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From: Mark Brown <broonie@kernel.org>
To: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Thierry Reding <thierry.reding@gmail.com>,
	linux-pwm@vger.kernel.org,
	Mike Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	linux-clk@vger.kernel.org, Liam Girdwood <lgirdwood@gmail.com>,
	Kamil Debski <k.debski@samsung.com>,
	lm-sensors@lm-sensors.org, Jean Delvare <jdelvare@suse.com>,
	Guenter Roeck <linux@roeck-us.net>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	linux-input@vger.kernel.org, Bryan Wu <cooloney@gmail.com>,
	Richard Purdie <rpurdie@rpsys.net>,
	Jacek Anaszewski <j.anaszewski@samsung.com>,
	linux-leds@vger.kernel.org,
	Maxime Ripard <maxime.ripard@free-electrons.com>,
	Chen-Yu Tsai <wens@csie.org>,
	linux-sunxi@googlegroups.com,
	Joachim Eastwood <manabian@gmail.com>,
	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
	Heiko Stuebner <heiko@sntech.de>,
	linux-rockchip@lists.infradead.org,
	Jingoo Han <jingoohan1@gmail.com>,
	Lee Jones <lee.jones@linaro.org>,
	linux-fbdev@vger.kernel.org,
	Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>,
	Tomi Valkeinen <tomi.valkeinen@ti.com>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	Alexandre Belloni <alexandre.belloni@free-electrons.com>,
	Julia Lawall <Julia.Lawall@lip6.fr>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 09/24] regulator: pwm: use pwm_get/set_default_xxx() helpers where appropriate
Date: Mon, 16 Nov 2015 10:55:58 +0000	[thread overview]
Message-ID: <20151116105558.GB31303@sirena.org.uk> (raw)
In-Reply-To: <1447664207-24370-10-git-send-email-boris.brezillon@free-electrons.com>

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On Mon, Nov 16, 2015 at 09:56:32AM +0100, Boris Brezillon wrote:

> +++ b/drivers/regulator/pwm-regulator.c
> @@ -56,7 +56,7 @@ static int pwm_regulator_set_voltage_sel(struct regulator_dev *rdev,
>  	int dutycycle;
>  	int ret;
>  
> -	pwm_reg_period = pwm_get_period(drvdata->pwm);
> +	pwm_reg_period = pwm_get_default_period(drvdata->pwm);
>  
>  	dutycycle = (pwm_reg_period *
>  		    drvdata->duty_cycle_table[selector].dutycycle) / 100;

It's not clear to me that we're not looking for the current period here
or in the other use.  Won't configuring based on a period other than the
one that has been set give the wrong answer?

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  reply	other threads:[~2015-11-16 10:55 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-16  8:56 [PATCH v4 00/24] pwm: add support for atomic update Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 01/24] pwm: rcar: make use of pwm_is_enabled() Boris Brezillon
2016-03-16 14:30   ` Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 02/24] pwm: use pwm_get_xxx() helpers where appropriate Boris Brezillon
2015-11-16 17:46   ` Joachim Eastwood
2015-11-16 18:06     ` Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 03/24] clk: " Boris Brezillon
2015-12-30 21:03   ` Michael Turquette
2015-11-16  8:56 ` [PATCH v4 04/24] hwmon: pwm-fan: " Boris Brezillon
2015-11-16 15:59   ` Guenter Roeck
2015-11-16 16:53     ` Boris Brezillon
2015-11-16 17:00       ` Guenter Roeck
2015-11-16  8:56 ` [PATCH v4 05/24] misc: max77693-haptic: " Boris Brezillon
2015-11-16 13:10   ` Krzysztof Kozlowski
2015-11-16 13:55     ` Boris Brezillon
2015-11-16 15:55       ` Guenter Roeck
2015-11-16 16:00         ` Boris Brezillon
2015-11-17 17:32   ` Dmitry Torokhov
2015-11-16  8:56 ` [PATCH v4 06/24] pwm: introduce default period and polarity concepts Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 07/24] pwm: use pwm_get/set_default_xxx() helpers where appropriate Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 08/24] leds: " Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 09/24] regulator: " Boris Brezillon
2015-11-16 10:55   ` Mark Brown [this message]
2015-11-16 12:23     ` Boris Brezillon
2015-11-16 18:42       ` Mark Brown
2015-11-16 19:28         ` Boris Brezillon
2015-12-02 10:37         ` Boris Brezillon
2015-12-30 11:01           ` Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 10/24] backlight: " Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 11/24] fbdev: " Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 12/24] misc: max77693: " Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 13/24] hwmon: pwm-fan: " Boris Brezillon
2015-11-16 16:00   ` Guenter Roeck
2015-11-16  8:56 ` [PATCH v4 14/24] clk: pwm: " Boris Brezillon
2015-12-30 21:05   ` Michael Turquette
2015-11-16  8:56 ` [PATCH v4 15/24] pwm: define a new pwm_state struct Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 16/24] pwm: move the enabled/disabled info to " Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 17/24] backlight: pwm_bl: remove useless call to pwm_set_period Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 18/24] pwm: declare a default PWM state Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 19/24] pwm: add the PWM initial state retrieval infra Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 20/24] pwm: add the core infrastructure to allow atomic update Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 21/24] pwm: add information about polarity, duty cycle and period to debugfs Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 22/24] pwm: rockchip: add initial state retrieval Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 23/24] pwm: rockchip: add support for atomic update Boris Brezillon
2015-11-16  8:56 ` [PATCH v4 24/24] regulator: pwm: properly initialize the ->state field Boris Brezillon
2015-11-16 14:45 ` [PATCH v4 00/24] pwm: add support for atomic update Heiko Stübner

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