Re: [PATCH] arm64: dts: imx8mm: Add GPU node

[Krzysztof Kozlowski <krzk@kernel.org>]

On Thu, Oct 22, 2020 at 12:16:39PM -0500, Adam Ford wrote:
> According to the documentation from NXP, the i.MX8M Nano has a
> Vivante GC7000 Ultra Lite as its GPU core.
> 
> With this patch, the Etnaviv driver presents the GPU as:
>    etnaviv-gpu 38000000.gpu: model: GC7000, revision: 6203
> 
> It uses the GPCV2 controller to enable the power domain for the GPU.
> 
> Signed-off-by: Adam Ford <aford173@gmail.com>
> ---
> This patch depends on a series located:
> https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=368903
> and
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> index 605e6dbd2c6f..62c8cd3dea7c 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
> @@ -4,6 +4,8 @@
>   */
>  
>  #include <dt-bindings/clock/imx8mn-clock.h>
> +#include <dt-bindings/power/imx8mn-power.h>
> +#include <dt-bindings/reset/imx8mq-reset.h>
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/input/input.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
> @@ -1019,6 +1021,31 @@ gpmi: nand-controller@33002000 {
>  			status = "disabled";
>  		};
>  
> +		gpu: gpu@38000000 {
> +			compatible = "vivante,gc";
> +			reg = <0x38000000 0x8000>;
> +			interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&clk IMX8MN_CLK_GPU_AHB>,
> +				<&clk IMX8MN_CLK_GPU_BUS_ROOT>,
> +				<&clk IMX8MN_CLK_GPU_CORE_ROOT>,
> +				<&clk IMX8MN_CLK_GPU_SHADER_DIV>;
> +			clock-names = "reg", "bus", "core", "shader";
> +			assigned-clocks = <&clk IMX8MN_CLK_GPU_CORE_SRC>,
> +					  <&clk IMX8MN_CLK_GPU_SHADER_SRC>,
> +					  <&clk IMX8MN_CLK_GPU_AXI>,
> +					  <&clk IMX8MN_CLK_GPU_AHB>,
> +					  <&clk IMX8MN_GPU_PLL>,
> +					  <&clk IMX8MN_CLK_GPU_CORE_DIV>,
> +					  <&clk IMX8MN_CLK_GPU_SHADER_DIV>;
> +			assigned-clock-parents = <&clk IMX8MN_GPU_PLL_OUT>,
> +						  <&clk IMX8MN_GPU_PLL_OUT>,
> +						  <&clk IMX8MN_SYS_PLL1_800M>,
> +						  <&clk IMX8MN_SYS_PLL1_800M>;
> +			assigned-clock-rates = <0>, <0>, <800000000>, <400000000>, <1200000000>,
> +				<400000000>, <400000000>;

Plaese indent it till '=' and put each entry in new line. This will
match other 'assigned-clock' properties.

Best regards,
Krzysztof