[PATCH v9 0/5] Exynos: Simple QoS for exynos-bus using interconnect

[Georgi Djakov]

On 11/13/20 11:07, Chanwoo Choi wrote:
> On 11/13/20 5:48 PM, Georgi Djakov wrote:
>> On 11/12/20 16:09, Sylwester Nawrocki wrote:
>>>
>>> This patchset adds interconnect API support for the Exynos SoC "samsung,
>>> exynos-bus" compatible devices, which already have their corresponding
>>> exynos-bus driver in the devfreq subsystem.  Complementing the devfreq
>>> driver with an interconnect functionality allows to ensure the QoS
>>> requirements of devices accessing the system memory (e.g. video processing
>>> devices) are fulfilled and allows to avoid issues like the one discussed
>>> in thread [1].
>>>
>>> This patch series adds implementation of the interconnect provider per each
>>> "samsung,exynos-bus" compatible DT node, with one interconnect node per
>>> provider.  The interconnect code which was previously added as a part of
>>> the devfreq driver has been converted to a separate platform driver.
>>> In the devfreq a corresponding virtual child platform device is registered.
>>> Integration of devfreq and interconnect frameworks is achieved through
>>> the PM QoS API.
>>>
>>> A sample interconnect consumer for exynos-mixer is added in patch 5/5,
>>> it is currently added only for exynos4412 and allows to address the
>>> mixer DMA underrun error issues [1].
>>
>> Good work Sylwester! Thank you and all the reviewers! What would be the merge
>> path for this patchset? Looks like there is no build dependency between patches.
>> Should i take just patches 2,3 or also patch 1? Chanwoo?
> 
> Hi Georgi,
> 
> If you take the patch 2,3, I'll apply patch 1,4 to devfreq.git.

Ok, sounds good! Thanks for clarifying!

BR,
Georgi