linux-kernel - Re: [PATCH v3 4/4] ARM: dts: imx5: add gpu nodes

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Date:   Mon, 3 Dec 2018 20:16:07 -0200
From:   Fabio Estevam <festevam@...il.com>
To:     jonathan@...ek.ca
Cc:     freedreno@...ts.freedesktop.org,
        Chris Healy <Chris.Healy@....aero>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        NXP Linux Team <linux-imx@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 4/4] ARM: dts: imx5: add gpu nodes

Hi Jonathan,

Thanks for working on this. Really nice to see GPU support for mx51/mx53!

On Mon, Dec 3, 2018 at 7:21 PM Jonathan Marek <jonathan@...ek.ca> wrote:

Please add a commit log.

> Signed-off-by: Jonathan Marek <jonathan@...ek.ca>

> ---
>  arch/arm/boot/dts/imx51.dtsi | 17 +++++++++++++++++
>  arch/arm/boot/dts/imx53.dtsi | 17 +++++++++++++++++
>  2 files changed, 34 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi
> index 67d462715..e9a7bbce9 100644
> --- a/arch/arm/boot/dts/imx51.dtsi
> +++ b/arch/arm/boot/dts/imx51.dtsi
> @@ -628,5 +628,22 @@
>                                 clock-names = "ipg", "ahb";
>                         };
>                 };
> +
> +               gpu: gpu@...00000 {

We put the peripheral nodes in address order, so this one should go
prior to the IPU node.

> +                       compatible = "amd,imageon-200.1", "amd,imageon";

I can't find the dt-bindings for these compatible entries. Have you
documented them?

> +                       reg = <0x30000000 0x20000>;
> +                       reg-names = "kgsl_3d0_reg_memory";
> +                       interrupts = <12>;
> +                       interrupt-names = "kgsl_3d0_irq";
> +                       clocks = <&clks IMX5_CLK_GPU3D_GATE>, <&clks IMX5_CLK_GARB_GATE>;
> +                       clock-names = "core_clk", "mem_iface_clk";
> +
> +                       qcom,gpu-pwrlevels {
> +                               compatible = "qcom,gpu-pwrlevels";
> +                               qcom,gpu-pwrlevel@0 {

You could drop this @0