Hi Sascha,

The thermal code uses int, long and unsigned long for temperatures
in different places.

Using an unsigned type limits the thermal framework to positive
temperatures without need. Also several drivers currently will report
temperatures near UINT_MAX for temperatures below 0?C. This will
probably immediately shut the machine down due to overtemperature if
started below 0?C.

'long' is 64bit on several architectures. This is not needed since
INT_MAX ?mC is above the melting point of all known materials.

Consistently use a plain 'int' for temperatures throughout the
thermal code and the drivers. This only changes the places in the
drivers where the temperature is passed around as pointer, when
drivers internally use another type this is not changed.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Sascha, thanks for this cleanup work. 

Reviewed-by: Lukasz Majewski <redacted>

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group