A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Browse source 
Pull ACPI & Thermal updates from Len Brown:
 "The generic Linux thermal layer is gaining some new capabilities
  (generic cooling via cpufreq) and some new customers (ARM).

  Also, an ACPI EC bug fix plus a regression fix."

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (30 commits)
  tools/power/acpi/acpidump: remove duplicated include from acpidump.c
  ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug
  cpuidle / ACPI: fix potential NULL pointer dereference
  ACPI: EC: Add a quirk for CLEVO M720T/M730T laptop
  ACPI: EC: Make the GPE storm threshold a module parameter
  thermal: Exynos: Fix NULL pointer dereference in exynos_unregister_thermal()
  Thermal: Fix bug on cpu_cooling, cooling device's id conflict problem.
  thermal: exynos: Use devm_* functions
  ARM: exynos: add thermal sensor driver platform data support
  thermal: exynos: register the tmu sensor with the kernel thermal layer
  thermal: exynos5: add exynos5250 thermal sensor driver support
  hwmon: exynos4: move thermal sensor driver to driver/thermal directory
  thermal: add generic cpufreq cooling implementation
  Fix a build error.
  thermal: Fix potential NULL pointer accesses
  thermal: add Renesas R-Car thermal sensor support
  thermal: fix potential out-of-bounds memory access
  Thermal: Introduce locking for cdev.thermal_instances list.
  Thermal: Unify the code for both active and passive cooling
  Thermal: Introduce simple arbitrator for setting device cooling state
  ...
This commit is contained in:
Linus Torvalds 2012-10-13 11:27:59 +09:00
commit a3920a6efa
25 changed files with 2205 additions and 736 deletions
Download patch file Download diff file Expand all files Collapse all files

81
Documentation/hwmon/exynos4_tmu
View file

@ -1,81 +0,0 @@
Kernel driver exynos4_tmu
=================
Supported chips:
* ARM SAMSUNG EXYNOS4 series of SoC
Prefix: 'exynos4-tmu'
Datasheet: Not publicly available
Authors: Donggeun Kim <[email protected]>
Description
-----------
This driver allows to read temperature inside SAMSUNG EXYNOS4 series of SoC.
The chip only exposes the measured 8-bit temperature code value
through a register.
Temperature can be taken from the temperature code.
There are three equations converting from temperature to temperature code.
The three equations are:
1. Two point trimming
Tc = (T - 25) * (TI2 - TI1) / (85 - 25) + TI1
2. One point trimming
Tc = T + TI1 - 25
3. No trimming
Tc = T + 50
Tc: Temperature code, T: Temperature,
TI1: Trimming info for 25 degree Celsius (stored at TRIMINFO register)
Temperature code measured at 25 degree Celsius which is unchanged
TI2: Trimming info for 85 degree Celsius (stored at TRIMINFO register)
Temperature code measured at 85 degree Celsius which is unchanged
TMU(Thermal Management Unit) in EXYNOS4 generates interrupt
when temperature exceeds pre-defined levels.
The maximum number of configurable threshold is four.
The threshold levels are defined as follows:
Level_0: current temperature > trigger_level_0 + threshold
Level_1: current temperature > trigger_level_1 + threshold
Level_2: current temperature > trigger_level_2 + threshold
Level_3: current temperature > trigger_level_3 + threshold
The threshold and each trigger_level are set
through the corresponding registers.
When an interrupt occurs, this driver notify user space of
one of four threshold levels for the interrupt
through kobject_uevent_env and sysfs_notify functions.
Although an interrupt condition for level_0 can be set,
it is not notified to user space through sysfs_notify function.
Sysfs Interface
---------------
name name of the temperature sensor
RO
temp1_input temperature
RO
temp1_max temperature for level_1 interrupt
RO
temp1_crit temperature for level_2 interrupt
RO
temp1_emergency temperature for level_3 interrupt
RO
temp1_max_alarm alarm for level_1 interrupt
RO
temp1_crit_alarm
alarm for level_2 interrupt
RO
temp1_emergency_alarm
alarm for level_3 interrupt
RO