mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-20 14:16:02 +00:00
dmaengine: sf-pdma: Support of_dma_controller_register()
Update sf-pdma driver to adopt generic DMA device tree bindings. It calls of_dma_controller_register() with of_dma_xlate_by_chan_id to get the generic DMA device tree helper support and the DMA clients can look up the sf-pdma controller using standard APIs. Signed-off-by: Shravan Chippa <shravan.chippa@microchip.com> Link: https://lore.kernel.org/r/20231208103856.3732998-2-shravan.chippa@microchip.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
parent
4a8ececbb5
commit
8e578b47e6
1 changed files with 17 additions and 0 deletions
|
@ -20,6 +20,7 @@
|
|||
#include <linux/mod_devicetable.h>
|
||||
#include <linux/dma-mapping.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_dma.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
#include "sf-pdma.h"
|
||||
|
@ -563,7 +564,20 @@ static int sf_pdma_probe(struct platform_device *pdev)
|
|||
return ret;
|
||||
}
|
||||
|
||||
ret = of_dma_controller_register(pdev->dev.of_node,
|
||||
of_dma_xlate_by_chan_id, pdma);
|
||||
if (ret < 0) {
|
||||
dev_err(&pdev->dev,
|
||||
"Can't register SiFive Platform OF_DMA. (%d)\n", ret);
|
||||
goto err_unregister;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_unregister:
|
||||
dma_async_device_unregister(&pdma->dma_dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void sf_pdma_remove(struct platform_device *pdev)
|
||||
|
@ -583,6 +597,9 @@ static void sf_pdma_remove(struct platform_device *pdev)
|
|||
tasklet_kill(&ch->err_tasklet);
|
||||
}
|
||||
|
||||
if (pdev->dev.of_node)
|
||||
of_dma_controller_free(pdev->dev.of_node);
|
||||
|
||||
dma_async_device_unregister(&pdma->dma_dev);
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue