lkml.org 
[lkml]   [2018]   [Apr]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 3/6] i2c: i2c-stm32f7: Add initial SMBus protocols support
From
Date


On 04/03/2018 05:31 PM, Wolfram Sang wrote:
>
>>>> All SMBus protocols are implemented except SMBus-specific protocols.
>>>
>>> What does that mean?
>>
>> It miss SMBus Host Notification and SMBBus Alert. They are almost ready but I'm
>> struggling to put them back to operational state after recent changes related to
>> SMBust Host Notification. A more "classic" interrupt base solution has been put
>> in place but I fail to use implement it in my side.
>> Another patch set is going to be delivered for these 2 commands.
>
> This is totally fine to implement it incrementally. Please just update the
> commit message with the more detailed explanation above.
>

Ok. I get.

>>> That is quite some complexity considering we have I2C_FUNC_SMBUS_EMUL. I
>>> don't mind, but you really want that?
>>>
>>
>> All SMBBus commands are implemented as such. I never try to emulation commands.
>> Should we use emulation SMBus commands or real commands... Don't know.
>
> You won't see any difference on the wire. I don't know your HW. It might
> be that SMBus mode is more "automatic" and uses less interrupts. Or
> stuff like Alert or HostNotification only works in this mode. If you and
> the driver maintainers think it is worth the added complexity, I am
> fine, too.
>
Ok. I see.
I am the maintainer. So yes I keep it as such ... with this complexity ;)

\
 
 \ /
  Last update: 2018-04-04 10:17    [W:0.111 / U:2.268 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site