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Commit a921c1a8 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Tomi Valkeinen
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drm: omapdrm: dss: Set the DMA coherent mask 



When merging the omapdrm and omapdss drivers the omapdrm virtual
platform device will disappear, and the omapdss platform device will be
used for DMA memory allocation. To prepare for that, set the DMA
coherent mask for the device.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: default avatarSebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 2cd3e683

drivers/gpu/drm/omapdrm/dss/dss.c

+7 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#define DSS_SUBSYS_NAME "DSS"



#include <linux/debugfs.h>

#include <linux/dma-mapping.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/io.h>
@@ -1441,6 +1442,12 @@ static int dss_probe(struct platform_device *pdev) 


	dss.pdev = pdev;



	r = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));

	if (r) {

		dev_err(&pdev->dev, "Failed to set the DMA mask\n");

		return r;

	}



	/*

	 * The various OMAP3-based SoCs can't be told apart using the compatible

	 * string, use SoC device matching.