Hi Tomasz,
On 01/17/2018 03:52 PM, JeffyChen wrote:
Hi Tomasz,
On 01/17/2018 03:38 PM, Tomasz Figa wrote:
>>Don't we need to check here (and in _shutdown() too) if we have a
>>domain attached?
>
>hmmm, right, the startup might been called by resume, so should check
>iommu->domain here.
>
>but
Hi Tomasz,
On 01/17/2018 03:38 PM, Tomasz Figa wrote:
>>Don't we need to check here (and in _shutdown() too) if we have a
>>domain attached?
>
>hmmm, right, the startup might been called by resume, so should check
>iommu->domain here.
>
>but the shutdown would be called at the end of detach or
On Wed, Jan 17, 2018 at 4:26 PM, JeffyChen wrote:
> Hi Tomasz,
>
> Thanks for your reply.
>
> On 01/17/2018 02:20 PM, Tomasz Figa wrote:
>>
>> On Tue, Jan 16, 2018 at 10:25 PM, Jeffy Chen
>> [snip]
>>>
>>> +static int rk_iommu_startup(struct rk_iommu *iommu)
>>> {
>>> - struct rk_iommu *i
On Tue, Jan 16, 2018 at 10:25 PM, Jeffy Chen wrote:
> When the power domain is powered off, the IOMMU cannot be accessed and
> register programming must be deferred until the power domain becomes
> enabled.
>
> Add runtime PM support, and use runtime PM device link from IOMMU to
> master to startu
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