linux-kernel - Re: [PATCH v3 2/4] backlight: Expose brightness curve type through sysfs

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Message-ID: <20190827094459.GB4804@dell>
Date:   Tue, 27 Aug 2019 10:44:59 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Daniel Thompson <daniel.thompson@...aro.org>
Cc:     Matthias Kaehlcke <mka@...omium.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        linux-pwm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Douglas Anderson <dianders@...omium.org>,
        Brian Norris <briannorris@...omium.org>,
        Pavel Machek <pavel@....cz>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>
Subject: Re: [PATCH v3 2/4] backlight: Expose brightness curve type through
 sysfs

[...]

> > IIUC the conclusion is that there is no need for a string attribute
> > because we only need to distinguish between 'perceptual' and
> > 'non-perceptual'. If that is correct, do you have any preference for
> > the attribute name ('perceptual_scale', 'perceptual', ...)?
> 
> More a summary than a conclusion! There is a reason I have left a bit or
> space for others to comment on this over the last month (and a bit).
> 
> To be clear my Reviewed-by: means that I believe that the kernel is better
> with "non-linear/linear/unknown" than without it and that I am comfortable
> the API isn't likely to be a millstone for us.
> 
> Lee, Jingoo: Either of you care to offer $0.02

No, not really.  Happy to leave it to your good judgement.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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