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* thermal: imx: implement thermal alarm interrupt handlingPhilipp Zabel2013-08-151-13/+127
| | | | | | | | | | Enable automatic measurements at 10 Hz and use the alarm interrupt to react more quickly to sudden temperature changes above the passive or critical temperature trip points. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
* thermal: imx: dynamic passive and SoC specific critical trip pointsPhilipp Zabel2013-08-151-10/+40
| | | | | | | | | | | Set passive and critical trip point values depending on the maximum die temperature stored in the OCOTP fuses. This allows higher trip points for industrial and automotive rated i.MX6 SoCs. Also allow to configure the passive trip point from userspace. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
* thermal: add imx thermal driver supportShawn Guo2013-08-131-0/+397
This is based on the initial imx thermal work done by Rob Lee <rob.lee@linaro.org> (Not sure if the email address is still valid). Since he is no longer interested in the work and I have rewritten a significant amount of the code, I just took the authorship over from him. It adds the imx thermal support using Temperature Monitor (TEMPMON) block found on some Freescale i.MX SoCs. The driver uses syscon regmap interface to access TEMPMON control registers and calibration data, and supports cpufreq as the cooling device. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>