Commit Graph

3928 Commits

Author SHA1 Message Date
Ingo Molnar
2d65685a4a Merge branch 'x86/urgent' into x86/cleanups
Refresh the branch for a dependent commit.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-07-26 19:52:30 +02:00
Maciej S. Szmigiero
c66ef39eb2 hwmon: (drivetemp) Avoid SCT usage on Toshiba DT01ACA family drives
It has been observed that Toshiba DT01ACA family drives have
WRITE FPDMA QUEUED command timeouts and sometimes just freeze until
power-cycled under heavy write loads when their temperature is getting
polled in SCT mode. The SMART mode seems to be fine, though.

Let's make sure we don't use SCT mode for these drives then.

While only the 3 TB model was actually caught exhibiting the problem let's
play safe here to avoid data corruption and extend the ban to the whole
family.

Fixes: 5b46903d8b ("hwmon: Driver for disk and solid state drives with temperature sensors")
Cc: stable@vger.kernel.org
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Link: https://lore.kernel.org/r/0cb2e7022b66c6d21d3f189a12a97878d0e7511b.1595075458.git.mail@maciej.szmigiero.name
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-18 08:11:44 -07:00
Cristian Marussi
3ce17cd2b9 hwmon: (scmi) Fix potential buffer overflow in scmi_hwmon_probe()
SMATCH detected a potential buffer overflow in the manipulation of
hwmon_attributes array inside the scmi_hwmon_probe function:

drivers/hwmon/scmi-hwmon.c:226
 scmi_hwmon_probe() error: buffer overflow 'hwmon_attributes' 6 <= 9

Fix it by statically declaring the size of the array as the maximum
possible as defined by hwmon_max define.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20200715121338.GA18761@e119603-lin.cambridge.arm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-15 07:08:21 -07:00
Guenter Roeck
8a03746c8b hwmon: (nct6775) Accept PECI Calibration as temperature source for NCT6798D
Stefan Dietrich reports invalid temperature source messages on Asus Formula
XII Z490.

nct6775 nct6775.656: Invalid temperature source 28 at index 0,
		source register 0x100, temp register 0x73

Debugging suggests that temperature source 28 reports the CPU temperature.
Let's assume that temperature sources 28 and 29 reflect "PECI Agent {0,1}
Calibration", similar to other chips of the series.

Reported-by: Stefan Dietrich <roots@gmx.de>
Cc: Stefan Dietrich <roots@gmx.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-14 14:38:50 -07:00
Chu Lin
6d1d41c075 hwmon: (adm1275) Make sure we are reading enough data for different chips
Issue:
When PEC is enabled, binding adm1272 to the adm1275 would
fail due to PEC error. See below:
adm1275: probe of xxxx failed with error -74

Diagnosis:
Per the datasheet of adm1272, adm1278, adm1293 and amd1294,
PMON_CONFIG (0xd4) is 16bits wide. On the other hand,
PMON_CONFIG (0xd4) for adm1275 is 8bits wide. The driver should not
assume everything is 8bits wide and read only 8bits from it.

Solution:
If it is adm1272, adm1278, adm1293 and adm1294, use i2c_read_word.
Else, use i2c_read_byte

Testing:
Binding adm1272 to the driver.
The change is only tested on adm1272.

Signed-off-by: Chu Lin <linchuyuan@google.com>
Link: https://lore.kernel.org/r/20200709040612.3977094-1-linchuyuan@google.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-09 07:02:35 -07:00
Vishwas M
14b0e83dc4 hwmon: (emc2103) fix unable to change fan pwm1_enable attribute
This patch fixes a bug which does not let FAN mode to be changed from
sysfs(pwm1_enable). i.e pwm1_enable can not be set to 3, it will always
remain at 0.

This is caused because the device driver handles the result of
"read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg)" incorrectly. The
driver thinks an error has occurred if the (result != 0). This has been
fixed by changing the condition to (result < 0).

Signed-off-by: Vishwas M <vishwas.reddy.vr@gmail.com>
Link: https://lore.kernel.org/r/20200707142747.118414-1-vishwas.reddy.vr@gmail.com
Fixes: 9df7305b5a ("hwmon: Add driver for SMSC EMC2103 temperature monitor and fan controller")
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-07 07:54:32 -07:00
Naveen Krishna Chatradhi
f28e360f29 hwmon: (amd_energy) match for supported models
The energy counters of certain models seems to be reporting
inconsistent values. Hence, match for the supported models.

Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Fixes: 8abee9566b ("hwmon: Add amd_energy driver to report energy counters")
Link: https://lore.kernel.org/r/20200706171715.124993-1-nchatrad@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-07 07:14:52 -07:00
Evgeny Novikov
bc4071aafc hwmon: (aspeed-pwm-tacho) Avoid possible buffer overflow
aspeed_create_fan() reads a pwm_port value using of_property_read_u32().
If pwm_port will be more than ARRAY_SIZE(pwm_port_params), there will be
a buffer overflow in
aspeed_create_pwm_port()->aspeed_set_pwm_port_enable(). The patch fixes
the potential buffer overflow.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Link: https://lore.kernel.org/r/20200703111518.9644-1-novikov@ispras.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-05 20:45:45 -07:00
Tao Ren
0d242479b3 hwmon: (pmbus) fix a typo in Kconfig SENSORS_IR35221 option
Fix a typo in SENSORS_IR35221 option: module name should be "ir35221"
instead of "ir35521".

Fixes: 8991ebd9c9 ("hwmon: (pmbus) Add client driver for IR35221")

Cc: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: Tao Ren <rentao.bupt@gmail.com>
Link: https://lore.kernel.org/r/20200702221349.18139-1-rentao.bupt@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-07-02 17:43:14 -07:00
Misono Tomohiro
8b97f99222 hwmon: (acpi_power_meter) Fix potential memory leak in acpi_power_meter_add()
Although it rarely happens, we should call free_capabilities()
if error happens after read_capabilities() to free allocated strings.

Fixes: de584afa5e ("hwmon driver for ACPI 4.0 power meters")
Signed-off-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Link: https://lore.kernel.org/r/20200625043242.31175-1-misono.tomohiro@jp.fujitsu.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-06-25 16:06:06 -07:00
Chu Lin
016983d138 hwmon: (max6697) Make sure the OVERT mask is set correctly
Per the datasheet for max6697, OVERT mask and ALERT mask are different.
For example, the 7th bit of OVERT is the local channel but for alert
mask, the 6th bit is the local channel. Therefore, we can't apply the
same mask for both registers. In addition to that, the max6697 driver
is supposed to be compatibale with different models. I manually went over
all the listed chips and made sure all chip types have the same layout.

Testing;
    mask value of 0x9 should map to 0x44 for ALERT and 0x84 for OVERT.
    I used iotool to read the reg value back to verify. I only tested this
    change on max6581.

Reference:
https://datasheets.maximintegrated.com/en/ds/MAX6581.pdf
https://datasheets.maximintegrated.com/en/ds/MAX6697.pdf
https://datasheets.maximintegrated.com/en/ds/MAX6699.pdf

Signed-off-by: Chu Lin <linchuyuan@google.com>
Fixes: 5372d2d71c ("hwmon: Driver for Maxim MAX6697 and compatibles")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-06-24 09:57:25 -07:00
Jan Kundrát
b4c8af4c2a hwmon: (pmbus) Fix page vs. register when accessing fans
Commit 16358542f3 ("hwmon: (pmbus) Implement multi-phase support")
added support for multi-phase pmbus devices. However, when calling
pmbus_add_sensor() for fans, the patch swapped the `page` and `reg`
attributes. As a result, the fan speeds were reported as 0 RPM on my device.

Signed-off-by: Jan Kundrát <jan.kundrat@cesnet.cz>
Fixes: 16358542f3 ("hwmon: (pmbus) Implement multi-phase support")
Cc: stable@vger.kernel.org # v5.7+
Link: https://lore.kernel.org/r/449bc9e6c0e4305581e45905ce9d043b356a9932.1592904387.git.jan.kundrat@cesnet.cz
[groeck: Fixed references to offending commit]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-06-23 06:31:28 -07:00
Guenter Roeck
26797d8b46 hwmon: (bt1-pvt) Mark is_visible functions static
0-day reports:

drivers/hwmon/bt1-pvt.c:303:16: warning:
	no previous declaration for 'pvt_limit_is_visible'
drivers/hwmon/bt1-pvt.c:308:16: warning:
	no previous declaration for 'pvt_alarm_is_visible'

Declare both functions static.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 87976ce2825d("hwmon: Add Baikal-T1 PVT sensor driver")
Cc: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-06-23 06:29:32 -07:00
Serge Semin
332516947e hwmon: (bt1-pvt) Define Temp- and Volt-to-N poly as maybe-unused
Clang-based kernel building with W=1 warns that some static const
variables are unused:

drivers/hwmon/bt1-pvt.c:67:30: warning: unused variable 'poly_temp_to_N' [-Wunused-const-variable]
static const struct pvt_poly poly_temp_to_N = {
                             ^
drivers/hwmon/bt1-pvt.c:99:30: warning: unused variable 'poly_volt_to_N' [-Wunused-const-variable]
static const struct pvt_poly poly_volt_to_N = {
                             ^

Indeed these polynomials are utilized only when the PVT sensor alarms are
enabled. In that case they are used to convert the temperature and
voltage alarm limits from normal quantities (Volts and degree Celsius) to
the sensor data representation N = [0, 1023]. Otherwise when alarms are
disabled the driver only does the detected data conversion to the human
readable form and doesn't need that polynomials defined. So let's mark the
Temp-to-N and Volt-to-N polynomials with __maybe_unused attribute.

Note gcc with W=1 doesn't notice the problem.

Fixes: 87976ce282 ("hwmon: Add Baikal-T1 PVT sensor driver")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Maxim Kaurkin <Maxim.Kaurkin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20200603000753.391-1-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-06-23 06:29:32 -07:00
Borislav Petkov
1068ed4547 x86/msr: Lift AMD family 0x15 power-specific MSRs
... into the global msr-index.h header because they're used in multiple
compilation units. Sort the MSR list a bit. Update the msr-index.h copy
in tools.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20200608164847.14232-1-bp@alien8.de
2020-06-15 19:25:53 +02:00
Thomas Gleixner
f77d26a9fc Merge branch 'x86/entry' into ras/core
to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow
up patches can be applied without creating a horrible merge conflict
afterwards.
2020-06-11 15:17:57 +02:00
Serge Semin
87976ce282 hwmon: Add Baikal-T1 PVT sensor driver
Baikal-T1 SoC provides an embedded process, voltage and temperature
sensor to monitor an internal SoC environment (chip temperature, supply
voltage and process monitor) and on time detect critical situations,
which may cause the system instability and even damages. The IP-block
is based on the Analog Bits PVT sensor, but is equipped with a
dedicated control wrapper, which provides a MMIO registers-based access
to the sensor core functionality (APB3-bus based) and exposes an
additional functions like thresholds/data ready interrupts, its status
and masks, measurements timeout. All of these is used to create a hwmon
driver being added to the kernel by this commit.

The driver implements support for the hardware monitoring capabilities
of Baikal-T1 process, voltage and temperature sensors. PVT IP-core
consists of one temperature and four voltage sensors, each of which is
implemented as a dedicated hwmon channel config.

The driver can optionally provide the hwmon alarms for each sensor the
PVT controller supports. The alarms functionality is made compile-time
configurable due to the hardware interface implementation peculiarity,
which is connected with an ability to convert data from only one sensor
at a time. Additional limitation is that the controller performs the
thresholds checking synchronously with the data conversion procedure.
Due to these limitations in order to have the hwmon alarms
automatically detected the driver code must switch from one sensor to
another, read converted data and manually check the threshold status
bits. Depending on the measurements timeout settings this design may
cause additional burden on the system performance. By default if the
alarms kernel config is disabled the data conversion is performed by
the driver on demand when read operation is requested via corresponding
_input-file.

Co-developed-by: Maxim Kaurkin <maxim.kaurkin@baikalelectronics.ru>
Signed-off-by: Maxim Kaurkin <maxim.kaurkin@baikalelectronics.ru>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-28 07:59:45 -07:00
Guenter Roeck
1597b374af hwmon: Add notification support
For hwmon drivers using the hwmon_device_register_with_info() API, it
is desirable to have a generic notification mechanism available. This
mechanism can be used to notify userspace as well as the thermal
subsystem if the driver experiences any events, such as warning or
critical alarms.

