Hi Robin,
Thanks for your reply.
On 02/28/2018 11:06 PM, Robin Murphy wrote:
On 28/02/18 13:00, JeffyChen wrote:
Hi Robin,
Thanks for your reply.
On 02/28/2018 12:59 AM, Robin Murphy wrote:
the rockchip IOMMU is part of the master block in hardware, so it
needs
to control the master's power
On 28/02/18 13:00, JeffyChen wrote:
Hi Robin,
Thanks for your reply.
On 02/28/2018 12:59 AM, Robin Murphy wrote:
the rockchip IOMMU is part of the master block in hardware, so it needs
to control the master's power domain and some of the master's clocks
when access it's registers.
and the num
Hi Robin,
Thanks for your reply.
On 02/28/2018 12:59 AM, Robin Murphy wrote:
the rockchip IOMMU is part of the master block in hardware, so it needs
to control the master's power domain and some of the master's clocks
when access it's registers.
and the number of clocks needed here, might be d
On 23/02/18 10:24, JeffyChen wrote:
Hi guys,
On 02/01/2018 07:19 PM, JeffyChen wrote:
diff --git
a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
index 2098f7732264..33dd853359fa 100644
--- a/Documentation/devicetree/bin
Hi guys,
On 02/01/2018 07:19 PM, JeffyChen wrote:
diff --git
a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
index 2098f7732264..33dd853359fa 100644
--- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt
+++ b/
On Wed, Feb 14, 2018 at 7:03 PM, Vivek Gautam
wrote:
>
>
> On 1/24/2018 7:19 PM, Robin Murphy wrote:
>>
>> On 24/01/18 10:35, Jeffy Chen wrote:
>>>
>>> From: Tomasz Figa
>>>
>>> Current code relies on master driver enabling necessary clocks before
>>> IOMMU is accessed, however there are cases wh
On 1/24/2018 7:19 PM, Robin Murphy wrote:
On 24/01/18 10:35, Jeffy Chen wrote:
From: Tomasz Figa
Current code relies on master driver enabling necessary clocks before
IOMMU is accessed, however there are cases when the IOMMU should be
accessed while the master is not running yet, for example
Hi Rob,
Thanks for your reply.
On 01/31/2018 09:50 PM, Rob Herring wrote:
On Wed, Jan 31, 2018 at 1:52 AM, Tomasz Figa wrote:
Hi Rob,
On Wed, Jan 31, 2018 at 2:05 AM, Rob Herring wrote:
On Wed, Jan 24, 2018 at 06:35:11PM +0800, Jeffy Chen wrote:
From: Tomasz Figa
Current code relies on
On Wed, Jan 31, 2018 at 1:52 AM, Tomasz Figa wrote:
> Hi Rob,
>
> On Wed, Jan 31, 2018 at 2:05 AM, Rob Herring wrote:
>> On Wed, Jan 24, 2018 at 06:35:11PM +0800, Jeffy Chen wrote:
>>> From: Tomasz Figa
>>>
>>> Current code relies on master driver enabling necessary clocks before
>>> IOMMU is ac
Hi Rob,
On Wed, Jan 31, 2018 at 2:05 AM, Rob Herring wrote:
> On Wed, Jan 24, 2018 at 06:35:11PM +0800, Jeffy Chen wrote:
>> From: Tomasz Figa
>>
>> Current code relies on master driver enabling necessary clocks before
>> IOMMU is accessed, however there are cases when the IOMMU should be
>> acc
On Wed, Jan 24, 2018 at 06:35:11PM +0800, Jeffy Chen wrote:
> From: Tomasz Figa
>
> Current code relies on master driver enabling necessary clocks before
> IOMMU is accessed, however there are cases when the IOMMU should be
> accessed while the master is not running yet, for example allocating
>
Hi Robin,
Thanks for your reply.
On 01/24/2018 09:49 PM, Robin Murphy wrote:
+Optional properties:
+- clocks : A list of master clocks requires for the IOMMU to be
accessible
s/requires/required/
ok
+ by the host CPU. The number of clocks depends on the master
+ block
On 24/01/18 10:35, Jeffy Chen wrote:
From: Tomasz Figa
Current code relies on master driver enabling necessary clocks before
IOMMU is accessed, however there are cases when the IOMMU should be
accessed while the master is not running yet, for example allocating
V4L2 videobuf2 buffers, which is
From: Tomasz Figa
Current code relies on master driver enabling necessary clocks before
IOMMU is accessed, however there are cases when the IOMMU should be
accessed while the master is not running yet, for example allocating
V4L2 videobuf2 buffers, which is done by the VB2 framework using DMA
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