On Mon, Sep 10, 2018 at 12:55 AM Janusz Krzysztofik [off-list ref] wrote:

Now as Amstrad Delta board - the only user of this driver - provides
GPIO lookup tables, switch from GPIO numbers to GPIO descriptors and
use the table to locate required GPIO pins.

Declare static variables for storing GPIO descriptors and replace
gpio_ function calls with their gpiod_ equivalents. Move GPIO lookup
to the driver probe function so device initialization can be deferred
instead of aborted if a GPIO pin is not yet available.

Pin naming used by the driver should be followed while respective GPIO
lookup table is initialized by a board init code.

Cc: Bartlomiej Zolnierkiewicz <redacted>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>

Good work as usual:
Reviewed-by: Linus Walleij <redacted>

FWIW I think the entire drivers/video/fbdev/omap/*
could be pretty easy to migrate to DRM if you compare
the simple drivers/gpu/drm/pl111 or drivers/gpu/drm/tve200
drivers. Just inspiration! :)

Yours,
Linus Walleij