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Date: Sun, 11 Nov 2018 19:49:05 +0000
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Aaron Ma" <aaron.ma@...onical.com>,
"Dmitry Torokhov" <dmitry.torokhov@...il.com>,
"Benjamin Tissoires" <benjamin.tissoires@...hat.com>
Subject: [PATCH 3.16 177/366] Input: elantech - enable middle button of
touchpads on ThinkPad P52
3.16.61-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Aaron Ma <aaron.ma@...onical.com>
commit 24bb555e6e46d96e2a954aa0295029a81cc9bbaa upstream.
PNPID is better way to identify the type of touchpads.
Enable middle button support on 2 types of touchpads on Lenovo P52.
Signed-off-by: Aaron Ma <aaron.ma@...onical.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
drivers/input/mouse/elantech.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1080,6 +1080,12 @@ static const struct dmi_system_id elante
{ }
};
+static const char * const middle_button_pnp_ids[] = {
+ "LEN2131", /* ThinkPad P52 w/ NFC */
+ "LEN2132", /* ThinkPad P52 */
+ NULL
+};
+
/*
* Set the appropriate event bits for the input subsystem
*/
@@ -1099,7 +1105,8 @@ static int elantech_set_input_params(str
__clear_bit(EV_REL, dev->evbit);
__set_bit(BTN_LEFT, dev->keybit);
- if (dmi_check_system(elantech_dmi_has_middle_button))
+ if (dmi_check_system(elantech_dmi_has_middle_button) ||
+ psmouse_matches_pnp_id(psmouse, middle_button_pnp_ids))
__set_bit(BTN_MIDDLE, dev->keybit);
__set_bit(BTN_RIGHT, dev->keybit);
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