From: Andrew Duggan <aduggan@synaptics.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Yiannis Marangos <yiannis.marangos@gmail.com>
Cc: linux-input@vger.kernel.org, benjamin.tissoires@redhat.com
Subject: Re: [PATCH v2 1/2] Input: synaptics-rmi4 - RMI4 can also use SMBUS version 3
Date: Tue, 24 Oct 2017 16:50:26 -0700 [thread overview]
Message-ID: <4b3f9306-785d-155d-f23f-54acf7852da5@synaptics.com> (raw)
In-Reply-To: <20171024181924.ib3oybrxdq42h5f3@dtor-ws>
Hi Dmitry,
On 10/24/2017 11:19 AM, Dmitry Torokhov wrote:
> On Tue, Oct 10, 2017 at 09:04:20PM +0300, Yiannis Marangos wrote:
>> Hi guys,
>>
>> As I understand the second part of the patchset will take a while until it get
>> merged. Is it possible to merge the first part only? Without this, LEN0073 users
>> can not use psmouse.synaptics_intertouch=1 as a workaround. LEN0073 is not
>> usable at all unless users patch the kernel manually.
> Benjamin, Andrew, any comments/objections on expanding the acceptable
> version range?
I didn't comment earlier since I didn't have any specific info about
SMBus v3. But, looking at the spec for v3 it sounds like our v2
touchpads should be compatible with a v3 bus.
"This version of the specification is a superset of previous versions,
1.0, 1.1, and 2.0. The intent is that all devices compliant with these
previous versions are compliant with this version."
From http://smbus.org/specs/SMBus_3_0_20141220.pdf pg 8 section 1.3.
Based on that quote and the fact that it seems to work for Yiannis makes
me think that this change is probably ok.
Andrew
> Thanks.
>
next prev parent reply other threads:[~2017-10-24 23:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-06 14:06 [PATCH v2 0/2] Input: synaptics - Lenovo X1 Carbon 5 should use SMBUS/RMI Yiannis Marangos
2017-10-06 14:06 ` [PATCH v2 1/2] Input: synaptics-rmi4 - RMI4 can also use SMBUS version 3 Yiannis Marangos
2017-10-10 18:04 ` Yiannis Marangos
2017-10-24 18:19 ` Dmitry Torokhov
2017-10-24 23:50 ` Andrew Duggan [this message]
2017-10-25 7:31 ` Benjamin Tissoires
2017-10-25 16:14 ` Dmitry Torokhov
2017-10-06 14:06 ` [PATCH v2 2/2] Input: synaptics - Lenovo X1 Carbon 5 should use SMBUS/RMI Yiannis Marangos
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