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drm/meson: Convert existing documentation to actual kerneldoc

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Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This commit is contained in:
Neil Armstrong
2017-04-04 14:15:29 +02:00
parent 8cceda5349
commit 2021d5b7d9
7 changed files with 65 additions and 30 deletions
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25
drivers/gpu/drm/meson/meson_venc.c
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@@ -26,26 +26,33 @@
#include "meson_vclk.h"
#include "meson_registers.h"
/*
/**
* DOC: Video Encoder
*
* VENC Handle the pixels encoding to the output formats.
* We handle the following encodings :
*
* - CVBS Encoding via the ENCI encoder and VDAC digital to analog converter
* - TMDS/HDMI Encoding via ENCI_DIV and ENCP
* - Setup of more clock rates for HDMI modes
*
* What is missing :
*
* - LCD Panel encoding via ENCL
* - TV Panel encoding via ENCT
*
* VENC paths :
* _____ _____ ____________________
* vd1---| |-| | | VENC /---------|----VDAC
* vd2---| VIU |-| VPP |-|-----ENCI/-ENCI_DVI-|\
* osd1--| |-| | | \ | X--HDMI-TX
* osd2--|_____|-|_____| | |\-ENCP--ENCP_DVI-|/
* | | |
* | \--ENCL-----------|----LVDS
* |____________________|
*
* .. code::
*
* _____ _____ ____________________
* vd1---| |-| | | VENC /---------|----VDAC
* vd2---| VIU |-| VPP |-|-----ENCI/-ENCI_DVI-|-|
* osd1--| |-| | | \ | X--HDMI-TX
* osd2--|_____|-|_____| | |\-ENCP--ENCP_DVI-|-|
* | | |
* | \--ENCL-----------|----LVDS
* |____________________|
*
* The ENCI is designed for PAl or NTSC encoding and can go through the VDAC
* directly for CVBS encoding or through the ENCI_DVI encoder for HDMI.