spmi: Include OF based modalias in device uevent

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>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/spmi/spmi.c b/drivers/spmi/spmi.c
index 2b9b094..6d23226 100644 (file)
--- a/drivers/spmi/spmi.c
+++ b/drivers/spmi/spmi.c
@@ -365,11 +365,23 @@ 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,
 };
 
 /**