Commit f7397edf authored by Keerthy's avatar Keerthy Committed by Tony Lindgren
Browse files

ARM: dts: DRA7: Add bandgap and related thermal nodes 



Add bandgap and related thermal nodes. The patch adds 5 thermal
sensors. Only one cooling device for mpu as of now. The sensors are
the exact same on both dra72 and dra7. Introduce CPU, GPU, core nodes
for the moment as they are direct reuse of OMAP5 entities.

NOTE: OMAP4 has a finer counter granularity, which allows for a delay
of 1000ms in the thermal zone polling intervals. DRA7 have different
counter mechanism, which allows at maximum a 500ms timer. Adjust the
cpu thermal zone accordingly for DRA7.

Signed-off-by: default avatarKeerthy <j-keerthy@ti.com>
[t-kristo@ti.com: few reuse from OMAP5 entities]
Signed-off-by: default avatarTero Kristo <t-kristo@ti.com>
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent e129fdb9

arch/arm/boot/dts/dra7.dtsi

+23 −0
Original line number Diff line number Diff line
@@ -177,6 +177,18 @@ 
			};

		};



		bandgap: bandgap@4a0021e0 {

			reg = <0x4a0021e0 0xc

				0x4a00232c 0xc

				0x4a002380 0x2c

				0x4a0023C0 0x3c

				0x4a002564 0x8

				0x4a002574 0x50>;

				compatible = "ti,dra752-bandgap";

				interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;

				#thermal-sensor-cells = <1>;

		};



		cm_core_aon: cm_core_aon@4a005000 {

			compatible = "ti,dra7-cm-core-aon";

			reg = <0x4a005000 0x2000>;
@@ -1426,6 +1438,17 @@ 
			status = "disabled";

		};

	};



	thermal_zones: thermal-zones {

		#include "omap4-cpu-thermal.dtsi"

		#include "omap5-gpu-thermal.dtsi"

		#include "omap5-core-thermal.dtsi"

	};



};



&cpu_thermal {

	polling-delay = <500>; /* milliseconds */

};



/include/ "dra7xx-clocks.dtsi"

arch/arm/boot/dts/dra72x.dtsi

+5 −0
Original line number Diff line number Diff line
@@ -20,6 +20,11 @@ 
			device_type = "cpu";

			compatible = "arm,cortex-a15";

			reg = <0>;



			/* cooling options */

			cooling-min-level = <0>;

			cooling-max-level = <2>;

			#cooling-cells = <2>; /* min followed by max */

		};

	};

arch/arm/boot/dts/dra74x.dtsi

+5 −0
Original line number Diff line number Diff line
@@ -31,6 +31,11 @@ 
			clock-names = "cpu";



			clock-latency = <300000>; /* From omap-cpufreq driver */



			/* cooling options */

			cooling-min-level = <0>;

			cooling-max-level = <2>;

			#cooling-cells = <2>; /* min followed by max */

		};

		cpu@1 {

			device_type = "cpu";

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