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| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2017-06-28 23:53:23 +0200 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2017-06-29 06:49:24 +0200 |
| commit | f4ce85281139214cd50900d0ff38b7d97766318f (patch) | |
| tree | 997573742e93b02c14df766bc912a751a6ffdb68 /drivers/rpmsg | |
| parent | rpmsg: Drop VIRTUALIZATION dependency from RPMSG_VIRTIO (diff) | |
| download | linux-f4ce85281139214cd50900d0ff38b7d97766318f.tar.xz linux-f4ce85281139214cd50900d0ff38b7d97766318f.zip | |
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: Rob Clark <robdclark@gmail.com>
Reported-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/rpmsg')
| -rw-r--r-- | drivers/rpmsg/rpmsg_core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c index c89edaf6133b..c8a1327bf144 100644 --- a/drivers/rpmsg/rpmsg_core.c +++ b/drivers/rpmsg/rpmsg_core.c @@ -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); |