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SubjectRe: [PATCH v4 08/13] iommu/rockchip: Control clocks needed to access the IOMMU
On Mon, Jan 22, 2018 at 1:09 PM, JeffyChen <jeffy.chen@rock-chips.com> wrote:
> Hi Randy,
>
>
> On 01/22/2018 10:15 AM, JeffyChen wrote:
>>
>> Hi Randy,
>>
>> On 01/22/2018 09:18 AM, Randy Li wrote:
>>>>
>>>>
>>> Also the power domain driver could manage the clocks as well, I would
>>> suggest to use pm_runtime_*.
>>
>>
>> actually the clocks required by pm domain may not be the same as what we
>> want to control here, there might be some clocks only be needed when
>> accessing mmu registers.
>>
>> but i'm not very sure about that, will confirm it with Simon Xue.
>
>
> confirmed with Simon, there might be some iommus don't have a pd, and the
> CONFIG_PM could be disabled.
>
> so it might be better to control clocks in iommu driver itself.
>

Agreed with Jeffy.

I'd give Reviewed-by, but this is my own patch reposted by Jeffy
(thanks!), so it wouldn't have any value. :)

Best regards,
Tomasz

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