[PATCH v2 1/2] dts: arm64: imx8mq: Enable gpu passive throttling

[Lucas Stach]

On Mi, 2019-09-11 at 19:40 -0700, Guido Günther wrote:
> Temperature and hysteresis were picked after the CPU.
> 
> Signed-off-by: Guido Günther <agx at sigxcpu.org>

Reviewed-by: Lucas Stach <l.stach at pengutronix.de>

> ---
>  arch/arm64/boot/dts/freescale/imx8mq.dtsi | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> index 4fdd60f2c51e..5023a0e5068d 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
> @@ -235,12 +235,26 @@
>  			thermal-sensors = <&tmu 1>;
>  
>  			trips {
> +				gpu_alert: gpu-alert {
> +					temperature = <80000>;
> +					hysteresis = <2000>;
> +					type = "passive";
> +				};
> +
>  				gpu-crit {
>  					temperature = <90000>;
>  					hysteresis = <2000>;
>  					type = "critical";
>  				};
>  			};
> +
> +			cooling-maps {
> +				map0 {
> +					trip = <&gpu_alert>;
> +					cooling-device =
> +						<&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> +				};
> +			};
>  		};
>  
>  		vpu-thermal {
> @@ -912,6 +926,7 @@
>  			         <&clk IMX8MQ_CLK_GPU_AXI>,
>  			         <&clk IMX8MQ_CLK_GPU_AHB>;
>  			clock-names = "core", "shader", "bus", "reg";
> +			#cooling-cells = <2>;
>  			assigned-clocks = <&clk IMX8MQ_CLK_GPU_CORE_SRC>,
>  			                  <&clk IMX8MQ_CLK_GPU_SHADER_SRC>,
>  			                  <&clk IMX8MQ_CLK_GPU_AXI>,