diff options
| author | Daniel Baluta <daniel.baluta@nxp.com> | 2020-06-11 16:43:16 +0300 |
|---|---|---|
| committer | Daniel Baluta <daniel.baluta@nxp.com> | 2020-06-11 16:50:22 +0300 |
| commit | 89d64ed05dabd5f96f7f3d9ef70f81e816f3feaa (patch) | |
| tree | fac8f8a982cb8e0992cd0b323a0646372a992118 /sound/soc/sof | |
| parent | f7b437ebaa48611ff54893e61aa3ca88eb2360c4 (diff) | |
MLK-24263-8 ASoC: SOF: Add support for system / runtime PM on i.MX8
Similar with commit a4c2646bc92 ("MLK-24263-5 ASoC: SOF: Add support for system / runtime PM")
this adds the system/runtime PM handlers.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Diffstat (limited to 'sound/soc/sof')
| -rw-r--r-- | sound/soc/sof/imx/imx8.c | 55 |
1 files changed, 51 insertions, 4 deletions
diff --git a/sound/soc/sof/imx/imx8.c b/sound/soc/sof/imx/imx8.c index 080da33ff5ba..f6d934f8358e 100644 --- a/sound/soc/sof/imx/imx8.c +++ b/sound/soc/sof/imx/imx8.c @@ -42,6 +42,7 @@ struct imx8_priv { struct device *dev; struct snd_sof_dev *sdev; + bool suspended; /* DSP IPC handler */ struct imx_dsp_ipc *dsp_ipc; @@ -378,18 +379,64 @@ static int imx8_ipc_pcm_params(struct snd_sof_dev *sdev, return 0; } +int imx8_resume(struct snd_sof_dev *sdev) +{ + struct imx8_priv *priv = (struct imx8_priv *)sdev->private; + int i; + + for (i = 0; i < DSP_MU_CHAN_NUM; i++) + imx_dsp_request_channel(priv->dsp_ipc, i); + + return 0; +} + +int imx8_suspend(struct snd_sof_dev *sdev) +{ + struct imx8_priv *priv = (struct imx8_priv *)sdev->private; + int i; + + for (i = 0; i < DSP_MU_CHAN_NUM; i++) + imx_dsp_free_channel(priv->dsp_ipc, i); + + return 0; +} + +int imx8_dsp_runtime_resume(struct snd_sof_dev *sdev) +{ + return imx8_resume(sdev); +} + +int imx8_dsp_runtime_suspend(struct snd_sof_dev *sdev) +{ + + return imx8_suspend(sdev); +} + int imx8_dsp_resume(struct snd_sof_dev *sdev) { - /* nothing to do for now */ + struct imx8_priv *priv = (struct imx8_priv *)sdev->private; + + if (priv->suspended) { + imx8_resume(sdev); + priv->suspended = false; + } + return 0; } int imx8_dsp_suspend(struct snd_sof_dev *sdev) { - /* nothing to do for now */ + struct imx8_priv *priv = (struct imx8_priv *)sdev->private; + + if (!priv->suspended) { + imx8_suspend(sdev); + priv->suspended = true; + } + return 0; } + static struct snd_soc_dai_driver imx8_dai[] = { { .name = "esai-port", @@ -430,8 +477,8 @@ struct snd_sof_dsp_ops sof_imx8_ops = { /* PM */ .suspend = imx8_dsp_suspend, .resume = imx8_dsp_resume, - .runtime_suspend = imx8_dsp_suspend, - .runtime_resume = imx8_dsp_resume, + .runtime_suspend = imx8_dsp_runtime_suspend, + .runtime_resume = imx8_dsp_runtime_resume, /* ALSA HW info flags */ .hw_info = SNDRV_PCM_INFO_MMAP | |