build bot (Jenkins) has posted comments on this change. ( https://review.coreboot.org/25023 )
Change subject: google/scarlet: Adjust K&D power sequence from software
......................................................................
Patch Set 3:
Build Successful
https://qa.coreboot.org/job/coreboot-gerrit/68367/ : SUCCESS
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Brian Norris has posted comments on this change. ( https://review.coreboot.org/25023 )
Change subject: google/scarlet: Adjust K&D power sequence from software
......................................................................
Patch Set 3:
Hey, display vendors read Gerrit and help me correct typos! Whoa!
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Hello Lin Huang, Julius Werner, build bot (Jenkins), Matthias Kaehlcke,
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/25023
to look at the new patch set (#3).
Change subject: google/scarlet: Adjust K&D power sequence from software
......................................................................
google/scarlet: Adjust K&D power sequence from software
Hardware updates have suggested we need to configure the K&D panel's
power sequence in software, not in hardware. Without this change, K&D
panels will no longer power on correctly and will instead display a
black screen.
Per K&D's suggestion, we tweak these two commands. From the little HW
docs I have, this looks like it's:
(Address 0xB7, Value 0x02) -> set BC_CTRL=bit(1) (Back light control) to
1
(Address 0xF1, Value 0x22) -> change GPO2_SEL=bits(0:3) from
MIPI_TE(0001b) to BC_CTRL (0010b)
BRANCH=scarlet
BUG=b:73133861
TEST=KD display with and without HW fix on Scarlet
Change-Id: Ia076a378b10417dd9891746f9bc1086360a0f6e6
Signed-off-by: Brian Norris <briannorris(a)chromium.org>
---
M src/mainboard/google/gru/mainboard.c
1 file changed, 2 insertions(+), 1 deletion(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/23/25023/3
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Brian Norris has posted comments on this change. ( https://review.coreboot.org/25023 )
Change subject: google/scarlet: Adjust K&D power sequence from software
......................................................................
Patch Set 2:
I guess I don't have 'submit' permissions?
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Brian Norris has posted comments on this change. ( https://review.coreboot.org/25023 )
Change subject: google/scarlet: Adjust K&D power sequence from software
......................................................................
Patch Set 2:
Hey, I documented it this time! Kind of.
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Julius Werner has posted comments on this change. ( https://review.coreboot.org/25023 )
Change subject: google/scarlet: Adjust K&D power sequence from software
......................................................................
Patch Set 2: Code-Review+2
More random numbers in the MIPI init always look good to me.
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