diff --git a/sound/soc/sof/imx/imx8.c b/sound/soc/sof/imx/imx8.c index 32f852cbba30..c4755c88d492 100644 --- a/sound/soc/sof/imx/imx8.c +++ b/sound/soc/sof/imx/imx8.c @@ -320,7 +320,9 @@ static int imx8_probe(struct snd_sof_dev *sdev) if (ret < 0) goto exit_pdev_unregister; - imx8_enable_clocks(sdev, priv->clks); + ret = imx8_enable_clocks(sdev, priv->clks); + if (ret < 0) + goto exit_pdev_unregister; return 0; @@ -364,6 +366,92 @@ static int imx8_get_bar_index(struct snd_sof_dev *sdev, u32 type) } } +static void imx8_suspend(struct snd_sof_dev *sdev) +{ + int i; + struct imx8_priv *priv = (struct imx8_priv *)sdev->pdata->hw_pdata; + + for (i = 0; i < DSP_MU_CHAN_NUM; i++) + imx_dsp_free_channel(priv->dsp_ipc, i); + + imx8_disable_clocks(sdev, priv->clks); +} + +static int imx8_resume(struct snd_sof_dev *sdev) +{ + struct imx8_priv *priv = (struct imx8_priv *)sdev->pdata->hw_pdata; + int ret; + int i; + + ret = imx8_enable_clocks(sdev, priv->clks); + if (ret < 0) + return ret; + + for (i = 0; i < DSP_MU_CHAN_NUM; i++) + imx_dsp_request_channel(priv->dsp_ipc, i); + + return 0; +} + +static int imx8_dsp_runtime_resume(struct snd_sof_dev *sdev) +{ + int ret; + const struct sof_dsp_power_state target_dsp_state = { + .state = SOF_DSP_PM_D0, + }; + + ret = imx8_resume(sdev); + if (ret < 0) + return ret; + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + +static int imx8_dsp_runtime_suspend(struct snd_sof_dev *sdev) +{ + const struct sof_dsp_power_state target_dsp_state = { + .state = SOF_DSP_PM_D3, + }; + + imx8_suspend(sdev); + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + +static int imx8_dsp_suspend(struct snd_sof_dev *sdev, unsigned int target_state) +{ + const struct sof_dsp_power_state target_dsp_state = { + .state = target_state, + }; + + if (!pm_runtime_suspended(sdev->dev)) + imx8_suspend(sdev); + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + +static int imx8_dsp_resume(struct snd_sof_dev *sdev) +{ + int ret; + const struct sof_dsp_power_state target_dsp_state = { + .state = SOF_DSP_PM_D0, + }; + + ret = imx8_resume(sdev); + if (ret < 0) + return ret; + + if (pm_runtime_suspended(sdev->dev)) { + pm_runtime_disable(sdev->dev); + pm_runtime_set_active(sdev->dev); + pm_runtime_mark_last_busy(sdev->dev); + pm_runtime_enable(sdev->dev); + pm_runtime_idle(sdev->dev); + } + + return snd_sof_dsp_set_power_state(sdev, &target_dsp_state); +} + static struct snd_soc_dai_driver imx8_dai[] = { { .name = "esai0", @@ -389,6 +477,14 @@ static struct snd_soc_dai_driver imx8_dai[] = { }, }; +static int imx8_dsp_set_power_state(struct snd_sof_dev *sdev, + const struct sof_dsp_power_state *target_state) +{ + sdev->dsp_power_state = *target_state; + + return 0; +} + /* i.MX8 ops */ struct snd_sof_dsp_ops sof_imx8_ops = { /* probe and remove */ @@ -441,6 +537,15 @@ struct snd_sof_dsp_ops sof_imx8_ops = { SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, + + /* PM */ + .runtime_suspend = imx8_dsp_runtime_suspend, + .runtime_resume = imx8_dsp_runtime_resume, + + .suspend = imx8_dsp_suspend, + .resume = imx8_dsp_resume, + + .set_power_state = imx8_dsp_set_power_state, }; EXPORT_SYMBOL(sof_imx8_ops); @@ -490,6 +595,15 @@ struct snd_sof_dsp_ops sof_imx8x_ops = { .drv = imx8_dai, .num_drv = ARRAY_SIZE(imx8_dai), + /* PM */ + .runtime_suspend = imx8_dsp_runtime_suspend, + .runtime_resume = imx8_dsp_runtime_resume, + + .suspend = imx8_dsp_suspend, + .resume = imx8_dsp_resume, + + .set_power_state = imx8_dsp_set_power_state, + /* ALSA HW info flags */ .hw_info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |