After removing exynos_thermal_common.[c|h] files the CONFIG_EXYNOS_THERMA_CORE
is not needed anymore.
This patch removes this entry from Kconfig.
Reported-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Data already present in the exynos_tmu_data.c file has been moved to the
appropriate device tree files.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

In general, the kernel should report temperature readings exactly as
reported by the hardware. The cpu / gpu thermal driver works in 5 degree
increments,but we ought to do more accurate. The temperature will do
linear interpolation between the entries in the table.

Test= $md5sum /dev/zero &
$while true; do grep "" /sys/class/thermal/thermal_zone[1-2]/temp;
sleep .5; done

e.g. We can get the result as follows:
    /sys/class/thermal/thermal_zone1/temp:39994
    /sys/class/thermal/thermal_zone2/temp:39086
    /sys/class/thermal/thermal_zone1/temp:39994
    /sys/class/thermal/thermal_zone2/temp:39540
    /sys/class/thermal/thermal_zone1/temp:39540
    /sys/class/thermal/thermal_zone2/temp:39540
    /sys/class/thermal/thermal_zone1/temp:39540
    /sys/class/thermal/thermal_zone2/temp:39994
Reviewed-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: NDaniel Kurtz <djkurtz@chromium.org>
Signed-off-by: NCaesar Wang <wxt@rock-chips.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

After defining all necessary Exynos data in the device tree and heavy
reusage of the of-thermal.c those files can be removed.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

This patch brings support for providing configuration via device tree.
Previously this data has been hardcoded in the exynos_tmu_data.c file.
Such approach was not scalable and very often required copying the whole
data.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Up till now exynos_tmu_data.c was used for storing CPU cooling configuration
data. Now the Exynos thermal core code uses device tree to get this data.
For this purpose generic thermal code for configuring CPU cooling was
used.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

This patch is a preparatory patch to be able to read Exynos thermal
configuration from the device tree.

It turned out that DTC is not able to interpret enums properly and hence
it is necessary to #define those values explicitly.

For this reason the ./include/dt-bindings/thermal/thermal_exynos.h file
has been introduced.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Up till now the thermal_zone mode was by default "disabled". With this
patch the default behavior was changed to "enable".

One can read the mode at:
/sys/class/thermal/thermal_zone0/mode
Tested-by: NJavi Merino <javi.merino@arm.com>
Reported-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Since the ctemp is used for rcar_thermal_write() in
rcar_thermal_update_temp(), the type of 'ctemp' should be "u32" instead
of "int". This patch also changes type of the helper variables 'old'
and 'new'.
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

On R-Mobile APE6, since it has 3 thermal zones, ENR register
has enable bits in bit 19-16, bit 11-8 and bit 3-0.

However, on R-Car gen2, since it has 1 thermal zone, ENR register has
enable bits in bit 3-0. (In other words, the write value should always
be 0 for bit 31-4 of ENR register.)

So, this patch fixes the ENR register value using I/O resource sets.
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Thermal sensor's clk is from pll3_usb_otg, per hardware
design requirement, need to make sure pll3_usb_otg is disabled
before STOP mode is entered, otherwise, all PFDs under it may
enter incorrect state, this patch disables pll3_usb_otg before
suspend and enables it after resume.
Signed-off-by: NAnson Huang <b20788@freescale.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

 there is no ACPI device object

processor_thermal_device driver needs ACPI support to work. Thus, the driver
probing should fail when there is no ACPI device object asscociated.

This fixes a NULL pointer dereference when the driver is loaded
with INT340X feature disabled in BIOS.
Reported-by: NChen Yu <yu.c.chen@intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>
Tested-by: NChen Yu <yu.c.chen@intel.com>

For some INT340X thermal devices, even if they are not referred in
_TRT/_ART table, they still can be used by userspace for thermal control.
Thus change the code to enumerated all the INT340X devices,
no matter if they're referred in _TRT/_ART or not.
Signed-off-by: NZhang Rui <rui.zhang@intel.com>
Tested-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

With gcc 4.1.2, 4.2, and 4.2.4 (4.4 and later are OK):

drivers/thermal/thermal_core.h:110: warning: type qualifiers ignored on function return type
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Fixes: ce8be778 ("thermal: of: Extend of-thermal to export table of trip points")
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Remove acpi notification handler when zone is removed.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

