coresight: etm4x: Refactor probing routine
commit e381d0e83781ab6ba247af8cbeb93b3573f3156e from git@git.assembla.com:cavium/WindRiver.linux.git CoreSight ETM with system register access may not have a memory mapped i/o access. Refactor the ETM specific probing into a common routine to allow reusing the code for such ETMs. Link: https://lore.kernel.org/r/20210110224850.1880240-24-suzuki.poulose@arm.com Cc: Mike Leach <mike.leach@linaro.org> Signed-off-by:Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by:
Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210201181351.1475223-26-mathieu.poirier@linaro.org Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Ruiqiang Hao <Ruiqiang.Hao@windriver.com>
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