diff options
| author | Michael Tretter <m.tretter@pengutronix.de> | 2023-10-13 13:00:27 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-12-07 08:56:14 +0100 |
| commit | ec9ef8dda2a24ce1c13904f0d46867c0aa6b4ee7 (patch) | |
| tree | e19e599e7cf593a2cfe4ec0cae2e5f8dfd24931c /drivers/media/platform | |
| parent | 25783e2a984eadd7718f4fcdf1d82ee7e088d52d (diff) | |
media: rockchip: rga: set dma mask to 32 bits
The RGA DMA descriptor list contains only 32-bit addresses. Set the
dma_mask to only allocate memory that is addressable by the descriptors.
This prevents errors when preparing vb2 buffers that were allocated by
the RGA.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'drivers/media/platform')
| -rw-r--r-- | drivers/media/platform/rockchip/rga/rga.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c index f18fccc7b204..ea566c11734a 100644 --- a/drivers/media/platform/rockchip/rga/rga.c +++ b/drivers/media/platform/rockchip/rga/rga.c @@ -98,6 +98,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) src_vq->drv_priv = ctx; src_vq->ops = &rga_qops; src_vq->mem_ops = &vb2_dma_sg_memops; + dst_vq->gfp_flags = __GFP_DMA32; src_vq->buf_struct_size = sizeof(struct rga_vb_buffer); src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; src_vq->lock = &ctx->rga->mutex; @@ -112,6 +113,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) dst_vq->drv_priv = ctx; dst_vq->ops = &rga_qops; dst_vq->mem_ops = &vb2_dma_sg_memops; + dst_vq->gfp_flags = __GFP_DMA32; dst_vq->buf_struct_size = sizeof(struct rga_vb_buffer); dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; dst_vq->lock = &ctx->rga->mutex; @@ -824,6 +826,12 @@ static int rga_probe(struct platform_device *pdev) goto err_put_clk; } + ret = dma_set_mask_and_coherent(rga->dev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(rga->dev, "32-bit DMA not supported"); + goto err_put_clk; + } + ret = v4l2_device_register(&pdev->dev, &rga->v4l2_dev); if (ret) goto err_put_clk; |