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>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/usb/ehci_pdriver.h b/include/linux/usb/ehci_pdriver.h
index 6287b398abd9..db0431b39a63 100644
--- a/include/linux/usb/ehci_pdriver.h
+++ b/include/linux/usb/ehci_pdriver.h
@@ -48,6 +48,7 @@ struct usb_ehci_pdata {
         unsigned        big_endian_mmio:1;
         unsigned        no_io_watchdog:1;
         unsigned        reset_on_resume:1;
+        unsigned        dma_mask_64:1;
 
         /* Turn on all power and clocks */
         int (*power_on)(struct platform_device *pdev);