tree f946f505c9b5ec34b4543951124cb3d4d2ca2678
parent 918de03aeb9a1f2b5e49a8fe195f8ed7fb5bbc52
author Álvaro Fernández Rojas <noltari@gmail.com> 1516724096 +0100
committer Jagan Teki <jagan@amarulasolutions.com> 1516775623 +0530

drivers: spi: allow limiting reads

For some SPI controllers it's not possible to keep the CS active between
transfers and they are limited to a known number of bytes.
This splits spi_flash reads into different iterations in order to respect
the SPI controller limits.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>