Merge remote branch 'fsl-linux-sdk/imx_3.0.35' into imx_3.0.35_android

Conflicts:
	arch/arm/configs/imx6_defconfig
	arch/arm/configs/imx6_updater_defconfig
	arch/arm/configs/imx6s_defconfig
	arch/arm/include/asm/dma-mapping.h
	arch/arm/kernel/smp.c
	arch/arm/mach-mx6/Kconfig
	arch/arm/mach-mx6/board-mx6dl_arm2.h
	arch/arm/mach-mx6/board-mx6dl_sabresd.h
	arch/arm/mach-mx6/board-mx6q_arm2.c
	arch/arm/mach-mx6/board-mx6q_arm2.h
	arch/arm/mach-mx6/board-mx6q_sabreauto.c
	arch/arm/mach-mx6/board-mx6q_sabreauto.h
	arch/arm/mach-mx6/board-mx6q_sabrelite.c
	arch/arm/mach-mx6/board-mx6q_sabresd.c
	arch/arm/mach-mx6/board-mx6q_sabresd.h
	arch/arm/mach-mx6/board-mx6sl_arm2.c
	arch/arm/mach-mx6/board-mx6sl_arm2.h
	arch/arm/mach-mx6/board-mx6solo_sabreauto.h
	arch/arm/mach-mx6/bus_freq.c
	arch/arm/mach-mx6/clock.c
	arch/arm/mach-mx6/clock_mx6sl.c
	arch/arm/mach-mx6/cpu.c
	arch/arm/mach-mx6/crm_regs.h
	arch/arm/mach-mx6/devices-imx6q.h
	arch/arm/mach-mx6/devices.c
	arch/arm/mach-mx6/mx6_anatop_regulator.c
	arch/arm/mach-mx6/pcie.c
	arch/arm/mach-mx6/system.c
	arch/arm/mm/dma-mapping.c
	arch/arm/plat-mxc/devices/Makefile
	arch/arm/plat-mxc/devices/platform-imx-dcp.c
	arch/arm/plat-mxc/devices/platform-imx-ocotp.c
	arch/arm/plat-mxc/devices/platform-imx-rngb.c
	arch/arm/plat-mxc/devices/platform-mxc_hdmi.c
	arch/arm/plat-mxc/include/mach/devices-common.h
	arch/arm/plat-mxc/include/mach/esdhc.h
	arch/arm/plat-mxc/include/mach/iomux-mx6dl.h
	arch/arm/plat-mxc/include/mach/iomux-mx6q.h
	arch/arm/plat-mxc/include/mach/memory.h
	arch/arm/plat-mxc/include/mach/mx6.h
	arch/arm/plat-mxc/include/mach/mxc_edid.h
	arch/arm/plat-mxc/include/mach/mxc_hdmi.h
	arch/arm/plat-mxc/system.c
	drivers/Kconfig
	drivers/char/hw_random/fsl-rngc.c
	drivers/cpufreq/Makefile
	drivers/cpufreq/cpufreq_interactive.c
	drivers/crypto/Kconfig
	drivers/crypto/caam/caamalg.c
	drivers/crypto/caam/compat.h
	drivers/crypto/caam/ctrl.c
	drivers/crypto/caam/desc_constr.h
	drivers/crypto/caam/intern.h
	drivers/crypto/dcp.c
	drivers/dma/pch_dma.c
	drivers/input/keyboard/gpio_keys.c
	drivers/input/touchscreen/egalax_ts.c
	drivers/input/touchscreen/max11801_ts.c
	drivers/media/video/mxc/capture/Kconfig
	drivers/media/video/mxc/capture/adv7180.c
