diff options
| author | Andreas Herrmann <andreas.herrmann@caviumnetworks.com> | 2015-01-12 18:05:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-25 15:48:28 +0300 |
| commit | c99e76c55f68eaa0c307ba25803c4e59c2fca1ca (patch) | |
| tree | 15b4b0b3210fcb9235b28df11a02808b784558bd /drivers/usb/host/ehci-platform.c | |
| parent | a5790e9e834bb48cb681620ec680203edb536242 (diff) | |
| download | linux-c99e76c55f68eaa0c307ba25803c4e59c2fca1ca.tar.xz | |
USB: host: Introduce flag to enable use of 64-bit dma_mask for ehci-platform
ehci-octeon driver used a 64-bit dma_mask. With removal of ehci-octeon
and usage of ehci-platform ehci dma_mask is now limited to 32 bits
(coerced in ehci_platform_probe).
Provide a flag in ehci platform data to allow use of 64 bits for
dma_mask.
Cc: David Daney <david.daney@cavium.com>
Cc: Alex Smith <alex.smith@imgtec.com>
Signed-off-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-platform.c')
| -rw-r--r-- | drivers/usb/host/ehci-platform.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 28aae64a8bee..63f2622926c4 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -155,7 +155,8 @@ static int ehci_platform_probe(struct platform_device *dev) if (!pdata) pdata = &ehci_platform_defaults; - err = dma_coerce_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32)); + err = dma_coerce_mask_and_coherent(&dev->dev, + pdata->dma_mask_64 ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32)); if (err) return err; |