intel_th: Skip subdevices if their MMIO is missing

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If a subdevice requires an MMIO region that wasn't in the resources passed
down from the glue layer, don't instantiate it, but don't error out. This
means that that particular subdevice doesn't exist for this instance of
Intel TH, which is a perfectly normal situation. This applies, for example,
to the "rtit" source device.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Alexander Shishkin 2019-05-03 11:44:37 +03:00 • committed by Greg Kroah-Hartman

parent db73a059de

commit 23f667494b

1 changed files with 9 additions and 4 deletions

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drivers/hwtracing/intel_th/core.c

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