From: Pan Xiuli <xiuli....@linux.intel.com> [ 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....@linux.intel.com> Signed-off-by: Ranjani Sridharan <ranjani.sridha...@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.boss...@linux.intel.com> Link: https://lore.kernel.org/r/20190722141402.7194-2-pierre-louis.boss...@linux.intel.com Signed-off-by: Mark Brown <broo...@kernel.org> Signed-off-by: Sasha Levin <sas...@kernel.org> --- 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 b778dffb2d25c..49daf1390dac0 100644 --- a/sound/soc/sof/sof-pci-dev.c +++ b/sound/soc/sof/sof-pci-dev.c @@ -203,6 +203,9 @@ 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
