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0f9138e757
This patch adds debugfs support to override the Master and Slave data modes. The settings only take effect prior to a new stream being prepared/enabled, or on resume. The test mode can be set to verify data integrity and detect bus clashes, but can only be used to test capture paths. In this case the input generated by a Slave source port is replaced by a fixed or cyclical patterns. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20200920193207.31241-3-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>