This patch adds the Spreadtrum vibrator driver, which embedded in the
Spreadtrum SC27xx series PMICs.
Signed-off-by: NXiaotong Lu <xiaotong.lu@spreadtrum.com>
Signed-off-by: NBaolin Wang <baolin.wang@linaro.org>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>