[PATCH 3/3] imx: power-domain: Get rid of SMCCC dependency

[Tim Harvey]

On Mon, Apr 4, 2022 at 7:25 AM Marek Vasut <marex at denx.de> wrote:
>
> On 4/4/22 16:15, Adam Ford wrote:
> > On Mon, Apr 4, 2022 at 8:01 AM Marek Vasut <marex at denx.de> wrote:
> >>
> >> On 4/4/22 14:51, Adam Ford wrote:
> >>> On Wed, Mar 30, 2022 at 10:04 PM Marek Vasut <marex at denx.de> wrote:
> >>>>
> >>>> This driver is the only SMCCC dependency in iMX8M U-Boot port. Rework
> >>>> the driver based on Linux GPCv2 driver to directly control the GPCv2
> >>>> block instead of using SMCCC calls. This way, U-Boot can operate the
> >>>> i.MX8M power domains without depending on anything else.
> >>>>
> >>>> This is losely based on Linux GPCv2 driver. The GPU, VPU, MIPI power
> >>>> domains are not supported to save space, since they are not useful in
> >>>> the bootloader. The only domains kept are ones for HSIO, PCIe, USB.
> >>>
> >>> I thought there were people who were using video in U-Boot, but maybe
> >>> I am wrong.
> >>
> >> There are no video drivers for MX8M in U-Boot, it's all USB and maybe
> >> sometimes in the future PCIe.
> >
> > Oh good.
> >
> > I'll try to test it on an imx8mq when I get some time.
>
> The entire stack of patches is at:
>
> https://source.denx.de/u-boot/custodians/u-boot-usb/-/commits/imx-8mp

For the series:

Tested-By: Tim Harvey <tharvey at gateworks.com> #imx8mp-venice-defconfig

This was tested on an IMX8MP board that I'm bringing up
(imx8mp-venice-defconfig) but have not yet submitted.

Best Regards,

Tim