usb: dwc2: clip max_transfer_size to 65535

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Clip max_transfer_size to 65535 for host. dwc2_hc_setup_align_buf()
allocates coherent buffers with this size, and if it's too large we
can exhaust the coherent DMA pool.

Tested on Raspberry Pi and Altera SOCFPGA.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Paul Zimmerman 2014-09-16 13:47:26 -07:00 • committed by Greg Kroah-Hartman

parent d00b414280

commit e8f8c14d9d

1 changed files with 7 additions and 0 deletions

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7

drivers/usb/dwc2/core.c

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