linux-kernel - Re: [PATCH] drm: adding SDI to drm_connector_enum_list

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Date:   Mon, 31 Jul 2017 10:27:22 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Saurabh Singh <saurabh.singh@...inx.com>
Cc:     Daniel Vetter <daniel@...ll.ch>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        Dinesh Kumar <dineshk@...inx.com>
Subject: Re: [PATCH] drm: adding SDI to drm_connector_enum_list

On Fri, Jul 28, 2017 at 09:27:22AM +0000, Saurabh Singh wrote:
> Hi Daniel,
> 
> Thanks for your reply.
> Currently I am using connector type 'Unknown' , and functionally it serves my need.
> Intention for sending this patch is that userspace tools should recognize SDI drivers as SDI only.
> Also, I see there are number of 'SDI' drivers getting developed 'under the hood' in linux kernel.
> This patch will benefit all of them.

Where are those?

> It will be great if you could consider it.

Well new uabi has very strict merge requirements:

https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html#open-source-userspace-requirements

I'll merge your patch as soon as all the pieces are ready. Just wanted to
warn you that this is a _lot_ of work, and you probably want a really good
reason.

Thanks, Daniel
> 
> Regards,
> Saurabh
> 
> -----Original Message-----
> From: Daniel Vetter [mailto:daniel.vetter@...ll.ch] On Behalf Of Daniel Vetter
> Sent: Wednesday, July 26, 2017 8:08 PM
> To: Saurabh Singh <SAURABHS@...inx.com>
> Cc: linux-kernel@...r.kernel.org; dri-devel@...ts.freedesktop.org; airlied@...ux.ie; Saurabh Singh <SAURABHS@...inx.com>; Dinesh Kumar <dineshk@...inx.com>
> Subject: Re: [PATCH] drm: adding SDI to drm_connector_enum_list
> 
> On Wed, Jul 26, 2017 at 10:22:49AM +0530, Saurabh Sengar wrote:
> > adding SDI to drm connector list
> >
> > Signed-off-by: Saurabh Sengar <saurabhs@...inx.com>
> 
> This is an uapi change, i.e. userspace needs to be updated. Do you _really_ need this? I'd recommend to just use something existing (go with VIRTUAL maybe, not sure).
> 
> Either way, needs to come together with the actual users and userspace side patches. If you really want this.
> -Daniel
> > ---
> >  drivers/gpu/drm/drm_connector.c | 1 +
> >  include/uapi/drm/drm_mode.h     | 1 +
> >  2 files changed, 2 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_connector.c
> > b/drivers/gpu/drm/drm_connector.c index 2db7fb5..ea48ddb 100644
> > --- a/drivers/gpu/drm/drm_connector.c
> > +++ b/drivers/gpu/drm/drm_connector.c
> > @@ -86,6 +86,7 @@ static struct drm_conn_prop_enum_list drm_connector_enum_list[] = {
> >       { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
> >       { DRM_MODE_CONNECTOR_DSI, "DSI" },
> >       { DRM_MODE_CONNECTOR_DPI, "DPI" },
> > +     { DRM_MODE_CONNECTOR_SDI, "SDI" },
> >  };
> >
> >  void drm_connector_ida_init(void)
> > diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
> > index df0e350..9b8d204 100644
> > --- a/include/uapi/drm/drm_mode.h
> > +++ b/include/uapi/drm/drm_mode.h
> > @@ -247,6 +247,7 @@ struct drm_mode_get_encoder {
> >  #define DRM_MODE_CONNECTOR_VIRTUAL      15
> >  #define DRM_MODE_CONNECTOR_DSI               16
> >  #define DRM_MODE_CONNECTOR_DPI               17
> > +#define DRM_MODE_CONNECTOR_SDI               18
> >
> >  struct drm_mode_get_connector {
> >
> > --
> > 2.7.4
> >
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@...ts.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
> 
> 
> This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately.
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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