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Change subject: mb/google/nissa/var/riven: Configure Acoustic noise mitigation
......................................................................
Patch Set 3:
(2 comments)
Commit Message:
https://review.coreboot.org/c/coreboot/+/84908/comment/6818a84b_af987029?us… :
PS2, Line 9: - Enable Acoustic noise mitigation
: - Set slow slew rate VCCIA and VCCGT to SLEW_FAST_4
: - Set FastPkgCRampDisable VCCIA and VCCGT to 1
> How did you determine these values?
From power team suggested in b/376165743#comment2
>We had tried the following solutions to reduce the EE acoustic noise.
>1. Change the CPU slew rate form 1/2 to 1/4.
>2. Stuff POSCAPs 150uF on VCCCORE(C620) and VCCGT(C621) power rail.
>According to the attachment, the acoustic noise can be improved a lot.
https://review.coreboot.org/c/coreboot/+/84908/comment/d4bd4996_62026436?us… :
PS2, Line 14: TEST=build FW and check fsp log.
> Shouldn’t the “noise” also be measured somehow?
Done.
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Hello Dinesh Gehlot, Eric Lai, Jayvik Desai, Kapil Porwal, Nick Vaccaro, Subrata Banik, build bot (Jenkins),
I'd like you to reexamine a change. Please visit
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Change subject: mb/google/nissa/var/riven: Configure Acoustic noise mitigation
......................................................................
mb/google/nissa/var/riven: Configure Acoustic noise mitigation
- Enable Acoustic noise mitigation
- Set slow slew rate VCCIA and VCCGT to SLEW_FAST_4
- Set FastPkgCRampDisable VCCIA and VCCGT to 1
BUG=b:376165743
TEST=built firmware and verified by power team,
the acoustic noise can be improved a lot.
Change-Id: Ia71985ef21d634763fc5ae22e4f611f7f5e9652a
Signed-off-by: David Wu <david_wu(a)quanta.corp-partner.google.com>
---
M src/mainboard/google/brya/variants/riven/overridetree.cb
1 file changed, 7 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/08/84908/3
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hualin wei has posted comments on this change by hualin wei. ( https://review.coreboot.org/c/coreboot/+/84898?usp=email )
Change subject: mb/google/dedede/var/awasuki: Decrease touchpad I2C freq below 400 kHz
......................................................................
Patch Set 4:
(3 comments)
Commit Message:
https://review.coreboot.org/c/coreboot/+/84898/comment/24c847a9_c16d7b18?us… :
PS3, Line 7: Adjust touchpad I2C frequency
> Maybe: […]
Done
https://review.coreboot.org/c/coreboot/+/84898/comment/d532b036_a3790298?us… :
PS3, Line 9: Modify the I2C frequency of the touchpad between 380Khz and 400Khz to meet the spec.
> Please use 72 characters per line.
Done
https://review.coreboot.org/c/coreboot/+/84898/comment/44b9f721_f12fca25?us… :
PS3, Line 17: Check wave form and met the spec.
> Check that the wave form meets the spec.
Done
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Change subject: mb/google/dedede/var/awasuki: Decrease touchpad I2C freq below 400 kHz
......................................................................
mb/google/dedede/var/awasuki: Decrease touchpad I2C freq below 400 kHz
Modify the I2C frequency of the touchpad between 380 Khz and 400 Khz
to meet the spec.
Before:
I2C0 - 420KHz
After:
I2C0 - 390Khz
BUG=b:351968527
TEST=Check that the wave form meets the spec.
Change-Id: I5ccaa3a669e18319311de14833966410c7adf40d
Signed-off-by: Wei Hualin <weihualin(a)huaqin.corp-partner.google.com>
---
M src/mainboard/google/dedede/variants/awasuki/overridetree.cb
1 file changed, 6 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/98/84898/4
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Change subject: soc/intel/pantherlake: Populate and pass DRAM info for SMBIOS
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Patch Set 1: Code-Review+2
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Change subject: mb/google/dedede/var/awasuki: Adjust touchpad I2C frequency
......................................................................
Patch Set 3: Code-Review+1
(3 comments)
Commit Message:
https://review.coreboot.org/c/coreboot/+/84898/comment/0646200b_3e654700?us… :
PS3, Line 7: Adjust touchpad I2C frequency
Maybe:
> Decrease touchpad I2C freq below 400 kHz
https://review.coreboot.org/c/coreboot/+/84898/comment/2bebd86b_8a01be59?us… :
PS3, Line 9: Modify the I2C frequency of the touchpad between 380Khz and 400Khz to meet the spec.
Please use 72 characters per line.
https://review.coreboot.org/c/coreboot/+/84898/comment/744f361a_2ed4a4ee?us… :
PS3, Line 17: Check wave form and met the spec.
Check that the wave form meets the spec.
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Change subject: mb/google/nissa/var/riven: Configure Acoustic noise mitigation
......................................................................
Patch Set 2:
(2 comments)
Commit Message:
https://review.coreboot.org/c/coreboot/+/84908/comment/195e012e_36d9faae?us… :
PS2, Line 9: - Enable Acoustic noise mitigation
: - Set slow slew rate VCCIA and VCCGT to SLEW_FAST_4
: - Set FastPkgCRampDisable VCCIA and VCCGT to 1
How did you determine these values?
https://review.coreboot.org/c/coreboot/+/84908/comment/b73ceef3_969382e1?us… :
PS2, Line 14: TEST=build FW and check fsp log.
Shouldn’t the “noise” also be measured somehow?
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Change subject: mb/google/nissa/var/glassway: Add touch screen ILIT2901 support
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Patch Set 4: Code-Review+1
(1 comment)
Commit Message:
https://review.coreboot.org/c/coreboot/+/84894/comment/e623d64b_345e11fd?us… :
PS4, Line 18: 2. Confirm command evtest and touchscreen function is workable.
Just out of curiosity, and maybe for the future, do the coreboot logs contain the detected touchscreen model? If so, this could be added to the TEST= section.
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