From 4fefc39894d8975d58b02b4b5f635d20891778ca Mon Sep 17 00:00:00 2001
From: Daniel Baluta <daniel.baluta@nxp.com>
Date: Thu, 24 Sep 2020 18:15:17 +0300
Subject: [PATCH] ASoC: SOF: Activate runtime PM with SOF OF device
References: jsc#SLE-16518
Patch-mainline: v5.10-rc1
Git-commit: 4fefc39894d8975d58b02b4b5f635d20891778ca
SOF boots the DSP at probe and keeps it up all the time.
With this change, after booting if no one is using the DSP
the SOF core will turn off the DSP to save power.
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Paul Olaru <paul.olaru@nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20200924151518.15841-2-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/sof/sof-of-dev.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/soc/sof/sof-of-dev.c b/sound/soc/sof/sof-of-dev.c
index f492c5dfa659..de9acc0e33cb 100644
--- a/sound/soc/sof/sof-of-dev.c
+++ b/sound/soc/sof/sof-of-dev.c
@@ -56,7 +56,11 @@ static void sof_of_probe_complete(struct device *dev)
/* allow runtime_pm */
pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(dev);
+ pm_runtime_set_active(dev);
pm_runtime_enable(dev);
+
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
}
static int sof_of_probe(struct platform_device *pdev)
--
2.16.4