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This adds SPDX GPL-2.0 header to the Trace Hub driver and removes the
GPLv2 boilerplate text.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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The Low Power Path (LPP) output port type, looks mostly like PTI to
the software, with a few additional bits in the control register.
This extends the PTI driver to support LPP ports as well.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
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Parallel Trace Interface (PTI) unit is a trace output device that sends
data over a PTI port.
The driver provides interfaces to configure bus width, bus clock divider
and mode. Tracing is enabled via output device's "active" attribute.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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