Allow devices to have dma operations beyond 4K, and avoid warnings such
as:
DMA-API: dwc3 a600000.usb: mapping sg segment longer than device claims to support [len=86016] [max=65536]
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Reported-by: Zubin Mithra <zsm@xxxxxxxxxxxx>
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
Found while running
yavta -f YUYV -s 1280x720 -c /dev/video0
with:
CONFIG_DMA_API_DEBUG=y
---
Changes in v2:
- Add stable tag
- Link to v1: https://lore.kernel.org/r/20231026-dwc3-v1-1-643c74771599@xxxxxxxxxxxx
---
drivers/usb/dwc3/core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 343d2570189f..65f73dd8ef47 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1918,6 +1918,8 @@ static int dwc3_probe(struct platform_device *pdev)
pm_runtime_put(dev);
+ dma_set_max_seg_size(dev, UINT_MAX);
+
return 0;
err_exit_debugfs:
---
base-commit: 611da07b89fdd53f140d7b33013f255bf0ed8f34
change-id: 20231026-dwc3-fac74fcb3b2a
Best regards,
--
Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
