linux-kernel - Re: [PATCH v3 00/12] pwm: add support for atomic update

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Message-ID: <CAD=FV=W3KPf8tyMviVNB9=HjefMdP+FBbN01Zhh7RKH+gkj2WQ@mail.gmail.com>
Date:	Mon, 7 Mar 2016 08:34:19 -0800
From:	Doug Anderson <dianders@...gle.com>
To:	Thierry Reding <thierry.reding@...il.com>
Cc:	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Heiko Stübner <heiko@...ech.de>,
	linux-pwm <linux-pwm@...r.kernel.org>,
	Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Lee Jones <lee.jones@...aro.org>, linux-fbdev@...r.kernel.org,
	Bryan Wu <cooloney@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Jacek Anaszewski <j.anaszewski@...sung.com>,
	linux-leds@...r.kernel.org,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	linux-sunxi@...glegroups.com,
	"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>, Olof Johansson <olof@...om.net>
Subject: Re: [PATCH v3 00/12] pwm: add support for atomic update

Thierry,

On Thu, Feb 25, 2016 at 3:14 PM, Doug Anderson <dianders@...gle.com> wrote:
> So just to summarize:
>
> * Add pwm_get_state(), pwm_apply_state(), pwm_get_args().
> pwm_get_state() initially returns 0 for duty cycle if driver doesn't
> support readout.
>
> * Re-implement pwm_get_period() (and maybe other similar functions)
> atop pwm_get_state() as you describe earlier in the thread.
>
> * Document pwm_get_period() (and maybe other similar functions) as deprecated.
>
> * Fix drivers for all current 2 users of PWM regulator to support
> hardware readout.
>
> * Update PWM regulator as you described earlier in the thread (Feb 23).
>
> * If PWM regulator is ever used on a new board whose PWM doesn't
> support hardware readout, the voltage will change at probe time.
>
>
> Did I get all that right?  Thanks!

Can you provide a "yes, you got that right" or a "no, you didn't
understand"?  That will unblock Boris, I think.

-Doug