From: Thierry Reding treding@nvidia.com
VIC, just like all other host1x clients, has the same addressing range as its parent host1x device. Inherit the DMA mask to reflect that.
Signed-off-by: Thierry Reding treding@nvidia.com --- drivers/gpu/drm/tegra/vic.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c index 748798f2cdc8..d60e479cde92 100644 --- a/drivers/gpu/drm/tegra/vic.c +++ b/drivers/gpu/drm/tegra/vic.c @@ -385,6 +385,13 @@ static int vic_probe(struct platform_device *pdev) struct vic *vic; int err;
+ /* inherit DMA mask from host1x parent */ + err = dma_coerce_mask_and_coherent(dev, *dev->parent->dma_mask); + if (err < 0) { + dev_err(&pdev->dev, "failed to set DMA mask: %d\n", err); + return err; + } + vic = devm_kzalloc(dev, sizeof(*vic), GFP_KERNEL); if (!vic) return -ENOMEM;