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serial: ucc_uart: access __be32 field using be32_to_cpu 

The buf member of struct qe_bd is a __be32, so to make this work on
little-endian hosts, use be32_to_cpu when reading it.

Reviewed-by: Timur Tabi <timur@kernel.org>
Acked-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
This commit is contained in:
Rasmus Villemoes 2019-11-28 15:55:39 +01:00 committed by Li Yang
parent b0816f88b9
commit 09a39ec9de
1 changed files with 3 additions and 3 deletions
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6
drivers/tty/serial/ucc_uart.c
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@ -343,7 +343,7 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
/* Pick next descriptor and fill from buffer */
bdp = qe_port->tx_cur;
p = qe2cpu_addr(bdp->buf, qe_port);
p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
*p++ = port->x_char;
qe_iowrite16be(1, &bdp->length);
@ -371,7 +371,7 @@ static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
while (!(qe_ioread16be(&bdp->status) & BD_SC_READY) &&
(xmit->tail != xmit->head)) {
count = 0;
p = qe2cpu_addr(bdp->buf, qe_port);
p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
while (count < qe_port->tx_fifosize) {
*p++ = xmit->buf[xmit->tail];
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
@ -491,7 +491,7 @@ static void qe_uart_int_rx(struct uart_qe_port *qe_port)
}
/* get pointer */
cp = qe2cpu_addr(bdp->buf, qe_port);
cp = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
/* loop through the buffer */
while (i-- > 0) {