mtd: nand: complain loudly when chip->bits_per_cell is not correctly initialized

[karo-tx-linux.git] / include / linux / mtd / nand.h

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 892148c448cce2c9c9e9e59b2d44941283635cbd..14761eb01e560100ad19d6e1648632da8e56a782 100644 (file)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -681,10 +681,10 @@ struct nand_buffers {
  * @tWW_min: WP# transition to WE# low
  */
 struct nand_sdr_timings {
-       u32 tBERS_max;
+       u64 tBERS_max;
        u32 tCCS_min;
-       u32 tPROG_max;
-       u32 tR_max;
+       u64 tPROG_max;
+       u64 tR_max;
        u32 tALH_min;
        u32 tADL_min;
        u32 tALS_min;
@@ -1246,6 +1246,8 @@ int onfi_init_data_interface(struct nand_chip *chip,
  */
 static inline bool nand_is_slc(struct nand_chip *chip)
 {
+       WARN(chip->bits_per_cell == 0,
+            "chip->bits_per_cell is used uninitialized\n");
        return chip->bits_per_cell == 1;
 }