linux-kernel - Re: [PATCH] Input: /input/mouse/elan_i2c_core.c Fix some Asus touchapod which casue TP no funciton sometimes, the patch detect some specific touchpad and run a special initialize

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Date:	Mon, 11 Jul 2016 10:03:21 -0700
From:	'Dmitry Torokhov' <dmitry.torokhov@...il.com>
To:	廖崇榮 <kt.liao@....com.tw>
Cc:	'KT Liao' <ktalex.liao@...il.com>, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org, phoenix@....com.tw
Subject: Re: [PATCH] Input: /input/mouse/elan_i2c_core.c Fix some Asus
 touchapod which casue TP no funciton sometimes, the patch detect some
 specific touchpad and run a special initialize

On Mon, Jul 11, 2016 at 08:40:58PM +0800, 廖崇榮 wrote:
> > +
> > +	error = data->ops->get_sm_version(client, &data->ic_type,
> > +					  &data->sm_version);
> > +	if (error)
> > +		return false;
> 
> That means we'd be fetching product ID and IC type twice when initializing the device. Can we come with a way to do it once?
> [KT]:Because the elan_query_device_info() is behind the elan_initialize(). That's why I fetching product ID and IC type in the elan_initialize()
>     I will discuss with FW team and then execute elan_query_device_info() first to get product_id and ic_type. 

We might need to split fetching product ID and IC type form the rest of
the device info.

Thanks.

-- 
Dmitry