Re: [PATCH 3/5] clocksource: exynos_mct: Increase priority over ARM arch timer

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On 18/02/2019 09:53, Krzysztof Kozlowski wrote:
> On Fri, 15 Feb 2019 at 17:35, Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> wrote:
>>
>> On 15/02/2019 13:52, Marek Szyprowski wrote:
>>> Exynos Multi-Core Timer driver (exynos_mct) must be started before ARM
>>> Architected Timers (arch_timer), because they both share some common
>>> hardware blocks (global system counter) and turning on MCT is needed
>>> to get ARM Architected Timer working properly. Increase MCT timer rating
>>> and hotplug priority over ARM Archictected timer driver to achieve that.
>>
>> This is a hack.
>>
>> There are mechanisms to handle this kind of dependency.
>>
>> eg. https://www.kernel.org/doc/html/v4.15/driver-api/device_link.html
> 
> Hi Daniel,
> 
> Are you sure you have proper devices at this point so you can order
> dependencies with device links?

No, it was an example to show there are mechanism to handle the
dependencies. Agree it is a confusing example.




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