From: ghzhong <ghzhong@yifangdigital.com>
To: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Dmitry Torokhov <dtor@chromium.org>,
Benson Leung <bleung@chromium.org>,
Andrew Duggan <aduggan@synaptics.com>,
linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] HID: i2c-hid: set power sleep before shutdown
Date: Wed, 22 Jun 2016 19:15:51 +0800 [thread overview]
Message-ID: <576A7367.8040904@yifangdigital.com> (raw)
In-Reply-To: <alpine.LNX.2.00.1606211308590.6874@cbobk.fhfr.pm>
On 06/21/2016 07:09 PM, Jiri Kosina wrote:
> 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.
>
Do you mean that the Patch V2 has been reviewed & approved? Or I make something wrong and need to do something else?
next prev parent reply other threads:[~2016-06-22 11:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-21 10:27 Guohua Zhong
2016-06-21 11:09 ` Jiri Kosina
2016-06-22 11:15 ` ghzhong [this message]
2016-06-22 11:23 ` Jiri Kosina
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