From: Irina Tirdea <irina.tirdea@intel.com>
Date: Mon, 13 Apr 2015 15:41:03 +0000 (+0300)
Subject: iio: accel: mma9553: document use of mutex
X-Git-Tag: v4.14-rc1~4839^2~560^2~32
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=23f93cde93efed59ca82d2687a2fab6a93eaafcc;p=platform%2Fkernel%2Flinux-rpi.git

iio: accel: mma9553: document use of mutex

Fix checkpatch.pl --strict check:
CHECK: struct mutex definition without comment
+     struct mutex mutex;

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---

diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index 08f28c3..a605280 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -182,6 +182,10 @@ struct mma9553_conf_regs {
 
 struct mma9553_data {
 	struct i2c_client *client;
+	/*
+	 * 1. Serialize access to HW (requested by mma9551_core API).
+	 * 2. Serialize sequences that power on/off the device and access HW.
+	 */
 	struct mutex mutex;
 	struct mma9553_conf_regs conf;
 	struct mma9553_event events[MMA9553_EVENTS_INFO_SIZE];