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Commit f4ce8528 authored by Bjorn Andersson's avatar Bjorn Andersson
Browse files

rpmsg: Make modalias work for DeviceTree based devices 



When rpmsg devices are expected to be matched based on their compatible
the modalias should reflect this, so that module autoloading has a
chance to match and load the appropriate module.

Tested-by: default avatarRob Clark <robdclark@gmail.com>
Reported-by: default avatarRob Clark <robdclark@gmail.com>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 82e484df

drivers/rpmsg/rpmsg_core.c

+10 −0
Original line number Diff line number Diff line
@@ -342,6 +342,11 @@ static ssize_t modalias_show(struct device *dev, 
			     struct device_attribute *attr, char *buf)

{

	struct rpmsg_device *rpdev = to_rpmsg_device(dev);

	ssize_t len;



	len = of_device_modalias(dev, buf, PAGE_SIZE);

	if (len != -ENODEV)

		return len;



	return sprintf(buf, RPMSG_DEVICE_MODALIAS_FMT "\n", rpdev->id.name);

}
@@ -384,6 +389,11 @@ static int rpmsg_dev_match(struct device *dev, struct device_driver *drv) 
static int rpmsg_uevent(struct device *dev, struct kobj_uevent_env *env)

{

	struct rpmsg_device *rpdev = to_rpmsg_device(dev);

	int ret;



	ret = of_device_uevent_modalias(dev, env);

	if (ret != -ENODEV)

		return ret;



	return add_uevent_var(env, "MODALIAS=" RPMSG_DEVICE_MODALIAS_FMT,

					rpdev->id.name);