[PATCH RESEND] mtd: nand: allow NAND_NO_SUBPAGE_WRITE to be set from driver

[Marek Vasut]

Dear Brian Norris,

> The NAND_CHIPOPTIONS_MSK has limited utility and is causing real bugs. It
> silently masks off at least one flag that might be set by the driver
> (NAND_NO_SUBPAGE_WRITE). This breaks the GPMI NAND driver and possibly
> others.
> 
> Really, as long as driver writers exercise a small amount of care with
> NAND_* options, this mask is not necessary at all. Thus, kill it.
> 
> From Huang Shijie:
> 
> "I tested this patch on imx6q-arm2 board with Micron MT29F32G08QAA.
> it works fine, thanks."
> 
> Signed-off-by: Brian Norris <computersforpeace at gmail.com>
> Tested-by: Huang Shijie <shijie8 at gmail.com>

Tested-by: Marek Vasut <marex at denx.de>

Sorry for the slow reply. Tested it on denx m28evk board.

> Cc: Marek Vasut <marex at denx.de>
> ---
> Hello Artem/David,
> 
> GPMI NAND has needed this patch for some time, and I think it was agreed
> on by a few. I'm resending to get acknowledgment from a maintainer.

[...]

Best regards,
Marek Vasut