From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Wed, 19 Oct 2016 21:06:24 +0000 (-0300)
Subject: UPSTREAM: PM / devfreq: rk3399_dmc: Fix module autoload
X-Git-Tag: firefly_0821_release~203
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c7f2c5a670e5c14278e79bce980d799b10be53bb;hp=aa28f75e56114ba98dc9163a1a40d40e00926b9f;p=firefly-linux-kernel-4.4.55.git

UPSTREAM: PM / devfreq: rk3399_dmc: Fix module autoload

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/devfreq/rk3399_dmc.ko | grep alias
$

After this patch:

$ modinfo drivers/devfreq/rk3399_dmc.ko | grep alias
alias:          of:N*T*Crockchip,rk3399-dmcC*
alias:          of:N*T*Crockchip,rk3399-dmc

Change-Id: I4bffd86067bb487619ce8365532123938a0ca964
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
(cherry picked from commit 2f3f1a261c0f4827bda86009f0059aefbe30ed11)
---

diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index 9180a256cb1d..3dc3b99fc61f 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -481,6 +481,7 @@ static const struct of_device_id rk3399dmc_devfreq_of_match[] = {
 	{ .compatible = "rockchip,rk3399-dmc" },
 	{ },
 };
+MODULE_DEVICE_TABLE(of, rk3399dmc_devfreq_of_match);
 
 static struct platform_driver rk3399_dmcfreq_driver = {
 	.probe	= rk3399_dmcfreq_probe,