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authorTobias Jakobi <tjakobi@math.uni-bielefeld.de>2015-04-27 23:10:14 +0200
committerInki Dae <daeinki@gmail.com>2015-05-19 15:50:52 +0200
commit5d878bdb51bd7915ba3def8b531238c67624aa58 (patch)
tree5874ebee6ccc3800a229a562dccfdbb877d688bc /drivers/gpu
parentdrm/exynos: fb: use drm_format_num_planes to get buffer count (diff)
downloadlinux-5d878bdb51bd7915ba3def8b531238c67624aa58.tar.xz
linux-5d878bdb51bd7915ba3def8b531238c67624aa58.zip
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: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Acked-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_plane.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index 13ea3349363b..b1180fbe7546 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -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]);