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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2018-03-01 09:17:25 +0100 |
|---|---|---|
| committer | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2018-03-28 17:47:20 +0200 |
| commit | c2d2c7de972d7a08533bde622c36ff6feb112907 (patch) | |
| tree | 0d5254091622b79a8cf1a99dc19d19ba2113ff36 /drivers/hwtracing | |
| parent | intel_th: Use correct method of finding hub (diff) | |
| download | linux-c2d2c7de972d7a08533bde622c36ff6feb112907.tar.xz linux-c2d2c7de972d7a08533bde622c36ff6feb112907.zip | |
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>
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/intel_th/core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index 8e4f5fd8a43e..d295b221e0bc 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -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; |