linux-kernel - Re: [PATCH] Input: elan_i2c - Reduce the resume time for new dev ices

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Message-ID: <YEGJ7z479pqyBW1w@google.com>
Date:   Thu, 4 Mar 2021 17:31:27 -0800
From:   'Dmitry Torokhov' <dmitry.torokhov@...il.com>
To:     jingle <jingle.wu@....com.tw>
Cc:     'linux-kernel' <linux-kernel@...r.kernel.org>,
        'linux-input' <linux-input@...r.kernel.org>,
        'phoenix' <phoenix@....com.tw>,
        "'dave.wang'" <dave.wang@....com.tw>,
        "'josh.chen'" <josh.chen@....com.tw>
Subject: Re: [PATCH] Input: elan_i2c - Reduce the resume time for new dev ices

Hi Jingle,

On Fri, Mar 05, 2021 at 09:24:05AM +0800, jingle wrote:
> HI Dmitry:
> 
> In this case (in the newer parts behavior regarding need to reset after
> powering them on), it is consistent with the original driver behavior with
> any new or old device
> (be called data->ops->initialize(client) : usleep(100) , etc.. , because
> this times "data->quirks" is equal 0 at probe state.) 

You misunderstood my question. I was asking what specifically, if
anything, was changed in the firmware to allow skipping reset/sleep part
of device initialization on newer parts during resume process. Because
of there were no specific changes I would say let's not do a quirk and
change the driver to skip reset on resume.

Thanks.

-- 
Dmitry