linux-kernel - RE: [PATCH] Input: elantech - Remove read/write registers in attr.

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Message-ID: <001701d6332a$54ebc970$fec35c50$@emc.com.tw>
Date:   Tue, 26 May 2020 14:53:15 +0800
From:   "jingle" <jingle.wu@....com.tw>
To:     "'Dmitry Torokhov'" <dmitry.torokhov@...il.com>
Cc:     <linux-kernel@...r.kernel.org>, <linux-input@...r.kernel.org>,
        <phoenix@....com.tw>, <dave.wang@....com.tw>,
        <josh.chen@....com.tw>
Subject: RE: [PATCH] Input: elantech - Remove read/write registers in attr.

HI Dmitry:

These changes would not affect all the behavior of the old IC, including all
the TP functions

THANKS
JINGLE

-----Original Message-----
From: Dmitry Torokhov [mailto:dmitry.torokhov@...il.com] 
Sent: Tuesday, May 26, 2020 12:17 PM
To: Jingle.Wu
Cc: linux-kernel@...r.kernel.org; linux-input@...r.kernel.org;
phoenix@....com.tw; dave.wang@....com.tw; josh.chen@....com.tw
Subject: Re: [PATCH] Input: elantech - Remove read/write registers in attr.

Hi Jingle,

On Tue, May 26, 2020 at 10:22:46AM +0800, Jingle.Wu wrote:
> New Elan IC would not be accessed with the specific regiters.

What about older Elaan parts? We can't simply drop compatibility with older
chips in newer kernels.

Thanks.

--
Dmitry