From: Pan Xiuli <xiuli.pan@xxxxxxxxxxxxxxx> [ Upstream commit f1b1b9b136827915624136624ff54aba5890a15b ] If last_busy value is not set at runtime PM enable, the device will be suspend immediately after usage counter is 0. Set the last_busy value to make sure delay is working at first boot up. Signed-off-by: Pan Xiuli <xiuli.pan@xxxxxxxxxxxxxxx> Signed-off-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20190722141402.7194-2-pierre-louis.bossart@xxxxxxxxxxxxxxx Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- sound/soc/sof/sof-pci-dev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/sof/sof-pci-dev.c b/sound/soc/sof/sof-pci-dev.c index 65d1bac4c6b8b..6fd3df7c57a3a 100644 --- a/sound/soc/sof/sof-pci-dev.c +++ b/sound/soc/sof/sof-pci-dev.c @@ -223,6 +223,9 @@ static void sof_pci_probe_complete(struct device *dev) */ pm_runtime_allow(dev); + /* mark last_busy for pm_runtime to make sure not suspend immediately */ + pm_runtime_mark_last_busy(dev); + /* follow recommendation in pci-driver.c to decrement usage counter */ pm_runtime_put_noidle(dev); } -- 2.20.1
