This patch moves data allocated using kzalloc to managed data allocated
using devm_kzalloc and cleans now unnecessary kfrees in probe and remove
functions. Also, the unnecessary label out_free is removed.

The following Coccinelle semantic patch was used for making the change:

@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
  .probe = probefn,
  .remove = removefn,
};

@prb@
identifier platform.probefn, pdev;
expression e, e1, e2;
@@
probefn(struct platform_device *pdev, ...) {
  <+...
- e = kzalloc(e1, e2)
+ e = devm_kzalloc(&pdev->dev, e1, e2)
  ...
?-kfree(e);
  ...+>
}

@rem depends on prb@
identifier platform.removefn;
expression e;
@@
removefn(...) {
  <...
- kfree(e);
  ...>
}
Signed-off-by: NHimangi Saraogi <himangi774@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Nuvoton NCT6683D is an eSIO with hardware monitoring capabilities.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Avoid need for forward declarations by rearranging code.

No functional change.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Convert fan display function macros into functions to reduce
code size and improve code readability.

Code size reduction is about 200 bytes on x86_64.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Convert voltage display function macros into functions to reduce
code size and improve code readability.

Code size reduction is about 600 bytes on x86_64.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Convert temperature display function macros into functions to reduce
code size and improve code readability.

Code size reduction is about 2k on x86_64.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Normalize all stored temperature values to 16 bit to simplify
temperature calculations.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

TEMP_FROM_REG gets 12 bits of temperature data in the upper 12 bit
of a signed 16 bit parameter, with the integer part (including sign)
in the upper 8 bit and the remainder in bit 4..7. The lower 4 bit of
the 16 bit data is always 0. We can use that information to convert
the temperature directly into display data (1/1000th of degree C).

Note that the stored temperature data is not shifted right as the
comment claimed, so remove that misleading comment.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use devm_hwmon_device_register_with_groups API to attach attributes
to hwmon device, simplify code, and reduce code size.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Avoid forward declarations by rearranging code.
No functional change.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The FSF address changes over time, so drop it.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Use devm_hwmon_device_register_with_groups API to attach attributes
to hwmon device, simplify code, and reduce code size.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Function macros make the code larger and difficult ro read.
Drop them and reduce code size (on x86_64) by ~1800 bytes.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Forward declarations are unnecessary and easy to avoid, so rearrange
code and drop them.

No functional change.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The FSF address may chance over time, so drop it.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The overtemperature status bit, which is used to display critical alarm status,
matches the output of the OVERT signal 1:1. If that signal is active-low, the
bit will read 1 if there is no alarm. It is therefore necessary to reverse
the bit in this case.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Also fix links to datasheets for other supported sensors from
ST Microelectronics, and add links to several Atmel datasheets.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Convert function macros into functions to make the code
easier to read and reduce code size.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

EMC1412, EMC1413, and EMC1414 are fully compatible to EMC1402, EMC1403,
and EMC1404, and even report the same chip ID. Add to device ID table
to enable instantiation with correct chip names.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The hysteresis value applies to all limits, so add support for
tempX_min_hyst.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The hysteresis value applies to all limits, so add support for
tempX_max_hyst.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Writing the hysteresis limit returned -ERANGE if the written hysteresis
was too high or too low. Relax error check and adjust the hysteresis
value to its valid range.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

All chips in this chip series only support a single hysteresis value. Having
multiple writable hysteresis attributes is therefore confusing, since a single
write affects all hysteresis temperatures. Make all but one (temp1_crit_hyst)
read-only.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Alarm and fault status register on EMC1402, EMC1412, and EMC1422 is reported
in a different register than with other chips. Add support for it.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Convert to regmap to be able to use its register caching mechanism.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

With the driver now supporting several chip variants,
it is about time to document what is supported.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The hwmon subsystem has been around for a while. Time to document
its kernel API.
Acked-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Add support for emc1402/emc1412/emc1422 temperature monitoring chips.
This line of sensors only has 2 temperature channels (internal and external)
in comparison to the emc14x3 (3 channels) and emc14x4 (4 channels).
Signed-off-by: NJosef Gajdusek <atx@atx.name>
[Guenter Roeck: ordered i2c address list, updated description/headline]
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Signed-off-by: NLABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Signed-off-by: NLABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Somehow a couple of spaces got added to the first line. Remove them.
No code change.
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Acked-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>