tree 4922e3ceb5f0db0faebc28da7042c47fd26d6457
parent b21ff825d6b7fa7122f9c4455f9a0f157b9fb225
author Masahiro Yamada <yamada.masahiro@socionext.com> 1497361536 +0900
committer Boris Brezillon <boris.brezillon@free-electrons.com> 1497942865 +0200

mtd: nand: denali: remove unneeded find_valid_banks()

The function find_valid_banks() issues the Read ID (0x90) command,
then compares the first byte (Manufacturer ID) of each bank with
the one of bank0.

This is equivalent to what nand_scan_ident() does.  The number of
chips is detected there, so this is unneeded.

What is worse for find_valid_banks() is that, if multiple chips are
connected to INTEL_CE4100 platform, it crashes the kernel by BUG().
This is what we should avoid.  This function is just harmful and
unneeded.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>