Implement hwmon_notify_event() to provide this mechanism. The function
generates a sysfs event and a udev event. If the device is registered
with the thermal subsystem and the event is associated with a temperature
sensor, also notify the thermal subsystem that a thermal event occurred.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Maxim Kaurkin <Maxim.Kaurkin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-28 07:59:45 -07:00
Arnd Bergmann
fff2d0f701 hwmon: (applesmc) avoid overlong udelay()
Building this driver with "clang -O3" produces a link error
after the compiler partially unrolls the loop and 256ms
becomes a compile-time constant that triggers the check
in udelay():

ld.lld: error: undefined symbol: __bad_udelay
>>> referenced by applesmc.c
>>>               hwmon/applesmc.o:(read_smc) in archive drivers/built-in.a

I can see no reason against using a sleeping function here,
as no part of the driver runs in atomic context, so instead use
usleep_range() with a wide range and use jiffies for the
end condition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200527135207.1118624-1-arnd@arndb.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-27 09:18:13 -07:00
Yuechao Zhao
156ad7f9e0 hwmon: (nct7904) Set default timeout
The timeout module parameter should not be used for setting the default
timeout. Because, if you set the timeout = 0, the default timeout will
be meaningless. And the timeout module parameter of 0 means "no timeout
module parameter specified".

Signed-off-by: Yuechao Zhao <yuechao.zhao@advantech.com.cn>
Link: https://lore.kernel.org/r/1590560219-41328-1-git-send-email-yuechao.zhao@advantech.com.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-26 23:46:24 -07:00
Wei Yongjun
59dd36f41e hwmon: (amd_energy) Missing platform_driver_unregister() on error in amd_energy_init()
Add the missing platform_driver_unregister() before return
from amd_energy_init() in the error handling case.

Fixes: 8abee9566b ("hwmon: Add amd_energy driver to report energy counters")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Naveen krishna Chatradhi <nchatrad@amd.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200527022417.105620-1-weiyongjun1@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-26 20:24:49 -07:00
Alexander Monakov
279f0b3a4b hwmon: (k10temp) Add AMD family 17h model 60h PCI match
Add support for retrieving Tdie and Tctl on AMD Renoir (4000-series
Ryzen CPUs).

It appears SMU offsets for reading current/voltage and CCD temperature
have changed for this generation (reads from currently used offsets
yield zeros), so those features cannot be enabled so trivially.

Signed-off-by: Alexander Monakov <amonakov@ispras.ru>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20200510204842.2603-3-amonakov@ispras.ru
2020-05-22 18:39:07 +02:00
Guenter Roeck
8054eadca7 Immutable branch between MFD and HWMON due for the v5.8 merge window
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Merge tag 'ib-mfd-hwmon-v5.8' into hwmon-next

Immutable branch between MFD and HWMON due for the v5.8 merge window
2020-05-22 06:29:55 -07:00
Naveen Krishna Chatradhi
8abee9566b hwmon: Add amd_energy driver to report energy counters
This patch adds hwmon based amd_energy driver support for
family 17h processors from AMD.

The driver provides following interface to the userspace
1. Reports the per core consumption
	* file: "energy%d_input", label: "Ecore%03d"
2. Reports per socket energy consumption
	* file: "energy%d_input", label: "Esocket%d"
3. To, increase the wrap around time of the socket energy
   counters, a 64bit accumultor is implemented.
4. Reports scaled energy value in Joules.

Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Link: https://lore.kernel.org/r/20200519155011.56184-1-nchatrad@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
hailizheng
d06f9e6c89 hwmon: (nct7802) Replace container_of() API
Replace container_of() API with kobj_to_dev().

Signed-off-by: hailizheng <haili.zheng@powercore.com.cn>
Link: https://lore.kernel.org/r/1589891119-16508-1-git-send-email-haili.zheng@powercore.com.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Josh Lehan
229d495d81 hwmon: (lm90) Add max6654 support to lm90 driver
Add support for the Maxim MAX6654 to the lm90 driver.

The MAX6654 is a temperature sensor, similar to the others,
but with some differences regarding the configuration
register, and the sampling rate at which extended resolution
becomes possible.

Signed-off-by: Josh Lehan <krellan@google.com>
Link: https://lore.kernel.org/r/20200513184248.145765-1-krellan@google.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
zhouchuangao
036855a4c3 hwmon : (nct6775) Use kobj_to_dev() API
Use kobj_to_dev() API instead of container_of().

