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>

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>
Acked-by: NDarrick J. Wong <darrick.wong@oracle.com>
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>

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

Function macros obfuscate code and increase code size, so drop them.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The FSF mailing address may change, so drop it.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Simplify code and attach hwmon attributes to hwmon device.
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.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Function macros make the code harder to read and increase code size,
so drop them.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Updating the hysteresis value when updating the critical temperature limit
was following the rule of 'least surprise'. However, it had the undesirable
side effect of changing the hysteresis for all other attributes, which
defeats the purpose of least surprise. In addition, it could result in
invalid hysteresis values if the resulting hysteresis was too large. In such
cases the resulting hysteresis ended up changed anyway, which again defeats
the purpose. So drop that code and document the new behavior.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

Forward declarations are easy to avoid and unnecessary.
Rearrange code to avoid it.

No functional change.
Acked-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>

The FSF mailing address changes over time, so drop it.

No functional change.
Reviewed-by: NJean Delvare <jdelvare@suse.de>
Signed-off-by: NGuenter Roeck <linux@roeck-us.net>