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| author | Russell King | 2013-06-27 12:10:40 +0200 |
|---|---|---|
| committer | Russell King | 2013-10-31 15:48:44 +0100 |
| commit | 4ffb4318b044d175709567402a65f8ebb19f5d3b (patch) | |
| tree | b7972104e18c19cefd03707adb18d884d720779b /drivers/usb/host/ohci-sa1111.c | |
| parent | DMA-API: video: clcd: add dma_set_mask_and_coherent() call (diff) | |
| download | kernel-qcow2-linux-4ffb4318b044d175709567402a65f8ebb19f5d3b.tar.gz kernel-qcow2-linux-4ffb4318b044d175709567402a65f8ebb19f5d3b.tar.xz kernel-qcow2-linux-4ffb4318b044d175709567402a65f8ebb19f5d3b.zip | |
DMA-API: usb: ohci-sa1111: add a note about DMA masks
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>
Diffstat (limited to 'drivers/usb/host/ohci-sa1111.c')
| -rw-r--r-- | 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 17b2a7dad77b..aa9e127bbe71 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; |