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author | Ulf Hansson <ulf.hansson@linaro.org> | 2020-06-15 16:36:02 +0200 |
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committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-06-15 16:36:02 +0200 |
commit | 95e364235c004ec90ba2048c6160ac9c4ebeabc1 (patch) | |
tree | c9218c12b7640ed964553c3b8965fc2c86deb5da /net/dccp | |
parent | 4fa11c7a493975d2027c6e85947c4f9813d8ff38 (diff) |
cpuidle: psci: Prevent domain idlestates until consumers are ready
Depending on the SoC/platform, additional devices may be part of the PSCI
PM domain topology. This is the case with 'qcom,rpmh-rsc' device, for
example, even if this is not yet visible in the corresponding DTS-files.
Without going into too much details, a device like the 'qcom,rpmh-rsc' may
have HW constraints that needs to be obeyed to, before a domain idlestate
can be picked.
Therefore, let's implement the ->sync_state() callback to receive a
notification when all consumers of the PSCI PM domain providers have been
attached/probed to it. In this way, we can make sure all constraints from
all relevant devices, are taken into account before allowing a domain
idlestate to be picked.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'net/dccp')
0 files changed, 0 insertions, 0 deletions