[PATCH 1/2] drm/dbi: Support DBI typec1 read operations

[Noralf Trønnes]

Den 11.06.2021 23.27, skrev Linus Walleij:
> Implement SPI reads for typec1, for SPI controllers that
> can support 9bpw in addition to 8bpw (such as GPIO bit-banged
> SPI).
> 
> 9bpw emulation is not supported but we have to start with
> something.
> 
> This is used by s6e63m0 to read display MTP information
> which is used by the driver for backlight control.
> 
> Cc: Douglas Anderson <dianders at chromium.org>
> Cc: Noralf Trønnes <noralf at tronnes.org>
> Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
> ---

Reviewed-by: Noralf Trønnes <noralf at tronnes.org>