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firmware: arm_scmi: Emit modalias for SCMI devices

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In order to enable libkmod lookups for SCMI device objects to their
corresponding module, add 'modalias' to the base attribute of SCMI
devices.

Message-Id: <20250131141822.514342-3-sudeep.holla@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Sudeep Holla 2025-01-31 14:18:22 +00:00
parent feaea74fd6
commit d069c33f5c
1 changed files with 12 additions and 0 deletions
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12
drivers/firmware/arm_scmi/bus.c
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@ -287,6 +287,17 @@ static int scmi_device_uevent(const struct device *dev, struct kobj_uevent_env *
scmi_dev->name);
}
static ssize_t modalias_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct scmi_device *scmi_dev = to_scmi_dev(dev);
return sysfs_emit(buf, SCMI_UEVENT_MODALIAS_FMT,
dev_name(&scmi_dev->dev), scmi_dev->protocol_id,
scmi_dev->name);
}
static DEVICE_ATTR_RO(modalias);
static ssize_t protocol_id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@ -308,6 +319,7 @@ static DEVICE_ATTR_RO(name);
static struct attribute *scmi_device_attributes_attrs[] = {
&dev_attr_protocol_id.attr,
&dev_attr_name.attr,
&dev_attr_modalias.attr,
NULL,
};
ATTRIBUTE_GROUPS(scmi_device_attributes);