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>
diff --git a/sound/x86/intel_hdmi_audio.c b/sound/x86/intel_hdmi_audio.c
index 360cff3..d150430 100644
--- a/sound/x86/intel_hdmi_audio.c
+++ b/sound/x86/intel_hdmi_audio.c
@@ -1082,7 +1082,8 @@
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 @@
}
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 @@
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 @@
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 @@
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 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 = {