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Groups > linux.kernel > #1264702
| From | Alexandre Belloni <alexandre.belloni@free-electrons.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 01/12] pwm: introduce default period and polarity concepts |
| Date | 2015-11-07 03:40 +0100 |
| Message-ID | <qs1A6-4xx-5@gated-at.bofh.it> (permalink) |
| References | <qb5JL-2GR-3@gated-at.bofh.it> <qb5JO-2GR-41@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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@free-electrons.com> For pwm-sun4i: Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH v3 01/12] pwm: introduce default period and polarity concepts Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2015-11-07 03:40 +0100
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