[PATCH 1/3] drm: add connector info/property for non-std displays

[Dave Airlie]

On 16 October 2017 at 16:41, Thierry Reding <thierry.reding at gmail.com> wrote:
> On Mon, Oct 16, 2017 at 02:29:07PM +1000, Dave Airlie wrote:
>> From: Dave Airlie <airlied at redhat.com>
>>
>> This adds the infrastructure needed to quirk displays
>> using edid and to mark them a non-standard.
>>
>> A non-standard display is one which doesn't work like
>> a normal rectangular monitor or requires some transformation
>> of the output by the rendering process to make sense.
>>
>> This is meant to cover head mounted devices like HTC Vive.
>>
>> Signed-off-by: Dave Airlie <airlied at redhat.com>
>> ---
>>  drivers/gpu/drm/drm_connector.c | 13 +++++++++++++
>>  drivers/gpu/drm/drm_edid.c      |  8 ++++++--
>>  include/drm/drm_connector.h     |  5 +++++
>>  include/drm/drm_mode_config.h   |  7 +++++++
>>  4 files changed, 31 insertions(+), 2 deletions(-)
>
> "non-standard" seems very ambiguous to me. If this is targetting HMDs in
> particular, perhaps we can borrow a term from that. Without being really
> familiar with that technology, a quick Google search suggests that these
> devices are commonly referred to as operating in "direct mode". Perhaps
> a boolean "direct-mode" property would be less ambiguous?

I'm not sure direct-mode is any less ambiguous, I'm loathe to tie generic
features to specific technologies if we can avoid it, there may be other
requirements for connected displays we don't want to display on without
some special app that aren't HMDs.

I agree non-standard is a bit ambiguous, but I'm not happy direct mode
gives me any more useful info, anyone else got a name?

Dave.