From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Thu, 29 Jun 2017 21:46:44 +0000 (-0700)
Subject: spmi: Include OF based modalias in device uevent
X-Git-Tag: v4.4.79~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6dbd8f73a28e850a7b846376be9e104d93bb3559;p=thirdparty%2Fkernel%2Fstable.git

spmi: Include OF based modalias in device uevent

commit d50daa2af2618dab6d21634e65a5fbcf4ae437d6 upstream.

Include the OF-based modalias in the uevent sent when registering SPMI
devices, so that user space has a chance to autoload the kernel module
for the device.

Tested-by: Rob Clark <robdclark@gmail.com>
Reported-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/spmi/spmi.c b/drivers/spmi/spmi.c
index 6b3da1bb0d636..2db681722d2c8 100644
--- a/drivers/spmi/spmi.c
+++ b/drivers/spmi/spmi.c
@@ -364,11 +364,23 @@ static int spmi_drv_remove(struct device *dev)
 	return 0;
 }
 
+static int spmi_drv_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	int ret;
+
+	ret = of_device_uevent_modalias(dev, env);
+	if (ret != -ENODEV)
+		return ret;
+
+	return 0;
+}
+
 static struct bus_type spmi_bus_type = {
 	.name		= "spmi",
 	.match		= spmi_device_match,
 	.probe		= spmi_drv_probe,
 	.remove		= spmi_drv_remove,
+	.uevent		= spmi_drv_uevent,
 };
 
 /**