[PATCH 2/2] arm64: dts: rockchip: Add RGA2 support to rk356x

[Ezequiel Garcia]

Hi Shengyu, Michael,

On Mon, Nov 21, 2022 at 2:13 PM Shengyu Qu <wiagn233 at outlook.com> wrote:
>
> Hi,
> I remember someone said that rga2 has only 32bit address space but not having a mmu or mmu needs to be configured. Better ask by yourself in pine64 discord since I'm not sure about that.
>
> Shengyu
>
>
> 于 2022年11月22日 GMT+08:00 上午12:41:16, Michael Tretter <m.tretter at pengutronix.de> 写到:
> >Hi,
> >
> >On Tue, 22 Nov 2022 00:01:28 +0800, Shengyu Qu wrote:
> >> Someone from pine64 discord found that RGA2 doesn't work properly on over
> >>
> >> 4GB memory RK3568 devices. Are you sure current driver works now?
> >
> >I am absolutely sure that the driver works on a 2GB ROCK3A board.
> >Unfortunately, I don't have a device with 4GB or more memory and I cannot test
> >the driver with such a device.
> >
> >As the documentation for the RGA2 is the same in the TRM of the rk3288 and
> >rk3568, I would guess that the driver doesn't work on a rk3288 with more than
> >4GB (if there is such a thing) either and the driver needs to be fixed for
> >both SoCs.
> >

In any case, if there's some kind of issue it must be in the driver,
and not in the device tree binding (i.e. this patchset).

Regards,
Ezequiel