mtd: nand: qcom: use ECC according chip spare bytes for non ONFI

The ONFI NAND device specifies the required ECC correction in its
param page but for non ONFI device, we don't have such info.
The QPIC NAND contoller can use 8 bit ECC if the chip has required
number of spare bytes. This patch calculates the minimum required
spare bytes for using 8 bit ECC and select the same, if non ONFI
device has required number of spare bytes otherwise 4 bit ECC
will be used.

Change-Id: If7c718f4288eee16857171335897e3209a05fd0b
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
2 files changed