xiaomi-sm8450/android_kernel_xiaomi_sm8450
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media: set proper max seg size for devices on Exynos SoCs

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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>
This commit is contained in:
Marek Szyprowski
2016-05-24 09:16:07 +02:00
committed by Sylwester Nawrocki
父節點 3f03396918
當前提交 712b617e5e
共有 8 個文件被更改，包括 18 次插入 和 0 次删除
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4
drivers/media/platform/s5p-mfc/s5p_mfc.c
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@@ -1175,11 +1175,13 @@ static int s5p_mfc_probe(struct platform_device *pdev)
}
}
vb2_dma_contig_set_max_seg_size(dev->mem_dev_l, DMA_BIT_MASK(32));
dev->alloc_ctx[0] = vb2_dma_contig_init_ctx(dev->mem_dev_l);
if (IS_ERR(dev->alloc_ctx[0])) {
ret = PTR_ERR(dev->alloc_ctx[0]);
goto err_res;
}
vb2_dma_contig_set_max_seg_size(dev->mem_dev_r, DMA_BIT_MASK(32));
dev->alloc_ctx[1] = vb2_dma_contig_init_ctx(dev->mem_dev_r);
if (IS_ERR(dev->alloc_ctx[1])) {
ret = PTR_ERR(dev->alloc_ctx[1]);
@@ -1307,6 +1309,8 @@ static int s5p_mfc_remove(struct platform_device *pdev)
s5p_mfc_release_firmware(dev);
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[0]);
vb2_dma_contig_cleanup_ctx(dev->alloc_ctx[1]);
vb2_dma_contig_clear_max_seg_size(dev->mem_dev_l);
vb2_dma_contig_clear_max_seg_size(dev->mem_dev_r);
if (pdev->dev.of_node) {
put_device(dev->mem_dev_l);
put_device(dev->mem_dev_r);