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SubjectRe: [PATCH] arm64: tegra: Enable IOMMU for host1x on Tegra132
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On 16/08/2023 20:56, Rayyan Ansari wrote:
> On 16/08/2023 17:24, Thierry Reding wrote:
>> On Thu, Aug 10, 2023 at 10:45:41PM +0100, Rayyan Ansari wrote:
>>> Add the iommu property to the host1x node to register it with its
>>> swgroup.
>>>
>>> Signed-off-by: Rayyan Ansari <rayyan@ansari.sh>
>>> ---
>>>   arch/arm64/boot/dts/nvidia/tegra132.dtsi | 2 ++
>>>   1 file changed, 2 insertions(+)
>>
>> Do you happen to have a Tegra132 device that you can test upstream Linux
>> on? Just asking out of curiosity because these devices are becoming very
>> rare these days and it'd be good to know if people are still using these
>> and that recent Linux kernels are still running on them.
>
> I do - I have the Nexus 9. At some point I was trying to mainline it,
> but I stopped as I couldn't manage to get USB working - I only got
> simplefb working. If it would be useful I could see if my old patches
> work now and submit them.

I looked through my old notes and I was able to get USB host mode (ie
USB OTG) working but not USB device mode.

>
>>
>> Thierry
>

--
Rayyan Ansari
https://ansari.sh

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