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intel_adsp: ace: power: prevent HST (HOST) domain power gating #67393

Merged
merged 2 commits into from
Jan 11, 2024
Merged

intel_adsp: ace: power: prevent HST (HOST) domain power gating #67393

merged 2 commits into from
Jan 11, 2024

Commits on Jan 10, 2024

  1. intel_adsp: ace: power: Prevent HST domain power gating 

    This patch introduces power management for the HOST (HST) domain within
the Intel ADSP ACE IP. It adds macros to access the node identifier and
device pointer for the HST power domain and integrates power management
calls into the system initialization and power state transition
functions.

The patch ensures that power gating of the HST domain is prevented when
the primary core of the audio DSP is active. Preventing power gating is
crucial for maintaining the functionality of the HST domain while the
primary DSP core is performing critical tasks.

Signed-off-by: Tomasz Leman <[email protected]>
    @tmleman
    tmleman committed Jan 10, 2024
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  2. intel_adsp: ace15: Enhance HST domain power-down sequence 

    This patch enhances the power-down sequence for the HOST (HST) domain
within the Intel ADSP ACE 1.5 architecture. It introduces a check to
ensure that a specific condition, represented by a magic key value, is
met before disabling the HST domain. This additional verification step
ensures that the HST domain is only powered down when it is safe to do
so, thereby maintaining the stability and reliability of the system.

Signed-off-by: Tomasz Leman <[email protected]>
    @tmleman
    tmleman committed Jan 10, 2024
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