Rgistering a thermal zone uses devm_kzalloc(), which requires
a pointer to the parent device.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

While invalid name attributes are really not desirable and do mess up
libsensors, enforcing valid names has the detrimental effect of driving
users away from using the new hardware monitoring API, especially those
registering name attributes violating the ABI restrictions. Another
undesirable side effect is that this violation and the resulting error
may only be discovered some time after a conversion to the new API,
which in turn may trigger a revert of that conversion.

To solve the problem, relax validation and only issue a warning instead
of returning an error if a name attribute violating the ABI is provided.
This lets callers continue to provide invalid name attributes while
notifying them about it.

Many thanks are due to Dmitry Torokhov for the idea.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Clarify that the name attribute must report a valid name, and the rules
for valid names. Also clarify that the name parameter must be provided
for all supported API functions.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

It does not make sense to use one of the the new APIs when not
even providing a name attribute. Make it mandatory.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Add support for Texas Instruments TMP122/124 which are nearly identical to
their TMP121/123 except that they also support programmable temperature
thresholds.
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

We have a device reference, utilize it instead of pr_warn().
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The I2C core always reports a MODALIAS of the form i2c:<foo> even if the
device was registered via OF, this means that exporting the OF device ID
table device aliases in the module is not needed. But in order to change
how the core reports modaliases to user-space, it's better to export it.

Before this patch:

$ modinfo drivers/hwmon/ltc4151.ko | grep alias
alias:          i2c:ltc4151

After this patch:

$ modinfo drivers/hwmon/ltc4151.ko | grep alias
alias:          i2c:ltc4151
alias:          of:N*T*Clltc,ltc4151C*
alias:          of:N*T*Clltc,ltc4151
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Preserve chip operation mode if no mode is specified via devicetree. This
enables operation when chip configuration is done by BIOS/ROMMON.
Signed-off-by: NAlexander Koch <mail@alexanderkoch.net>
Acked-by: NMichael Hornung <mhornung.linux@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Add support for operation modes 1-3 of the ADC128D818 (see datasheet sec.
8.4.1). These differ in the number and type of the available input signals,
requiring the driver to selectively hide sysfs nodes according to the
operation mode configured via devicetree.
Signed-off-by: NAlexander Koch <mail@alexanderkoch.net>
Acked-by: NMichael Hornung <mhornung.linux@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Implement operation mode selection using the optional 'ti,mode' devicetree
property (see [1]). The ADC128D818 supports four operation modes differing
in the number and type of input readings (see datasheet, sec. 8.4.1), of
which mode 0 is the default.

We only add handling of the 'ti,mode' property here, the driver still
supports nothing else than the default mode 0.

[1] Documentation/devicetree/bindings/hwmon/adc128d818.txt
Signed-off-by: NAlexander Koch <mail@alexanderkoch.net>
Acked-by: NMichael Hornung <mhornung.linux@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Add bindings documentation for the ADC128D818 driver, featuring default I2C
properties along with the optional 'mode' property for chip operation mode
selection (see datasheet, sec. 8.4.1).
Signed-off-by: NAlexander Koch <mail@alexanderkoch.net>
Acked-by: NMichael Hornung <mhornung.linux@gmail.com>
Acked-by: NRob Herring <robh@kernel.org>
[groeck: Fixed whitespace error]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

tmp401 separately read/wrote high and low bytes of temperature values while
the hardware supports reading/writing those values in one operation. Driver
has been modified to use word operations where possible.

Tested with a tmp432 sensor on a mips64 platform.
Signed-off-by: NJeroen De Wachter <jeroen.de_wachter.ext@nokia.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Writes into limit attributes can overflow due to multplications and
additions with unbound input values. Writing into fan limit attributes
can result in a crash with a division by zero if very large values are
written and the fan divider is larger than 1.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Writes into limit attributes can overflow due to additions and
multiplications with unchecked parameters.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Writes into voltage limit, temperature limit, temperature hysteresis,
and temperature zone attributes can overflow due to unclamped parameters
to multiplications, additions, and subtractions.

Cc: Juerg Haefliger <juergh@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Expose the per-chip unique identifier so it can be used to identify the
sensor producing the measurements.
Signed-off-by: NPeter A. Bigot <pab@pabigot.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RW for read/write attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RW for read/write attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RW for read/write attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read-only attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read-only attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read-only attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RW for read/write attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RW for read/write attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read-only attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RW for read/write attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read-only attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read-only attributes. This simplifies the source
code, improves readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use DEVICE_ATTR_RO for read only attributes and DEVICE_ATTR_RW for
read/write attributes. This simplifies the source code, improves
readbility, and reduces the chance of inconsistencies.

The conversion was done automatically using coccinelle. It was validated
by compiling both the old and the new source code and comparing its text,
data, and bss size.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
[groeck: Updated description]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>