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drm/vc4: Add a paragraph at the top of vc4 docs introducing what it is.

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This makes for more sensible documentation of the whole module than
jumping straight into the details of display.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170227201144.10970-5-eric@anholt.net
This commit is contained in:
Eric Anholt 2017-02-27 12:11:44 -08:00
parent f6c01530fd
commit b787963ae2
2 changed files with 19 additions and 0 deletions
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3
Documentation/gpu/vc4.rst
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@ -2,6 +2,9 @@
drm/vc4 Broadcom VC4 Graphics Driver
=====================================
.. kernel-doc:: drivers/gpu/drm/vc4/vc4_drv.c
:doc: Broadcom VC4 Graphics Driver
Display Hardware Handling
=========================

16
drivers/gpu/drm/vc4/vc4_drv.c
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@ -7,6 +7,22 @@
* published by the Free Software Foundation.
*/
/**
* DOC: Broadcom VC4 Graphics Driver
*
* The Broadcom VideoCore 4 (present in the Raspberry Pi) contains a
* OpenGL ES 2.0-compatible 3D engine called V3D, and a highly
* configurable display output pipeline that supports HDMI, DSI, DPI,
* and Composite TV output.
*
* The 3D engine also has an interface for submitting arbitrary
* compute shader-style jobs using the same shader processor as is
* used for vertex and fragment shaders in GLES 2.0. However, given
* that the hardware isn't able to expose any standard interfaces like
* OpenGL compute shaders or OpenCL, it isn't supported by this
* driver.
*/
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/device.h>