[PATCH 16/28] drm: Document drm_atomic_*_get_property

[Thierry Reding]

On Fri, Dec 04, 2015 at 09:45:57AM +0100, Daniel Vetter wrote:
> Yes these are internal functions and not exported and we generally
> don't document them. But for symmetry with the _set_property functions
> (which are exported for the atomic helpers) I'd like to document them.
> Upcoming vtable kerneldoc will reference both the set and get_property
> functions.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> ---
>  Documentation/DocBook/gpu.tmpl |  1 +
>  drivers/gpu/drm/drm_atomic.c   | 33 ++++++++++++++++++++++++++++++---
>  2 files changed, 31 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/DocBook/gpu.tmpl b/Documentation/DocBook/gpu.tmpl
> index 23ad100c2bf5..02c7d44f517c 100644
> --- a/Documentation/DocBook/gpu.tmpl
> +++ b/Documentation/DocBook/gpu.tmpl
> @@ -946,6 +946,7 @@ int max_width, max_height;</synopsis>
>      <sect2>
>        <title>Atomic Mode Setting Function Reference</title>
>  !Edrivers/gpu/drm/drm_atomic.c
> +!Idrivers/gpu/drm/drm_atomic.c
>      </sect2>
>      <sect2>
>        <title>Frame Buffer Creation</title>
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index ef5f7663a718..7426d40017a0 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -429,11 +429,20 @@ int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
>  }
>  EXPORT_SYMBOL(drm_atomic_crtc_set_property);
>  
> -/*
> +/**
> + * drm_atomic_crtc_get_property - get property value from CRTC state
> + * @crtc: the drm CRTC to set a property on
> + * @state: the state object to get the property value from
> + * @property: the property to set
> + * @val: pointer to where the value should be written to

Nit: I find this difficult to write and read, and I prefer the wording
"return location for the property value". But either way:

Reviewed-by: Thierry Reding <treding at nvidia.com>
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