`checkpatch.pl` requires that dts sources are indented with tabs,
fix all the spaces that slipped in while checkpatch wasn't watching.
Signed-off-by: Jordan Yates <jordan@embeint.com>
Convert the ht16k33 to use the input subsystem. This can still be used
with the kscan API with the zephyr,kscan-input driver, or use the
input-keymap one to generate input codes instead.
Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>
Convert the keyscan portion of the Holtek HT16K33 driver to adhere to
the kscan API instead of the GPIO API.
When this driver was introduced the kscan API was not present. The
keyscan driver was therefore implemented as a GPIO interrupt driver.
Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
