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

[Georgi Djakov]

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?

Thanks,
Georgi