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alistair23-linux
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ALSA: x86: Use runtime PM autosuspend 

This patch adds a few lines to the driver to use autosuspend for the
runtime PM.  It'll become useful with the combination of the keep-link
feature.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
hifive-unleashed-5.1
Takashi Iwai 2017-02-13 09:52:44 +01:00
parent 34371d236e
commit 3002b9fb7c
1 changed files with 18 additions and 4 deletions
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22
sound/x86/intel_hdmi_audio.c
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@ -1082,7 +1082,8 @@ static int had_pcm_open(struct snd_pcm_substream *substream)
return retval;
error:
pm_runtime_put(intelhaddata->dev);
pm_runtime_mark_last_busy(intelhaddata->dev);
pm_runtime_put_autosuspend(intelhaddata->dev);
return retval;
}
@ -1106,7 +1107,8 @@ static int had_pcm_close(struct snd_pcm_substream *substream)
}
spin_unlock_irq(&intelhaddata->had_spinlock);
pm_runtime_put(intelhaddata->dev);
pm_runtime_mark_last_busy(intelhaddata->dev);
pm_runtime_put_autosuspend(intelhaddata->dev);
return 0;
}
@ -1596,7 +1598,8 @@ static void had_audio_wq(struct work_struct *work)
had_process_mode_change(ctx);
}
mutex_unlock(&ctx->mutex);
pm_runtime_put(ctx->dev);
pm_runtime_mark_last_busy(ctx->dev);
pm_runtime_put_autosuspend(ctx->dev);
}
/*
@ -1643,10 +1646,17 @@ static int __maybe_unused hdmi_lpe_audio_suspend(struct device *dev)
return err;
}
static int hdmi_lpe_audio_runtime_resume(struct device *dev)
{
pm_runtime_mark_last_busy(dev);
return 0;
}
static int __maybe_unused hdmi_lpe_audio_resume(struct device *dev)
{
struct snd_intelhad *ctx = dev_get_drvdata(dev);
hdmi_lpe_audio_runtime_resume(dev);
snd_power_change_state(ctx->card, SNDRV_CTL_POWER_D0);
return 0;
}
@ -1799,6 +1809,9 @@ static int hdmi_lpe_audio_probe(struct platform_device *pdev)
pdata->notify_pending = false;
spin_unlock_irq(&pdata->lpe_audio_slock);
pm_runtime_use_autosuspend(&pdev->dev);
pm_runtime_mark_last_busy(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
@ -1827,7 +1840,8 @@ static int hdmi_lpe_audio_remove(struct platform_device *pdev)
static const struct dev_pm_ops hdmi_lpe_audio_pm = {
SET_SYSTEM_SLEEP_PM_OPS(hdmi_lpe_audio_suspend, hdmi_lpe_audio_resume)
SET_RUNTIME_PM_OPS(hdmi_lpe_audio_runtime_suspend, NULL, NULL)
SET_RUNTIME_PM_OPS(hdmi_lpe_audio_runtime_suspend,
hdmi_lpe_audio_runtime_resume, NULL)
};
static struct platform_driver hdmi_lpe_audio_driver = {