@ static int verify_eraseblock2(int ebnum) for (k = 1; k < 33; ++k) { if (addr + (subpgsize * k) > (ebnum + 1) * mtd->erasesize) break; - set_random_data(writebuf, subpgsize * k); + prandom_bytes_state(&rnd_state, writebuf, subpgsize * k); clear_data(readbuf, subpgsize * k); err = mtd_read(mtd, addr, subpgsize * k, &read, readbuf); if (unlikely(err || read != subpgsize * k)) { @@ -430,7 +412,7 @@ static int __init mtd_subpagetest_init(void) goto out; pr_info("writing whole device\n"); - simple_srand(1); + prandom_seed_state(&rnd_state, 1); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) continue; @@ -443,7 +425,7 @@ static int __init mtd_subpagetest_init(void) } pr_info("written %u eraseblocks\n", i); - simple_srand(1); + prandom_seed_state(&rnd_state, 1); pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -466,7 +448,7 @@ static int __init mtd_subpagetest_init(void) goto out; /* Write all eraseblocks */ - simple_srand(3); + prandom_seed_state(&rnd_state, 3); pr_info("writing whole device\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) @@ -481,7 +463,7 @@ static int __init mtd_subpagetest_init(void) pr_info("written %u eraseblocks\n", i); /* Check all eraseblocks */ - simple_srand(3); + prandom_seed_state(&rnd_state, 3); pr_info("verifying all eraseblocks\n"); for (i = 0; i < ebcnt; ++i) { if (bbt[i]) diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index dfcc65b33e99..4f02848bb2bc 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -194,7 +194,7 @@ static int vol_cdev_fsync(struct file *file, loff_t start, loff_t end, { struct ubi_volume_desc *desc = file->private_data; struct ubi_device *ubi = desc->vol->ubi; - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = file_inode(file); int err; mutex_lock(&inode->i_mutex); err = ubi_sync(ubi->ubi_num); |