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Date: Tue, 6 Oct 2015 12:09:35 +0200 From: Alexandre Belloni <alexandre.belloni@...e-electrons.com> To: Boris Brezillon <boris.brezillon@...e-electrons.com> Cc: Thierry Reding <thierry.reding@...il.com>, linux-pwm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Bryan Wu <cooloney@...il.com>, Richard Purdie <rpurdie@...ys.net>, Jacek Anaszewski <j.anaszewski@...sung.com>, linux-leds@...r.kernel.org, Heiko Stuebner <heiko@...ech.de>, linux-rockchip@...ts.infradead.org, Jingoo Han <jingoohan1@...il.com>, Lee Jones <lee.jones@...aro.org>, linux-fbdev@...r.kernel.org, Mark Brown <broonie@...nel.org>, Liam Girdwood <lgirdwood@...il.com>, Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>, Tomi Valkeinen <tomi.valkeinen@...com>, Doug Anderson <dianders@...gle.com>, Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, Maxime Ripard <maxime.ripard@...e-electrons.com> Subject: Re: [PATCH v2 01/10] pwm: introduce default period and polarity concepts On 20/07/2015 at 17:31:58 +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@...e-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@...e-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@...r.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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