From: Pan Xiuli xiuli.pan@linux.intel.com
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@linux.intel.com Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com --- 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 ffe485f4ba71..3e3ee9c9aefd 100644 --- a/sound/soc/sof/sof-pci-dev.c +++ b/sound/soc/sof/sof-pci-dev.c @@ -232,6 +232,9 @@ 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); }