From 4fefc39894d8975d58b02b4b5f635d20891778ca Mon Sep 17 00:00:00 2001 From: Daniel Baluta Date: Thu, 24 Sep 2020 18:15:17 +0300 Subject: [PATCH] ASoC: SOF: Activate runtime PM with SOF OF device 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 Reviewed-by: Paul Olaru Reviewed-by: Pierre-Louis Bossart Signed-off-by: Daniel Baluta Link: https://lore.kernel.org/r/20200924151518.15841-2-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown --- 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 f492c5dfa659a..de9acc0e33cb9 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) -- 2.30.2