Hello Krzysztof,
On 08/16/2016 09:34 AM, Krzysztof Kozlowski wrote:
> Hi,
>
> RFC, please, do not apply, maybe except patch #1 which is harmless.
>
>
> Introduction
> ============
> The patchset brings new entity: clock controller representing a hardware
> block. The clock controller comes with its own prepare lock which
> is used then in many places. The idea is to fix the deadlock mentioned
> in commit 10ff4c5239a1 ("i2c: exynos5: Fix possible ABBA deadlock by keeping
> I2C clock prepared") and commit 34e81ad5f0b6 ("i2c: s3c2410: fix ABBA deadlock
> by keeping clock prepared").
>
>
I'm not familiar enough with the common clock framework to do a proper review
of this patch-set, but I've tested both on an Exynos5800 Peach Pi Chromebook
and an Exynos5422 Odroid XU4 board and I didn't find any clock regressions.
Also, I confirmed that the possible deadlock in the Odroid XU4 that was fixed
by reverted commit 10ff4c5239a1 doesn't happen anymore with your patches.
Tested-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Best regards,
--
Javier Martinez Canillas
Open Source Group
Samsung Research America
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