diff options
Diffstat (limited to 'drivers/firmware/arm_ffa/bus.c')
| -rw-r--r-- | drivers/firmware/arm_ffa/bus.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c index 2b8bfcd010f5..1c7940ba5539 100644 --- a/drivers/firmware/arm_ffa/bus.c +++ b/drivers/firmware/arm_ffa/bus.c @@ -15,6 +15,8 @@ #include "common.h" +#define SCMI_UEVENT_MODALIAS_FMT "arm_ffa:%04x:%pUb" + static DEFINE_IDA(ffa_bus_id); static int ffa_device_match(struct device *dev, struct device_driver *drv) @@ -63,10 +65,20 @@ static int ffa_device_uevent(const struct device *dev, struct kobj_uevent_env *e { const struct ffa_device *ffa_dev = to_ffa_dev(dev); - return add_uevent_var(env, "MODALIAS=arm_ffa:%04x:%pUb", + return add_uevent_var(env, "MODALIAS=" SCMI_UEVENT_MODALIAS_FMT, ffa_dev->vm_id, &ffa_dev->uuid); } +static ssize_t modalias_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ffa_device *ffa_dev = to_ffa_dev(dev); + + return sysfs_emit(buf, SCMI_UEVENT_MODALIAS_FMT, ffa_dev->vm_id, + &ffa_dev->uuid); +} +static DEVICE_ATTR_RO(modalias); + static ssize_t partition_id_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -88,6 +100,7 @@ static DEVICE_ATTR_RO(uuid); static struct attribute *ffa_device_attributes_attrs[] = { &dev_attr_partition_id.attr, &dev_attr_uuid.attr, + &dev_attr_modalias.attr, NULL, }; ATTRIBUTE_GROUPS(ffa_device_attributes); @@ -193,6 +206,7 @@ struct ffa_device *ffa_device_register(const uuid_t *uuid, int vm_id, dev->release = ffa_release_device; dev_set_name(&ffa_dev->dev, "arm-ffa-%d", id); + ffa_dev->id = id; ffa_dev->vm_id = vm_id; ffa_dev->ops = ops; uuid_copy(&ffa_dev->uuid, uuid); |