diff options
author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-08-22 21:01:13 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-05 19:52:08 -0400 |
commit | a651684c100d47b34acb815d56c0c258565296dc (patch) | |
tree | 5cad8beb6faafd0eec74fc77590397521b8585f6 /drivers/usb/renesas_usbhs | |
parent | 3735ba8db8e6ea22ad3ff524328926d8d780a884 (diff) |
usb: renesas_usbhs: fixup DMA transport data alignment
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>
Diffstat (limited to 'drivers/usb/renesas_usbhs')
-rw-r--r-- | drivers/usb/renesas_usbhs/fifo.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index ecd173032fd4..143c4e9e1be4 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c | |||
@@ -818,7 +818,7 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done) | |||
818 | usbhs_pipe_is_dcp(pipe)) | 818 | usbhs_pipe_is_dcp(pipe)) |
819 | goto usbhsf_pio_prepare_push; | 819 | goto usbhsf_pio_prepare_push; |
820 | 820 | ||
821 | if (len % 4) /* 32bit alignment */ | 821 | if (len & 0x7) /* 8byte alignment */ |
822 | goto usbhsf_pio_prepare_push; | 822 | goto usbhsf_pio_prepare_push; |
823 | 823 | ||
824 | if ((uintptr_t)(pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */ | 824 | if ((uintptr_t)(pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */ |
@@ -905,7 +905,7 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done) | |||
905 | /* use PIO if packet is less than pio_dma_border */ | 905 | /* use PIO if packet is less than pio_dma_border */ |
906 | len = usbhsf_fifo_rcv_len(priv, fifo); | 906 | len = usbhsf_fifo_rcv_len(priv, fifo); |
907 | len = min(pkt->length - pkt->actual, len); | 907 | len = min(pkt->length - pkt->actual, len); |
908 | if (len % 4) /* 32bit alignment */ | 908 | if (len & 0x7) /* 8byte alignment */ |
909 | goto usbhsf_pio_prepare_pop_unselect; | 909 | goto usbhsf_pio_prepare_pop_unselect; |
910 | 910 | ||
911 | if (len < usbhs_get_dparam(priv, pio_dma_border)) | 911 | if (len < usbhs_get_dparam(priv, pio_dma_border)) |