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authorZhang Rui <rui.zhang@intel.com>2013-08-15 07:56:24 +0200
committerZhang Rui <rui.zhang@intel.com>2013-08-15 07:56:24 +0200
commit9c532d1710326c0f6f5d46d7f78d9da1a03b7a52 (patch)
tree75e1c0257e00cf55c1a01ab18fcf7b60c390076e /Documentation/devicetree
parentMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6 (diff)
parentDocumentation: thermal: Explain the exynos thermal driver model (diff)
downloadlinux-9c532d1710326c0f6f5d46d7f78d9da1a03b7a52.tar.xz
linux-9c532d1710326c0f6f5d46d7f78d9da1a03b7a52.zip
Merge branch 'for_3.12/exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into exynos
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/thermal/exynos-thermal.txt55
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diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
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+* Exynos Thermal Management Unit (TMU)
+
+** Required properties:
+
+- compatible : One of the following:
+ "samsung,exynos4412-tmu"
+ "samsung,exynos4210-tmu"
+ "samsung,exynos5250-tmu"
+ "samsung,exynos5440-tmu"
+- interrupt-parent : The phandle for the interrupt controller
+- reg : Address range of the thermal registers. For soc's which has multiple
+ instances of TMU and some registers are shared across all TMU's like
+ interrupt related then 2 set of register has to supplied. First set
+ belongs to each instance of TMU and second set belongs to common TMU
+ registers.
+- interrupts : Should contain interrupt for thermal system
+- clocks : The main clock for TMU device
+- clock-names : Thermal system clock name
+- vtmu-supply: This entry is optional and provides the regulator node supplying
+ voltage to TMU. If needed this entry can be placed inside
+ board/platform specific dts file.
+
+Example 1):
+
+ tmu@100C0000 {
+ compatible = "samsung,exynos4412-tmu";
+ interrupt-parent = <&combiner>;
+ reg = <0x100C0000 0x100>;
+ interrupts = <2 4>;
+ clocks = <&clock 383>;
+ clock-names = "tmu_apbif";
+ status = "disabled";
+ vtmu-supply = <&tmu_regulator_node>;
+ };
+
+Example 2):
+
+ tmuctrl_0: tmuctrl@160118 {
+ compatible = "samsung,exynos5440-tmu";
+ reg = <0x160118 0x230>, <0x160368 0x10>;
+ interrupts = <0 58 0>;
+ clocks = <&clock 21>;
+ clock-names = "tmu_apbif";
+ };
+
+Note: For multi-instance tmu each instance should have an alias correctly
+numbered in "aliases" node.
+
+Example:
+
+aliases {
+ tmuctrl0 = &tmuctrl_0;
+ tmuctrl1 = &tmuctrl_1;
+ tmuctrl2 = &tmuctrl_2;
+};