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usb: renesas_usbhs: care buff alignment when dma handler
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1 changed files with 6 additions and 0 deletions
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@ -642,6 +642,9 @@ static int usbhsf_dma_prepare_push(struct usbhs_pkt *pkt, int *is_done)
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if (len % 4) /* 32bit alignment */
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goto usbhsf_pio_prepare_push;
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if (((u32)pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */
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goto usbhsf_pio_prepare_push;
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/* get enable DMA fifo */
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fifo = usbhsf_get_dma_fifo(priv, pkt);
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if (!fifo)
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@ -716,6 +719,9 @@ static int usbhsf_dma_try_pop(struct usbhs_pkt *pkt, int *is_done)
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if (!fifo)
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goto usbhsf_pio_prepare_pop;
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if (((u32)pkt->buf + pkt->actual) & 0x7) /* 8byte alignment */
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goto usbhsf_pio_prepare_pop;
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ret = usbhsf_fifo_select(pipe, fifo, 0);
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if (ret < 0)
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goto usbhsf_pio_prepare_pop;
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