| Message ID | 20241104-rp1-cfe-fixes-seg-size-v2-1-2afd9f6f9fac@ideasonboard.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [v2] media: raspberrypi: cfe: Fix mapping of dmabuf buffers | expand |
diff --git a/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c b/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c index da9e1a1e4d0d..e808c80cd37c 100644 --- a/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c +++ b/drivers/media/platform/raspberrypi/rp1-cfe/cfe.c @@ -2341,6 +2341,10 @@ static int cfe_probe(struct platform_device *pdev) goto err_cfe_put; } + ret = vb2_dma_contig_set_max_seg_size(&pdev->dev, UINT_MAX); + if (ret) + goto err_cfe_put; + /* TODO: Enable clock only when running. */ cfe->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(cfe->clk))
When using buffers from DRM, DMA-API gives a warning about: "mapping sg segment longer than device claims to support [len=307200] [max=65536]" Add a call to vb2_dma_contig_set_max_seg_size() to tell the DMA-API about the supported segment size (which is UINT_MAX). Fixes: 6edb685abb2a ("media: raspberrypi: Add support for RP1-CFE") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> --- Changes in v2: - Drop the error print, as vb2_dma_contig_set_max_seg_size() already prints one. - Link to v1: https://lore.kernel.org/r/20241101-rp1-cfe-fixes-seg-size-v1-1-0aacf2da56e5@ideasonboard.com --- drivers/media/platform/raspberrypi/rp1-cfe/cfe.c | 4 ++++ 1 file changed, 4 insertions(+) --- base-commit: c7ccf3683ac9746b263b0502255f5ce47f64fe0a change-id: 20241101-rp1-cfe-fixes-seg-size-b70309da74a2 Best regards,