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@xxxxxxxxxxxxxxx>
---
drivers/firmware/arm_scmi/bus.c | 5 +++++
drivers/firmware/arm_scmi/common.h | 2 ++
2 files changed, 7 insertions(+)
diff --git a/drivers/firmware/arm_scmi/bus.c b/drivers/firmware/arm_scmi/bus.c
index 1377ec76a45d..4f19faafb2c5 100644
--- a/drivers/firmware/arm_scmi/bus.c
+++ b/drivers/firmware/arm_scmi/bus.c
@@ -108,6 +108,11 @@ 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 ec9fd7fce3c7..13c9ac176b23 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -158,6 +158,8 @@ int scmi_version_get(const struct scmi_handle *h, u8 protocol, u32 *version);
void scmi_setup_protocol_implemented(const struct scmi_handle *handle,
u8 *prot_imp);
+bool is_scmi_protocol_device(struct device *dev);
+
int scmi_base_protocol_init(struct scmi_handle *h);
int __init scmi_bus_init(void);
--
2.25.1
