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| author |   Dmitry Osipenko <digetx@gmail.com> | 2019-07-30 20:23:40 +0300 |
|---|---|---|
| committer |   Thierry Reding <treding@nvidia.com> | 2019-10-29 14:32:01 +0100 |
| commit | 91d7ff5aa7e3edd9ab99a424099476ed5667b152 (patch) | |
| tree | 2998c7783986f45ffcf8f1d9b6912220d5c74053 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ARM: tegra: Fix FLOW_CTLR_HALT register clobbering by tegra_resume() (diff) | |
| download | linux-rng-91d7ff5aa7e3edd9ab99a424099476ed5667b152.tar.xz linux-rng-91d7ff5aa7e3edd9ab99a424099476ed5667b152.zip | |
ARM: tegra: Use WFE for power-gating on Tegra30
Turned out that WFI doesn't work reliably on Tegra30 as a trigger for
the power-gating, it causes CPU hang under some circumstances like having
memory controller running of PLLP. The TRM doc states that WFI should be
used for the Big-Little "Cluster Switch", while WFE for the power-gating.
Hence let's use the WFE for CPU0 power-gating, like it is done for the
power-gating of a secondary cores. This fixes CPU hang after entering LP2
with memory running off PLLP.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions