media: set proper max seg size for devices on Exynos SoCs
All multimedia devices found on Exynos SoCs support only contiguous
buffers, so set DMA max segment size to DMA_BIT_MASK(32) to let memory
allocator to correctly create contiguous memory mappings.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index caa19b4..17bc94092 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -2843,6 +2843,7 @@
goto device_register_rollback;
}
+ vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));
jpeg->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
if (IS_ERR(jpeg->alloc_ctx)) {
v4l2_err(&jpeg->v4l2_dev, "Failed to init memory allocator\n");
@@ -2942,6 +2943,7 @@
video_unregister_device(jpeg->vfd_decoder);
video_unregister_device(jpeg->vfd_encoder);
vb2_dma_contig_cleanup_ctx(jpeg->alloc_ctx);
+ vb2_dma_contig_clear_max_seg_size(&pdev->dev);
v4l2_m2m_release(jpeg->m2m_dev);
v4l2_device_unregister(&jpeg->v4l2_dev);