Re: [PATCH] arm64: dts: imx8mm: Add GPU nodes for 2D and 3D core

[Krzysztof Kozlowski <krzk@kernel.org>]

On Wed, Sep 30, 2020 at 05:54:18PM +0200, Lucas Stach wrote:
> From: Frieder Schrempf <frieder.schrempf@kontron.de>
> 
> According to the documents, the i.MX8M-Mini features a GC320 and a
> GCNanoUltra GPU core. Etnaviv detects them as:
> 
> 	etnaviv-gpu 38000000.gpu: model: GC600, revision: 4653
> 	etnaviv-gpu 38008000.gpu: model: GC520, revision: 5341
> 
> This seems to work fine more or less without any changes to the HWDB,
> which still might be needed in the future to correct some features,
> etc.
> 
> [lst]: Added power domains and switched clock assignments to the
>        new clock defines used for the composite clocks, instead of
>        relying on the backwards compat defines.
> 
> Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> ---
> This patch depends on the power domain support for i.MX8MM, as the
> GPUs are in a invalid state (which might lead to full system lockups)
> if they are not properly powered on via the power sequencing
> implemented in the GPCv2 driver.
> ---
>  arch/arm64/boot/dts/freescale/imx8mm.dtsi | 39 +++++++++++++++++++++++
>  1 file changed, 39 insertions(+)
> 

Acked-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof