kernel/linux.git/sound/soc/sof/pm.c, branch v5.10.257

ASoC: SOF: pm: Fix prepare callback behavior for OF usecase

2020-09-21T16:28:10+00:00

On i.MX platforms PM is not managed via ACPI although CONFIG_ACPI can be set. So, in order to correctly set the system target state we introduce a flag for platforms that require to use acpi target states. Signed-off-by: Daniel Baluta Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200921105038.2909899-1-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: support topology components on secondary cores

2020-09-04T09:12:22+00:00

Currently SOF supports running pipelines on secondary DSP cores in a limited way. This patch represents the next step in SOF multi-core DSP support, it adds checks for core ID to individual topology components. It takes care to power up all the requested cores. More advanced DSP core power management should be added in the future. Signed-off-by: Pan Xiuli Signed-off-by: Guennadi Liakhovetski Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Signed-off-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200902140756.1427005-3-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pm: handle resume on legacy Intel platforms

2020-05-27T13:06:54+00:00

Add new case when set_power_state() is not supported, e.g. for Intel Baytrail/Cherrytrail legacy platforms. Signed-off-by: Ranjani Sridharan Signed-off-by: Pierre-Louis Bossart Tested-by: Enric Balletbo i Serra Link: https://lore.kernel.org/r/20200526203640.25980-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: add a power_down_notify method

2020-05-18T12:24:54+00:00

This patch adds a snd_sof_dsp_power_down_notify() method which aims to prepare the DSP for the upcoming power down. This new function make use of SOF_IPC_PM_CTX_SAVE message. Signed-off-by: Marcin Rajwa Signed-off-by: Kai Vehmanen Reviewed-by: Ranjani Sridharan Link: https://lore.kernel.org/r/20200515135958.17511-3-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Do nothing when DSP PM callbacks are not set

2020-05-18T12:24:53+00:00

This provides a better separation between runtime and PM sleep callbacks. Only do nothing if given runtime flag is set and calback is not set. With the current implementation, if PM sleep callback is set but runtime callback is not set then at runtime resume we reload the firmware even if we do not support runtime resume callback. Signed-off-by: Daniel Baluta Signed-off-by: Kai Vehmanen Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Link: https://lore.kernel.org/r/20200515135958.17511-2-kai.vehmanen@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF/Intel: clarify SPDX license with GPL-2.0-only

2020-05-01T16:45:24+00:00

Remove the ambiguity with GPL-2.0 and use an explicit GPL-2.0-only tag. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Daniel Baluta Reviewed-by: Kai Vehmanen Reviewed-by: Guennadi Liakhovetski Link: https://lore.kernel.org/r/20200501145850.15178-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Move DSP power state transitions to platform-specific ops

2020-02-11T11:48:05+00:00

The DSP device substates such as D0I0/D0I3 are platform-specific. Therefore, the d0_substate field of struct snd_sof_dev is replaced with the dsp_power_state field which represents the current state of the DSP. This field holds both the device state and the platform-specific substate values. With the DSP device substates being platform-specific, the DSP power state transitions need to be performed in the platform-specific suspend/resume ops as well. In order to achieve this, the ops signature has to be modified to pass the target device state as an argument. The target substate will be determined by the platform-specific ops before performing the transition. For example, in the case of the system suspending to S0IX, the top-level SOF device suspend callback needs to only determine if the DSP will be entering D3 or remain in D0. The target substate in case the device needs to remain in D0 (D0I0 or D0I3) will be determined by the platform-specific suspend op. With the addition of the extended set of power states for the DSP, the set_power_state op for HDA platforms has to be extended to handle only the appropriate state transitions. So, the implementation for the Intel HDA platforms is also modified. Signed-off-by: Ranjani Sridharan Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200129220726.31792-6-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pm: Introduce DSP power states

2020-02-11T11:48:04+00:00

Add a new enum sof_dsp_power_states for all the possible the DSP device states. The SOF driver currently handles only the D0 and D3 states and support for other states will be added later as needed. Also, add a helper to determine the target DSP power state based on the system suspend target. The snd_sof_dsp_d0i3_on_suspend() function is renamed to snd_sof_stream_suspend_ignored() to be more indicative of what it does and it used to determine the target DSP state during system suspend. Signed-off-by: Ranjani Sridharan Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200129220726.31792-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Add system_suspend_target field to struct snd_sof_dev

2020-02-11T11:48:03+00:00

Add the system_suspend_target field to struct snd_sof_dev to track the intended system suspend power target. This will be used as one of the criteria for determining the final DSP power state. Signed-off-by: Ranjani Sridharan Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200129220726.31792-4-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pm: Unify suspend/resume routines

2020-02-11T11:48:02+00:00

Unify the suspend/resume routines for both the D0I3/D3 DSP targets in sof_suspend()/sof_resume(). Signed-off-by: Ranjani Sridharan Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20200129220726.31792-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown