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

Message ID 20180412131556.11073-2-l.stach@pengutronix.de (mailing list archive)
State New, archived
Headers show

Commit Message

Lucas Stach April 12, 2018, 1:15 p.m. UTC 
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@pengutronix.de>
---
 arch/arm/boot/dts/imx6qp-zii-rdu2.dts | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Chris Healy April 12, 2018, 2:15 p.m. UTC | #1 
Tested-by: Chris Healy <cphealy@gmail.com>


On Thu, Apr 12, 2018 at 6:15 AM, Lucas Stach <l.stach@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@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
>
diff mbox

Patch

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>;
+};