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Use the new dmaengine_prep_config_single_safe() API to combine the configuration and descriptor preparation into a single call. Since dmaengine_prep_config_single_safe() performs the configuration and preparation atomically and the mutex can be removed. Tested-by: Niklas Cassel <cassel@kernel.org> Acked-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260521-dma_prep_config-v7-7-1f73f4899883@nxp.com Signed-off-by: Vinod Koul <vkoul@kernel.org>