[PATCH v5 6/9] coresight: add support for CPU debug module

On Thu, Mar 30, 2017 at 10:00:30AM +0100, Suzuki K Poulose wrote:

[...]

Leo,

Also, it would be good to restore the PRCR register back to the original state
after we read the registers (if we changed them). I am exploring ways to make
use of this feature on demand (e.g, tie it to sysrq-t or sysrq-l) and not just
at panic time. So it would be good to have the state restored to not affect the
normal functioning even after dumping the registers.

Got it. Will take care for this.

Thanks,
Leo Yan

PS: I have a small hack to hook this into a sysrq-x at runtime, but on a second thought
it is better not to consume the key and rather tie it to something which already exist,
as mentioned above.

Thanks
Suzuki