Input: synaptics - Lenovo Thinkpad X1 Carbon G5 (2017) with Elantech trackpoints should use RMI

Lenovo use two different trackpoints in the fifth generation Thinkpad X1
Carbon. Both are accessible over SMBUS/RMI but the pnpIDs are missing.
This patch is for the Elantech trackpoint specifically which also
reports SMB version 3 so rmi_smbus needs to be updated in order to
handle it.

For the record, I was not the first one to come up with this patch as it
has been floating around the internet for a while now. However, I have
spent significant time with testing and my efforts to find the original
author of the patch have been unsuccessful.

Signed-off-by: Edvard Holst <edvard.holst@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Edvard Holst 2018-02-03 11:46:15 -08:00 committed by Dmitry Torokhov
parent 9b2071028f
commit 15e2cffec3

View file

@ -173,6 +173,7 @@ static const char * const smbus_pnp_ids[] = {
"LEN0046", /* X250 */ "LEN0046", /* X250 */
"LEN004a", /* W541 */ "LEN004a", /* W541 */
"LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */ "LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */
"LEN0073", /* X1 Carbon G5 (Elantech) */
"LEN200f", /* T450s */ "LEN200f", /* T450s */
NULL NULL
}; };