intel_th: Add runtime power management handling

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Currently, an Intel TH (pci) device will be always active, because the
devices on the 'intel_th' bus don't implement runtime pm to track their
usage.

To address this, this patch adds runtime pm support to the 'intel_th'
bus and some additional bits for the hub. The 'output' type device is
in use while a capture is active; the 'source' type device (STH) relies
on its child stm class device for runtime pm tracking.

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

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This commit is contained in:

Alexander Shishkin 2016-06-22 13:48:21 +03:00

parent 8e0469a4f3

commit 142dfeb202

2 changed files with 60 additions and 10 deletions

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54

drivers/hwtracing/intel_th/core.c

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16

drivers/hwtracing/intel_th/gth.c

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