From: Dr. H. Nikolaus Schaller <hns@goldelico.com>
Date: Fri, 25 Apr 2014 06:43:36 +0000 (-0700)
Subject: Input: tca8418 - fix loading this driver as a module from a device tree
X-Git-Tag: v4.9.8~2718^2~202
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c16134976fb27d325ae037a8b39b537a77ba1d12;p=platform%2Fkernel%2Flinux-rpi3.git

Input: tca8418 - fix loading this driver as a module from a device tree

Loading the tca8418 driver as a module on a device tree based system needs
a MODULE_ALIAS because the driver name does not match the automatic
name generation rules of a 'compatible' entry on i2c bus.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
index 55c1530..4e491c1 100644
--- a/drivers/input/keyboard/tca8418_keypad.c
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -392,6 +392,13 @@ static const struct of_device_id tca8418_dt_ids[] = {
 	{ }
 };
 MODULE_DEVICE_TABLE(of, tca8418_dt_ids);
+
+/*
+ * The device tree based i2c loader looks for
+ * "i2c:" + second_component_of(property("compatible"))
+ * and therefore we need an alias to be found.
+ */
+MODULE_ALIAS("i2c:tca8418");
 #endif
 
 static struct i2c_driver tca8418_keypad_driver = {