[RFC PATCH v3 06/12] firmware: arm_scmi: Add is_scmi_protocol_device()
From: Peter Hilber <hidden>
Date: 2021-05-11 00:29:27
Also in:
linux-arm-kernel, lkml
Subsystem:
system control & power/management interface (scpi/scmi) message protocol drivers, the rest · Maintainers:
Sudeep Holla, Linus Torvalds
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 <redacted> --- 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 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);
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2.25.1