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authorDaniel Baluta <daniel.baluta@intel.com>2015-06-05 14:03:13 +0300
committerJonathan Cameron <jic23@kernel.org>2015-06-07 16:33:20 +0100
commit787f55c4d1842e5fb037a81bca9bd9d9fdfd46fe (patch)
treea6428900a2ca5898a257b2880a0755601f95d643 /drivers/iio
parentc2890547a035e019df646be5d56adc0ee1b0a327 (diff)
downloadop-kernel-dev-787f55c4d1842e5fb037a81bca9bd9d9fdfd46fe.zip
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iio: magnetometer: mmc35240: Use a smaller sleep value
According to datasheet, Page 8, minimum wait time to complete measurement is 10ms. Adjusting this value will increase the userspace polling rate. Fixes: abeb6b1e7b ("iio: magnetometer: Add support for MEMSIC MMC35240") Signed-off-by: Daniel Baluta <daniel.baluta@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/magnetometer/mmc35240.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/magnetometer/mmc35240.c b/drivers/iio/magnetometer/mmc35240.c
index 146ae66..7fdf906 100644
--- a/drivers/iio/magnetometer/mmc35240.c
+++ b/drivers/iio/magnetometer/mmc35240.c
@@ -219,7 +219,8 @@ static int mmc35240_take_measurement(struct mmc35240_data *data)
return ret;
if (reg_status & MMC35240_STATUS_MEAS_DONE_BIT)
break;
- msleep(20);
+ /* minimum wait time to complete measurement is 10 ms */
+ usleep_range(10000, 11000);
}
if (tries < 0) {
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