iio: mma8452: use runtime pm instead of device specific autosleep
What is this autosleep?
-----------------------
It slows down the device after x seconds of inactivity. The thing is, we have
really achieved almost the same by runtime pm.
differnces are:
autosleep
* uses more power during inactivity
* the first read after inactivity slightly faster
* complicated to understand for the user
* no documented sysfs interface (afaik)
* complicated to read and maintain
runtime pm
* already merged in mma8452
* uses less power during inactivity
* first read after inactivity slower
* easy to use. well documented.
* easy to maintain and understand
The two approaches solve the same problem. runtime pm has more advantages
than autosleep and comes quite close to it's behaviour anyways. As I see it,
autosleep, even if somehow supported, would never be used anyways.
So resolve this issue by "ignoring" autosleep.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Reviewed-by: Martina Kepplinger <martina.novakovic@zoho.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 6aa2517..e225d3c 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -17,7 +17,7 @@
*
* 7-bit I2C slave address 0x1c/0x1d (pin selectable)
*
- * TODO: orientation events, autosleep
+ * TODO: orientation events
*/
#include <linux/module.h>