| Exynos Thermal management Unit |
| |
| Required properties: |
| |
| - compatible : Should be "samsung,exynos-tmu" for TMU |
| - samsung,min-temp : Minimum temperature value (25 degree celsius) |
| - Current temperature of SoC should be more than this value. |
| - samsung,max-temp : Maximum temperature value (125 degree celsius) |
| - Current temperature of SoC should be less than this value. |
| - samsung,start-warning : Temperature at which TMU starts giving warning (degree celsius) |
| - samsung,start-tripping : Temperature at which TMU shuts down the system (degree celsius) |
| - samsung,hw-tripping : Temperature at which hardware tripping should happen |
| in case TMU fails to power off (degree celsius) |
| - samsung,efuse-min-value : SOC efuse min value (Constant 40) |
| - efuse-value should be more than this value. |
| - samsung,efuse-value : SOC actual efuse value (Literal value) |
| - This is the data trimming info. |
| - This value is used to calculate measuring error. |
| - samsung,efuse-max-value : SoC max efuse value (Constant 100) |
| - efuse-value should be less than this value. |
| - samsung,slope : Default value 274761730 (Constant 0x1060_8802). |
| - This is the default value for TMU_CONTROL register. |
| - It sets the gain of amplifier to the positive-tc generator block. |
| - It selects thermal tripping mode and enables thermal tripping. |
| - samsung,dc-value : Measured data calibration value (Constant 25) |
| - Used for tempearture calculation. |
| - This is 25 because temperature measured is always above 25 degrees. |
| |
| |
| Example: |
| |
| tmu@10060000 { |
| compatible = "samsung,exynos-tmu" |
| samsung,min-temp = <25>; |
| samsung,max-temp = <125>; |
| samsung,start-warning = <95>; |
| samsung,start-tripping = <105>; |
| samsung,hw-tripping = <110>; |
| samsung,efuse-min-value = <40>; |
| samsung,efuse-value = <55>; |
| samsung,efuse-max-value = <100>; |
| samsung,slope = <274761730>; |
| samsung,dc-value = <25>; |
| }; |
