We need to enable runtime_pm on master device with generic helpers, so that a Slave-initiated wake is propagated to the bus parent.
Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com --- drivers/soundwire/master.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/soundwire/master.c b/drivers/soundwire/master.c index 6be0a027def7..5411791e6aff 100644 --- a/drivers/soundwire/master.c +++ b/drivers/soundwire/master.c @@ -3,6 +3,7 @@
#include <linux/device.h> #include <linux/acpi.h> +#include <linux/pm_runtime.h> #include <linux/soundwire/sdw.h> #include <linux/soundwire/sdw_type.h> #include "bus.h" @@ -14,9 +15,15 @@ static void sdw_master_device_release(struct device *dev) kfree(md); }
+static const struct dev_pm_ops master_dev_pm = { + SET_RUNTIME_PM_OPS(pm_generic_runtime_suspend, + pm_generic_runtime_resume, NULL) +}; + struct device_type sdw_master_type = { .name = "soundwire_master", .release = sdw_master_device_release, + .pm = &master_dev_pm, };
/**