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dmaengine: sprd: stop referencing config->slave_id

It appears that the code that reads the slave_id from the channel config
was copied incorrectly from other drivers. Nothing ever sets this field
on platforms that use this driver, so remove the reference.

Reviewed-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211122222203.4103644-8-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

authored by

Arnd Bergmann and committed by
Vinod Koul 722d6d2b 134c37fa

-3
-3
drivers/dma/sprd-dma.c
··· 795 795 return dst_datawidth; 796 796 } 797 797 798 - if (slave_cfg->slave_id) 799 - schan->dev_id = slave_cfg->slave_id; 800 - 801 798 hw->cfg = SPRD_DMA_DONOT_WAIT_BDONE << SPRD_DMA_WAIT_BDONE_OFFSET; 802 799 803 800 /*