pwm: fsl-ftm: Use write protection for prescaler & polarity

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Modifying the prescaler or polarity value must be done with the
write protection disabled. Currently this is working by chance as
the write protection is in a disabled state by default.
This patch makes sure that we enable/disable the write protection
when needed.

Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

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Patrick Havelange 2019-06-12 16:12:46 +02:00 • committed by Thierry Reding

parent 3479bbd1e1

commit a2a28229cd

1 changed files with 21 additions and 0 deletions

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drivers/pwm/pwm-fsl-ftm.c

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