linux-kernel - Re: [PATCH] drm: fourcc byteorder: brings header file comments in line with reality.

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Date:   Fri, 21 Apr 2017 11:38:28 +0200
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Pekka Paalanen <ppaalanen@...il.com>
Cc:     dri-devel@...ts.freedesktop.org,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Ilia Mirkin <imirkin@...m.mit.edu>,
        Michel Dänzer <michel@...nzer.net>,
        Alex Deucher <alexdeucher@...il.com>,
        amd-gfx@...ts.freedesktop.org,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        David Airlie <airlied@...ux.ie>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm: fourcc byteorder: brings header file comments in
 line with reality.

  Hi,

> > Leaving the yuv formats as-is.  I have no idea if and how those are used
> > on bigendian machines.

> just an idea - since we are not sure how the remaining formats are being
> used, should those be marked somehow uncertain whether they are little
> or native endian?

ATM the yuv don't have any byte order annotations, and I simply left
them that way.  So it is as clear/unclear as before.

IIRC someone mentioned that for the yuv fourccs there actually is some
standard about the exact ordering.  Anyone has a good reference?  We
could stick a link to it into a comment.

cheers,
  Gerd