[PATCH v3 01/12] pwm: introduce default period and polarity concepts

[Alexandre Belloni]

On 21/09/2015 at 11:33:18 +0200, Boris Brezillon wrote :
> When requested by a user, the PWM is assigned a default period and polarity
> extracted from the DT, the platform data or statically set by the driver.
> Those default values are currently stored in the period and polarity
> fields of the pwm_device struct, but they will be stored somewhere else
> once we have introduced the architecture allowing for hardware state
> retrieval.
> 
> The pwm_set_default_polarity and pwm_set_default_period should only be
> used by PWM drivers or the PWM core infrastructure to specify the
> default period and polarity values.
> 
> PWM users might call the pwm_get_default_period to query the default
> period value. There is currently no helper to query the default
> polarity, but it might be added later on if there is a need for it.
> 
> This patch also modifies all the places where the default helpers should
> be used in place of the standard ones.
> 
> Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>

For pwm-sun4i:
Reviewed-by: Alexandre Belloni <alexandre.belloni at free-electrons.com>


-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com