diff options
Diffstat (limited to 'sound/soc/sof/pm.c')
| -rw-r--r-- | sound/soc/sof/pm.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index c410822d9920..92e5f9b15f3a 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) // // This file is provided under a dual BSD/GPLv2 license. When using or // redistributing this file, you may do so under either license. @@ -90,7 +90,10 @@ static int sof_resume(struct device *dev, bool runtime_resume) int ret; /* do nothing if dsp resume callbacks are not set */ - if (!sof_ops(sdev)->resume || !sof_ops(sdev)->runtime_resume) + if (!runtime_resume && !sof_ops(sdev)->resume) + return 0; + + if (runtime_resume && !sof_ops(sdev)->runtime_resume) return 0; /* DSP was never successfully started, nothing to resume */ @@ -111,8 +114,12 @@ static int sof_resume(struct device *dev, bool runtime_resume) return ret; } - /* Nothing further to do if resuming from a low-power D0 substate */ - if (!runtime_resume && old_state == SOF_DSP_PM_D0) + /* + * Nothing further to be done for platforms that support the low power + * D0 substate. + */ + if (!runtime_resume && sof_ops(sdev)->set_power_state && + old_state == SOF_DSP_PM_D0) return 0; sdev->fw_state = SOF_FW_BOOT_PREPARE; @@ -175,7 +182,10 @@ static int sof_suspend(struct device *dev, bool runtime_suspend) int ret; /* do nothing if dsp suspend callback is not set */ - if (!sof_ops(sdev)->suspend) + if (!runtime_suspend && !sof_ops(sdev)->suspend) + return 0; + + if (runtime_suspend && !sof_ops(sdev)->runtime_suspend) return 0; if (sdev->fw_state != SOF_FW_BOOT_COMPLETE) @@ -250,6 +260,15 @@ suspend: return ret; } +int snd_sof_dsp_power_down_notify(struct snd_sof_dev *sdev) +{ + /* Notify DSP of upcoming power down */ + if (sof_ops(sdev)->remove) + return sof_send_pm_ctx_ipc(sdev, SOF_IPC_PM_CTX_SAVE); + + return 0; +} + int snd_sof_runtime_suspend(struct device *dev) { return sof_suspend(dev, true); |