Signed-off-by: zhouchuangao <zhouchuangao@xiaomi.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Guenter Roeck
2138f8853a hwmon: (pmbus) Driver for Maxim MAX16601
MAX16601 is a VR13.HC Dual-Output Voltage Regulator Chipset,
implementing a (8+1) multiphase synchronous buck converter.

Cc: Alex Qiu <xqiu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Guenter Roeck
d86f3c9bba hwmon: (pmbus) Improve initialization of 'currpage' and 'currphase'
The 'currpage' and 'currphase' variables in struct pmbus_data are used by
the PMBus core to determine if the phase or page value has changed. Both
are initialized with values which are never expected to be set in the code
to ensure that the first page/phase write operation is actually performed.

This is not well explained and occasionally causes confusion. Change the
type of both variables to s16 and initialize with -1 to ensure that the
initial value never matches a requested value, and clarify that this
value means "unknown/unset".

Cc: Alex Qiu <xqiu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Wolfram Sang
6e0498dd5c hwmon: (adt7411) update contact email
My 'pengutronix' address is defunct for years. Merge the entries and use
the proper contact address.

Signed-off-by: Wolfram Sang <wsa@kernel.org>
Link: https://lore.kernel.org/r/20200502142700.19254-1-wsa@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Michal Orzel
8cbf217223 hwmon: (lm75) Fix all coding-style warnings on lm75 driver
Check/fix all warnings generated by checkpatch.pl script on LM75 driver.

Signed-off-by: Michal Orzel <michalorzel.eng@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Akinobu Mita
44e3ad882b hwmon: Reduce indentation level in __hwmon_device_register()
Reduce indentation level in __hwmon_device_register() by preparing a
helper function.

This just improves code readability.  No functional change.

Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Alex Qiu
5a56a39be7 hwmon: (ina2xx) Implement alert functions
Implement alert functions for INA226, INA230 and INA231. Expose 06h
Mask/Enable and 07h Alert Limit registers via alert setting and alarm
files.

Signed-off-by: Alex Qiu <xqiu@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Andrej Picej
b58bd4c6df hwmon: (lm70) Add support for ACPI
This commit adds support for lm70 commpatible drivers with systems that
use ACPI.

Signed-off-by: Andrej Picej <andpicej@gmail.com>
[groeck: Fix various issues seen if CONFIG_ACPI=n]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Thomas Hebb
b8a13e5e8f hwmon: (dell-smm) Use one DMI match for all XPS models
Currently, each new XPS has to be added manually for module autoloading
to work. Since fan multiplier autodetection should work fine on all XPS
models, just match them all with one block like is done for Precision
and Studio.

The only match we replace that doesn't already use autodetection is
"XPS13" which, according to Google, only matches the XPS 13 9333. (All
other XPS 13 models have "XPS" as its own word, surrounded by spaces.)
According to the thread at [1], autodetection works for the XPS 13 9333,
meaning this shouldn't regress it. I do not own one to confirm with,
though.

Tested on an XPS 13 9350 and confirmed the module now autoloads and
reports reasonable-looking data. I am using BIOS 1.12.2 and do not see
any freezes when querying fan speed.

[1] https://lore.kernel.org/patchwork/patch/525367/

Signed-off-by: Thomas Hebb <tommyhebb@gmail.com>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/5d7e498b83e89ce7c41a449b61919c65d0770b73.1586033337.git.tommyhebb@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Yuechao Zhao
77849a552d hwmon: (nct7904) Add watchdog function
Implement watchdog functionality for NCT7904.

Signed-off-by: Yuechao Zhao <yuechao.zhao@advantech.com.cn>
Link: https://lore.kernel.org/r/20200331052850.5419-1-yuechao.zhao@advantech.com.cn
[groeck: Squashed fixup patch]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-22 06:28:38 -07:00
Tim Harvey
3bce5377ef hwmon: Add Gateworks System Controller support
The Gateworks System Controller has a hwmon sub-component that exposes
up to 16 ADC's, some of which are temperature sensors, others which are
voltage inputs. The ADC configuration (register mapping and name) is
configured via device-tree and varies board to board.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-05-20 10:29:17 +01:00
Samu Nuutamo
333e22db22 hwmon: (da9052) Synchronize access with mfd
When tsi-as-adc is configured it is possible for in7[0123]_input read to
return an incorrect value if a concurrent read to in[456]_input is
performed. This is caused by a concurrent manipulation of the mux
channel without proper locking as hwmon and mfd use different locks for
synchronization.

