Add a comment to explain why this driver doesn't call any of the DMA API dma_set_mask() functions.
Signed-off-by: Russell King rmk+kernel@arm.linux.org.uk --- drivers/usb/host/ohci-sa1111.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index 17b2a7d..aa9e127 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -185,6 +185,12 @@ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev) if (usb_disabled()) return -ENODEV;
+ /* + * We don't call dma_set_mask_and_coherent() here because the + * DMA mask has already been appropraitely setup by the core + * SA-1111 bus code (which includes bug workarounds.) + */ + hcd = usb_create_hcd(&ohci_sa1111_hc_driver, &dev->dev, "sa1111"); if (!hcd) return -ENOMEM;