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Commit 36a28e4a authored by Brian Masney's avatar Brian Masney Committed by Jonathan Cameron
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staging: iio: tsl2x7x: use usleep_range() instead of mdelay() 



This driver in some cases can busy wait for upwards of 15ms. Since the
kernel at this point is not running in atomic context, and is running in
process context, we can safely use usleep_range() instead. This patch
changes the two occurrences of mdelay() to usleep_range().

Signed-off-by: default avatarBrian Masney <masneyb@onstation.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent be78f70c

drivers/staging/iio/light/tsl2x7x.c

+3 −2
Original line number Diff line number Diff line
@@ -686,7 +686,8 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev) 
		}

	}



	mdelay(3);	/* Power-on settling time */

	/* Power-on settling time */

	usleep_range(3000, 3500);



	/*

	 * NOW enable the ADC
@@ -853,7 +854,7 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev) 


	/*gather the samples*/

	for (i = 0; i < chip->tsl2x7x_settings.prox_max_samples_cal; i++) {

		mdelay(15);

		usleep_range(15000, 17500);

		tsl2x7x_get_prox(indio_dev);

		prox_history[i] = chip->prox_data;

		dev_info(&chip->client->dev, "2 i=%d prox data= %d\n",