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| author | Anson Huang <b20788@freescale.com> | 2014-08-06 15:12:09 +0800 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2014-08-09 10:29:30 -0400 |
| commit | 3c94f17e72a7bcf689756da100b6051e535c45f4 (patch) | |
| tree | 2cf71a742c68ab6e66b1858c9d1496ec7b258cb5 /Documentation | |
| parent | a020279ee611c31ac163c00b21b975e7ecbb2e9c (diff) | |
| download | linux-stable-3c94f17e72a7bcf689756da100b6051e535c45f4.tar.gz linux-stable-3c94f17e72a7bcf689756da100b6051e535c45f4.tar.bz2 linux-stable-3c94f17e72a7bcf689756da100b6051e535c45f4.zip | |
Thermal: imx: add i.mx6sx thermal support
i.MX6SX has some new features of thermal interrupt function,
there are LOW, HIGH and PANIC irq for thermal sensor, so add
platform data to separate different thermal version;
The reset value of LOW ALARM is 0 which means the highest
temp, so the LOW ALARM will be triggered once irq is enabled,
so we need to correct it before enabling thermal irq;
Enable PANIC ALARM as critical trip point, it will trigger
system reset via SRC module once PANIC IRQ is triggered, it
is pure hardware function, so use it instead of software
reset by cooling device.
Signed-off-by: Anson Huang <b20788@freescale.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/thermal/imx-thermal.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.txt b/Documentation/devicetree/bindings/thermal/imx-thermal.txt index 1f0f67234a91..3c67bd50aa10 100644 --- a/Documentation/devicetree/bindings/thermal/imx-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/imx-thermal.txt @@ -1,7 +1,10 @@ * Temperature Monitor (TEMPMON) on Freescale i.MX SoCs Required properties: -- compatible : "fsl,imx6q-thermal" +- compatible : "fsl,imx6q-tempmon" for i.MX6Q, "fsl,imx6sx-tempmon" for i.MX6SX. + i.MX6SX has two more IRQs than i.MX6Q, one is IRQ_LOW and the other is IRQ_PANIC, + when temperature is below than low threshold, IRQ_LOW will be triggered, when temperature + is higher than panic threshold, system will auto reboot by SRC module. - fsl,tempmon : phandle pointer to system controller that contains TEMPMON control registers, e.g. ANATOP on imx6q. - fsl,tempmon-data : phandle pointer to fuse controller that contains TEMPMON |