pwm: imx: Document known limitations

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Uwe Kleine-König 2019-07-30 14:45:27 +02:00 • committed by Thierry Reding
commit f6960976c4