sw:drv: use dma_device in drvdata for portability

The spec carrier can easy take the dma_device without knowing the DMA details implemented in its driver. Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

sw:drv: use dma_device in drvdata for portability
The spec carrier can easy take the dma_device without knowing the DMA details implemented in its driver. Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
c562f7d2 · Federico Vaga · 001c8923 · c562f7d2
Commit c562f7d2 authored May 04, 2020 by Federico Vaga
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spec-gn412x-dma.c software/kernel/spec-gn412x-dma.c +3 -2

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--- a/software/kernel/spec-gn412x-dma.c
+++ b/software/kernel/spec-gn412x-dma.c
@@ -838,7 +838,7 @@ static int gn412x_dma_probe(struct platform_device *pdev)
 		goto err_reg;
 	gn412x_dma_dbg_init(gn412x_dma);
-	platform_set_drvdata(pdev, gn412x_dma);
+	platform_set_drvdata(pdev, &gn412x_dma->dma);
 	return 0;
 err_reg:
@@ -863,7 +863,8 @@ err_res_mem:
 static int gn412x_dma_remove(struct platform_device *pdev)
 {
-	struct gn412x_dma_device *gn412x_dma = platform_get_drvdata(pdev);
+	struct dma_device *dma = platform_get_drvdata(pdev);
+	struct gn412x_dma_device *gn412x_dma = to_gn412x_dma_device(dma);
 	gn412x_dma_dbg_exit(gn412x_dma);