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

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Message-ID: <alpine.LNX.2.00.1606211148370.6874@cbobk.fhfr.pm>
Date:	Tue, 21 Jun 2016 11:49:18 +0200 (CEST)
From:	Jiri Kosina <jikos@...nel.org>
To:	ghzhong <ghzhong@...angdigital.com>
cc:	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Dmitry Torokhov <dtor@...omium.org>,
	Benson Leung <bleung@...omium.org>,
	Andrew Duggan <aduggan@...aptics.com>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: i2c-hid: set power sleep before shutdown

On Tue, 21 Jun 2016, ghzhong wrote:

> > > Some HW design 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 disable 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.
> > Wow, that's a new one! Could you tell us which device board is behaving
> > that way (if not under NDA or such)
> Umaro, a chromebook model.

Could you please send me a v2 with updated changelog (specifying the model 
that is known to need this) and the free_irq() change?

Thanks,

-- 
Jiri Kosina
SUSE Labs