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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2024-05-28 23:21:34 +0300
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2024-05-28 23:21:34 +0300
commitf73a058be5d70dd81a43f16b2bbff4b1576a7af8 (patch)
treeb7959c01cf7a5d95c7c4d5b61929ff9123370322 /drivers/tty/serial/cpm_uart.c
parent6cb05d89fd62a76a9b74bd16211fb0930e89fea8 (diff)
parent3e049b6b8f32f25c6967f4cffd8eac6e1e5316f6 (diff)
downloadlinux-f73a058be5d70dd81a43f16b2bbff4b1576a7af8.tar.xz
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
v6.10-rc1 is released, forward from v6.9 Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'drivers/tty/serial/cpm_uart.c')
-rw-r--r--drivers/tty/serial/cpm_uart.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/tty/serial/cpm_uart.c b/drivers/tty/serial/cpm_uart.c
index df56c6c5afd0..a927478f581d 100644
--- a/drivers/tty/serial/cpm_uart.c
+++ b/drivers/tty/serial/cpm_uart.c
@@ -648,7 +648,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
int count;
struct uart_cpm_port *pinfo =
container_of(port, struct uart_cpm_port, port);
- struct circ_buf *xmit = &port->state->xmit;
+ struct tty_port *tport = &port->state->port;
/* Handle xon/xoff */
if (port->x_char) {
@@ -673,7 +673,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
return 1;
}
- if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
+ if (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port)) {
cpm_uart_stop_tx(port);
return 0;
}
@@ -681,16 +681,10 @@ static int cpm_uart_tx_pump(struct uart_port *port)
/* Pick next descriptor and fill from buffer */
bdp = pinfo->tx_cur;
- while (!(in_be16(&bdp->cbd_sc) & BD_SC_READY) && !uart_circ_empty(xmit)) {
- count = 0;
+ while (!(in_be16(&bdp->cbd_sc) & BD_SC_READY) &&
+ !kfifo_is_empty(&tport->xmit_fifo)) {
p = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
- while (count < pinfo->tx_fifosize) {
- *p++ = xmit->buf[xmit->tail];
- uart_xmit_advance(port, 1);
- count++;
- if (uart_circ_empty(xmit))
- break;
- }
+ count = uart_fifo_out(port, p, pinfo->tx_fifosize);
out_be16(&bdp->cbd_datlen, count);
setbits16(&bdp->cbd_sc, BD_SC_READY);
/* Get next BD. */
@@ -701,10 +695,10 @@ static int cpm_uart_tx_pump(struct uart_port *port)
}
pinfo->tx_cur = bdp;
- if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+ if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS)
uart_write_wakeup(port);
- if (uart_circ_empty(xmit)) {
+ if (kfifo_is_empty(&tport->xmit_fifo)) {
cpm_uart_stop_tx(port);
return 0;
}