Address memory leak for buffer allocated with ACPI_ALLOCATE_BUFFER.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

Address memory leak for buffer allocated with ACPI_ALLOCATE_BUFFER.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

The Int340x thermal provides a processor thermal device, which
is used to control processor thermal states. These devices are
either reported as a PCI device or an ACPI device. This
device provides power limits, control states and optional
temperature.
This change implements minimal requirements to expose processor
power limits which can be used during thermal power limiting.
Power limits are exposed via an attribute group called
"power_limits" under the device. The exported attributes
are:
power_limit_0_max_uw
power_limit_1_max_uw
power_limit_0_min_uw
power_limit_1_min_uw
power_limit_0_tmin_us
power_limit_1_tmin_us
power_limit_0_tmax_us
power_limit_1_tmax_us
power_limit_0_step_uw
power_limit_1_step_uw
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

This platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

This platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: NWolfram Sang <wsa@the-dreams.de>

The node field of struct cpufreq_cooling_device was reintroduced in
2dcd851f (thermal: cpu_cooling: Update always cpufreq policy with
thermal constraints) but without the documentation that it once had.
Add it back so that all the fields of struct cpufreq_cooling_device
are documented.

Cc: Yadwinder Singh Brar <yadi.brar@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: NJavi Merino <javi.merino@arm.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

Enable Intel Powerclamp driver on Xeon cpu id 0x56, package C-state
is available on this CPU for idle injection.
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

If either of the entries was missing, the driver tried to free memory
using uninitialized pointer. In addition, it was dereferencing null
pointer.
Signed-off-by: NIlkka Koskinen <ilkka.koskinen@linux.intel.com>
Acked-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

commit 4dbd2771 "tick: export nohz tick idle symbols for module
use" was merged via the thermal tree without an explicit ack from the
relevant maintainers.

The exports are abused by the intel powerclamp driver which implements
a fake idle state from a sched FIFO task. This causes all kinds of
wreckage in the NOHZ core code which rightfully assumes that
tick_nohz_idle_enter/exit() are only called from the idle task itself.

Recent changes in the NOHZ core lead to a failure of the powerclamp
driver and now people try to hack completely broken and backwards
workarounds into the NOHZ core code. This is completely unacceptable
and just papers over the real problem. There are way more subtle
issues lurking around the corner.

The real solution is to fix the powerclamp driver by rewriting it with
a sane concept, but that's beyond the scope of this.

So the only solution for now is to remove the calls into the core NOHZ
code from the powerclamp trainwreck along with the exports. 

Fixes: d6d71ee4 "PM: Introduce Intel PowerClamp Driver"
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Pan Jacob jun <jacob.jun.pan@intel.com>
Cc: LKP <lkp@01.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1412181110110.17382@nanosSigned-off-by: NThomas Gleixner <tglx@linutronix.de>

There was a left over return here so the error handling isn't run.
It leads to a small memory leak and a static checker warning.

	drivers/thermal/cpu_cooling.c:351 __cpufreq_cooling_register()
	info: ignoring unreachable code.

Fixes: f6859014 ("thermal: cpu_cooling: Store frequencies in descending order")
Acked-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Avoid printing the error message in the EPROBE_DEFER case
where registering cpu cooling at ti-soc-thermal thermal driver.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Avoid printing the error message in the EPROBE_DEFER case
where registering cpu cooling at db8500 thermal driver.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

During imx_thermal probe we have the following log:

[    1.514819] imx_thermal 2000000.aips-bus:tempmon: failed to register cpufreq cooling device: -517
[    1.515064] platform 2000000.aips-bus:tempmon: Driver imx_thermal requests probe deferral

Avoid printing the error message in the EPROBE_DEFER case.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

As samsung thermal support is enabled only for ARCH_EXYNOS, there is no
need to select ARCH_HAS_BANDGAP from the arch-specific code. Removing this
dependency will also allow the driver to be enabled on 64-bit SoCs.
Reviewed-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: NLukasz Majewski <l.majewski@samsung.com>
Acked-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Previously the return value of the last acpi_bus_get_device() was
returned. However, since we only report those issues, it should be
cleared to continue as expected.
Signed-off-by: NIlkka Koskinen <ilkka.koskinen@linux.intel.com>
Acked-by: NJacob Pan <jacob.jun.pan@linux.intel.com>

