kernel/linux.git/drivers/input/mouse/elantech.c, branch v4.20.9

Input: elantech - disable elan-i2c for P52 and P72

2018-12-21T08:57:01+00:00

The current implementation of elan_i2c is known to not support those 2 laptops. A proper fix is to tweak both elantech and elan_i2c to transmit the correct information from PS/2, which would make a bad candidate for stable. So to give us some time for fixing the root of the problem, disable elan_i2c for the devices we know are not behaving properly. Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803600 Link: https://bugs.archlinux.org/task/59714 Fixes: df077237cf55 Input: elantech - detect new ICs and setup Host Notify for them Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Benjamin Tissoires Acked-by: Peter Hutterer Signed-off-by: Dmitry Torokhov

Input: elantech - enable middle button of touchpad on ThinkPad P72

2018-09-18T22:28:07+00:00

Adding 2 new touchpad IDs to support middle button support. Cc: stable@vger.kernel.org Signed-off-by: Aaron Ma Signed-off-by: Dmitry Torokhov

Merge branch 'next' into for-linus

2018-08-16T18:10:56+00:00

Prepare input updates for 4.19 merge window.

Input: mark expected switch fall-throughs

2018-08-08T18:23:27+00:00

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 2 was used: -Wimplicit-fallthrough=2 Signed-off-by: Gustavo A. R. Silva Signed-off-by: Dmitry Torokhov

Input: elantech - fix V4 report decoding for module with middle key

2018-06-22T00:20:11+00:00

Some touchpad has middle key and it will be indicated in bit 2 of packet[0]. We need to fix V4 formation's byte mask to prevent error decoding. Signed-off-by: KT Liao Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov

Input: elantech - enable middle button of touchpads on ThinkPad P52

2018-06-22T00:19:56+00:00

PNPID is better way to identify the type of touchpads. Enable middle button support on 2 types of touchpads on Lenovo P52. Cc: stable@vger.kernel.org Signed-off-by: Aaron Ma Reviewed-by: Benjamin Tissoires Signed-off-by: Dmitry Torokhov

Input: psmouse-smbus - allow to control psmouse_deactivate

2018-05-23T23:49:22+00:00

This seems to be Synaptics specific, as some Elan touchpads are not correctly switching to SMBus if we call deactivate before switching to SMBus on cold boot and on resume. Tested with the T480s Signed-off-by: Benjamin Tissoires Acked-by: KT Liao Signed-off-by: Dmitry Torokhov

Input: elantech - detect new ICs and setup Host Notify for them

2018-05-23T23:49:22+00:00

New ICs are using a different scheme for the alternate bus parameter. Given that they are new and are only using either PS2 only or PS2 + SMBus Host Notify, we force those new ICs to use the SMBus solution for enhanced reporting. This allows the touchpad found on the Lenovo T480s to report 5 fingers every 8 ms, instead of having a limit of 2 every 8 ms. Signed-off-by: Benjamin Tissoires Acked-by: KT Liao Signed-off-by: Dmitry Torokhov

Input: elantech - add support for SMBus devices

2018-05-23T23:49:22+00:00

Many of the Elantech devices are connected through PS/2 and a different bus (SMBus or plain I2C). To not break any existing device, we only enable SMBus based on a module parameter. If some laptops require the quirk to be set, we will have to rely on a list of PNPIds or MDI matching to individually expose those hardware over SMBus. the parameter mentioned above is elantech_smbus from the psmouse module. Signed-off-by: Benjamin Tissoires Acked-by: KT Liao Signed-off-by: Dmitry Torokhov

Input: elantech - query the resolution in query_info

2018-05-23T23:49:22+00:00

The command ETP_RESOLUTION_QUERY also contains the bus information. It is better to fetch it once, while we are querying for device information. Signed-off-by: Benjamin Tissoires Acked-by: KT Liao Signed-off-by: Dmitry Torokhov