Re: [PATCH v2 1/2] Input: synaptics-rmi4 - RMI4 can also use SMBUS version 3

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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.


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