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| author | Kai-Heng Feng <kai.heng.feng@canonical.com> | 2019-10-16 17:12:24 +0200 |
|---|---|---|
| committer | Benjamin Tissoires <benjamin.tissoires@redhat.com> | 2019-10-18 15:29:56 +0200 |
| commit | 67b18dfb8cfc6d6c2f45ba8c546088f5c14f5bd5 (patch) | |
| tree | 7d850dccdc2d0074bc61654d6c822dce0b2feaac /COPYING | |
| parent | HID: intel-ish-hid: fix wrong error handling in ishtp_cl_alloc_tx_ring() (diff) | |
| download | linux-67b18dfb8cfc6d6c2f45ba8c546088f5c14f5bd5.tar.xz linux-67b18dfb8cfc6d6c2f45ba8c546088f5c14f5bd5.zip | |
HID: i2c-hid: Remove runtime power management
Runtime power management in i2c-hid brings lots of issues, such as:
- When transitioning from display manager to desktop session, i2c-hid
was closed and opened, so the device was set to SLEEP and ON in a short
period. Vendors confirmed that their devices can't handle fast ON/SLEEP
command because Windows doesn't have this behavior.
- When rebooting, i2c-hid was closed, and the driver core put the device
back to full power before shutdown. This behavior also triggers a quick
SLEEP and ON commands that some devices can't handle, renders an
unusable touchpad after reboot.
- Most importantly, my power meter reports little to none energy saving
when i2c-hid is runtime suspended.
So let's remove runtime power management since there is no actual
benefit.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Diffstat (limited to 'COPYING')
0 files changed, 0 insertions, 0 deletions