slimbus: core: add support to uevent

This patch adds support to uevent to help automatic module loading.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/slimbus/core.c b/drivers/slimbus/core.c
index 1888fafc0e73b0bfd0a827dacf04e0ea4108f14d..55eda5863a6b90e2f37ce5fe5dcecf277043e679 100644 (file)
--- a/drivers/slimbus/core.c
+++ b/drivers/slimbus/core.c
@@ -9,6 +9,7 @@
 #include <linux/init.h>
 #include <linux/idr.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slimbus.h>
 #include "slimbus.h"
@@ -76,11 +77,24 @@ static int slim_device_remove(struct device *dev)
        return 0;
 }
 
+static int slim_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+       struct slim_device *sbdev = to_slim_device(dev);
+       int ret;
+
+       ret = of_device_uevent_modalias(dev, env);
+       if (ret != -ENODEV)
+               return ret;
+
+       return add_uevent_var(env, "MODALIAS=slim:%s", dev_name(&sbdev->dev));
+}
+
 struct bus_type slimbus_bus = {
        .name           = "slimbus",
        .match          = slim_device_match,
        .probe          = slim_device_probe,
        .remove         = slim_device_remove,
+       .uevent         = slim_device_uevent,
 };
 EXPORT_SYMBOL_GPL(slimbus_bus);