Commit 3002b9fb authored by Takashi Iwai's avatar Takashi Iwai
Browse files

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: default avatarTakashi Iwai <tiwai@suse.de>
parent 34371d23

sound/x86/intel_hdmi_audio.c

+18 −4
Original line number Diff line number Diff line
@@ -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 = {