[PATCH v3] mtd: spinand: cache the last read page to avoid redundant SPI operations

[Zongzhen Feng]

Hi Miquel,

Thanks for the feedback. I checked the email thread and patchwork, but
couldn't find the Sashiko review comments for v3. The v2 Sashiko
complaints about:

1. Cache not invalidated when databuf is overwritten by non-cacheable
   reads (RAW, continuous, OOB-only)
2. Pages with uncorrectable ECC errors being cached

have already been addressed in v3.

Could you please forward the remaining Sashiko complaints or point me
to where I can find them? I'd like to address them before your human
review.

Thanks,
Zongzhen