[PATCH 6/6] thermal: Add Tegra SOCTHERM thermal management driver

Mikko Perttunen mperttunen at nvidia.com
Thu Jul 3 06:51:31 PDT 2014

On 01/07/14 21:26, Stephen Warren wrote:
> Ah, so there's some manufacturing calibration process that sets some
> fuse value, and the HW uses a combination of that fuse value, and some
> parameters of the manufacturing process as represented by the
> SENSOR_CONFIG2 register, to apply the calibration? I wonder why
> SENSOR_CONFIG2 is a register not a fuse in that case, but anyway...
> Perhaps some comments or kerneldoc in the definition of struct
> tegra_tsensor would be useful?

Yes, I'll add some comments.

> Why not read THERMCTL_INTR_STATUS inside the IRQ thread. IIRC, if the
> ISR wakes an IRQ thread, the interrupt remains disable until the thread
> has run its course, so there's no issue deferring the register read
> until the thread runs, at which point, the thread can simply loop over
> all the sensors.

If that's the case, then that's definitely a better way to do it.

More information about the linux-arm-kernel mailing list