	drivers/media/video/mxc/capture/ipu_csi_enc.c
	drivers/media/video/mxc/capture/ipu_prp_vf_sdc.c
	drivers/media/video/mxc/capture/ipu_prp_vf_sdc_bg.c
	drivers/media/video/mxc/capture/mxc_v4l2_capture.c
	drivers/media/video/mxc/capture/ov5640_mipi.c
	drivers/media/video/mxc/output/mxc_vout.c
	drivers/misc/Kconfig
	drivers/misc/Makefile
	drivers/mmc/card/block.c
	drivers/mmc/core/mmc.c
	drivers/mmc/host/mmci.c
	drivers/mmc/host/sdhci-esdhc-imx.c
	drivers/mmc/host/sdhci.c
	drivers/mmc/host/sdhci.h
	drivers/mxc/Kconfig
	drivers/mxc/Makefile
	drivers/mxc/asrc/mxc_asrc.c
	drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_context.c
	drivers/mxc/gpu-viv/arch/XAQ2/hal/kernel/gc_hal_kernel_hardware.c
	drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel.c
	drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel.h
	drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_command.c
	drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_event.c
	drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal.h
	drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_base.h
	drivers/mxc/gpu-viv/hal/kernel/inc/gc_hal_options.h
	drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_os.c
	drivers/mxc/ipu3/ipu_device.c
	drivers/mxc/vpu/mxc_vpu.c
	drivers/net/fec.c
	drivers/net/wireless/Makefile
	drivers/power/sabresd_battery.c
	drivers/regulator/core.c
	drivers/tty/serial/imx.c
	drivers/usb/core/hub.c
	drivers/usb/gadget/arcotg_udc.c
	drivers/usb/gadget/fsl_updater.c
	drivers/usb/gadget/inode.c
	drivers/usb/host/ehci-hub.c
	drivers/video/mxc/ldb.c
	drivers/video/mxc/mipi_dsi.c
	drivers/video/mxc/mxc_dispdrv.c
	drivers/video/mxc/mxc_dispdrv.h
	drivers/video/mxc/mxc_edid.c
	drivers/video/mxc/mxc_elcdif_fb.c
	drivers/video/mxc/mxc_ipuv3_fb.c
	drivers/video/mxc/mxc_spdc_fb.c
	drivers/video/mxc_hdmi.c
	drivers/watchdog/imx2_wdt.c
	fs/proc/base.c
	include/linux/mmc/host.h
	include/linux/mmc/sdhci.h
	include/linux/mxc_v4l2.h
	kernel/power/main.c
	sound/soc/codecs/mxc_hdmi.c
	sound/soc/codecs/mxc_spdif.c
	sound/soc/codecs/wm8962.c
	sound/soc/imx/Kconfig
	sound/soc/imx/Makefile
	sound/soc/imx/imx-cs42888.c
	sound/soc/imx/imx-esai.c
	sound/soc/imx/imx-wm8958.c
	sound/soc/imx/imx-wm8962.c

