diff options
Diffstat (limited to 'sound/soc/sof/pm.c')
| -rw-r--r-- | sound/soc/sof/pm.c | 92 |
1 files changed, 10 insertions, 82 deletions
diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index bec25cb6beec..c410822d9920 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -86,7 +86,7 @@ static void sof_cache_debugfs(struct snd_sof_dev *sdev) static int sof_resume(struct device *dev, bool runtime_resume) { struct snd_sof_dev *sdev = dev_get_drvdata(dev); - enum sof_d0_substate old_d0_substate = sdev->d0_substate; + u32 old_state = sdev->dsp_power_state.state; int ret; /* do nothing if dsp resume callbacks are not set */ @@ -97,17 +97,6 @@ static int sof_resume(struct device *dev, bool runtime_resume) if (sdev->first_boot) return 0; - /* resume from D0I3 */ - if (!runtime_resume && old_d0_substate == SOF_DSP_D0I3) { - ret = snd_sof_set_d0_substate(sdev, SOF_DSP_D0I0); - if (ret < 0 && ret != -ENOTSUPP) { - dev_err(sdev->dev, - "error: failed to resume from D0I3 %d\n", - ret); - return ret; - } - } - /* * if the runtime_resume flag is set, call the runtime_resume routine * or else call the system resume routine @@ -122,8 +111,8 @@ static int sof_resume(struct device *dev, bool runtime_resume) return ret; } - /* Nothing further to do if resuming from D0I3 */ - if (!runtime_resume && old_d0_substate == SOF_DSP_D0I3) + /* Nothing further to do if resuming from a low-power D0 substate */ + if (!runtime_resume && old_state == SOF_DSP_PM_D0) return 0; sdev->fw_state = SOF_FW_BOOT_PREPARE; @@ -176,15 +165,13 @@ static int sof_resume(struct device *dev, bool runtime_resume) "error: ctx_restore ipc error during resume %d\n", ret); - /* initialize default D0 sub-state */ - sdev->d0_substate = SOF_DSP_D0I0; - return ret; } static int sof_suspend(struct device *dev, bool runtime_suspend) { struct snd_sof_dev *sdev = dev_get_drvdata(dev); + u32 target_state = 0; int ret; /* do nothing if dsp suspend callback is not set */ @@ -205,18 +192,11 @@ static int sof_suspend(struct device *dev, bool runtime_suspend) } } - if (snd_sof_dsp_power_target(sdev) == SOF_DSP_PM_D0) { - /* suspend to D0i3 */ - ret = snd_sof_set_d0_substate(sdev, SOF_DSP_D0I3); - if (ret < 0) { - dev_err(sdev->dev, "error: failed to enter D0I3, %d\n", - ret); - return ret; - } + target_state = snd_sof_dsp_power_target(sdev); - /* Skip to platform-specific suspend if DSP is entering D0I3 */ + /* Skip to platform-specific suspend if DSP is entering D0 */ + if (target_state == SOF_DSP_PM_D0) goto suspend; - } /* release trace */ snd_sof_release_trace(sdev); @@ -254,14 +234,14 @@ suspend: if (runtime_suspend) ret = snd_sof_dsp_runtime_suspend(sdev); else - ret = snd_sof_dsp_suspend(sdev); + ret = snd_sof_dsp_suspend(sdev, target_state); if (ret < 0) dev_err(sdev->dev, "error: failed to power down DSP during suspend %d\n", ret); - /* Do not reset FW state if DSP is in D0I3 */ - if (sdev->d0_substate == SOF_DSP_D0I3) + /* Do not reset FW state if DSP is in D0 */ + if (target_state == SOF_DSP_PM_D0) return ret; /* reset FW state */ @@ -290,58 +270,6 @@ int snd_sof_runtime_resume(struct device *dev) } EXPORT_SYMBOL(snd_sof_runtime_resume); -int snd_sof_set_d0_substate(struct snd_sof_dev *sdev, - enum sof_d0_substate d0_substate) -{ - int ret; - - if (sdev->d0_substate == d0_substate) - return 0; - - /* do platform specific set_state */ - ret = snd_sof_dsp_set_power_state(sdev, d0_substate); - if (ret < 0) - return ret; - - /* update dsp D0 sub-state */ - sdev->d0_substate = d0_substate; - - return 0; -} -EXPORT_SYMBOL(snd_sof_set_d0_substate); - -/* - * Audio DSP states may transform as below:- - * - * D0I3 compatible stream - * Runtime +---------------------+ opened only, timeout - * suspend | +--------------------+ - * +------------+ D0(active) | | - * | | <---------------+ | - * | +--------> | | | - * | |Runtime +--^--+---------^--+--+ The last | | - * | |resume | | | | opened D0I3 | | - * | | | | | | compatible | | - * | | resume| | | | stream closed | | - * | | from | | D3 | | | | - * | | D3 | |suspend | | d0i3 | | - * | | | | | |suspend | | - * | | | | | | | | - * | | | | | | | | - * +-v---+-----------+--v-------+ | | +------+----v----+ - * | | | +-----------> | - * | D3 (suspended) | | | D0I3 +-----+ - * | | +--------------+ | | - * | | resume from | | | - * +-------------------^--------+ d0i3 suspend +----------------+ | - * | | - * | D3 suspend | - * +------------------------------------------------+ - * - * d0i3_suspend = s0_suspend && D0I3 stream opened, - * D3 suspend = !d0i3_suspend, - */ - int snd_sof_resume(struct device *dev) { return sof_resume(dev, false); |