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SubjectRe: [PATCH V3 0/9] arm64: imx8mn: Enable more imx8m Nano functions
On Thu, Nov 4, 2021 at 9:18 AM Adam Ford <aford173@gmail.com> wrote:
>
> The i.MX8M Nano is similar to the i.MX8M Mini in some ways, but very
> different in others. With the blk-ctrl driver for Mini in place,
> this series expands the blk-ctrl driver to support the Nano which
> opens the door for additional functions in the future. As part of
> this series, it also addresses some issues in the GPCv2 driver and
> finally adds support for enabling USB and GPU.
>
> V3: Fixes an the yaml example
> V2: Fixes the clock count in the blk-ctrl
>
> Adam Ford (9):
> soc: imx: gpcv2: keep i.MX8MN gpumix bus clock enabled
> soc: imx: gpcv2: Add dispmix and mipi domains to imx8mn
> dt-bindings: power: imx8mn: add defines for DISP blk-ctrl domains
> dt-bindings: soc: add binding for i.MX8MN DISP blk-ctrl
> soc: imx: imx8m-blk-ctrl: add i.MX8MN DISP blk-ctrl
> arm64: dts: imx8mn: add GPC node
> arm64: dts: imx8mn: put USB controller into power-domains
> arm64: dts: imx8mn: add DISP blk-ctrl
> arm64: dts: imx8mn: Enable GPU
>
> .../soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml | 97 +++++++++++++++++
> arch/arm64/boot/dts/freescale/imx8mn.dtsi | 103 ++++++++++++++++++
> drivers/soc/imx/gpcv2.c | 26 +++++
> drivers/soc/imx/imx8m-blk-ctrl.c | 75 ++++++++++++-
> include/dt-bindings/power/imx8mn-power.h | 5 +
> 5 files changed, 305 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml
>

Adam,

Thanks for the patches. I'm not sure how best to test this but on an
imx8mm-venice-gw7902 which has USB, but no display.

I find that if DRM_ETNAVIV is enabled I hang at 'etnaviv etnaviv:
bound 38000000.gpu (ops 0xffff800010964748)'.

If DRM_ETNAVIV is not enabled:
- boots fine
- usb works
- soft reboot works (does not hang)

Best regards,

Tim

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