16 files changed, 135 insertions, 39 deletions

diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index 220579592c20..34111486baac 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -1113,8 +1113,10 @@ static int set_serial_info(struct async_struct * info,
 		    (new_serial.close_delay != state->close_delay) ||
 		    (new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
 		    ((new_serial.flags & ~ASYNC_USR_MASK) !=
-		     (state->flags & ~ASYNC_USR_MASK)))
+		     (state->flags & ~ASYNC_USR_MASK))) {
+			tty_unlock();
 			return -EPERM;
+		}
 		state->flags = ((state->flags & ~ASYNC_USR_MASK) |
 			       (new_serial.flags & ASYNC_USR_MASK));
 		info->flags = ((info->flags & ~ASYNC_USR_MASK) |
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index ba679ce0a774..8f82f7ab3541 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -1330,7 +1330,7 @@ static void moxa_start(struct tty_struct *tty)
 	if (ch == NULL)
 		return;
 
-	if (!(ch->statusflags & TXSTOPPED))
+	if (!test_bit(TXSTOPPED, &ch->statusflags))
 		return;
 
 	MoxaPortTxEnable(ch);
diff --git a/drivers/tty/serial/8250_pci.c b/drivers/tty/serial/8250_pci.c
index ff48fdb5c0bf..21098ed99635 100644
--- a/drivers/tty/serial/8250_pci.c
+++ b/drivers/tty/serial/8250_pci.c
@@ -1459,51 +1459,61 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.vendor         = PCI_VENDOR_ID_INTEL,
 		.device         = 0x8811,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = PCI_VENDOR_ID_INTEL,
 		.device         = 0x8812,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = PCI_VENDOR_ID_INTEL,
 		.device         = 0x8813,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = PCI_VENDOR_ID_INTEL,
 		.device         = 0x8814,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = 0x10DB,
 		.device         = 0x8027,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = 0x10DB,
 		.device         = 0x8028,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = 0x10DB,
 		.device         = 0x8029,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = 0x10DB,
 		.device         = 0x800C,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = 0x10DB,
 		.device         = 0x800D,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	{
 		.vendor         = 0x10DB,
 		.device         = 0x800D,
 		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
 	},
 	/*
 	 * Cronyx Omega PCI (PLX-chip based)
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 50bc5a5ac653..37db1d5898e0 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -555,7 +555,7 @@ static int __devinit altera_uart_probe(struct platform_device *pdev)
 	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (res_mem)
 		port->mapbase = res_mem->start;
-	else if (platp->mapbase)
+	else if (platp)
 		port->mapbase = platp->mapbase;
 	else
 		return -EINVAL;
@@ -563,7 +563,7 @@ static int __devinit altera_uart_probe(struct platform_device *pdev)
 	res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res_irq)
 		port->irq = res_irq->start;
-	else if (platp->irq)
+	else if (platp)
 		port->irq = platp->irq;
 
 	/* Check platform data first so we can override device node data */
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index f5f6831b0a64..21dc4b761eda 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1376,6 +1376,10 @@ static int pl011_startup(struct uart_port *port)
 
 	uap->port.uartclk = clk_get_rate(uap->clk);
 
+	/* Clear pending error and receive interrupts */
+	writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS |
+	       UART011_RTIS | UART011_RXIS, uap->port.membase + UART011_ICR);
+
 	/*
 	 * Allocate the IRQ
 	 */
@@ -1410,10 +1414,6 @@ static int pl011_startup(struct uart_port *port)
 	cr = UART01x_CR_UARTEN | UART011_CR_RXE | UART011_CR_TXE;
 	writew(cr, uap->port.membase + UART011_CR);
 
-	/* Clear pending error interrupts */
-	writew(UART011_OEIS | UART011_BEIS | UART011_PEIS | UART011_FEIS,
-	       uap->port.membase + UART011_ICR);
-
 	/*
 	 * initialise the old status of the modem signals
 	 */
@@ -1428,6 +1428,9 @@ static int pl011_startup(struct uart_port *port)
 	 * as well.
 	 */
 	spin_lock_irq(&uap->port.lock);
+	/* Clear out any spuriously appearing RX interrupts */
+	 writew(UART011_RTIS | UART011_RXIS,
+		uap->port.membase + UART011_ICR);
 	uap->im = UART011_RTIM;
 	if (!pl011_dma_rx_running(uap))
 		uap->im |= UART011_RXIM;
@@ -1733,9 +1736,19 @@ pl011_console_write(struct console *co, const char *s, unsigned int count)
 {
 	struct uart_amba_port *uap = amba_ports[co->index];
 	unsigned int status, old_cr, new_cr;
+	unsigned long flags;
+	int locked = 1;
 
 	clk_enable(uap->clk);
 
+	local_irq_save(flags);
+	if (uap->port.sysrq)
+		locked = 0;
+	else if (oops_in_progress)
+		locked = spin_trylock(&uap->port.lock);
+	else
+		spin_lock(&uap->port.lock);
+
 	/*
 	 *	First save the CR then disable the interrupts
 	 */
@@ -1755,6 +1768,10 @@ pl011_console_write(struct console *co, const char *s, unsigned int count)
 	} while (status & UART01x_FR_BUSY);
 	writew(old_cr, uap->port.membase + UART011_CR);
 
