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>

diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index ecd1730..143c4e9 100644 (file)
--- 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)
            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 */
@@ -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))