From: David Hendricks <dhendrix@chromium.org>
Date: Wed, 30 Apr 2014 17:44:04 +0000 (-0700)
Subject: mfd: cros_ec: spi: Calculate delay between transfers correctly
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~91^2~6^2~14
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fe368665b1499041919d78467147849989af7c9;p=pandora-kernel.git

mfd: cros_ec: spi: Calculate delay between transfers correctly

To avoid spamming the EC we calculate the time between the previous
transfer and the current transfer and force a delay if the time delta
is too small.

However, a small miscalculation causes the delay period to be
far too short. Most noticably this impacts commands with a long
turnaround time such as EC firmware reads and writes.

Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---

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