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| author | Duc Dang <dhdang@apm.com> | 2015-10-09 12:30:11 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-17 08:34:22 +0200 |
| commit | 0ebbe398f68be0d9bbd41dcfb57319e697756b37 (patch) | |
| tree | 3a212cfa00f80aff88db6ef423b3a2a18cad0481 /drivers/usb/host/ehci-atmel.c | |
| parent | usb: xhci: Makefile: move xhci-pci and xhci-plat-hcd after xhci-hcd (diff) | |
| download | linux-0ebbe398f68be0d9bbd41dcfb57319e697756b37.tar.xz linux-0ebbe398f68be0d9bbd41dcfb57319e697756b37.zip | |
usb: make xhci platform driver use 64 bit or 32 bit DMA
The xhci platform driver needs to work on systems that
either only support 64-bit DMA or only support 32-bit DMA.
Attempt to set a coherent dma mask for 64-bit DMA, and
attempt again with 32-bit DMA if that fails.
[dhdang: regenerate the patch over v4.3-rc1 and address new comments]
Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>
Tested-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Duc Dang <dhdang@apm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-atmel.c')
0 files changed, 0 insertions, 0 deletions