[linux-sunxi] [PATCH 2/6] media: cedrus: Add a quirk for not setting DMA offset

[Jernej Skrabec]

H6 VPU doesn't work if DMA offset is set.

Add a quirk for it.

Signed-off-by: Jernej Skrabec <jernej.skra...@siol.net>
---
 drivers/staging/media/sunxi/cedrus/cedrus.h    | 3 +++
 drivers/staging/media/sunxi/cedrus/cedrus_hw.c | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.h 
b/drivers/staging/media/sunxi/cedrus/cedrus.h
index 4aedd24a9848..c57c04b41d2e 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus.h
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.h
@@ -28,6 +28,8 @@
 
 #define CEDRUS_CAPABILITY_UNTILED      BIT(0)
 
+#define CEDRUS_QUIRK_NO_DMA_OFFSET     BIT(0)
+
 enum cedrus_codec {
        CEDRUS_CODEC_MPEG2,
 
@@ -91,6 +93,7 @@ struct cedrus_dec_ops {
 
 struct cedrus_variant {
        unsigned int    capabilities;
+       unsigned int    quirks;
 };
 
 struct cedrus_dev {
diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c 
b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
index 0acf219a8c91..fbfff7c1c771 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
@@ -177,7 +177,8 @@ int cedrus_hw_probe(struct cedrus_dev *dev)
         */
 
 #ifdef PHYS_PFN_OFFSET
-       dev->dev->dma_pfn_offset = PHYS_PFN_OFFSET;
+       if (!(variant->quirks & CEDRUS_QUIRK_NO_DMA_OFFSET))
+               dev->dev->dma_pfn_offset = PHYS_PFN_OFFSET;
 #endif
 
        ret = of_reserved_mem_device_init(dev->dev);
-- 
2.20.1

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