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From: Joshua Crofts via B4 Relay <devnull+joshua.crofts1.gmail.com@kernel.org>
To: "Jonathan Cameron" <jic23@kernel.org>,
	"David Lechner" <dlechner@baylibre.com>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Andy Shevchenko" <andy@kernel.org>
Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
	 Joshua Crofts <joshua.crofts1@gmail.com>
Subject: [PATCH v4 03/17] iio: magnetometer: ak8975: replace usleep_range() with fsleep()
Date: Mon, 04 May 2026 11:48:15 +0200	[thread overview]
Message-ID: <20260504-magnetometer-fixes-v4-3-a291c2a7c71a@gmail.com> (raw)
In-Reply-To: <20260504-magnetometer-fixes-v4-0-a291c2a7c71a@gmail.com>

From: Joshua Crofts <joshua.crofts1@gmail.com>

Replace usleep_range() calls with fsleep(), passing the minimum value
required by the sensor for hardware delays.

fsleep() automatically selects the optimal sleep mechanism, simplifying
driver code and time management.

Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
---
 drivers/iio/magnetometer/ak8975.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index dac0a90c33eebd43f8aeed846c9cbf5fd1a6ab91..a84a05a1b64280e26c428e9752a39380e386c234 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -461,7 +461,8 @@ static int ak8975_power_on(const struct ak8975_data *data)
 	 * and the minimum wait time before mode setting is 100us, in
 	 * total 300us. Add some margin and say minimum 500us here.
 	 */
-	usleep_range(500, 1000);
+	fsleep(500);
+
 	return 0;
 }
 
@@ -551,7 +552,7 @@ static int ak8975_set_mode(struct ak8975_data *data, enum ak_ctrl_mode mode)
 
 	data->cntl_cache = regval;
 	/* After mode change wait at least 100us */
-	usleep_range(100, 500);
+	fsleep(100);
 
 	return 0;
 }

-- 
2.47.3



  parent reply	other threads:[~2026-05-04  9:48 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-04  9:48 [PATCH v4 00/17] iio: magnetometer: ak8975: modernize and cleanup driver Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 01/17] iio: magnetometer: ak8975: sort headers alphabetically Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 02/17] iio: magnetometer: ak8975: update headers per IWYU principle Joshua Crofts via B4 Relay
2026-05-04  9:48 ` Joshua Crofts via B4 Relay [this message]
2026-05-04  9:48 ` [PATCH v4 04/17] iio: magnetometer: ak8975: change 'u8*' to 'u8 *' in cast Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 05/17] iio: magnetometer: ak8975: fix wrong errno on return Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 06/17] iio: magnetometer: ak8975: modernize polling loops with iopoll() macros Joshua Crofts via B4 Relay
2026-05-04 11:18   ` Andy Shevchenko
2026-05-04 15:06   ` Jonathan Cameron
2026-05-05  4:57     ` Andy Shevchenko
2026-05-05  7:07       ` Joshua Crofts
2026-05-05  7:21         ` Andy Shevchenko
2026-05-05  7:26           ` Joshua Crofts
2026-05-05  8:07             ` Joshua Crofts
2026-05-05  8:17               ` Andy Shevchenko
2026-05-04  9:48 ` [PATCH v4 07/17] iio: magnetometer: ak8975: pass conversion timeouts as arguments Joshua Crofts via B4 Relay
2026-05-04 11:10   ` Andy Shevchenko
2026-05-04 11:25     ` Joshua Crofts
2026-05-04 14:06       ` Andy Shevchenko
2026-05-04 14:11         ` Joshua Crofts
2026-05-04 15:07           ` Jonathan Cameron
2026-05-04 11:33   ` Joshua Crofts
2026-05-04 15:09     ` Jonathan Cameron
2026-05-04  9:48 ` [PATCH v4 08/17] iio: magnetometer: ak8975: avoid using temporary variable Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 09/17] iio: magnetometer: ak8975: drop duplicate NULL check Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 10/17] iio: magnetometer: ak8975: remove duplicate error message Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 11/17] iio: magnetometer: ak8975: reduce usage of magic lengths of the buffer Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 12/17] iio: magnetometer: ak8975: unify return code variable name Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 13/17] iio: magnetometer: ak8975: switch to using managed resources Joshua Crofts via B4 Relay
2026-05-04 11:13   ` Andy Shevchenko
2026-05-04 11:28     ` Joshua Crofts
2026-05-04  9:48 ` [PATCH v4 14/17] iio: magnetometer: ak8975: consistently use 'data' parameter Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 15/17] iio: magnetometer: ak8975: unify messages with help of dev_err_probe() Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 16/17] iio: magnetometer: ak8975: use temporary variable for struct device Joshua Crofts via B4 Relay
2026-05-04  9:48 ` [PATCH v4 17/17] iio: magnetometer: ak8975: make use of the macros from bits.h Joshua Crofts via B4 Relay
2026-05-04 11:01 ` [PATCH v4 00/17] iio: magnetometer: ak8975: modernize and cleanup driver Andy Shevchenko
2026-05-04 11:13   ` Joshua Crofts
2026-05-04 15:15     ` Jonathan Cameron

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