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-rw-r--r--drivers/tty/ehv_bytechan.c1
-rw-r--r--drivers/tty/mxser.c11
-rw-r--r--drivers/tty/n_tty.c8
-rw-r--r--drivers/tty/rocket.c288
-rw-r--r--drivers/tty/serial/8250/8250_core.c14
-rw-r--r--drivers/tty/serial/8250/8250_dw.c7
-rw-r--r--drivers/tty/serial/amba-pl011.c2
-rw-r--r--drivers/tty/serial/imx.c2
-rw-r--r--drivers/tty/serial/mcf.c4
-rw-r--r--drivers/tty/serial/mpc52xx_uart.c11
-rw-r--r--drivers/tty/serial/nwpserial.c2
-rw-r--r--drivers/tty/serial/omap-serial.c23
-rw-r--r--drivers/tty/serial/samsung.c18
-rw-r--r--drivers/tty/serial/sh-sci.c104
-rw-r--r--drivers/tty/vt/vt.c14
-rw-r--r--drivers/tty/vt/vt_ioctl.c67
16 files changed, 351 insertions, 225 deletions
diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index 6d0c27cd03da..9bffcec5ad82 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -859,6 +859,7 @@ error:
*/
static void __exit ehv_bc_exit(void)
{
+ platform_driver_unregister(&ehv_bc_tty_driver);
tty_unregister_driver(ehv_bc_driver);
put_tty_driver(ehv_bc_driver);
kfree(bcs);
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 71d6eb2c93b1..4c4a23674569 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1618,8 +1618,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
if (ip->type == PORT_16550A)
me->fifo[p] = 1;
- opmode = inb(ip->opmode_ioaddr)>>((p % 4) * 2);
- opmode &= OP_MODE_MASK;
+ if (ip->board->chip_flag == MOXA_MUST_MU860_HWID) {
+ opmode = inb(ip->opmode_ioaddr)>>((p % 4) * 2);
+ opmode &= OP_MODE_MASK;
+ } else {
+ opmode = RS232_MODE;
+ }
me->iftype[p] = opmode;
mutex_unlock(&port->mutex);
}
@@ -1676,6 +1680,9 @@ static int mxser_ioctl(struct tty_struct *tty,
int shiftbit;
unsigned char val, mask;
+ if (info->board->chip_flag != MOXA_MUST_MU860_HWID)
+ return -EFAULT;
+
p = tty->index % 4;
if (cmd == MOXA_SET_OP_MODE) {
if (get_user(opmode, (int __user *) argp))
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index d655416087b7..6c7fe90ad72d 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1573,6 +1573,14 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
ldata->real_raw = 0;
}
n_tty_set_room(tty);
+ /*
+ * 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) {
+ start_tty(tty);
+ }
+
/* The termios change make the tty ready for I/O */
wake_up_interruptible(&tty->write_wait);
wake_up_interruptible(&tty->read_wait);
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index 82d35c5a58fd..354564ea47c5 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -150,12 +150,14 @@ static Word_t aiop_intr_bits[AIOP_CTL_SIZE] = {
AIOP_INTR_BIT_3
};
+#ifdef CONFIG_PCI
static Word_t upci_aiop_intr_bits[AIOP_CTL_SIZE] = {
UPCI_AIOP_INTR_BIT_0,
UPCI_AIOP_INTR_BIT_1,
UPCI_AIOP_INTR_BIT_2,
UPCI_AIOP_INTR_BIT_3
};
+#endif
static Byte_t RData[RDATASIZE] = {
0x00, 0x09, 0xf6, 0x82,
@@ -227,7 +229,6 @@ static unsigned long nextLineNumber;
static int __init init_ISA(int i);
static void rp_wait_until_sent(struct tty_struct *tty, int timeout);
static void rp_flush_buffer(struct tty_struct *tty);
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model);
static unsigned char GetLineNumber(int ctrl, int aiop, int ch);
static unsigned char SetLineNumber(int ctrl, int aiop, int ch);
static void rp_start(struct tty_struct *tty);
@@ -241,11 +242,6 @@ static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags);
static void sModemReset(CONTROLLER_T * CtlP, int chan, int on);
static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on);
static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data);
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
- ByteIO_t * AiopIOList, int AiopIOListSize,
- WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
- int PeriodicOnly, int altChanRingIndicator,
- int UPCIRingInd);
static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
ByteIO_t * AiopIOList, int AiopIOListSize,
int IRQNum, Byte_t Frequency, int PeriodicOnly);
@@ -1775,6 +1771,145 @@ static DEFINE_PCI_DEVICE_TABLE(rocket_pci_ids) = {
};
MODULE_DEVICE_TABLE(pci, rocket_pci_ids);
+/* Resets the speaker controller on RocketModem II and III devices */
+static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model)
+{
+ ByteIO_t addr;
+
+ /* RocketModem II speaker control is at the 8th port location of offset 0x40 */
+ if ((model == MODEL_RP4M) || (model == MODEL_RP6M)) {
+ addr = CtlP->AiopIO[0] + 0x4F;
+ sOutB(addr, 0);
+ }
+
+ /* RocketModem III speaker control is at the 1st port location of offset 0x80 */
+ if ((model == MODEL_UPCI_RM3_8PORT)
+ || (model == MODEL_UPCI_RM3_4PORT)) {
+ addr = CtlP->AiopIO[0] + 0x88;
+ sOutB(addr, 0);
+ }
+}
+
+/***************************************************************************
+Function: sPCIInitController
+Purpose: Initialization of controller global registers and controller
+ structure.
