linux-stable.git/drivers/thermal, branch v4.6.2

thermal: use %d to print S32 parameters

2016-04-27T22:54:51+00:00

Power allocator's parameters are S32 type, so use %d to print them.

Acked-by: Javi Merino 
Signed-off-by: Leo Yan 
Signed-off-by: Eduardo Valentin

thermal: hisilicon: increase temperature resolution

2016-04-27T22:54:01+00:00

When calculate temperature, old code firstly do division and then
convert to "millicelsius" unit. This will lose resolution and only can
read back temperature with "Celsius" unit.

So firstly scale step value to "millicelsius" and then do division, so
finally we can increase resolution for temperature value. Also refine
the calculation from temperature value to step value.

Signed-off-by: Leo Yan 
Signed-off-by: Eduardo Valentin

thermal: fix Mediatek thermal controller build

2016-04-21T04:13:21+00:00

At least with CONFIG_COMPILE_TEST, there's no reason to assume
that CONFIG_RESET_CONTROLLER is set, but the code for this
controller requires it since it calls device_reset().

Make CONFIG_MTK_THERMAL properly depend on CONFIG_RESET_CONTROLLER.

Signed-off-by: Johannes Berg 
Signed-off-by: Eduardo Valentin

thermal: consistently use int for trip temp

2016-04-21T03:31:14+00:00

The commit 17e8351a7739 consistently use int for temperature,
however it missed a few in trip temperature and thermal_core.

In current codes, the trip->temperature used "unsigned long"
and zone->temperature used"int", if the temperature is negative
value, it will get wrong result when compare temperature with
trip temperature.

This patch can fix it.

Signed-off-by: Wei Ni 
Signed-off-by: Eduardo Valentin

thermal: fix mtk_thermal build dependency

2016-04-20T23:22:46+00:00

Fix build errors when MTK_THERMAL=y and NVMEM=m by preventing that
Kconfig combination.

drivers/built-in.o: In function `mtk_thermal_probe':
mtk_thermal.c:(.text+0xffa8f): undefined reference to `nvmem_cell_get'
mtk_thermal.c:(.text+0xffabe): undefined reference to `nvmem_cell_read'
mtk_thermal.c:(.text+0xffac9): undefined reference to `nvmem_cell_put'

Signed-off-by: Randy Dunlap 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Cc: 
Cc: Sascha Hauer 
Cc: Hanyi Wu 
Signed-off-by: Eduardo Valentin

thermal: minor mtk_thermal.c cleanups

2016-04-20T23:22:46+00:00

Trivial cleanups:
- delete one duplicate #include
- end email address with closing '>'

Signed-off-by: Randy Dunlap 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Cc: Sascha Hauer 
Cc: Hanyi Wu 
Signed-off-by: Eduardo Valentin

thermal: power_allocator: req_range multiplication should be a 64 bit type

2016-04-20T23:22:45+00:00

req_range is declared as a u64 to cope with overflows in the
multiplication of two u32.  As both req_power and power_range are u32,
we need to make sure the multiplication is done with u64 types.

Reported-by: Dan Carpenter 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Signed-off-by: Javi Merino 
Signed-off-by: Eduardo Valentin

thermal: of: add __init attribute

2016-04-20T23:22:45+00:00

Add __init attribute on a function that is only called from other __init
functions and that is not inlined, at least with gcc version 4.8.4 on an
x86 machine with allyesconfig.  Currently, the function is put in the
.text.unlikely segment.  Declaring it as __init will cause it to be put in
the .init.text and to disappear after initialization.

The result of objdump -x on the function before the change is as follows:

0000000000000086 l     F .text.unlikely 0000000000000739 thermal_of_build_thermal_zone

And after the change it is as follows:

0000000000000000 l     F .init.text	0000000000000734 thermal_of_build_thermal_zone

Done with the help of Coccinelle.  The semantic patch checks for local
static non-init functions that are called from an __init function and are
not called from any other function.

Signed-off-by: Julia Lawall 
Signed-off-by: Eduardo Valentin

Thermal: Ignore invalid trip points

2016-03-18T06:10:57+00:00

In some cases, platform thermal driver may report invalid trip points,
thermal core should not take any action for these trip points.

This fixed a regression that bogus trip point starts to screw up thermal
control on some Lenovo laptops, after
commit bb431ba26c5cd0a17c941ca6c3a195a3a6d5d461
Author: Zhang Rui 
Date:   Fri Oct 30 16:31:47 2015 +0800

    Thermal: initialize thermal zone device correctly

    After thermal zone device registered, as we have not read any
    temperature before, thus tz->temperature should not be 0,
    which actually means 0C, and thermal trend is not available.
    In this case, we need specially handling for the first
    thermal_zone_device_update().

    Both thermal core framework and step_wise governor is
    enhanced to handle this. And since the step_wise governor
    is the only one that uses trends, so it's the only thermal
    governor that needs to be updated.

    Tested-by: Manuel Krause 
    Tested-by: szegad 
    Tested-by: prash 
    Tested-by: amish 
    Tested-by: Matthias 
    Reviewed-by: Javi Merino 
    Signed-off-by: Zhang Rui 
    Signed-off-by: Chen Yu 

CC:  #3.18+
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1317190
Link: https://bugzilla.kernel.org/show_bug.cgi?id=114551
Signed-off-by: Zhang Rui

Merge branches 'thermal-core', 'thermal-intel' and 'thermal-soc' into next

2016-03-14T23:54:06+00:00