Add a PWM framework driver for the PWM controller found on Atmel SoCs.
Signed-off-by: NBo Shen <voice.shen@atmel.com>
Acked-by: NAlexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
[thierry.reding: coding style and other minor cleanups]
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>