Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1427610

Re: [PATCH v2] HID: i2c-hid: set power sleep before shutdown

Show all headers | View raw

On Tue, 21 Jun 2016, Guohua Zhong wrote:

> Add i2c_hid_shutdown for i2c-hid driver to send suspend cmd & free
> irq before device shutdown.
> 
> Some HW design (i.e. Umaro, a chromebook model) is that the power to
> i2c hid device won't down after device shutdown. Also the i2c-hid driver
> do not send suspend cmd to the hid i2c device and free its irq before
> shutdown.So if We touch the touchscreen or some other i2c hid device,
> the power consumtion will be go up even when the device is in shutdown
> state.
> 
> Though the root cause maybe a HW issue. But it seems that it is a
> good pratice to set power sleep for i2c-hid device before shutdown.

Applied, thanks.

-- 
Jiri Kosina
SUSE Labs

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH v2] HID: i2c-hid: set power sleep before shutdown Guohua Zhong <ghzhong@yifangdigital.com> - 2016-06-21 12:40 +0200
  Re: [PATCH v2] HID: i2c-hid: set power sleep before shutdown Jiri Kosina <jikos@kernel.org> - 2016-06-21 13:10 +0200
    Re: [PATCH v2] HID: i2c-hid: set power sleep before shutdown ghzhong <ghzhong@yifangdigital.com> - 2016-06-22 13:30 +0200
      Re: [PATCH v2] HID: i2c-hid: set power sleep before shutdown Jiri Kosina <jikos@kernel.org> - 2016-06-22 13:30 +0200

csiph-web