FROMGIT: Input: elan_i2c - extend Flash-Write delay

The original 20ms delay is only marginally enough delay after a block write
operation during firmware update. Let's increase the delay to ensure that
the controller finishes up storing the page to avoid failures in the
firmware updates.

BUG=b:64703136
TEST=ODM and Elan Try FW update many times in issued system

Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
(cherry picked from commit 05f5c38576475439f3124a3e6d62db68de83f7be
 git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next)

Original-change-Id: Ifc2ed3d68a5adbff174c066ac88fb542e7656e2b
Reviewed-on: https://chromium-review.googlesource.com/690275
Commit-Ready: Caesar Wang <wxt@rock-chips.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
(cherry picked from commit 5ec384ff14ef4998cd6f6dedc0f6c5f3efbdf9ef)
Reviewed-on: https://chromium-review.googlesource.com/720536
Commit-Queue: Caesar Wang <wxt@rock-chips.com>

Change-Id: I800c37c9e0d08d424c24f04e52de72f0056c25df
Reviewed-on: https://chromium-review.googlesource.com/879117
Reviewed-by: Philip Chen <philipchen@chromium.org>
Commit-Queue: Philip Chen <philipchen@chromium.org>
Tested-by: Philip Chen <philipchen@chromium.org>
1 file changed