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intel_th: Don't touch switch routing in host mode 

When the Trace Hub is operating in Host Debugger mode, it is up to the
debugger to configure master routing even for the software sources. Do
not do this in the driver in this case.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
This commit is contained in:
Alexander Shishkin 2018-03-01 10:17:25 +02:00
parent 9ad5770871
commit c2d2c7de97
1 changed files with 4 additions and 0 deletions
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4
drivers/hwtracing/intel_th/core.c
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@ -930,6 +930,10 @@ int intel_th_set_output(struct intel_th_device *thdev,
struct intel_th_device *hub = to_intel_th_hub(thdev);
struct intel_th_driver *hubdrv = to_intel_th_driver(hub->dev.driver);
/* In host mode, this is up to the external debugger, do nothing. */
if (hub->host_mode)
return 0;
if (!hubdrv->set_output)
return -ENOTSUPP;