[PATCH 4/7] media: sun4i: Remove the MBUS quirks
From: Maxime Ripard <hidden>
Date: 2020-11-06 15:17:23
Also in:
dri-devel, linux-media, lkml
Subsystem:
allwinner a10 csi driver, media input infrastructure (v4l/dvb), the rest · Maintainers:
Maxime Ripard, Mauro Carvalho Chehab, Linus Torvalds
Now that the MBUS quirks are applied by our global notifier, we can remove them from our CSI driver for the A10. Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Maxime Ripard <redacted> --- .../platform/sunxi/sun4i-csi/sun4i_csi.c | 27 ------------------- 1 file changed, 27 deletions(-)
diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
index eb15c8c725ca..ec46cff80fdb 100644
--- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c
+++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_csi.c@@ -167,33 +167,6 @@ static int sun4i_csi_probe(struct platform_device *pdev) if (!csi->traits) return -EINVAL; - /* - * On Allwinner SoCs, some high memory bandwidth devices do DMA - * directly over the memory bus (called MBUS), instead of the - * system bus. The memory bus has a different addressing scheme - * without the DRAM starting offset. - * - * In some cases this can be described by an interconnect in - * the device tree. In other cases where the hardware is not - * fully understood and the interconnect is left out of the - * device tree, fall back to a default offset. - */ - if (of_find_property(csi->dev->of_node, "interconnects", NULL)) { - ret = of_dma_configure(csi->dev, csi->dev->of_node, true); - if (ret) - return ret; - } else { - /* - * XXX(hch): this has no business in a driver and needs to move - * to the device tree. - */ -#ifdef PHYS_PFN_OFFSET - ret = dma_direct_set_offset(csi->dev, PHYS_OFFSET, 0, SZ_4G); - if (ret) - return ret; -#endif - } - csi->mdev.dev = csi->dev; strscpy(csi->mdev.model, "Allwinner Video Capture Device", sizeof(csi->mdev.model));
--
2.28.0
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