[PATCH 4/4] Documentation: drm: describing plane alpha and color blending property

[Laurent Pinchart]

Hi Sagar,

Thank you for the patch.

On Saturday 08 March 2014 13:51:19 sagar.a.kamble at intel.com wrote:
> From: Sagar Kamble <sagar.a.kamble at intel.com>
> 
> Cc: Rob Landley <rob at landley.net>
> Cc: Dave Airlie <airlied at redhat.com>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
> Cc: David Herrmann <dh.herrmann at gmail.com>
> Cc: Alex Deucher <alexander.deucher at amd.com>
> Cc: "Ville Syrjälä" <ville.syrjala at linux.intel.com>
> Cc: Sagar Kamble <sagar.a.kamble at intel.com>
> Cc: "Purushothaman, Vijay A" <vijay.a.purushothaman at intel.com>
> Cc: linux-doc at vger.kernel.org
> Cc: dri-devel at lists.freedesktop.org
> Signed-off-by: Sagar Kamble <sagar.a.kamble at intel.com>
> ---
>  Documentation/DocBook/drm.tmpl | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl
> index 5650d13..ba260e8 100644
> --- a/Documentation/DocBook/drm.tmpl
> +++ b/Documentation/DocBook/drm.tmpl
> @@ -2334,7 +2334,7 @@ void intel_crt_init(struct drm_device *dev)
>  </tr>
>  <tr>
>  <td rowspan="19" valign="top" >DRM</td>
> -<td rowspan="2" valign="top" >Generic</td>
> +<td rowspan="3" valign="top" >Generic</td>
>  <td valign="top" >“EDID”</td>
>  <td valign="top" >BLOB | IMMUTABLE</td>
>  <td valign="top" >0</td>
> @@ -2349,6 +2349,17 @@ void intel_crt_init(struct drm_device *dev)
>  <td valign="top" >Contains DPMS operation mode value.</td>
>  </tr>
>  <tr>
> +<td valign="top" >“blend”</td>
> +<td valign="top" >BITMASK</td>
> +<td valign="top" >{ {0, "none"}, {1, "zero"}, {2, "one"}, {3, "src-color"},
> {4, "one-minus-src-color"} +, {5, "dst-color"}, {6, "one-minus-dst-color"},
> {7, "src-alpha"}, {8, "one-minus-src-alpha"}, {9, "dst-alpha"} +, {10,
> "one-minus-dst-alpha"}, {11, "constant-color"}, {12,
> "one-minus-constant-color"}, {13, "constant-alpha"} +, {14,
> "one-minus-constant-alpha"}, {15, "alpha-saturate"}, {16, "src1-color"},
> {17, "one-minus-src1-color"} +, {18, "src1-alpha"}, {19,
> "one-minus-src1-alpha"}, {20, "pre-multiplied-alpha"} }</td> +<td
> valign="top" >Plane</td>
> +<td valign="top" >Contains plane alpha/color blending operation value.</td>

I believe this calls for a description of each property value. From patches 
1/4 and 4/4 it's not entirely clear to me what all values mean.

> +</tr>
> +<tr>
>  <td rowspan="2" valign="top" >DVI-I</td>
>  <td valign="top" >“subconnector”</td>
>  <td valign="top" >ENUM</td>

-- 
Regards,

Laurent Pinchart