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| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2021-01-07 22:44:38 +0800 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2021-01-13 11:25:26 +0100 |
| commit | f419e5940f1d9892ea6f45acdaca572b9e73ff39 (patch) | |
| tree | 48dab64afabc7f3cfdb9d821ef5f37b10e3b733f /fs/ocfs2/localalloc.c | |
| parent | 5b569302520ac8cef03e7a841e45cb37234f8b5f (diff) | |
platform/x86: ideapad-laptop: Disable touchpad_switch for ELAN0634
Newer ideapads (e.g.: Yoga 14s, 720S 14) come with ELAN0634 touchpad do not
use EC to switch touchpad.
Reading VPCCMD_R_TOUCHPAD will return zero thus touchpad may be blocked
unexpectedly.
Writing VPCCMD_W_TOUCHPAD may cause a spurious key press.
Add has_touchpad_switch to workaround these machines.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: stable@vger.kernel.org # 5.4+
--
v2: Specify touchpad to ELAN0634
v3: Stupid missing ! in v2
v4: Correct acpi_dev_present usage (Hans)
Link: https://lore.kernel.org/r/20210107144438.12605-1-jiaxun.yang@flygoat.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'fs/ocfs2/localalloc.c')
0 files changed, 0 insertions, 0 deletions