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

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Date:   Mon, 31 Jan 2022 20:39:12 +0000
From:   Simon Ser <contact@...rsion.fr>
To:     Javier Martinez Canillas <javierm@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org,
        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-devel@...ts.freedesktop.org,
        Liam Girdwood <lgirdwood@...il.com>,
        Noralf Trønnes <noralf@...nnes.org>,
        Geert Uytterhoeven <geert@...ux-m68k.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

On Monday, January 31st, 2022 at 21:36, Simon Ser <contact@...rsion.fr> wrote:

> This driver only advertises XRGB8888 in ssd1307_formats. It would be nice to
> expose R8 as well so that user-space can directly produce suitable buffers.
> It would also be nice to have some kind of preferred format, so that user-space
> knows R8 is preferred over XRGB8888.

Hm, since the format used by the hw is actually R1, adding that to drm_fourcc.h
would be even better.

Let me know if you want me to type up any of the user-space bits.