Switch hwmon to use the same lock as mfd when accessing the TSI channel.

Fixes: 4f16cab19a ("hwmon: da9052: Add support for TSI channel")
Signed-off-by: Samu Nuutamo <samu.nuutamo@vincit.fi>
[rebase to current master, reword commit message slightly]
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-13 10:06:09 -07:00
Amy Shih
7b2fd270af hwmon: (nct7904) Fix incorrect range of temperature limit registers
The format of temperature limitation registers are 8-bit 2's complement
and the range is -128~127.
Converts the reading value to signed char to fix the incorrect range
of temperature limitation registers.

Signed-off-by: Amy Shih <amy.shih@advantech.com.tw>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-13 07:24:51 -07:00
Amy Shih
6d44e43f22 hwmon: (nct7904) Read all SMI status registers in probe function
When nct7904 power up, it compares current sensor readings against the
default threshold immediately. This results in false alarms on startup.
Read all SMI status registers in probe function to clear the alarms.

Signed-off-by: Amy Shih <amy.shih@advantech.com.tw>
[groeck: Reworded description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-13 07:23:11 -07:00
Guenter Roeck
bcb543cc3d hwmon: (drivetemp) Fix SCT support if SCT data tables are not supported
If SCT is supported but SCT data tables are not, the driver unnecessarily
tries to fall back to SMART. Use SCT without data tables instead in this
situation.

Fixes: 5b46903d8b ("hwmon: Driver for disk and solid state drives with temperature sensors")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-05-09 13:22:34 -07:00
Sascha Hauer
c843b382e6 hwmon: (jc42) Fix name to have no illegal characters
The jc42 driver passes I2C client's name as hwmon device name. In case
of device tree probed devices this ends up being part of the compatible
string, "jc-42.4-temp". This name contains hyphens and the hwmon core
doesn't like this:

jc42 2-0018: hwmon: 'jc-42.4-temp' is not a valid name attribute, please fix

This changes the name to "jc42" which doesn't have any illegal
characters.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20200417092853.31206-1-s.hauer@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-04-18 10:13:07 -07:00
Jason Yan
0e786f328b hwmon: (k10temp) make some symbols static
Fix the following sparse warning:

drivers/hwmon/k10temp.c:189:12: warning: symbol 'k10temp_temp_label' was
not declared. Should it be static?
drivers/hwmon/k10temp.c:202:12: warning: symbol 'k10temp_in_label' was
not declared. Should it be static?
drivers/hwmon/k10temp.c:207:12: warning: symbol 'k10temp_curr_label' was
not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200409084502.42126-1-yanaijie@huawei.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-04-12 15:12:51 -07:00
Guenter Roeck
ed08ebb712 hwmon: (drivetemp) Return -ENODATA for invalid temperatures
Holger Hoffstätte observed that Samsung 850 Pro may return invalid
temperatures for a short period of time after resume. Return -ENODATA
to userspace if this is observed.

Fixes:  5b46903d8b ("hwmon: Driver for disk and solid state drives with temperature sensors")
Reported-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Cc: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-04-12 15:12:51 -07:00
Ann T Ropea
6bdf8f3efe hwmon: (drivetemp) Use drivetemp's true module name in Kconfig section
The addition of the support for reading the temperature of ATA drives as
per commit 5b46903d8b ("hwmon: Driver for disk and solid state drives
with temperature sensors") lists in the respective Kconfig section the
name of the module to be optionally built as "satatemp".

However, building the kernel modules with "CONFIG_SENSORS_DRIVETEMP=m",
does not generate a file named "satatemp.ko".

