1afb29721e
The "vbe_valid" flag is used by Coreboot table to notify payloads if a valid VBE
system is available. It is possible that display system initialization may fail
after a valid EDID is found. In that case, currently payloads will crash when
trying to output to video console.
The original intention for this portion of code is to add some check so
set_vbe_mode_info_valid can abort when no valid EDID is found. However now we do
have platforms (ex, ARM/Exynos) that hard codes EDID structure without calling
decode_edid, so we should let the callers decide if they want to continue
by the return value of decode_edid. We don't need to set vbe_valid when checksum
is correct.
It should be safe to remove the setting of vbe_valid in decode_edid function,
because vbe_valid is also set in set_vbe_mode_info_valid function. Currently all
devices calling decode_edid (tegra124, link, peppy, falco) do invoke
set_vbe_mode_info_valid after decode_edid.
BRANCH=none
BUG=none
TEST=Manually built and tested on following devices:
nyan_big, link, peppy, falco.
Change-Id: I5232bca92f73b21314d37dcd6c81578232318fd5
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/195371
Reviewed-by: Julius Werner <jwerner@chromium.org>
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| .. | ||
| arch | ||
| console | ||
| cpu | ||
| device | ||
| drivers | ||
| ec | ||
| include | ||
| lib | ||
| mainboard | ||
| northbridge | ||
| soc | ||
| southbridge | ||
| superio | ||
| vendorcode | ||
| Kconfig | ||