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config: ace: enable dynamic clock switching
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Enable the dynamic clock switching feature for Intel ADSP platforms. This
feature allows the DSP to adjust its clock frequency dynamically when all
cores enter the idle state, reducing energy consumption while waiting for
interrupts.

The following Kconfig options are added to MTL and LNL configuration:

- CONFIG_PM_STATE_CUSTOM_DATA: Allows setting custom data pointers for
  specific power states.
- CONFIG_ADSP_DYNAMIC_CLOCK_SWITCHING: Enables dynamic clock switching
  during idle states, dependent on the availability of custom power state
  data.

This change is part of ongoing efforts to enhance power management
capabilities and improve the energy efficiency of these platforms.

Signed-off-by: Tomasz Leman <[email protected]>
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tmleman committed Jan 23, 2024
1 parent ef2235f commit 8d5e0aa
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Showing 2 changed files with 4 additions and 0 deletions.
2 changes: 2 additions & 0 deletions app/boards/intel_adsp_ace15_mtpm.conf
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@ CONFIG_PM_DEVICE_RUNTIME=y
CONFIG_PM_DEVICE_RUNTIME_EXCLUSIVE=n
CONFIG_PM_DEVICE_POWER_DOMAIN=y
CONFIG_PM_POLICY_CUSTOM=y
CONFIG_PM_STATE_CUSTOM_DATA=y
CONFIG_ADSP_DYNAMIC_CLOCK_SWITCHING=y

CONFIG_POWER_DOMAIN=y
CONFIG_POWER_DOMAIN_INTEL_ADSP=y
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2 changes: 2 additions & 0 deletions app/boards/intel_adsp_ace20_lnl.conf
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@ CONFIG_PM_DEVICE_RUNTIME=y
CONFIG_PM_DEVICE_RUNTIME_EXCLUSIVE=n
CONFIG_PM_DEVICE_POWER_DOMAIN=y
CONFIG_PM_POLICY_CUSTOM=y
CONFIG_PM_STATE_CUSTOM_DATA=y
CONFIG_ADSP_DYNAMIC_CLOCK_SWITCHING=y
CONFIG_ADSP_IMR_CONTEXT_SAVE=y
CONFIG_ADSP_IDLE_CLOCK_GATING=y

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