Instead, the rest of the original commit uses the term "drivetemp" and
a file named "drivetemp.ko" ends up in the kernel's modules directory.
This file has the right ingredients:

	$ strings /path/to/drivetemp.ko | grep ^description
	description=Hard drive temperature monitor

and modprobing it produces the expected result:

	# drivetemp is not loaded
	$ sensors -u drivetemp-scsi-4-0
	Specified sensor(s) not found!
	$ sudo modprobe drivetemp
	$ sensors -u drivetemp-scsi-4-0
	drivetemp-scsi-4-0
	Adapter: SCSI adapter
	temp1:
	  temp1_input: 35.000
	  temp1_max: 60.000
	  temp1_min: 0.000
	  temp1_crit: 70.000
	  temp1_lcrit: -40.000
	  temp1_lowest: 20.000
	  temp1_highest: 36.000

Fix Kconfig by referring to the true name of the module.

Fixes: 5b46903d8b ("hwmon: Driver for disk and solid state drives with temperature sensors")
Signed-off-by: Ann T Ropea <bedhanger@gmx.de>
Link: https://lore.kernel.org/r/20200406235521.185309-1-bedhanger@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-04-12 15:12:51 -07:00
Guenter Roeck
37d59d10a8 hwmon: (pmbus/isl68137) Fix up chip IDs
I2C chip IDs need to reflect chip names, not chip functionality.

Fixes: f621d61fd5 ("hwmon: (pmbus) add support for 2nd Gen Renesas digital multiphase")
Cc: Grant Peltier <grantpeltier93@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2020-04-12 15:12:51 -07:00
Pali Rohár
149ed3d404 change email address for Pali Rohár
For security reasons I stopped using gmail account and kernel address is
now up-to-date alias to my personal address.

People periodically send me emails to address which they found in source
code of drivers, so this change reflects state where people can contact
me.

[ Added .mailmap entry as per Joe Perches  - Linus ]
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Link: http://lkml.kernel.org/r/20200307104237.8199-1-pali@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-10 15:36:22 -07:00
Linus Torvalds
9b82f05f86 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
 "The main changes in this cycle were:

  Kernel side changes:

   - A couple of x86/cpu cleanups and changes were grandfathered in due
     to patch dependencies. These clean up the set of CPU model/family
     matching macros with a consistent namespace and C99 initializer
     style.

   - A bunch of updates to various low level PMU drivers:
       * AMD Family 19h L3 uncore PMU
       * Intel Tiger Lake uncore support
       * misc fixes to LBR TOS sampling

   - optprobe fixes

   - perf/cgroup: optimize cgroup event sched-in processing

   - misc cleanups and fixes

  Tooling side changes are to:

   - perf {annotate,expr,record,report,stat,test}

   - perl scripting

   - libapi, libperf and libtraceevent

   - vendor events on Intel and S390, ARM cs-etm

   - Intel PT updates

   - Documentation changes and updates to core facilities

   - misc cleanups, fixes and other enhancements"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (89 commits)
  cpufreq/intel_pstate: Fix wrong macro conversion
  x86/cpu: Cleanup the now unused CPU match macros
  hwrng: via_rng: Convert to new X86 CPU match macros
  crypto: Convert to new CPU match macros
  ASoC: Intel: Convert to new X86 CPU match macros
  powercap/intel_rapl: Convert to new X86 CPU match macros
  PCI: intel-mid: Convert to new X86 CPU match macros
  mmc: sdhci-acpi: Convert to new X86 CPU match macros
  intel_idle: Convert to new X86 CPU match macros
  extcon: axp288: Convert to new X86 CPU match macros
  thermal: Convert to new X86 CPU match macros
  hwmon: Convert to new X86 CPU match macros
  platform/x86: Convert to new CPU match macros
  EDAC: Convert to new X86 CPU match macros
  cpufreq: Convert to new X86 CPU match macros
  ACPI: Convert to new X86 CPU match macros
  x86/platform: Convert to new CPU match macros
  x86/kernel: Convert to new CPU match macros
  x86/kvm: Convert to new CPU match macros
  x86/perf/events: Convert to new CPU match macros
  ...
2020-03-30 16:40:08 -07:00
Ingo Molnar
629b3df7ec Merge branch 'x86/cpu' into perf/core, to resolve conflict
Conflicts:
	arch/x86/events/intel/uncore.c

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-03-25 15:20:44 +01:00
Thomas Gleixner
5cfc7ac7c1 hwmon: Convert to new X86 CPU match macros
The new macro set has a consistent namespace and uses C99 initializers
instead of the grufty C89 ones.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lkml.kernel.org/r/20200320131509.859324598@linutronix.de
2020-03-24 21:33:36 +01:00