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Commit 5d878bdb authored by Tobias Jakobi's avatar Tobias Jakobi Committed by Inki Dae
Browse files

drm/exynos: plane: honor buffer offset for dma_addr 



Previously we were ignoring the buffer offsets that are
passed through the addfb2 ioctl. This didn't cause any
major issues, since for uni-planar formats (like XRGB8888)
userspace would most of the time just use offsets[0]=0.

However with NV12 offsets[1] is very likely non-zero.
So properly apply the offsets to our dma addresses.

Signed-off-by: default avatarTobias Jakobi <tjakobi@math.uni-bielefeld.de>
Acked-by: default avatarJoonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent d10ebb9f

drivers/gpu/drm/exynos/exynos_drm_plane.c

+1 −1
Original line number Diff line number Diff line
@@ -76,7 +76,7 @@ int exynos_check_plane(struct drm_plane *plane, struct drm_framebuffer *fb) 
			return -EFAULT;

		}



		exynos_plane->dma_addr[i] = buffer->dma_addr;

		exynos_plane->dma_addr[i] = buffer->dma_addr + fb->offsets[i];



		DRM_DEBUG_KMS("buffer: %d, dma_addr = 0x%lx\n",

				i, (unsigned long)exynos_plane->dma_addr[i]);