intel_th: gth: Handle host mode correctly

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When detecting host debugger mode either though a module option or via
the scratchpad register, do not export any configuration or capture
related attributes to userspace and refuse attempts by the output drivers
to configure output ports.

This way, GTH can still act as a hub and ensure that the other components
that rely on its presence continue to function properly, namely the
source devices.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>

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Alexander Shishkin 2016-09-19 17:27:45 +03:00

parent c49a75910c

commit d4f5f545da

1 changed files with 24 additions and 2 deletions

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drivers/hwtracing/intel_th/gth.c

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