[PATCH 2/3] ARM: dts: imx6: RDU2+: add assigned clocks for GPU 3D

[Chris Healy]

Tested-by: Chris Healy <cphealy at gmail.com>


On Thu, Apr 12, 2018 at 6:15 AM, Lucas Stach <l.stach at pengutronix.de> wrote:
> This downclocks the shader domain from 720MHz to 594MHz, which gets rid
> of brown-outs due to excessive current draw on the PMIC switchers. The
> board has an unchanged power tree from the Quad design, which isn't able
> to cope with higher current needs of the QuadPlus GPU at full speed.
>
> Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
> ---
>  arch/arm/boot/dts/imx6qp-zii-rdu2.dts | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6qp-zii-rdu2.dts b/arch/arm/boot/dts/imx6qp-zii-rdu2.dts
> index 547a76677ab3..28822d409c38 100644
> --- a/arch/arm/boot/dts/imx6qp-zii-rdu2.dts
> +++ b/arch/arm/boot/dts/imx6qp-zii-rdu2.dts
> @@ -48,3 +48,8 @@
>         model = "ZII RDU2+ Board";
>         compatible = "zii,imx6qp-zii-rdu2", "fsl,imx6qp";
>  };
> +
> +&gpu_3d {
> +       assigned-clocks = <&clks IMX6QDL_CLK_GPU3D_SHADER_SEL>;
> +       assigned-clock-parents = <&clks IMX6QDL_CLK_PLL2_PFD1_594M>;
> +};
> --
> 2.16.3
>