Patch "Input: stmfts - fix setting ABS_MT_POSITION_* maximum size" has been added to the 4.13-stable tree

Patch "Input: stmfts - fix setting ABS_MT_POSITION_* maximum size" has been added to the 4.13-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    Input: stmfts - fix setting ABS_MT_POSITION_* maximum size

to the 4.13-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     input-stmfts-fix-setting-abs_mt_position_-maximum-size.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From c9bfb2f0031a2de664147ebbfb90f95bb12fdf79 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Wed, 18 Oct 2017 17:28:36 -0700
Subject: Input: stmfts - fix setting ABS_MT_POSITION_* maximum size

From: Chanwoo Choi <cw00.choi@samsung.com>

commit c9bfb2f0031a2de664147ebbfb90f95bb12fdf79 upstream.

The commit 78bcac7b2ae1e ("Input: add support for the STMicroelectronics
FingerTip touchscreen) used the 'touchscreen_parse_properties()' helper
function in order to get the value of common properties.

But, commit 78bcac7b2ae1e didn't set the capability of ABS_MT_POSITION_*
before calling touchscreen_parse_properties(). In result, the max_x and
max_y of 'struct touchscreen_properties' were not set.

Fixes: 78bcac7b2ae1e ("Input: add support for the STMicroelectronics FingerTip touchscreen")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/input/touchscreen/stmfts.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/input/touchscreen/stmfts.c
+++ b/drivers/input/touchscreen/stmfts.c
@@ -663,12 +663,10 @@ static int stmfts_probe(struct i2c_clien
 	sdata->input->open = stmfts_input_open;
 	sdata->input->close = stmfts_input_close;
 
+	input_set_capability(sdata->input, EV_ABS, ABS_MT_POSITION_X);
+	input_set_capability(sdata->input, EV_ABS, ABS_MT_POSITION_Y);
 	touchscreen_parse_properties(sdata->input, true, &sdata->prop);
 
-	input_set_abs_params(sdata->input, ABS_MT_POSITION_X, 0,
-						sdata->prop.max_x, 0, 0);
-	input_set_abs_params(sdata->input, ABS_MT_POSITION_Y, 0,
-						sdata->prop.max_y, 0, 0);
 	input_set_abs_params(sdata->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
 	input_set_abs_params(sdata->input, ABS_MT_TOUCH_MINOR, 0, 255, 0, 0);
 	input_set_abs_params(sdata->input, ABS_MT_ORIENTATION, 0, 255, 0, 0);


Patches currently in stable-queue which might be from cw00.choi@samsung.com are

queue-4.13/input-stmfts-fix-setting-abs_mt_position_-maximum-size.patch