53 Commits

Author	SHA1	Message	Date
Alexandre Belloni	8db9e29fe5	pwm: atmel: Fix polarity handling ... When atmel_pwm_config() calculates and then sets the prescaler, it is overwriting the channel's CMR register so we are losing the CPOL configuration. As atmel_pwm_config() is always called before enabling a channel, inverting the polarity doesn't work. Fix that by reading CMR first and only overwriting the prescaler bits. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>	2014-03-18 20:47:31 +01:00
Bo Shen	6a6833563f	pwm: atmel-pwm: Do not unprepare clock after successful registration ... When the PWM controller is registered successfully, the clock can not unprepare, so fix it. Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>	2013-12-20 10:48:43 +01:00
Bo Shen	32b16d46e4	pwm: atmel-pwm: Add Atmel PWM controller driver ... Add a PWM framework driver for the PWM controller found on Atmel SoCs. Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> [thierry.reding: coding style and other minor cleanups] Signed-off-by: Thierry Reding <thierry.reding@gmail.com>	2013-12-17 11:26:42 +01:00