diff mbox series

[v2,5/5] soundwire: master: add runtime pm support

Message ID 20200518174322.31561-6-yung-chuan.liao@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series soundwire: bus_type: add sdw_master_device support | expand

Commit Message

Bard Liao May 18, 2020, 5:43 p.m. UTC 
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 mbox series

Patch

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,
 };
 
 /**