+	if (locked)
+		spin_unlock(&uap->port.lock);
+	local_irq_restore(flags);
+
 	clk_disable(uap->clk);
 }
 
@@ -1906,6 +1923,10 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 	uap->port.line = i;
 	pl011_dma_probe(uap);
 
+	/* Ensure interrupts from this UART are masked and cleared */
+	writew(0, uap->port.membase + UART011_IMSC);
+	writew(0xffff, uap->port.membase + UART011_ICR);
+
 	snprintf(uap->type, sizeof(uap->type), "PL011 rev%u", amba_rev(dev));
 
 	amba_ports[i] = uap;
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index af9b7814965a..b989495c763e 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -199,8 +199,9 @@ void atmel_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	unsigned int mode;
+	unsigned long flags;
 
-	spin_lock(&port->lock);
+	spin_lock_irqsave(&port->lock, flags);
 
 	/* Disable interrupts */
 	UART_PUT_IDR(port, atmel_port->tx_done_mask);
@@ -231,7 +232,7 @@ void atmel_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
 	/* Enable interrupts */
 	UART_PUT_IER(port, atmel_port->tx_done_mask);
 
-	spin_unlock(&port->lock);
+	spin_unlock_irqrestore(&port->lock, flags);
 
 }
 
diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index e6c3dbd781d6..836fe2731234 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -154,10 +154,9 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id)
 		port->x_char = 0;
 		return IRQ_HANDLED;
 	}
-	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
-		clps711xuart_stop_tx(port);
-		return IRQ_HANDLED;
-	}
+
+	if (uart_circ_empty(xmit) || uart_tx_stopped(port))
+		goto disable_tx_irq;
 
 	count = port->fifosize >> 1;
 	do {
@@ -171,8 +170,11 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id)
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
 		uart_write_wakeup(port);
 
-	if (uart_circ_empty(xmit))
-		clps711xuart_stop_tx(port);
+	if (uart_circ_empty(xmit)) {
+	disable_tx_irq:
+		disable_irq_nosync(TX_IRQ(port));
+		tx_enabled(port) = 0;
+	}
 
 	return IRQ_HANDLED;
 }
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index beba18533371..8a66f3eeb992 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -697,6 +697,9 @@ static unsigned int imx_get_mctrl(struct uart_port *port)
 	if (readl(sport->port.membase + UCR2) & UCR2_CTS)
 		tmp |= TIOCM_RTS;
 
+	if (readl(sport->port.membase + UTS) & UTS_LOOP)
+		tmp |= TIOCM_LOOP;
+
 	return tmp;
 }
 
@@ -707,10 +710,19 @@ static void imx_set_mctrl(struct uart_port *port, unsigned int mctrl)
 
 	temp = readl(sport->port.membase + UCR2) & ~UCR2_CTS;
 
-	if (mctrl & TIOCM_RTS)
+	if (mctrl & TIOCM_RTS) {
 		temp |= UCR2_CTS;
+		writel(temp, sport->port.membase + UCR2);
+	}
 
-	writel(temp, sport->port.membase + UCR2);
+	if (mctrl & TIOCM_LOOP) {
+		temp = readl(sport->port.membase + UTS) & ~UTS_LOOP;
+		temp |= UTS_LOOP;
+		writel(temp, sport->port.membase + UTS);
+	} else {
+		temp = readl(sport->port.membase + UTS) & ~UTS_LOOP;
+		writel(temp, sport->port.membase + UTS);
+	}
 }
 
