From: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Date: Sat, 16 May 2009 02:14:35 +0000 (-0700)
Subject: Input: tsc2007 - make sure platform provides get_pendown_state()
X-Git-Tag: firefly_0821_release~12966^2~42
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=78f7f36711396991431a1d7ceab6103d2c54694c;p=firefly-linux-kernel-4.4.55.git

Input: tsc2007 - make sure platform provides get_pendown_state()

The platform codes must provide get_pendown_state() for the driver
to work properly.

Signed-off-by: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index 536668fbda22..edd4f64d1f43 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -256,7 +256,7 @@ static int tsc2007_probe(struct i2c_client *client,
 	struct input_dev *input_dev;
 	int err;
 
-	if (!pdata) {
+	if (!pdata || !pdata->get_pendown_state) {
 		dev_err(&client->dev, "platform data is required!\n");
 		return -EINVAL;
 	}