linux-kernel - Re: [PATCH 1/4] drm: Add I2C connector type

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Date:   Wed, 2 Feb 2022 10:14:06 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Noralf Trønnes <noralf@...nnes.org>,
        Sam Ravnborg <sam@...nborg.org>,
        Javier Martinez Canillas <javierm@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        dri-devel@...ts.freedesktop.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Maxime Ripard <maxime@...no.tech>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Emil Velikov <emil.l.velikov@...il.com>
Subject: Re: [PATCH 1/4] drm: Add I2C connector type

Hi Noralf,

since you're here, I'll just hijack the discussion to ask something only 
semi-related.

IIRC the gud driver doesn't update the display immediately during atomic 
commits. Instead, it instructs a helper thread to do the update. What's 
the rational behind this design? Is that something we should adopt for 
other drivers that operate over slow buses (USB, I2C, etc)? Would this 
be relevant for the ssd1307 driver?

Best regards
Thomas

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev

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