c525b112e
parent 8d1c24bfd20829f5943c76b85c4973db264dd666
author Philipp Zabel
1340633720 +0200
committer Thierry Reding 1347452707 +0200
pwm: i.MX: fix clock lookup
The i.MX PWM core has two clocks: The ipg clock and the ipg highfreq
(peripheral) clock. The ipg clock has to be enabled for this hardware
to work. The actual PWM output can either be driven by the ipg clock
or the ipg highfreq. The ipg highfreq has the advantage that it runs
even when the SoC is in low power modes.
This patch requests both clocks and enables the ipg clock for accessing
registers and the peripheral clock to actually turn on the PWM.
Signed-off-by: Philipp Zabel
Signed-off-by: Sascha Hauer
Reviewed-by: Shawn Guo
Reviewed-by: Benoît Thébaudeau
Signed-off-by: Thierry Reding
ZD