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This driver manages CoreSight ETM (Embedded Trace Macrocell) that supports processor tracing. Currently supported version are ARM ETMv3.x and PTM1.x. Signed-off-by: Pratik Patel <pratikp@codeaurora.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> coresight-etm3x: adding missing error checking Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>