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-rw-r--r--drivers/tty/serial/8250/8250_lpss.c15
-rw-r--r--drivers/tty/serial/8250/8250_omap.c25
-rw-r--r--drivers/tty/serial/8250/8250_port.c14
-rw-r--r--drivers/tty/serial/8250/Kconfig2
-rw-r--r--drivers/tty/serial/fsl_lpuart.c4
-rw-r--r--drivers/tty/serial/imx.c1
-rw-r--r--drivers/tty/serial/jsm/jsm_driver.c3
-rw-r--r--drivers/tty/serial/serial-tegra.c5
-rw-r--r--drivers/tty/serial/xilinx_uartps.c2
9 files changed, 37 insertions, 34 deletions
diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
index 98dbc796353f..448388ec03e2 100644
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -246,8 +246,13 @@ static int lpss8250_dma_setup(struct lpss8250 *lpss, struct uart_8250_port *port
struct dw_dma_slave *rx_param, *tx_param;
struct device *dev = port->port.dev;
- if (!lpss->dma_param.dma_dev)
+ if (!lpss->dma_param.dma_dev) {
+ dma = port->dma;
+ if (dma)
+ goto out_configuration_only;
+
return 0;
+ }
rx_param = devm_kzalloc(dev, sizeof(*rx_param), GFP_KERNEL);
if (!rx_param)
@@ -258,16 +263,18 @@ static int lpss8250_dma_setup(struct lpss8250 *lpss, struct uart_8250_port *port
return -ENOMEM;
*rx_param = lpss->dma_param;
- dma->rxconf.src_maxburst = lpss->dma_maxburst;
-
*tx_param = lpss->dma_param;
- dma->txconf.dst_maxburst = lpss->dma_maxburst;
dma->fn = lpss8250_dma_filter;
dma->rx_param = rx_param;
dma->tx_param = tx_param;
port->dma = dma;
+
+out_configuration_only:
+ dma->rxconf.src_maxburst = lpss->dma_maxburst;
+ dma->txconf.dst_maxburst = lpss->dma_maxburst;
+
return 0;
}
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index c1166b45c288..b9352d3bb2ed 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -162,27 +162,10 @@ static void omap8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
static void omap_8250_mdr1_errataset(struct uart_8250_port *up,
struct omap8250_priv *priv)
{
- u8 timeout = 255;
-
serial_out(up, UART_OMAP_MDR1, priv->mdr1);
udelay(2);
serial_out(up, UART_FCR, up->fcr | UART_FCR_CLEAR_XMIT |
UART_FCR_CLEAR_RCVR);
- /*
- * Wait for FIFO to empty: when empty, RX_FIFO_E bit is 0 and
- * TX_FIFO_E bit is 1.
- */
- while (UART_LSR_THRE != (serial_in(up, UART_LSR) &
- (UART_LSR_THRE | UART_LSR_DR))) {
- timeout--;
- if (!timeout) {
- /* Should *never* happen. we warn and carry on */
- dev_crit(up->port.dev, "Errata i202: timedout %x\n",
- serial_in(up, UART_LSR));
- break;
- }
- udelay(1);
- }
}
static void omap_8250_get_divisor(struct uart_port *port, unsigned int baud,
@@ -261,6 +244,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up)
{
struct omap8250_priv *priv = up->port.private_data;
struct uart_8250_dma *dma = up->dma;
+ u8 mcr = serial8250_in_MCR(up);
if (dma && dma->tx_running) {
/*
@@ -277,7 +261,7 @@ static void omap8250_restore_regs(struct uart_8250_port *up)
serial_out(up, UART_EFR, UART_EFR_ECB);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
- serial8250_out_MCR(up, UART_MCR_TCRTLR);
+ serial8250_out_MCR(up, mcr | UART_MCR_TCRTLR);
serial_out(up, UART_FCR, up->fcr);
omap8250_update_scr(up, priv);
@@ -293,7 +277,8 @@ static void omap8250_restore_regs(struct uart_8250_port *up)
serial_out(up, UART_LCR, 0);
/* drop TCR + TLR access, we setup XON/XOFF later */
- serial8250_out_MCR(up, up->mcr);
+ serial8250_out_MCR(up, mcr);
+
serial_out(up, UART_IER, up->ier);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
@@ -602,7 +587,6 @@ static int omap_8250_startup(struct uart_port *port)
pm_runtime_get_sync(port->dev);
- up->mcr = 0;
serial_out(up, UART_FCR, UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
serial_out(up, UART_LCR, UART_LCR_WLEN8);
@@ -1279,6 +1263,7 @@ static int omap8250_remove(struct platform_device *pdev)
pm_runtime_dont_use_autosuspend(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
+ flush_work(&priv->qos_work);
pm_runtime_disable(&pdev->dev);
serial8250_unregister_port(priv->line);
pm_qos_remove_request(&priv->pm_qos_request);
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index f11d1202566e..ce266e10a21e 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1865,10 +1865,13 @@ EXPORT_SYMBOL_GPL(serial8250_modem_status);
static bool handle_rx_dma(struct uart_8250_port *up, unsigned int iir)
{
switch (iir & 0x3f) {
- case UART_IIR_RX_TIMEOUT:
- serial8250_rx_dma_flush(up);
+ case UART_IIR_RDI:
+ if (!up->dma->rx_running)
+ break;
/* fall-through */
case UART_IIR_RLSI:
+ case UART_IIR_RX_TIMEOUT:
+ serial8250_rx_dma_flush(up);
return true;
}
return up->dma->rx_dma(up);
@@ -3269,8 +3272,13 @@ static void serial8250_console_restore(struct uart_8250_port *up)
unsigned int baud, quot, frac = 0;
termios.c_cflag = port->cons->cflag;
- if (port->state->port.tty && termios.c_cflag == 0)
+ termios.c_ispeed = port->cons->ispeed;
+ termios.c_ospeed = port->cons->ospeed;
+ if (port->state->port.tty && termios.c_cflag == 0) {
termios.c_cflag = port->state->port.tty->termios.c_cflag;
+ termios.c_ispeed = port->state->port.tty->termios.c_ispeed;
+ termios.c_ospeed = port->state->port.tty->termios.c_ospeed;
+ }
baud = serial8250_get_baud_rate(port, &termios, NULL);
quot = serial8250_get_divisor(port, baud, &frac);
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index f005eaf8bc57..a9ddd76d4170 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -106,7 +106,7 @@ config SERIAL_8250_CONSOLE
config SERIAL_8250_GSC
tristate
- depends on SERIAL_8250 && GSC
+ depends on SERIAL_8250 && PARISC
default SERIAL_8250
config SERIAL_8250_DMA
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index b757fd1bdbfa..069d02354c82 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1102,9 +1102,9 @@ static int lpuart_config_rs485(struct uart_port *port,
* Note: UART is assumed to be active high.
*/
if (rs485->flags & SER_RS485_RTS_ON_SEND)
- modem &= ~UARTMODEM_TXRTSPOL;
- else if (rs485->flags & SER_RS485_RTS_AFTER_SEND)
modem |= UARTMODEM_TXRTSPOL;
+ else if (rs485->flags & SER_RS485_RTS_AFTER_SEND)
+ modem &= ~UARTMODEM_TXRTSPOL;
}
/* Store the new configuration */
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index aeda1fe71eeb..819f340a8a7a 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2510,6 +2510,7 @@ static const struct dev_pm_ops imx_uart_pm_ops = {
.suspend_noirq = imx_uart_suspend_noirq,
.resume_noirq = imx_uart_resume_noirq,
.freeze_noirq = imx_uart_suspend_noirq,
+ .thaw_noirq = imx_uart_resume_noirq,
.restore_noirq = imx_uart_resume_noirq,
.suspend = imx_uart_suspend,
.resume = imx_uart_resume,
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 592e51d8944e..07e9be9865c7 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -212,7 +212,8 @@ static int jsm_probe_one(struct pci_dev *pdev, const struct pci_device_id *ent)
break;
default:
- return -ENXIO;
+ rc = -ENXIO;
+ goto out_kfree_brd;
}
rc = request_irq(brd->irq, brd->bd_ops->intr, IRQF_SHARED, "JSM", brd);
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index af2a29cfbbe9..ee480a1480e8 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -398,7 +398,7 @@ static void tegra_uart_tx_dma_complete(void *args)
count = tup->tx_bytes_requested - state.residue;
async_tx_ack(tup->tx_dma_desc);
spin_lock_irqsave(&tup->uport.lock, flags);
- xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
+ uart_xmit_advance(&tup->uport, count);
tup->tx_in_progress = 0;
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(&tup->uport);
@@ -482,7 +482,6 @@ static unsigned int tegra_uart_tx_empty(struct uart_port *u)
static void tegra_uart_stop_tx(struct uart_port *u)
{
struct tegra_uart_port *tup = to_tegra_uport(u);
- struct circ_buf *xmit = &tup->uport.state->xmit;
struct dma_tx_state state;
unsigned int count;
@@ -493,7 +492,7 @@ static void tegra_uart_stop_tx(struct uart_port *u)
dmaengine_tx_status(tup->tx_dma_chan, tup->tx_cookie, &state);
count = tup->tx_bytes_requested - state.residue;
async_tx_ack(tup->tx_dma_desc);
- xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);
+ uart_xmit_advance(&tup->uport, count);
tup->tx_in_progress = 0;
}
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index c22bd40fc6f0..ded9f16d08eb 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -365,6 +365,8 @@ static irqreturn_t cdns_uart_isr(int irq, void *dev_id)
isrstatus &= ~CDNS_UART_IXR_TXEMPTY;
}
+ isrstatus &= port->read_status_mask;
+ isrstatus &= ~port->ignore_status_mask;
/*
* Skip RX processing if RX is disabled as RXEMPTY will never be set
* as read bytes will not be removed from the FIFO.
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-03 03:45:04 +0000