 /*
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 2aaafa9c58a2..6c12d94e6d3f 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -269,6 +269,7 @@ static void jsm_io_resume(struct pci_dev *pdev)
 	struct jsm_board *brd = pci_get_drvdata(pdev);
 
 	pci_restore_state(pdev);
+	pci_save_state(pdev);
 
 	jsm_uart_port_init(brd);
 }
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 7e02c9c344fe..5b3d063a4aa1 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -368,6 +368,8 @@ static void mxs_auart_settermios(struct uart_port *u,
 
 	writel(ctrl, u->membase + AUART_LINECTRL);
 	writel(ctrl2, u->membase + AUART_CTRL2);
+
+	uart_update_timeout(u, termios->c_cflag, baud);
 }
 
 static irqreturn_t mxs_auart_irq_handle(int irq, void *context)
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 902588b2a127..101eda9f1965 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -602,7 +602,8 @@ static void pch_request_dma(struct uart_port *port)
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
 
-	dma_dev = pci_get_bus_and_slot(2, PCI_DEVFN(0xa, 0)); /* Get DMA's dev
+	dma_dev = pci_get_bus_and_slot(priv->pdev->bus->number,
+				       PCI_DEVFN(0xa, 0)); /* Get DMA's dev
 								information */
 	/* Set Tx DMA */
 	param = &priv->param_tx;
@@ -1353,9 +1354,11 @@ static int pch_uart_verify_port(struct uart_port *port,
 			__func__);
 		return -EOPNOTSUPP;
 #endif
-		priv->use_dma = 1;
 		priv->use_dma_flag = 1;
 		dev_info(priv->port.dev, "PCH UART : Use DMA Mode\n");
+		if (!priv->use_dma)
+			pch_request_dma(port);
+		priv->use_dma = 1;
 	}
 
 	return 0;
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 5668b3eb96d8..2a106a94cdd0 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2328,6 +2328,7 @@ void uart_unregister_driver(struct uart_driver *drv)
 	tty_unregister_driver(p);
 	put_tty_driver(p);
 	kfree(drv->state);
+	drv->state = NULL;
 	drv->tty_driver = NULL;
 }
 
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index ebd8629c108d..bead17e5634a 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -953,17 +953,20 @@ static void sci_dma_tx_complete(void *arg)
 	port->icount.tx += sg_dma_len(&s->sg_tx);
 
 	async_tx_ack(s->desc_tx);
-	s->cookie_tx = -EINVAL;
 	s->desc_tx = NULL;
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
 		uart_write_wakeup(port);
 
 	if (!uart_circ_empty(xmit)) {
+		s->cookie_tx = 0;
 		schedule_work(&s->work_tx);
-	} else if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
-		u16 ctrl = sci_in(port, SCSCR);
-		sci_out(port, SCSCR, ctrl & ~SCSCR_TIE);
+	} else {
+		s->cookie_tx = -EINVAL;
+		if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
+			u16 ctrl = sci_in(port, SCSCR);
+			sci_out(port, SCSCR, ctrl & ~SCSCR_TIE);
+		}
 	}
 
 	spin_unlock_irqrestore(&port->lock, flags);
@@ -1225,8 +1228,10 @@ static void sci_start_tx(struct uart_port *port)
 	}
 
 	if (s->chan_tx && !uart_circ_empty(&s->port.state->xmit) &&
-	    s->cookie_tx < 0)
+	    s->cookie_tx < 0) {
+		s->cookie_tx = 0;
 		schedule_work(&s->work_tx);
+	}
 #endif
 
 	if (!s->chan_tx || port->type == PORT_SCIFA || port->type == PORT_SCIFB) {
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index 33d37d230f8f..a4aaca0e014d 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -227,7 +227,6 @@ int tty_port_block_til_ready(struct tty_port *port,
 	int do_clocal = 0, retval;
 	unsigned long flags;
 	DEFINE_WAIT(wait);
-	int cd;
 
