[RFC PATCH v2 08/10] firmware: arm_scmi: Add is_scmi_protocol_device()
From: Peter Hilber <hidden>
Date: 2020-11-05 21:28:20
Also in:
linux-devicetree, 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 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
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