Attention is currently required from: Henry Sun, Paul Menzel, Aseda Aboagye, Simon Yang, Karthik Ramasubramanian. Teddy Shih has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62776 )
Change subject: mb/google/dedede/var/beadrix: Update PCIe and SATA pins for low power consumption ......................................................................
Patch Set 3: Code-Review+1
(1 comment)
Commit Message:
https://review.coreboot.org/c/coreboot/+/62776/comment/a7c109e4_5902cdef PS2, Line 11: After we disable unused PCIe and SATA : pins, the measured power consumption meets Intel reuqired low power : consumption.
Please document the exact numbers.
Hi Paul,
Thank you for your advice.
+ Original measured high power consumption ~ 250 mW "According to back and forth mail communication, so far ECS can't enter S0ix successfully and still under debugging (Power consumption is around 250mw)." (https://partnerissuetracker.corp.google.com/issues/216050967#comment1)
+ After apply this CL, as well as, the other CL of MUX (3487086: USB MUX: Update low power mode of MUX anx7447 used as MUX only | https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3487086), measured power consumption, at S0ix of power state, achieves: 1. Wifi RTL8822 => measured ~110 mW 2. Wifi AX201 (higher power) => measured ~116 mW
+ Google battery lifetime requiremnt at S0ix of power state: "Starting with a fully-charged battery, the Chrome device MUST remain operational for 14 days in the Suspend state. This state is S0ix or S3." (https://chromeos.google.com/partner/dlm/docs/latest-requirements/chromebook....)
+ Intel power consumption requiremnt: < 116 mW (42000 mWh * 0.93 % (measured battery capacity)) / (14 days * 24 hrs) = 116.25 mW
+ As a result, I also update commit message.