4.16-stable review patch. If anyone has any objections, please let me know.
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From: Aaron Ma aaron.ma@canonical.com
commit 5717a09aeaf62d197deba1fc7ccd6bc45f3a9dcc upstream.
Synaptics devices reported it has Intertouch support, and it fails via PS/2 as following logs:
psmouse serio2: Failed to reset mouse on synaptics-pt/serio0 psmouse serio2: Failed to enable mouse on synaptics-pt/serio0
Set these new devices to use SMBus to fix this issue, then they report SMBus version 3 is using, patch: https://patchwork.kernel.org/patch/9989547/ enabled SMBus ver 3 and makes synaptics devices work fine on SMBus mode.
Signed-off-by: Aaron Ma aaron.ma@canonical.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/input/mouse/synaptics.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -174,6 +174,8 @@ static const char * const smbus_pnp_ids[ "LEN004a", /* W541 */ "LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */ "LEN0073", /* X1 Carbon G5 (Elantech) */ + "LEN0092", /* X1 Carbon 6 */ + "LEN0096", /* X280 */ "LEN200f", /* T450s */ NULL };