linux-kernel - Re: [GIT_PULL] SOC: TI Keystone Ring Accelerator driver for v5.6

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Date:   Fri, 17 Jan 2020 10:20:35 -0800
From:   santosh.shilimkar@...cle.com
To:     Olof Johansson <olof@...om.net>
Cc:     SoC Team <soc@...nel.org>, ARM-SoC Maintainers <arm@...nel.org>,
        Linux ARM Mailing List <linux-arm-kernel@...ts.infradead.org>,
        Kevin Hilman <khilman@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Vinod Koul <vkoul@...nel.org>
Subject: Re: [GIT_PULL] SOC: TI Keystone Ring Accelerator driver for v5.6

On 1/17/20 10:11 AM, Olof Johansson wrote:
> On Thu, Jan 16, 2020 at 9:05 PM <santosh.shilimkar@...cle.com> wrote:
>>
>> On 1/16/20 4:03 PM, Olof Johansson wrote:
>>> Hi,
>>>
>>> On Thu, Jan 16, 2020 at 12:07:39PM -0800, Santosh Shilimkar wrote:
>>>> Its bit late for pull request, but if possible, please pull it to
>>>> soc drivers tree.
>>>>
>>>> The following changes since commit e42617b825f8073569da76dc4510bfa019b1c35a:
>>>>
>>>>     Linux 5.5-rc1 (2019-12-08 14:57:55 -0800)
>>>>
>>>> are available in the git repository at:
>>>>
>>>>     git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git tags/drivers_soc_for_5.6
>>>>
>>>> for you to fetch changes up to 3277e8aa2504d97e022ecb9777d784ac1a439d36:
>>>>
>>>>     soc: ti: k3: add navss ringacc driver (2020-01-15 10:07:27 -0800)
>>>>
>>>> ----------------------------------------------------------------
>>>> SOC: TI Keystone Ring Accelerator driver
>>>>
>>>> The Ring Accelerator (RINGACC or RA) provides hardware acceleration to
>>>> enable straightforward passing of work between a producer and a consumer.
>>>> There is one RINGACC module per NAVSS on TI AM65x SoCs.
>>>
>>> This driver doesn't seem to have exported symbols, and no in-kernel
>>> users. So how will it be used?
>>>
>>> Usually we ask to hold off until the consuming side/drivers are also ready.
>>>
>> The other patches getting merged via Vinod's tree. The combined series
>> is split into couple of series. Vinod is going to pull this branch
>> and apply rest of the patchset. And then couple of additional consumer
>> drivers will get posted.
> 
> Ok -- might have been useful to get that in the tag description for
> context. Something to consider next time.
> 
Sure. Will keep that in mind.

>>> Also, is there a reason this is under drivers/soc/ instead of somewhere more
>>> suitable in the drivers subsystem? It's not "soc glue code" in the same way as
>>> drivers/soc was intended originally.
>>>
>> These kind of SOC IP drivers, we put into drivers/soc/ because of lack
>> of specific subsystem where they fit in. Navigator was also similar example.
> 
> Hmm. At some point we'll have to push the brakes on this, since
> drivers/soc can't become a catch-all for random stuff like the old
> mach directories were. But it's tricky to tell just when -- sometimes
> you have to let the mess show up too.
> 
> I'll merge this when I do the next pass (today, likely).
> 
Thanks Olof !!