dmaengine: shdma: remove legacy slave_id parsing

The slave device is picked through either devicetree or a filter
function, and any remaining out-of-tree drivers would have warned
about this usage since 2015.

Stop interpreting the field finally so it can be removed from
the interface.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20211122222203.4103644-6-arnd@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Arnd Bergmann 2021-11-22 23:21:57 +01:00 committed by Vinod Koul
parent f59f6aaead
commit 37228af82e

View file

@ -786,14 +786,6 @@ static int shdma_config(struct dma_chan *chan,
if (!config)
return -EINVAL;
/*
* overriding the slave_id through dma_slave_config is deprecated,
* but possibly some out-of-tree drivers still do it.
*/
if (WARN_ON_ONCE(config->slave_id &&
config->slave_id != schan->real_slave_id))
schan->real_slave_id = config->slave_id;
/*
* We could lock this, but you shouldn't be configuring the
* channel, while using it...