The tablet has a vibrator. Expose it via input subsystem (EV_FF).

Please take a look.

thank you and regards,
  Ondrej Jirman

Ondrej Jirman (4):
  dt-bindings: input: gpio-vibrator: Don't require enable-gpios
  input: gpio-vibra: Allow to use vcc-supply alone to control the
    vibrator
  ARM: dts: sun8i-a83t-tbs-a711: Add support for the vibrator motor
  ARM: dts: sun8i-a83t-tbs-a711: Increase voltage on the vibrator

 .../devicetree/bindings/input/gpio-vibrator.yaml         | 1 -
 arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts                | 9 +++++++--
 drivers/input/misc/gpio-vibra.c                          | 3 ++-
 3 files changed, 9 insertions(+), 4 deletions(-)

-- 
2.25.1


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