From: Michael Hennerich <michael.hennerich@analog.com>
Date: Fri, 29 Apr 2011 12:17:02 +0000 (+0200)
Subject: IIO: GYRO: ADXRS450: enforce sequential transfer delay of at least 0.1ms
X-Git-Url: http://git.mmlx.us/?a=commitdiff_plain;h=8ffc4e72131eb0103abf2be382b56f4fac0123c8;p=linux-edison.git

IIO: GYRO: ADXRS450: enforce sequential transfer delay of at least 0.1ms

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/iio/gyro/adxrs450_core.c b/drivers/staging/iio/gyro/adxrs450_core.c
index 5671276580f..d73acff4384 100644
--- a/drivers/staging/iio/gyro/adxrs450_core.c
+++ b/drivers/staging/iio/gyro/adxrs450_core.c
@@ -116,6 +116,7 @@ static int adxrs450_spi_write_reg_16(struct device *dev,
 	if (ret)
 		dev_err(&st->us->dev, "problem while writing 16 bit register 0x%02x\n",
 				reg_address);
+	msleep(1); /* enforce sequential transfer delay 0.1ms */
 	mutex_unlock(&st->buf_lock);
 	return ret;
 }