+Call: sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize,
+ IRQNum,Frequency,PeriodicOnly)
+ CONTROLLER_T *CtlP; Ptr to controller structure
+ int CtlNum; Controller number
+ ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
+ This list must be in the order the AIOPs will be found on the
+ controller. Once an AIOP in the list is not found, it is
+ assumed that there are no more AIOPs on the controller.
+ int AiopIOListSize; Number of addresses in AiopIOList
+ int IRQNum; Interrupt Request number. Can be any of the following:
+ 0: Disable global interrupts
+ 3: IRQ 3
+ 4: IRQ 4
+ 5: IRQ 5
+ 9: IRQ 9
+ 10: IRQ 10
+ 11: IRQ 11
+ 12: IRQ 12
+ 15: IRQ 15
+ Byte_t Frequency: A flag identifying the frequency
+ of the periodic interrupt, can be any one of the following:
+ FREQ_DIS - periodic interrupt disabled
+ FREQ_137HZ - 137 Hertz
+ FREQ_69HZ - 69 Hertz
+ FREQ_34HZ - 34 Hertz
+ FREQ_17HZ - 17 Hertz
+ FREQ_9HZ - 9 Hertz
+ FREQ_4HZ - 4 Hertz
+ If IRQNum is set to 0 the Frequency parameter is
+ overidden, it is forced to a value of FREQ_DIS.
+ int PeriodicOnly: 1 if all interrupts except the periodic
+ interrupt are to be blocked.
+ 0 is both the periodic interrupt and
+ other channel interrupts are allowed.
+ If IRQNum is set to 0 the PeriodicOnly parameter is
+ overidden, it is forced to a value of 0.
+Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller
+ initialization failed.
+
+Comments:
+ If periodic interrupts are to be disabled but AIOP interrupts
+ are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
+
+ If interrupts are to be completely disabled set IRQNum to 0.
+
+ Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
+ invalid combination.
+
+ This function performs initialization of global interrupt modes,
+ but it does not actually enable global interrupts. To enable
+ and disable global interrupts use functions sEnGlobalInt() and
+ sDisGlobalInt(). Enabling of global interrupts is normally not
+ done until all other initializations are complete.
+
+ Even if interrupts are globally enabled, they must also be
+ individually enabled for each channel that is to generate
+ interrupts.
+
+Warnings: No range checking on any of the parameters is done.
+
+ No context switches are allowed while executing this function.
+
+ After this function all AIOPs on the controller are disabled,
+ they can be enabled with sEnAiop().
+*/
+static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
+ ByteIO_t * AiopIOList, int AiopIOListSize,
+ WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
+ int PeriodicOnly, int altChanRingIndicator,
+ int UPCIRingInd)
+{
+ int i;
+ ByteIO_t io;
+
+ CtlP->AltChanRingIndicator = altChanRingIndicator;
+ CtlP->UPCIRingInd = UPCIRingInd;
+ CtlP->CtlNum = CtlNum;
+ CtlP->CtlID = CTLID_0001; /* controller release 1 */
+ CtlP->BusType = isPCI; /* controller release 1 */
+
+ if (ConfigIO) {
+ CtlP->isUPCI = 1;
+ CtlP->PCIIO = ConfigIO + _PCI_9030_INT_CTRL;
+ CtlP->PCIIO2 = ConfigIO + _PCI_9030_GPIO_CTRL;
+ CtlP->AiopIntrBits = upci_aiop_intr_bits;
+ } else {
+ CtlP->isUPCI = 0;
+ CtlP->PCIIO =
+ (WordIO_t) ((ByteIO_t) AiopIOList[0] + _PCI_INT_FUNC);
+ CtlP->AiopIntrBits = aiop_intr_bits;
+ }
+
+ sPCIControllerEOI(CtlP); /* clear EOI if warm init */
+ /* Init AIOPs */
+ CtlP->NumAiop = 0;
+ for (i = 0; i < AiopIOListSize; i++) {
+ io = AiopIOList[i];
+ CtlP->AiopIO[i] = (WordIO_t) io;
+ CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
+
+ CtlP->AiopID[i] = sReadAiopID(io); /* read AIOP ID */
+ if (CtlP->AiopID[i] == AIOPID_NULL) /* if AIOP does not exist */
+ break; /* done looking for AIOPs */
+
+ CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
+ sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE); /* clock prescaler */
+ sOutB(io + _INDX_DATA, sClockPrescale);
+ CtlP->NumAiop++; /* bump count of AIOPs */
+ }
+
+ if (CtlP->NumAiop == 0)
+ return (-1);
+ else
+ return (CtlP->NumAiop);
+}
+
/*
* Called when a PCI card is found. Retrieves and stores model information,
* init's aiopic and serial port hardware.
