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

Jernej Skrabec
2019-01-28T20:56:41Z

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

Add a quirk for it.

Signed-off-by: Jernej Skrabec <jernej.skrabec@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