linux-kernel - Re: [PATCH v5 1/4] pwm: rename pwm_apply_state() to pwm_apply

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Date:   Fri, 24 Nov 2023 14:31:18 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Sean Young <sean@...s.org>
Cc:     linux-media@...r.kernel.org, linux-pwm@...r.kernel.org,
        Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Jonathan Corbet <corbet@....net>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Javier Martinez Canillas <javierm@...hat.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Support Opensource <support.opensource@...semi.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Mark Gross <markgross@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Helge Deller <deller@....de>,
        Jani Nikula <jani.nikula@...el.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-hwmon@...r.kernel.org,
        linux-input@...r.kernel.org, linux-leds@...r.kernel.org,
        platform-driver-x86@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v5 1/4] pwm: rename pwm_apply_state() to
 pwm_apply_cansleep()

On Sat, Nov 18, 2023 at 04:16:17PM +0000, Sean Young wrote:
> In order to introduce a pwm api which can be used from atomic context,
> we will need two functions for applying pwm changes:
> 
> 	int pwm_apply_cansleep(struct pwm *, struct pwm_state *);
> 	int pwm_apply_atomic(struct pwm *, struct pwm_state *);
> 
> This commit just deals with renaming pwm_apply_state(), a following
> commit will introduce the pwm_apply_atomic() function.

Sorry, I still don't agree with that _cansleep suffix. I think it's the
wrong terminology. Just because something can sleep doesn't mean that it
ever will. "Might sleep" is much more accurate because it says exactly
what might happen and indicates what we're guarding against.

Thierry

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