cpufreq: qcom-hw: Don't do lmh things without a throttle interrupt

Offlining cpu6 and cpu7 and then onlining cpu6 hangs on
sc7180-trogdor-lazor because the throttle interrupt doesn't exist.
Similarly, things go sideways when suspend/resume runs. That's because
the qcom_cpufreq_hw_cpu_online() and qcom_cpufreq_hw_lmh_exit()
functions are calling genirq APIs with an interrupt value of '-6', i.e.
-ENXIO, and that isn't good.

Check the value of the throttle interrupt like we already do in other
functions in this file and bail out early from lmh code to fix the hang.

Reported-by: Rob Clark <[email protected]>
Cc: Vladimir Zapolskiy <[email protected]>
Cc: Bjorn Andersson <[email protected]>
Cc: Dmitry Baryshkov <[email protected]>
Fixes: a1eb080a0447 ("cpufreq: qcom-hw: provide online/offline operations")
Signed-off-by: Stephen Boyd <[email protected]>
Reviewed-by: Vladimir Zapolskiy <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>

0 files changed, 0 insertions, 0 deletions