From c4b299105e74f7863b2aa63bd838e7762761629c Mon Sep 17 00:00:00 2001 From: Peter Hilber Date: Thu, 5 Nov 2020 22:21:14 +0100 Subject: [PATCH] firmware: arm_scmi: Add is_scmi_protocol_device() 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 Signed-off-by: Vasyl Vavrychuk --- 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);