Braswell also has package C-states which can be used for idle
injection. This patch adds Braswell CPU ID in intel powerclamp
driver.
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

The driver calls spin_lock_irqsave during DTS interrupt. The interrupt
handle then calls thermal_zone_device_update which implicitly calls
a sleep function and produce the following bug:

BUG: sleeping function called from invalid context at kernel/locking/mutex.c:97
in_atomic(): 1, irqs_disabled(): 1, pid: 920, name: irq/86-soc_dts
CPU: 0 PID: 920 Comm: irq/86-soc_dts Tainted: G            E  3.17.0-rc2+ #1
Hardware name: Intel Corp. VALLEYVIEW B3 PLATFORM/NOTEBOOK, BIOS BYTICRB1.86C.0092.R31.1408290850 08/29/2014
 00000000 00000000 c25dbe74 c1818cfd f3cc488c c25dbe9c c1059305 c1b4063b
 00000001 00000001 00000398 f3cc488c f6817644 f6817644 f3ecc6c0 c25dbea8
 c18208f2 f6817400 c25dbebc c159b0bb c25dbedc f6817400 f32a2300 c25dbee8
Call Trace:
 [<c1818cfd>] dump_stack+0x48/0x60
 [<c1059305>] __might_sleep+0xec/0xf4
 [<c18208f2>] mutex_lock+0x1c/0x34
 [<c159b0bb>] thermal_zone_get_temp+0x34/0x59
 [<c159bde5>] thermal_zone_device_update+0x2d/0xcb
 [<f85da16a>] ? iosf_mbi_write+0x6c/0x74 [iosf_mbi]
 [<f7c7445d>] soc_irq_thread_fn+0x10c/0x163 [intel_soc_dts_thermal]
 [<c107b72b>] irq_thread_fn+0x18/0x2a
 [<c107bedb>] irq_thread+0x81/0x11f
 [<c107b713>] ? irq_finalize_oneshot+0x7c/0x7c
 [<c107bf79>] ? irq_thread+0x11f/0x11f
 [<c107be5a>] ? wake_threads_waitq+0x31/0x31
 [<c1054217>] kthread+0x87/0x8c
 [<c1821e41>] ret_from_kernel_thread+0x21/0x30
 [<c1054190>] ? __kthread_parkme+0x55/0x55
Signed-off-by: NMaurice Petallo <mauricex.r.petallo@intel.com>
Acked-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: NEduardo Valentin <edubezval@gmail.com>
CC: Kweh, Hock Leong <hock.leong.kweh@intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

drivers/thermal/int340x_thermal/int3403_thermal.c:468:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
Acked-by: NZhang Rui <rui.zhang@intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

Avoid pointer casting which may also lead to problems on big endian
64 bit systems.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

The thermal_zone_device_unregister() function tests whether its argument
is NULL and then returns immediately. Thus the test around the call
is not needed.

This issue was detected by using the Coccinelle software.
Signed-off-by: NMarkus Elfring <elfring@users.sourceforge.net>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

INT3400 currently supports only one policy, which can't be changed.
This change exports all available policies (uuids) to user space and
allow this to be changed.
It introduces an attribute group uuids in INT3400 platform driver.
There are two attributes exposed:
- available_uuids
- current_uuid

User space can set current_uuid via this interface to one of the
available uuids. The uuid change is communicated to firmware, only
when the current zone mode is changed to "enabled". So the ideal
sequence should be
- set INT3400 zone mode to "disabled"
- change current_uuid
- set INT3400 zone mode to "enabled"
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>

The return code from ->get_max_state() callback was not checked during
binding cooling device to thermal zone device.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Before this change it was only possible to set get_temp() and get_trend()
methods to be used in the common code handling passing parameters via
device tree to "cpu-thermal" CPU thermal zone device.

Now it is possible to also set emulated value of temperature for debug
purposes.
Signed-off-by: NLukasz Majewski <l.majewski@samsung.com>
Acked-by: NEduardo Valentin <edubezval@gmail.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>