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

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Date:   Mon, 3 Dec 2018 17:23:10 -0500
From:   Jonathan marek <jonathan@...ek.ca>
To:     freedreno@...ts.freedesktop.org,
        Mark Rutland <mark.rutland@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, festevam@...il.com,
        Sascha Hauer <s.hauer@...gutronix.de>,
        open list <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>, Chris.Healy@....aero,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        NXP Linux Team <linux-imx@....com>
Subject: Re: [Freedreno] [PATCH v3 4/4] ARM: dts: imx5: add gpu nodes

On 12/03/2018 05:10 PM, Jordan Crouse wrote:
> On Mon, Dec 03, 2018 at 04:18:16PM -0500, Jonathan Marek wrote:
>> 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 {
>> +			compatible = "amd,imageon-200.1", "amd,imageon";
>> +			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 {
>> +					qcom,gpu-freq = <166250000>;
>> +				};
>> +			};
> 
> There shouldn't be any incremental cost in the source code to use OPP; it should
> just work. And then this won't give us a further reason to keep the legacy
> code around when we decide to dump any pretense of downstream "compatibility".
> 

I will switch to OPP.

>> +		};
>>   	};
>>   };
>> diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi
>> index 207eb557c..586d45586 100644
>> --- a/arch/arm/boot/dts/imx53.dtsi
>> +++ b/arch/arm/boot/dts/imx53.dtsi
>> @@ -838,5 +838,22 @@
>>   			reg = <0xf8000000 0x20000>;
>>   			clocks = <&clks IMX5_CLK_OCRAM>;
>>   		};
>> +
>> +		gpu: gpu@...00000 {
>> +			compatible = "amd,imageon-200.0", "amd,imageon";
>> +			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 {
>> +					qcom,gpu-freq = <200000000>;
>> +				};
> 
> Same.
> 
>> +			};
> 
>> +		};
>>   	};
>>   };
>> -- 
>> 2.17.1
>