diff mbox series

[RFC,v3,06/12] firmware: arm_scmi: Add is_scmi_protocol_device()

Message ID 20210511002040.802226-7-peter.hilber@opensynergy.com (mailing list archive)
State New, archived
Headers show
Series firmware: arm_scmi: Add virtio transport | expand

Commit Message

Peter Hilber May 11, 2021, 12:20 a.m. UTC 
The scmi-virtio transport driver will need to distinguish SCMI protocol
devices from the SCMI instance device in the chan_setup() and
chan_free() ops. Add this internal helper to be able to distinguish the
two.

Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com>
---
 drivers/firmware/arm_scmi/bus.c    | 5 +++++
 drivers/firmware/arm_scmi/common.h | 2 ++
 2 files changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c
index 784cf0027da3..06148e972d1a 100644
--- a/drivers/firmware/arm_scmi/bus.c
+++ b/drivers/firmware/arm_scmi/bus.c
@@ -134,6 +134,11 @@  static struct bus_type scmi_bus_type = {
 	.remove = scmi_dev_remove,
 };
 
+bool is_scmi_protocol_device(struct device *dev)
+{
+	return dev->bus == &scmi_bus_type;
+}
+
 int scmi_driver_register(struct scmi_driver *driver, struct module *owner,
 			 const char *mod_name)
 {
diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h
index 61b22cdeaeeb..9488c682a51d 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -231,6 +231,8 @@  struct scmi_protocol {
 	const struct scmi_protocol_events	*events;
 };
 
+bool is_scmi_protocol_device(struct device *dev);
+
 int __init scmi_bus_init(void);
 void __exit scmi_bus_exit(void);