slim: core: add support to uevents

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/slimbus/core.c b/drivers/slimbus/core.c
index 95b00d28ad6e2..1dbdcde7985a1 100644
--- 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"
@@ -57,11 +58,29 @@ 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:%x:%x:%x:%x",
+				  sbdev->e_addr.manf_id,
+				  sbdev->e_addr.prod_code,
+				  sbdev->e_addr.dev_index,
+				  sbdev->e_addr.instance);
+
+}
+
 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);