 	/* block if port is in the process of being closed */
 	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
@@ -284,11 +283,14 @@ int tty_port_block_til_ready(struct tty_port *port,
 				retval = -ERESTARTSYS;
 			break;
 		}
-		/* Probe the carrier. For devices with no carrier detect this
-		   will always return true */
-		cd = tty_port_carrier_raised(port);
+		/*
+		 * Probe the carrier. For devices with no carrier detect
+		 * tty_port_carrier_raised will always return true.
+		 * Never ask drivers if CLOCAL is set, this causes troubles
+		 * on some hardware.
+		 */
 		if (!(port->flags & ASYNC_CLOSING) &&
-				(do_clocal || cd))
+				(do_clocal || tty_port_carrier_raised(port)))
 			break;
 		if (signal_pending(current)) {
 			retval = -ERESTARTSYS;
diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index 45d3e80156d4..f3438083a285 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -516,6 +516,7 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
 	int err = 0, err1, i;
 	struct uni_pagedir *p, *q;
 
+	/* Save original vc_unipagdir_loc in case we allocate a new one */
 	p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc;
 	if (p->readonly) return -EIO;
 	
@@ -528,26 +529,57 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
 		err1 = con_clear_unimap(vc, NULL);
 		if (err1) return err1;
 		
+		/*
+		 * Since refcount was > 1, con_clear_unimap() allocated a
+		 * a new uni_pagedir for this vc.  Re: p != q
+		 */
 		q = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc;
-		for (i = 0, l = 0; i < 32; i++)
+
+		/*
+		 * uni_pgdir is a 32*32*64 table with rows allocated
+		 * when its first entry is added.  The unicode value must
+		 * still be incremented for empty rows.  We are copying
+		 * entries from "p" (old) to "q" (new).
+		 */
+		l = 0;		/* unicode value */
+		for (i = 0; i < 32; i++)
 		if ((p1 = p->uni_pgdir[i]))
 			for (j = 0; j < 32; j++)
-			if ((p2 = p1[j]))
+			if ((p2 = p1[j])) {
 				for (k = 0; k < 64; k++, l++)
 				if (p2[k] != 0xffff) {
+					/*
+					 * Found one, copy entry for unicode
+					 * l with fontpos value p2[k].
+					 */
 					err1 = con_insert_unipair(q, l, p2[k]);
 					if (err1) {
 						p->refcount++;
 						*vc->vc_uni_pagedir_loc = (unsigned long)p;
 						con_release_unimap(q);
 						kfree(q);
-						return err1; 
+						return err1;
 					}
-              			}
-              	p = q;
-	} else if (p == dflt)
+				}
+			} else {
+				/* Account for row of 64 empty entries */
+				l += 64;
+			}
+		else
+			/* Account for empty table */
+			l += 32 * 64;
+
+		/*
+		 * Finished copying font table, set vc_uni_pagedir to new table
+		 */
+		p = q;
+	} else if (p == dflt) {
 		dflt = NULL;
-	
+	}
+
+	/*
+	 * Insert user specified unicode pairs into new table.
+	 */
 	while (ct--) {
 		unsigned short unicode, fontpos;
 		__get_user(unicode, &list->unicode);
@@ -557,11 +589,14 @@ int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
 		list++;
 	}
 	
+	/*
+	 * Merge with fontmaps of any other virtual consoles.
+	 */
 	if (con_unify_unimap(vc, p))
 		return err;
 
 	for (i = 0; i <= 3; i++)
-		set_inverse_transl(vc, p, i); /* Update all inverse translations */
+		set_inverse_transl(vc, p, i); /* Update inverse translations */
 	set_inverse_trans_unicode(vc, p);
   
 	return err;
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 5e096f43bcea..65447c5f91d7 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -1463,7 +1463,6 @@ compat_kdfontop_ioctl(struct compat_console_font_op __user *fontop,
 	if (!perm && op->op != KD_FONT_OP_GET)
 		return -EPERM;
 	op->data = compat_ptr(((struct compat_console_font_op *)op)->data);
-	op->flags |= KD_FONT_FLAG_OLD;
 	i = con_font_op(vc, op);
 	if (i)
 		return i;