Baruch Siach 89a4610650 gpio: mvebu: fix pwm .get_state period calculation
commit e73b0101ae5124bf7cd3fb5d250302ad2f16a416 upstream.

The period is the sum of on and off values. That is, calculate period as

  ($on + $off) / clkrate

instead of

  $off / clkrate - $on / clkrate

that makes no sense.

Reported-by: Russell King <linux@armlinux.org.uk>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Fixes: 757642f9a584e ("gpio: mvebu: Add limited PWM support")
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
[baruch: backport to kernels <= v5.10]
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-30 13:31:15 +01:00
..
2017-08-14 15:01:13 +02:00
2017-05-22 17:18:19 +02:00
2016-12-30 09:18:10 +01:00
2016-09-13 10:35:56 +02:00
2016-12-30 09:18:10 +01:00
2017-03-16 21:52:10 +01:00
2017-08-23 09:21:54 +02:00