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usb: renesas_usbhs: fixup DMA transport data alignment
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renesas_usbhs dma can transport 8byte alignment data, not 4byte.
This patch fixup it.

Reported-by: Sugnan Prabhu S <sugnan.prabhu@renesasmobile.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Kuninori Morimoto authored and Greg Kroah-Hartman committed Sep 5, 2012
1 parent 3735ba8 commit a651684
Showing 1 changed file with 2 additions and 2 deletions.
4 changes: 2 additions & 2 deletions drivers/usb/renesas_usbhs/fifo.c
Original file line number Diff line number Diff line change
Expand Up @@ -818,7 +818,7 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done)
usbhs_pipe_is_dcp(pipe))
goto usbhsf_pio_prepare_push;

if (len % 4) /* 32bit alignment */
if (len & 0x7) /* 8byte alignment */
goto usbhsf_pio_prepare_push;

if ((uintptr_t)(pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */
Expand Down Expand Up @@ -905,7 +905,7 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done)
/* use PIO if packet is less than pio_dma_border */
len = usbhsf_fifo_rcv_len(priv, fifo);
len = min(pkt->length - pkt->actual, len);
if (len % 4) /* 32bit alignment */
if (len & 0x7) /* 8byte alignment */
goto usbhsf_pio_prepare_pop_unselect;

if (len < usbhs_get_dparam(priv, pio_dma_border))
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