msm thermal: enhancements

1) Smart polling based on temp (poll slower when cooler, faster when
warmer).

2) Added low frequency index so we don't throttle too low and kill
performance. When warming normally (throttle temp is reached) it will
step down by the freq_step until back under control. The lowest
frequency step possible is the specified by the low freq index.

3) Added throttle max (hardcoded at 80C). If it reaches the
throttle max, it will immediately throttle down to the min_freq_index
instead of stepping down 2 frequency steps at a time like when it hits
the throttle temp.

4) Added tuneables

/sys/module/msm_thermal/parameters/throttle_temp
/sys/module/msm_thermal/parameters/min_freq_index
/sys/module/msm_thermal/parameters/thermal_debug
msm8960_tsens: enable all thermal devices

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>

Conflicts:
	drivers/thermal/msm8960_tsens.c
thermal: tsens8974: Fix delay in the TSENS handler

Add a workqueue to process the status register reads for
the sensors to verify if sensors thresholds are crossed
and send uevent to clients. This change is to avoid any delay
within the TSENS interrupt handler.

Change-Id: I3f3b713a84a6e74fb94e27b8a69be3b1dd0a9dac
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
thermal: pm8xxx-tm: Configure temperature alarm for always-on operation

Change the register initialization for the PMIC temperature alarm
module so that it is always on.  This ensures that die
temperature monitoring is active even if CXO is disabled (i.e.
when sleep_b is low).  This is necessary since CXO can be
disabled while the system is still heavily loaded.  Also, using
the alway-on instead of PWM-enabled configuration ensures that
the die temperature can be measured by the PMIC ADC without
reconfiguring the temperature alarm module first.

Change-Id: I4a76c959c81f222fbeca08b6c98b1e4b23653b4e
Signed-off-by: David Collins <collinsd@codeaurora.org>
driver: thermal: +10 over default settings
Stuxnet:Hybrid
Signed-off-by: Jean Francis Dominique S. Mabalot <jmabalot@google.com>