Hi,
On Fri, Oct 13, 2017 at 05:59:01PM +0300, Laurent Pinchart wrote:
> 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: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
-- Sebastian
> ---
> drivers/gpu/drm/omapdrm/dss/dss.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/dss.c b/drivers/gpu/drm/omapdrm/dss/dss.c
> index d1755f12236b..6ce26a4b93b3 100644
> --- a/drivers/gpu/drm/omapdrm/dss/dss.c
> +++ b/drivers/gpu/drm/omapdrm/dss/dss.c
> @@ -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.
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
Attachment:
signature.asc
Description: PGP signature
_______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
