linux-kernel - Re: [PATCH 0/4] drm/tiny: Add driver for Solomon SSD1307 OLED displays

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Message-ID: <CAMuHMdUHhUkPhq8M0d=p5EgH8bBz6EtH4drajKtQHE0121V1uQ@mail.gmail.com>
Date:   Tue, 1 Feb 2022 09:36:55 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Simon Ser <contact@...rsion.fr>
Cc:     Javier Martinez Canillas <javierm@...hat.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux PWM List <linux-pwm@...r.kernel.org>,
        Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Mark Brown <broonie@...nel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Noralf Trønnes <noralf@...nnes.org>,
        Maxime Ripard <maxime@...no.tech>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Thierry Reding <thierry.reding@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Lee Jones <lee.jones@...aro.org>
Subject: Re: [PATCH 0/4] drm/tiny: Add driver for Solomon SSD1307 OLED displays

Hi Simon,

On Tue, Feb 1, 2022 at 9:34 AM Simon Ser <contact@...rsion.fr> wrote:
> On Tuesday, February 1st, 2022 at 09:26, Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> > What's the story with the Rn formats?
> >
> > The comments say "n bpp Red", while this is a monochrome (even
> > inverted) display?
>
> I don't think the color matters that much. "Red" was picked just because it was
> an arbitrary color, to make the difference with e.g. C8. Or am I mistaken?

I'd expect 8-bit grayscale to be Y8 instead.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds