Merge 3.12-rc3 into tty-next
We want the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/hvc/hvc_dcc.c b/drivers/tty/hvc/hvc_dcc.c
index 44fbeba..3502a7b 100644
--- a/drivers/tty/hvc/hvc_dcc.c
+++ b/drivers/tty/hvc/hvc_dcc.c
@@ -86,6 +86,21 @@
return i;
}
+static bool hvc_dcc_check(void)
+{
+ unsigned long time = jiffies + (HZ / 10);
+
+ /* Write a test character to check if it is handled */
+ __dcc_putchar('\n');
+
+ while (time_is_after_jiffies(time)) {
+ if (!(__dcc_getstatus() & DCC_STATUS_TX))
+ return true;
+ }
+
+ return false;
+}
+
static const struct hv_ops hvc_dcc_get_put_ops = {
.get_chars = hvc_dcc_get_chars,
.put_chars = hvc_dcc_put_chars,
@@ -93,6 +108,9 @@
static int __init hvc_dcc_console_init(void)
{
+ if (!hvc_dcc_check())
+ return -ENODEV;
+
hvc_instantiate(0, 0, &hvc_dcc_get_put_ops);
return 0;
}
@@ -100,6 +118,9 @@
static int __init hvc_dcc_init(void)
{
+ if (!hvc_dcc_check())
+ return -ENODEV;
+
hvc_alloc(0, 0, &hvc_dcc_get_put_ops, 128);
return 0;
}
diff --git a/drivers/tty/hvc/hvc_vio.c b/drivers/tty/hvc/hvc_vio.c
index c791b18..b594abf 100644
--- a/drivers/tty/hvc/hvc_vio.c
+++ b/drivers/tty/hvc/hvc_vio.c
@@ -48,6 +48,7 @@
#include <asm/prom.h>
#include <asm/hvsi.h>
#include <asm/udbg.h>
+#include <asm/machdep.h>
#include "hvc_console.h"
@@ -457,7 +458,9 @@
if (hvterm_priv0.proto == HV_PROTOCOL_HVSI)
goto out;
#endif
- add_preferred_console("hvc", 0, NULL);
+ /* Check whether the user has requested a different console. */
+ if (!strstr(cmd_line, "console="))
+ add_preferred_console("hvc", 0, NULL);
hvc_instantiate(0, 0, ops);
out:
of_node_put(stdout_node);
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 01bf5eb..09505ff 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1752,20 +1752,14 @@
static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
{
struct n_tty_data *ldata = tty->disc_data;
- int canon_change = 1;
- if (old)
- canon_change = (old->c_lflag ^ tty->termios.c_lflag) & ICANON;
- if (canon_change) {
+ if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) {
bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
ldata->line_start = ldata->canon_head = ldata->read_tail;
ldata->erasing = 0;
ldata->lnext = 0;
}
- if (canon_change && !L_ICANON(tty) && read_cnt(ldata))
- wake_up_interruptible(&tty->read_wait);
-
ldata->icanon = (L_ICANON(tty) != 0);
if (I_ISTRIP(tty) || I_IUCLC(tty) || I_IGNCR(tty) ||
@@ -1820,9 +1814,8 @@
* Fix tty hang when I_IXON(tty) is cleared, but the tty
* been stopped by STOP_CHAR(tty) before it.
*/
- if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped) {
+ if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped)
start_tty(tty);
- }
/* The termios change make the tty ready for I/O */
wake_up_interruptible(&tty->write_wait);
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 570df9d..e33d38c 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2322,7 +2322,7 @@
if (up->capabilities & UART_CAP_FIFO && port->fifosize > 1) {
fcr = uart_config[port->type].fcr;
- if (baud < 2400 || fifo_bug) {
+ if ((baud < 2400 && !up->dma) || fifo_bug) {
fcr &= ~UART_FCR_TRIGGER_MASK;
fcr |= UART_FCR_TRIGGER_1;
}
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index daf710f..d04a037 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -56,11 +56,12 @@
struct dw8250_data {
- int last_lcr;
- int last_mcr;
- int line;
- struct clk *clk;
- u8 usr_reg;
+ u8 usr_reg;
+ int last_lcr;
+ int last_mcr;
+ int line;
+ struct clk *clk;
+ struct uart_8250_dma dma;
};
static inline int dw8250_modify_msr(struct uart_port *p, int offset, int value)
@@ -153,6 +154,14 @@
pm_runtime_put_sync_suspend(port->dev);
}
+static bool dw8250_dma_filter(struct dma_chan *chan, void *param)
+{
+ struct dw8250_data *data = param;
+
+ return chan->chan_id == data->dma.tx_chan_id ||
+ chan->chan_id == data->dma.rx_chan_id;
+}
+
static void dw8250_setup_port(struct uart_8250_port *up)
{
struct uart_port *p = &up->port;
@@ -241,7 +250,8 @@
}
#ifdef CONFIG_ACPI
-static int dw8250_probe_acpi(struct uart_8250_port *up)
+static int dw8250_probe_acpi(struct uart_8250_port *up,
+ struct dw8250_data *data)
{
const struct acpi_device_id *id;
struct uart_port *p = &up->port;
@@ -260,9 +270,7 @@
if (!p->uartclk)
p->uartclk = (unsigned int)id->driver_data;
- up->dma = devm_kzalloc(p->dev, sizeof(*up->dma), GFP_KERNEL);
- if (!up->dma)
- return -ENOMEM;
+ up->dma = &data->dma;
up->dma->rxconf.src_maxburst = p->fifosize / 4;
up->dma->txconf.dst_maxburst = p->fifosize / 4;
@@ -270,7 +278,8 @@
return 0;
}
#else
-static inline int dw8250_probe_acpi(struct uart_8250_port *up)
+static inline int dw8250_probe_acpi(struct uart_8250_port *up,
+ struct dw8250_data *data)
{
return -ENODEV;
}
@@ -314,6 +323,12 @@
uart.port.uartclk = clk_get_rate(data->clk);
}
+ data->dma.rx_chan_id = -1;
+ data->dma.tx_chan_id = -1;
+ data->dma.rx_param = data;
+ data->dma.tx_param = data;
+ data->dma.fn = dw8250_dma_filter;
+
uart.port.iotype = UPIO_MEM;
uart.port.serial_in = dw8250_serial_in;
uart.port.serial_out = dw8250_serial_out;
@@ -324,7 +339,7 @@
if (err)
return err;
} else if (ACPI_HANDLE(&pdev->dev)) {
- err = dw8250_probe_acpi(&uart);
+ err = dw8250_probe_acpi(&uart, data);
if (err)
return err;
} else {
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index c810da7..d917bbb 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1324,6 +1324,120 @@
return ret;
}
+#define PCI_DEVICE_ID_INTEL_BYT_UART1 0x0f0a
+#define PCI_DEVICE_ID_INTEL_BYT_UART2 0x0f0c
+
+#define BYT_PRV_CLK 0x800
+#define BYT_PRV_CLK_EN (1 << 0)
+#define BYT_PRV_CLK_M_VAL_SHIFT 1
+#define BYT_PRV_CLK_N_VAL_SHIFT 16
+#define BYT_PRV_CLK_UPDATE (1 << 31)
+
+#define BYT_GENERAL_REG 0x808
+#define BYT_GENERAL_DIS_RTS_N_OVERRIDE (1 << 3)
+
+#define BYT_TX_OVF_INT 0x820
+#define BYT_TX_OVF_INT_MASK (1 << 1)
+
+static void
+byt_set_termios(struct uart_port *p, struct ktermios *termios,
+ struct ktermios *old)
+{
+ unsigned int baud = tty_termios_baud_rate(termios);
+ unsigned int m = 6912;
+ unsigned int n = 15625;
+ u32 reg;
+
+ /* For baud rates 1M, 2M, 3M and 4M the dividers must be adjusted. */
+ if (baud == 1000000 || baud == 2000000 || baud == 4000000) {
+ m = 64;
+ n = 100;
+
+ p->uartclk = 64000000;
+ } else if (baud == 3000000) {
+ m = 48;
+ n = 100;
+
+ p->uartclk = 48000000;
+ } else {
+ p->uartclk = 44236800;
+ }
+
+ /* Reset the clock */
+ reg = (m << BYT_PRV_CLK_M_VAL_SHIFT) | (n << BYT_PRV_CLK_N_VAL_SHIFT);
+ writel(reg, p->membase + BYT_PRV_CLK);
+ reg |= BYT_PRV_CLK_EN | BYT_PRV_CLK_UPDATE;
+ writel(reg, p->membase + BYT_PRV_CLK);
+
+ /*
+ * If auto-handshake mechanism is not enabled,
+ * disable rts_n override
+ */
+ reg = readl(p->membase + BYT_GENERAL_REG);
+ reg &= ~BYT_GENERAL_DIS_RTS_N_OVERRIDE;
+ if (termios->c_cflag & CRTSCTS)
+ reg |= BYT_GENERAL_DIS_RTS_N_OVERRIDE;
+ writel(reg, p->membase + BYT_GENERAL_REG);
+
+ serial8250_do_set_termios(p, termios, old);
+}
+
+static bool byt_dma_filter(struct dma_chan *chan, void *param)
+{
+ return chan->chan_id == *(int *)param;
+}
+
+static int
+byt_serial_setup(struct serial_private *priv,
+ const struct pciserial_board *board,
+ struct uart_8250_port *port, int idx)
+{
+ struct uart_8250_dma *dma;
+ int ret;
+
+ dma = devm_kzalloc(port->port.dev, sizeof(*dma), GFP_KERNEL);
+ if (!dma)
+ return -ENOMEM;
+
+ switch (priv->dev->device) {
+ case PCI_DEVICE_ID_INTEL_BYT_UART1:
+ dma->rx_chan_id = 3;
+ dma->tx_chan_id = 2;
+ break;
+ case PCI_DEVICE_ID_INTEL_BYT_UART2:
+ dma->rx_chan_id = 5;
+ dma->tx_chan_id = 4;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ dma->rxconf.slave_id = dma->rx_chan_id;
+ dma->rxconf.src_maxburst = 16;
+
+ dma->txconf.slave_id = dma->tx_chan_id;
+ dma->txconf.dst_maxburst = 16;
+
+ dma->fn = byt_dma_filter;
+ dma->rx_param = &dma->rx_chan_id;
+ dma->tx_param = &dma->tx_chan_id;
+
+ ret = pci_default_setup(priv, board, port, idx);
+ port->port.iotype = UPIO_MEM;
+ port->port.type = PORT_16550A;
+ port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+ port->port.set_termios = byt_set_termios;
+ port->port.fifosize = 64;
+ port->tx_loadsz = 64;
+ port->dma = dma;
+ port->capabilities = UART_CAP_FIFO | UART_CAP_AFE;
+
+ /* Disable Tx counter interrupts */
+ writel(BYT_TX_OVF_INT_MASK, port->port.membase + BYT_TX_OVF_INT);
+
+ return ret;
+}
+
static int
pci_omegapci_setup(struct serial_private *priv,
const struct pciserial_board *board,
@@ -1662,6 +1776,20 @@
.subdevice = PCI_ANY_ID,
.setup = kt_serial_setup,
},
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BYT_UART1,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .setup = byt_serial_setup,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = PCI_DEVICE_ID_INTEL_BYT_UART2,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .setup = byt_serial_setup,
+ },
/*
* ITE
*/
@@ -2449,6 +2577,7 @@
pbn_ADDIDATA_PCIe_4_3906250,
pbn_ADDIDATA_PCIe_8_3906250,
pbn_ce4100_1_115200,
+ pbn_byt,
pbn_omegapci,
pbn_NETMOS9900_2s_115200,
pbn_brcm_trumanage,
@@ -3185,6 +3314,13 @@
.base_baud = 921600,
.reg_shift = 2,
},
+ [pbn_byt] = {
+ .flags = FL_BASE0,
+ .num_ports = 1,
+ .base_baud = 2764800,
+ .uart_offset = 0x80,
+ .reg_shift = 2,
+ },
[pbn_omegapci] = {
.flags = FL_BASE0,
.num_ports = 8,
@@ -3520,8 +3656,6 @@
{
struct serial_private *priv = pci_get_drvdata(dev);
- pci_set_drvdata(dev, NULL);
-
pciserial_remove_ports(priv);
pci_disable_device(dev);
@@ -4848,6 +4982,15 @@
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CE4100_UART,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
pbn_ce4100_1_115200 },
+ /* Intel BayTrail */
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_UART1,
+ PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+ pbn_byt },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_UART2,
+ PCI_ANY_ID, PCI_ANY_ID,
+ PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+ pbn_byt },
/*
* Cronyx Omega PCI
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index febd45c..701ca60 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1512,6 +1512,7 @@
config SERIAL_ST_ASC
tristate "ST ASC serial port support"
select SERIAL_CORE
+ depends on ARM || COMPILE_TEST
help
This driver is for the on-chip Asychronous Serial Controller on
STMicroelectronics STi SoCs.
diff --git a/drivers/tty/serial/arc_uart.c b/drivers/tty/serial/arc_uart.c
index 569872f..c9f5c9d 100644
--- a/drivers/tty/serial/arc_uart.c
+++ b/drivers/tty/serial/arc_uart.c
@@ -533,7 +533,7 @@
unsigned long *plat_data;
struct arc_uart_port *uart = &arc_uart_ports[dev_id];
- plat_data = (unsigned long *)dev_get_platdata(&pdev->dev);
+ plat_data = dev_get_platdata(&pdev->dev);
if (!plat_data)
return -ENODEV;
diff --git a/drivers/tty/serial/bfin_sport_uart.c b/drivers/tty/serial/bfin_sport_uart.c
index 87636cc..4f22970 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -766,9 +766,8 @@
return -ENOMEM;
}
- ret = peripheral_request_list(
- (unsigned short *)dev_get_platdata(&pdev->dev),
- DRV_NAME);
+ ret = peripheral_request_list(dev_get_platdata(&pdev->dev),
+ DRV_NAME);
if (ret) {
dev_err(&pdev->dev,
"Fail to request SPORT peripherals\n");
@@ -844,8 +843,7 @@
out_error_unmap:
iounmap(sport->port.membase);
out_error_free_peripherals:
- peripheral_free_list(
- (unsigned short *)dev_get_platdata(&pdev->dev));
+ peripheral_free_list(dev_get_platdata(&pdev->dev));
out_error_free_mem:
kfree(sport);
bfin_sport_uart_ports[pdev->id] = NULL;
@@ -864,8 +862,7 @@
if (sport) {
uart_remove_one_port(&sport_uart_reg, &sport->port);
iounmap(sport->port.membase);
- peripheral_free_list(
- (unsigned short *)dev_get_platdata(&pdev->dev));
+ peripheral_free_list(dev_get_platdata(&pdev->dev));
kfree(sport);
bfin_sport_uart_ports[pdev->id] = NULL;
}
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 3c75e8e..74749a6 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -1240,7 +1240,7 @@
*/
#endif
ret = peripheral_request_list(
- (unsigned short *)dev_get_platdata(&pdev->dev),
+ dev_get_platdata(&pdev->dev),
DRIVER_NAME);
if (ret) {
dev_err(&pdev->dev,
@@ -1358,8 +1358,7 @@
out_error_unmap:
iounmap(uart->port.membase);
out_error_free_peripherals:
- peripheral_free_list(
- (unsigned short *)dev_get_platdata(&pdev->dev));
+ peripheral_free_list(dev_get_platdata(&pdev->dev));
out_error_free_mem:
kfree(uart);
bfin_serial_ports[pdev->id] = NULL;
@@ -1377,8 +1376,7 @@
if (uart) {
uart_remove_one_port(&bfin_serial_reg, &uart->port);
iounmap(uart->port.membase);
- peripheral_free_list(
- (unsigned short *)dev_get_platdata(&pdev->dev));
+ peripheral_free_list(dev_get_platdata(&pdev->dev));
kfree(uart);
bfin_serial_ports[pdev->id] = NULL;
}
@@ -1432,8 +1430,8 @@
return -ENOENT;
}
- ret = peripheral_request_list(
- (unsigned short *)dev_get_platdata(&pdev->dev), DRIVER_NAME);
+ ret = peripheral_request_list(dev_get_platdata(&pdev->dev),
+ DRIVER_NAME);
if (ret) {
dev_err(&pdev->dev,
"fail to request bfin serial peripherals\n");
@@ -1463,8 +1461,7 @@
return 0;
out_error_free_peripherals:
- peripheral_free_list(
- (unsigned short *)dev_get_platdata(&pdev->dev));
+ peripheral_free_list(dev_get_platdata(&pdev->dev));
return ret;
}
diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index 7e4e408..8d0b994 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -459,7 +459,6 @@
ret = uart_register_driver(&s->uart);
if (ret) {
dev_err(&pdev->dev, "Registering UART driver failed\n");
- devm_clk_put(&pdev->dev, s->uart_clk);
return ret;
}
@@ -487,7 +486,6 @@
for (i = 0; i < UART_CLPS711X_NR; i++)
uart_remove_one_port(&s->uart, &s->port[i]);
- devm_clk_put(&pdev->dev, s->uart_clk);
uart_unregister_driver(&s->uart);
return 0;
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index af286e6..5903909 100644
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -1008,7 +1008,7 @@
return -ENODEV;
}
- pl_data = (struct ifx_modem_platform_data *)dev_get_platdata(&spi->dev);
+ pl_data = dev_get_platdata(&spi->dev);
if (!pl_data) {
dev_err(&spi->dev, "missing platform data!");
return -ENODEV;
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index a0ebbc9..c07d9bb 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1539,7 +1539,7 @@
ret = -EINVAL;
if (sport->port.uartclk / 16 != ser->baud_base)
ret = -EINVAL;
- if ((void *)sport->port.mapbase != ser->iomem_base)
+ if (sport->port.mapbase != (unsigned long)ser->iomem_base)
ret = -EINVAL;
if (sport->port.iobase != ser->port)
ret = -EINVAL;
@@ -1913,7 +1913,8 @@
sport->devdata = of_id->data;
if (of_device_is_stdout_path(np))
- add_preferred_console(imx_reg.cons->name, sport->port.line, 0);
+ add_preferred_console(imx_reg.cons->name, sport->port.line,
+ NULL);
return 0;
}
diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index d3db042..503dcc7 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -1451,7 +1451,6 @@
uart_remove_one_port(&serial_hsu_reg, &up->port);
}
- pci_set_drvdata(pdev, NULL);
free_irq(pdev->irq, priv);
pci_disable_device(pdev);
}
@@ -1504,4 +1503,4 @@
module_exit(hsu_pci_exit);
MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:medfield-hsu");
+MODULE_DEVICE_TABLE(pci, pci_ids);
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 5be1df3..e05a3b1 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1766,7 +1766,7 @@
static int
mpc52xx_uart_of_suspend(struct platform_device *op, pm_message_t state)
{
- struct uart_port *port = (struct uart_port *) platform_get_drvdata(op);
+ struct uart_port *port = platform_get_drvdata(op);
if (port)
uart_suspend_port(&mpc52xx_uart_driver, port);
@@ -1777,7 +1777,7 @@
static int
mpc52xx_uart_of_resume(struct platform_device *op)
{
- struct uart_port *port = (struct uart_port *) platform_get_drvdata(op);
+ struct uart_port *port = platform_get_drvdata(op);
if (port)
uart_resume_port(&mpc52xx_uart_driver, port);
diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index 8d70267..e30a3ca 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -2030,7 +2030,7 @@
{
struct mpsc_pdata *pdata;
- pdata = (struct mpsc_pdata *)dev_get_platdata(&pd->dev);
+ pdata = dev_get_platdata(&pd->dev);
pi->port.uartclk = pdata->brg_clk_freq;
pi->port.iotype = UPIO_MEM;
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 816d1a2..7b005206 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -247,7 +247,7 @@
if(baudAbsDiff16 < 0)
baudAbsDiff16 = -baudAbsDiff16;
- return (baudAbsDiff13 > baudAbsDiff16);
+ return (baudAbsDiff13 >= baudAbsDiff16);
}
/*
@@ -258,13 +258,13 @@
static unsigned int
serial_omap_get_divisor(struct uart_port *port, unsigned int baud)
{
- unsigned int divisor;
+ unsigned int mode;
if (!serial_omap_baud_is_mode16(port, baud))
- divisor = 13;
+ mode = 13;
else
- divisor = 16;
- return port->uartclk/(baud * divisor);
+ mode = 16;
+ return port->uartclk/(mode * baud);
}
static void serial_omap_enable_ms(struct uart_port *port)
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 44077c0..87f25de 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1996,6 +1996,8 @@
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Intel EG20T PCH UART PCI Driver");
+MODULE_DEVICE_TABLE(pci, pch_uart_pci_id);
+
module_param(default_baud, uint, S_IRUGO);
MODULE_PARM_DESC(default_baud,
"Default BAUD for initial driver state and console (default 9600)");
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index f3dfa19..c1af04d 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -407,7 +407,14 @@
static void s3c24xx_serial_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
- /* todo - possibly remove AFC and do manual CTS */
+ unsigned int umcon = rd_regl(port, S3C2410_UMCON);
+
+ if (mctrl & TIOCM_RTS)
+ umcon |= S3C2410_UMCOM_RTS_LOW;
+ else
+ umcon &= ~S3C2410_UMCOM_RTS_LOW;
+
+ wr_regl(port, S3C2410_UMCON, umcon);
}
static void s3c24xx_serial_break_ctl(struct uart_port *port, int break_state)
@@ -774,8 +781,6 @@
if (termios->c_cflag & CSTOPB)
ulcon |= S3C2410_LCON_STOPB;
- umcon = (termios->c_cflag & CRTSCTS) ? S3C2410_UMCOM_AFC : 0;
-
if (termios->c_cflag & PARENB) {
if (termios->c_cflag & PARODD)
ulcon |= S3C2410_LCON_PODD;
@@ -792,6 +797,15 @@
wr_regl(port, S3C2410_ULCON, ulcon);
wr_regl(port, S3C2410_UBRDIV, quot);
+
+ umcon = rd_regl(port, S3C2410_UMCON);
+ if (termios->c_cflag & CRTSCTS) {
+ umcon |= S3C2410_UMCOM_AFC;
+ /* Disable RTS when RX FIFO contains 63 bytes */
+ umcon &= ~S3C2412_UMCON_AFC_8;
+ } else {
+ umcon &= ~S3C2410_UMCOM_AFC;
+ }
wr_regl(port, S3C2410_UMCON, umcon);
if (ourport->info->has_divslot)
@@ -1254,7 +1268,7 @@
ourport->baudclk = ERR_PTR(-EINVAL);
ourport->info = ourport->drv_data->info;
ourport->cfg = (dev_get_platdata(&pdev->dev)) ?
- (struct s3c2410_uartcfg *)dev_get_platdata(&pdev->dev) :
+ dev_get_platdata(&pdev->dev) :
ourport->drv_data->def_cfg;
ourport->port.fifosize = (ourport->info->fifosize) ?
diff --git a/drivers/tty/serial/samsung.h b/drivers/tty/serial/samsung.h
index aaa617a..8827e54 100644
--- a/drivers/tty/serial/samsung.h
+++ b/drivers/tty/serial/samsung.h
@@ -63,7 +63,7 @@
/* conversion functions */
-#define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
+#define s3c24xx_dev_to_port(__dev) dev_get_drvdata(__dev)
/* register access controls */
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 49e9bbf..a447f71 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -986,6 +986,7 @@
return 0;
}
+ uart_unregister_driver(&s->uart);
err_out:
if (!IS_ERR(s->regulator))
return regulator_disable(s->regulator);
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index 440a962..90a080b 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -1220,8 +1220,6 @@
{
struct uart_txx9_port *up = pci_get_drvdata(dev);
- pci_set_drvdata(dev, NULL);
-
if (up) {
serial_txx9_unregister_port(up->port.line);
pci_disable_device(dev);
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 61c1ad0..f186a8f 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -529,7 +529,7 @@
while (sirfport->rx_completed != sirfport->rx_issued) {
sirfsoc_uart_insert_rx_buf_to_tty(sirfport,
SIRFSOC_RX_DMA_BUF_SIZE);
- sirfsoc_rx_submit_one_dma_desc(port, sirfport->rx_completed++);
+ sirfport->rx_completed++;
sirfport->rx_completed %= SIRFSOC_RX_LOOP_BUF_CNT;
}
count = CIRC_CNT(sirfport->rx_dma_items[sirfport->rx_issued].xmit.head,
@@ -706,12 +706,19 @@
{
struct sirfsoc_uart_port *sirfport = (struct sirfsoc_uart_port *)param;
struct uart_port *port = &sirfport->port;
+ struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+ struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
unsigned long flags;
spin_lock_irqsave(&sirfport->rx_lock, flags);
while (sirfport->rx_completed != sirfport->rx_issued) {
sirfsoc_uart_insert_rx_buf_to_tty(sirfport,
SIRFSOC_RX_DMA_BUF_SIZE);
- sirfsoc_rx_submit_one_dma_desc(port, sirfport->rx_completed++);
+ if (rd_regl(port, ureg->sirfsoc_int_en_reg) &
+ uint_en->sirfsoc_rx_timeout_en)
+ sirfsoc_rx_submit_one_dma_desc(port,
+ sirfport->rx_completed++);
+ else
+ sirfport->rx_completed++;
sirfport->rx_completed %= SIRFSOC_RX_LOOP_BUF_CNT;
}
spin_unlock_irqrestore(&sirfport->rx_lock, flags);
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index f597e88..c94d234 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -140,6 +140,10 @@
static void tty_port_destructor(struct kref *kref)
{
struct tty_port *port = container_of(kref, struct tty_port, kref);
+
+ /* check if last port ref was dropped before tty release */
+ if (WARN_ON(port->itty))
+ return;
if (port->xmit_buf)
free_page((unsigned long)port->xmit_buf);
tty_port_destroy(port);
@@ -480,8 +484,6 @@
if (port->count) {
spin_unlock_irqrestore(&port->lock, flags);
- if (port->ops->drop)
- port->ops->drop(port);
return 0;
}
set_bit(ASYNCB_CLOSING, &port->flags);
@@ -500,9 +502,7 @@
/* Flush the ldisc buffering */
tty_ldisc_flush(tty);
- /* Don't call port->drop for the last reference. Callers will want
- to drop the last active reference in ->shutdown() or the tty
- shutdown path */
+ /* Report to caller this is the last port reference */
return 1;
}
EXPORT_SYMBOL(tty_port_close_start);
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 9a8e8c5..61b1137 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1300,21 +1300,30 @@
case 27:
vc->vc_reverse = 0;
break;
- case 38: /* ANSI X3.64-1979 (SCO-ish?)
- * Enables underscore, white foreground
- * with white underscore (Linux - use
- * default foreground).
+ case 38:
+ case 48: /* ITU T.416
+ * Higher colour modes.
+ * They break the usual properties of SGR codes
+ * and thus need to be detected and ignored by
+ * hand. Strictly speaking, that standard also
+ * wants : rather than ; as separators, contrary
+ * to ECMA-48, but no one produces such codes
+ * and almost no one accepts them.
*/
- vc->vc_color = (vc->vc_def_color & 0x0f) | (vc->vc_color & 0xf0);
- vc->vc_underline = 1;
+ i++;
+ if (i > vc->vc_npar)
+ break;
+ if (vc->vc_par[i] == 5) /* 256 colours */
+ i++; /* ubiquitous */
+ else if (vc->vc_par[i] == 2) /* 24 bit colours */
+ i += 3; /* extremely rare */
+ /* Subcommands 3 (CMY) and 4 (CMYK) are so insane
+ * that detecting them is not worth the few extra
+ * bytes of kernel's size.
+ */
break;
- case 39: /* ANSI X3.64-1979 (SCO-ish?)
- * Disable underline option.
- * Reset colour to default? It did this
- * before...
- */
+ case 39:
vc->vc_color = (vc->vc_def_color & 0x0f) | (vc->vc_color & 0xf0);
- vc->vc_underline = 0;
break;
case 49:
vc->vc_color = (vc->vc_def_color & 0xf0) | (vc->vc_color & 0x0f);
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 64f8646..2f47989 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -180,7 +180,6 @@
IFF the port was initialized. Do not use to free resources. Called
under the port mutex to serialize against activate/shutdowns */
void (*shutdown)(struct tty_port *port);
- void (*drop)(struct tty_port *port);
/* Called under the port mutex from tty_port_open, serialized using
the port mutex */
/* FIXME: long term getting the tty argument *out* of this would be