mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

12 files changed, 27 insertions, 25 deletions

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 524e6c9e067..04d30887ca7 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -474,7 +474,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
         }
 
         /* first scan to find the device and get the page size */
-        if (nand_scan_ident(mtd, 1)) {
+        if (nand_scan_ident(mtd, 1, NULL)) {
                 res = -ENXIO;
                 goto err_scan_ident;
         }
diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c
index 087bcd745bb..5ff90b7e565 100644
--- a/drivers/mtd/nand/bcm_umi_nand.c
+++ b/drivers/mtd/nand/bcm_umi_nand.c
@@ -446,7 +446,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
          * layout we'll be using.
          */
 
-        err = nand_scan_ident(board_mtd, 1);
+        err = nand_scan_ident(board_mtd, 1, NULL);
         if (err) {
                 printk(KERN_ERR "nand_scan failed: %d\n", err);
                 iounmap(bcm_umi_io_base);
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 67e2b33f7ef..01a6fe1c780 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -761,7 +761,7 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
                 cafe_readl(cafe, GLOBAL_CTRL), cafe_readl(cafe, GLOBAL_IRQ_MASK));
 
         /* Scan to find existence of the device */
-        if (nand_scan_ident(mtd, 2)) {
+        if (nand_scan_ident(mtd, 2, NULL)) {
                 err = -ENXIO;
                 goto out_irq;
         }
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index e2eeaf1e51a..45bb931c084 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -690,7 +690,7 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
         spin_unlock_irq(&davinci_nand_lock);
 
         /* Scan to find existence of the device(s) */
-        ret = nand_scan_ident(&info->mtd, pdata->mask_chipsel ? 2 : 1);
+        ret = nand_scan_ident(&info->mtd, pdata->mask_chipsel ? 2 : 1, NULL);
         if (ret < 0) {
                 dev_dbg(&pdev->dev, "no NAND chip(s) found\n");
                 goto err_scan;
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 1b8328fbb9d..3f38fb8e666 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -891,7 +891,7 @@ static int __devinit fsl_elbc_chip_probe(struct fsl_elbc_ctrl *ctrl,
         if (ret)
                 goto err;
 
-        ret = nand_scan_ident(&priv->mtd, 1);
+        ret = nand_scan_ident(&priv->mtd, 1, NULL);
         if (ret)
                 goto err;
 
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 06cc378196b..474a09e5313 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -819,7 +819,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
         }
 
         /* first scan to find the device and get the page size */
-        if (nand_scan_ident(mtd, 1)) {
+        if (nand_scan_ident(mtd, 1, NULL)) {
                 err = -ENXIO;
                 goto escan;
         }
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ba29a29bd74..1c4823696be 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2766,10 +2766,10 @@ static void nand_set_defaults(struct nand_chip *chip, int busw)
  */
 static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                                                   struct nand_chip *chip,
-                                                  int busw, int *maf_id)
+                                                  int busw, int *maf_id,
+                                                  struct nand_flash_dev *type)
 {
-        struct nand_flash_dev *type = NULL;
-        int i, dev_id, maf_idx;
+        int dev_id, maf_idx;
         int tmp_id, tmp_manf;
 
         /* Select the device */
@@ -2808,15 +2808,14 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                 return ERR_PTR(-ENODEV);
         }
 
-        /* Lookup the flash id */
-        for (i = 0; nand_flash_ids[i].name != NULL; i++) {
-                if (dev_id == nand_flash_ids[i].id) {
-                        type =  &nand_flash_ids[i];
-                        break;
-                }
-        }
-
         if (!type)
+                type = nand_flash_ids;
+
+        for (; type->name != NULL; type++)
+                if (dev_id == type->id)
+                        break;
+
+        if (!type->name)
                 return ERR_PTR(-ENODEV);
 
         if (!mtd->name)
@@ -2926,13 +2925,15 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
  * nand_scan_ident - [NAND Interface] Scan for the NAND device
  * @mtd:             MTD device structure
  * @maxchips:        Number of chips to scan for
+ * @table:           Alternative NAND ID table
  *
  * This is the first phase of the normal nand_scan() function. It
  * reads the flash ID and sets up MTD fields accordingly.
  *
  * The mtd->owner field must be set to the module of the caller.
  */
-int nand_scan_ident(struct mtd_info *mtd, int maxchips)
+int nand_scan_ident(struct mtd_info *mtd, int maxchips,
+                    struct nand_flash_dev *table)
 {
         int i, busw, nand_maf_id;
         struct nand_chip *chip = mtd->priv;
@@ -2944,7 +2945,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips)
         nand_set_defaults(chip, busw);
 
         /* Read the flash type */
-        type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id);
+        type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id, table);
 
         if (IS_ERR(type)) {
                 if (!(chip->options & NAND_SCAN_SILENT_NODEV))
@@ -3235,7 +3236,7 @@ int nand_scan(struct mtd_info *mtd, int maxchips)
                 BUG();
         }
 
-        ret = nand_scan_ident(mtd, maxchips);
+        ret = nand_scan_ident(mtd, maxchips, NULL);
         if (!ret)
                 ret = nand_scan_tail(mtd);
         return ret;
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index c41ad2285c6..dc02dcd0c08 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -1013,7 +1013,8 @@ static int s3c24xx_nand_probe(struct platform_device *pdev)
                 s3c2410_nand_init_chip(info, nmtd, sets);
 
                 nmtd->scan_res = nand_scan_ident(&nmtd->mtd,
-                                                 (sets) ? sets->nr_chips : 1);
+                                                 (sets) ? sets->nr_chips : 1,
+                                                 NULL);
 
                 if (nmtd->scan_res == 0) {
                         s3c2410_nand_update_chip(info, nmtd);
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 4260ab78f95..dbc09a81866 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -825,7 +825,7 @@ static int __init flctl_probe(struct platform_device *pdev)
         nand->select_chip = flctl_select_chip;
         nand->cmdfunc = flctl_cmdfunc;
 
-        ret = nand_scan_ident(flctl_mtd, 1);
+        ret = nand_scan_ident(flctl_mtd, 1, NULL);
         if (ret)
                 goto err;
 
diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c
index 07b6f725723..f52bb394927 100644
--- a/drivers/mtd/nand/sm_common.c
+++ b/drivers/mtd/nand/sm_common.c
@@ -75,7 +75,7 @@ int sm_register_device(struct mtd_info *mtd)
         chip->options |= NAND_SKIP_BBTSCAN | NAND_SMARTMEDIA;
 
         /* Scan for card properties */
-        ret = nand_scan_ident(mtd, 1);
+        ret = nand_scan_ident(mtd, 1, NULL);
 
         if (ret)
                 return ret;
diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index 65748ea2b34..b37cbde6e7d 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -220,7 +220,7 @@ static int __devinit socrates_nand_probe(struct of_device *ofdev,
         dev_set_drvdata(&ofdev->dev, host);
 
         /* first scan to find the device and get the page size */
-        if (nand_scan_ident(mtd, 1)) {
+        if (nand_scan_ident(mtd, 1, NULL)) {
                 res = -ENXIO;
                 goto out;
         }
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index 863513c3b69..054a41c0ef4 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -274,7 +274,7 @@ static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
         struct nand_chip *chip = mtd->priv;
         int ret;
 
-        ret = nand_scan_ident(mtd, 1);
+        ret = nand_scan_ident(mtd, 1, NULL);
         if (!ret) {
                 if (mtd->writesize >= 512) {
                         chip->ecc.size = mtd->writesize;