linux-kernel - Re: [PATCH 4/4] drm/panel: Add helper for simple panel connector

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Date:	Fri, 6 May 2016 16:07:01 +0200
From:	Daniel Vetter <daniel@...ll.ch>
To:	Thierry Reding <thierry.reding@...il.com>
Cc:	Noralf Trønnes <noralf@...nnes.org>,
	treding@...dia.com, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 4/4] drm/panel: Add helper for simple panel connector

On Fri, May 06, 2016 at 04:01:37PM +0200, Thierry Reding wrote:
> On Fri, May 06, 2016 at 03:39:53PM +0200, Noralf Trønnes wrote:
> > 
> > Den 05.05.2016 19:03, skrev Daniel Vetter:
> > > On Thu, May 05, 2016 at 03:24:34PM +0200, Noralf Trønnes wrote:
> > > > Add function to create a simple connector for a panel.
> > > > 
> > > > Signed-off-by: Noralf Trønnes <noralf@...nnes.org>
> > > Like in the previous patch please also add a new section for the panel
> > > helpers to gpu.tmpl. I don't think this needs an overview section, it's so
> > > simple. But adding some cross references from the drm_panel.c kerneldoc to
> > > this and back would be real good.
> > 
> > drm_panel.c doesn't have any documentation and the header file has only
> > the drm_panel_funcs struct documented, not hooked up to gpu.tmpl.
> > 
> > I can make a patch documenting the functions, it looks fairly straight
> > forward, but I have no idea what to put in the DOC: section, except an
> > xref to this helper :-)
> 
> Maybe now is a good time for me to post the below. I really should've
> sent this out ages ago, sorry.
> 
> Thierry
> --- >8 ---
> From 77057510413f8ca52d37da883afeabb13031ec63 Mon Sep 17 00:00:00 2001
> From: Thierry Reding <treding@...dia.com>
> Date: Tue, 4 Nov 2014 15:23:10 +0100
> Subject: [PATCH] drm/panel: Flesh out kerneldoc
> 
> Write more complete kerneldoc comments for the DRM panel API and
> integrate the helpers in the DRM DocBook reference.
> 
> Signed-off-by: Thierry Reding <treding@...dia.com>

Applied to drm-msic, thanks.

> ---
>  Documentation/DocBook/gpu.tmpl | 12 ++++++---
>  drivers/gpu/drm/drm_panel.c    | 61 ++++++++++++++++++++++++++++++++++++++++++
>  include/drm/drm_panel.h        | 59 ++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 129 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/DocBook/gpu.tmpl b/Documentation/DocBook/gpu.tmpl
> index 1464fb2f3c46..fb4ad6945a97 100644
> --- a/Documentation/DocBook/gpu.tmpl
> +++ b/Documentation/DocBook/gpu.tmpl
> @@ -1671,17 +1671,23 @@ void intel_crt_init(struct drm_device *dev)
>  !Pdrivers/gpu/drm/drm_crtc.c Tile group
>      </sect2>
>      <sect2>
> -	<title>Bridges</title>
> +      <title>Bridges</title>
>        <sect3>
> -	 <title>Overview</title>
> +        <title>Overview</title>
>  !Pdrivers/gpu/drm/drm_bridge.c overview
>        </sect3>
>        <sect3>
> -	 <title>Default bridge callback sequence</title>
> +        <title>Default bridge callback sequence</title>
>  !Pdrivers/gpu/drm/drm_bridge.c bridge callbacks
>        </sect3>
>  !Edrivers/gpu/drm/drm_bridge.c
>      </sect2>
> +    <sect2>
> +      <title>Panel Helper Reference</title>
> +!Iinclude/drm/drm_panel.h
> +!Edrivers/gpu/drm/drm_panel.c
> +!Pdrivers/gpu/drm/drm_panel.c drm panel
> +    </sect2>

Hm, since you call this a helper, and we already have a Kconfig for it I
guess would make sense to put Noralf's connector-for-panel helper in there
too?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch