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authorTim Wawrzynczak <twawrzynczak@chromium.org>2022-07-20 12:30:23 -0600
committerTim Wawrzynczak <twawrzynczak@chromium.org>2022-07-22 02:20:18 +0000
commitc38347873ecea0e38c3fbf5f79f33f13b60dee90 (patch)
treee7c73a74e3214dd1e1f3a08d76aabba8cc9489ac /src/mainboard/google/kahlee/variants/aleena
parent2a59875694a2dad4c41c75e5fe4445e697f1d6ee (diff)
mb/google/brya/acpi: Poll more frequently in GPPL
The full dGPU power-on sequence, when executed from ACPI, is taking roughly 15ms or so, which puts it close to the maximum of 20ms required from the Nvidia spec. Changing the polling period to 100 us instead of 1 ms drastically reduces the time required for this sequence, now taking typically 7 ms or so. This gives a lot more margin during the power on sequence. BUG=b:238466724 TEST=Sequence verified by EE on a scope Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I3ba676c5fac983a0c1ad1d60c3863d06ed33fa27 Reviewed-on: https://review.coreboot.org/c/coreboot/+/66020 Reviewed-by: Subrata Banik <subratabanik@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Diffstat (limited to 'src/mainboard/google/kahlee/variants/aleena')
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