This patch adds power management descriptions that consumers should
implement it.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
be used to set the initial PWM config (usually done in the probe function
of the PWM user). PWM arguments are retrieved with pwm_get_args().
+All consumers should really be reconfiguring the PWM upon resume as
+appropriate. This is the only way to ensure that everything is resumed in
+the proper order.
+
Using PWMs with the sysfs interface
-----------------------------------
state) is also encouraged for the same reason: letting the PWM user know
about the current PWM state would allow him to avoid glitches.
+Drivers should not implement any power management. In other words,
+consumers should implement it as described in the "Using PWMs" section.
+
Locking
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