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ASoC: Intel: catpt: Drop manipulation of the obsolete direction flag

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Setting up direction for struct dma_slave_config is obsolete, see the
description of the struct.  The transfer performed by the catpt-driver
is also always DMA_MEM_TO_MEM not DMA_MEM_TO_DEV with preparation step
being dmaengine_prep_dma_memcpy().

DW's ->device_prep_dma_memcpy() always fixes the direction to
DMA_MEM_TO_MEM even if its user fails to do so, see
drivers/dma/dw/core.c.   While the change impacts number of checks done
by ->device_config() - p/m buswidth checks are skipped - fields being
fixed up in those i.e.: .dst_addr_width and .src_addr_width, do not take
part in DMA_MEM_TO_MEM transfer.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20260603085827.1964796-7-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2026-06-03 10:58:26 +02:00 committed by Mark Brown
parent 89f7afd3e2
commit f95ac7d0c7
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1 changed files with 0 additions and 1 deletions
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sound/soc/intel/catpt/dsp.c
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@ -44,7 +44,6 @@ struct dma_chan *catpt_dma_request_config_chan(struct catpt_dev *cdev)
}
memset(&config, 0, sizeof(config));
config.direction = DMA_MEM_TO_DEV;
config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
config.src_maxburst = 16;