Not only does dw-hdmi use these functions, but others
need to use them, such as inno-hdmi.
Change-Id: I1ced6e30b7634511fecbbfb39c24ede78894dd1d
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Adding hdmi quantization range switching function. The current
version use default quant range, subsequent version will keep consistent
with the kernel Setting.
Change-Id: Ibb93f7c08d72322caa15f12b1d6e1f901371b27b
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
The original edid parsing methods are too simple. The
new parsing methods are carried from kernel.
Change-Id: I28b9b14e1bc76c38366f41d23f0e01ac779780d0
Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
We should not use an open-coded value here. Use sizeof() instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Coverity (CID: 163252)
Fixes: 43c6bdd0 (edid: Add HDMI flag to timing info)
This commit fixes the warning produced by gcc 7.1.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Some DVI monitors don't show anything in HDMI mode since audio stream
confuses them. To solve this situation, this commit adds HDMI flag in
timing data and sets it accordingly during edid parsing.
First existence of extension block is checked. If it exists and it is
CEA861 extension, then data blocks are checked for presence of HDMI
vendor specific data block. If it is present, HDMI flag is set.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>
Timing flags are never set, so they may contain garbage. Since some
drivers check them, video output may be broken on those drivers.
Initialize them to 0 and check for few common flags.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>
For digital displays (such as EDP LCDs) we would like to read the EDID
information and use that to set display timings. Provide a function to do
this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Add a helper function to check the checksum of an EDID data block.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
This implements a library for accessing EDID data from an LCD panel.
This is used to obtain information about the panel such as its
resolution and type.
This is a tidied-up version of the original code pulled from
https://github.com/ynezz/u-boot-edid.
The changes we made are:
- removed bit fields in the struct;
- removed endianness cases in the struct;
- fixed some wrong definitions;
- fixed to fit 80 columns;
- fixed some code styles.
Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Algea Cao
Alexey Brodkin
Kever Yang
Mark Yao
Simon Glass
Jernej Skrabec
Hans de Goede
Wolfgang Denk
Tom Wai-Hong Tam