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dts: Documentation: Extending documentation entry for exynos-thermal

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Properties necessary for providing Exynos thermal configuration via device
tree.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This commit is contained in:
Lukasz Majewski 2015-01-23 13:10:02 +01:00 committed by Eduardo Valentin
parent e725d26c48
commit 7e20525809
1 changed files with 16 additions and 0 deletions
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16
Documentation/devicetree/bindings/thermal/exynos-thermal.txt
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@ -39,6 +39,18 @@
- vtmu-supply: This entry is optional and provides the regulator node supplying - vtmu-supply: This entry is optional and provides the regulator node supplying
voltage to TMU. If needed this entry can be placed inside voltage to TMU. If needed this entry can be placed inside
board/platform specific dts file. board/platform specific dts file.
Following properties are mandatory (depending on SoC):
- samsung,tmu_gain: Gain value for internal TMU operation.
- samsung,tmu_reference_voltage: Value of TMU IP block's reference voltage
- samsung,tmu_noise_cancel_mode: Mode for noise cancellation
- samsung,tmu_efuse_value: Default level of temperature - it is needed when
in factory fusing produced wrong value
- samsung,tmu_min_efuse_value: Minimum temperature fused value
- samsung,tmu_max_efuse_value: Maximum temperature fused value
- samsung,tmu_first_point_trim: First point trimming value
- samsung,tmu_second_point_trim: Second point trimming value
- samsung,tmu_default_temp_offset: Default temperature offset
- samsung,tmu_cal_type: Callibration type
Example 1): Example 1):
@ -51,6 +63,7 @@ Example 1):
clock-names = "tmu_apbif"; clock-names = "tmu_apbif";
status = "disabled"; status = "disabled";
vtmu-supply = <&tmu_regulator_node>; vtmu-supply = <&tmu_regulator_node>;
#include "exynos4412-tmu-sensor-conf.dtsi"
}; };
Example 2): Example 2):
@ -70,6 +83,7 @@ Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
interrupts = <0 184 0>; interrupts = <0 184 0>;
clocks = <&clock 318>, <&clock 318>; clocks = <&clock 318>, <&clock 318>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif"; clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos4412-tmu-sensor-conf.dtsi"
}; };
tmu_cpu3: tmu@1006c000 { tmu_cpu3: tmu@1006c000 {
@ -78,6 +92,7 @@ Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
interrupts = <0 185 0>; interrupts = <0 185 0>;
clocks = <&clock 318>, <&clock 319>; clocks = <&clock 318>, <&clock 319>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif"; clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos4412-tmu-sensor-conf.dtsi"
}; };
tmu_gpu: tmu@100a0000 { tmu_gpu: tmu@100a0000 {
@ -86,6 +101,7 @@ Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
interrupts = <0 215 0>; interrupts = <0 215 0>;
clocks = <&clock 319>, <&clock 318>; clocks = <&clock 319>, <&clock 318>;
clock-names = "tmu_apbif", "tmu_triminfo_apbif"; clock-names = "tmu_apbif", "tmu_triminfo_apbif";
#include "exynos4412-tmu-sensor-conf.dtsi"
}; };
Note: For multi-instance tmu each instance should have an alias correctly Note: For multi-instance tmu each instance should have an alias correctly