@@ -2519,147 +2654,6 @@ static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
return (CtlP->NumAiop);
}
-#ifdef CONFIG_PCI
-/***************************************************************************
-Function: sPCIInitController
-Purpose: Initialization of controller global registers and controller
- structure.
-Call: sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize,
- IRQNum,Frequency,PeriodicOnly)
- CONTROLLER_T *CtlP; Ptr to controller structure
- int CtlNum; Controller number
- ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
- This list must be in the order the AIOPs will be found on the
- controller. Once an AIOP in the list is not found, it is
- assumed that there are no more AIOPs on the controller.
- int AiopIOListSize; Number of addresses in AiopIOList
- int IRQNum; Interrupt Request number. Can be any of the following:
- 0: Disable global interrupts
- 3: IRQ 3
- 4: IRQ 4
- 5: IRQ 5
- 9: IRQ 9
- 10: IRQ 10
- 11: IRQ 11
- 12: IRQ 12
- 15: IRQ 15
- Byte_t Frequency: A flag identifying the frequency
- of the periodic interrupt, can be any one of the following:
- FREQ_DIS - periodic interrupt disabled
- FREQ_137HZ - 137 Hertz
- FREQ_69HZ - 69 Hertz
- FREQ_34HZ - 34 Hertz
- FREQ_17HZ - 17 Hertz
- FREQ_9HZ - 9 Hertz
- FREQ_4HZ - 4 Hertz
- If IRQNum is set to 0 the Frequency parameter is
- overidden, it is forced to a value of FREQ_DIS.
- int PeriodicOnly: 1 if all interrupts except the periodic
- interrupt are to be blocked.
- 0 is both the periodic interrupt and
- other channel interrupts are allowed.
- If IRQNum is set to 0 the PeriodicOnly parameter is
- overidden, it is forced to a value of 0.
-Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller
- initialization failed.
-
-Comments:
- If periodic interrupts are to be disabled but AIOP interrupts
- are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
-
- If interrupts are to be completely disabled set IRQNum to 0.
-
- Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
- invalid combination.
-
- This function performs initialization of global interrupt modes,
- but it does not actually enable global interrupts. To enable
- and disable global interrupts use functions sEnGlobalInt() and
- sDisGlobalInt(). Enabling of global interrupts is normally not
- done until all other initializations are complete.
-
- Even if interrupts are globally enabled, they must also be
- individually enabled for each channel that is to generate
- interrupts.
-
-Warnings: No range checking on any of the parameters is done.
-
- No context switches are allowed while executing this function.
-
- After this function all AIOPs on the controller are disabled,
- they can be enabled with sEnAiop().
-*/
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
- ByteIO_t * AiopIOList, int AiopIOListSize,
- WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
- int PeriodicOnly, int altChanRingIndicator,
- int UPCIRingInd)
-{
- int i;
- ByteIO_t io;
-
- CtlP->AltChanRingIndicator = altChanRingIndicator;
- CtlP->UPCIRingInd = UPCIRingInd;
- CtlP->CtlNum = CtlNum;
- CtlP->CtlID = CTLID_0001; /* controller release 1 */
- CtlP->BusType = isPCI; /* controller release 1 */
-
- if (ConfigIO) {
- CtlP->isUPCI = 1;
- CtlP->PCIIO = ConfigIO + _PCI_9030_INT_CTRL;
- CtlP->PCIIO2 = ConfigIO + _PCI_9030_GPIO_CTRL;
- CtlP->AiopIntrBits = upci_aiop_intr_bits;
- } else {
- CtlP->isUPCI = 0;
- CtlP->PCIIO =
- (WordIO_t) ((ByteIO_t) AiopIOList[0] + _PCI_INT_FUNC);
- CtlP->AiopIntrBits = aiop_intr_bits;
- }
-
- sPCIControllerEOI(CtlP); /* clear EOI if warm init */
- /* Init AIOPs */
- CtlP->NumAiop = 0;
- for (i = 0; i < AiopIOListSize; i++) {
- io = AiopIOList[i];
- CtlP->AiopIO[i] = (WordIO_t) io;
- CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
-
- CtlP->AiopID[i] = sReadAiopID(io); /* read AIOP ID */
- if (CtlP->AiopID[i] == AIOPID_NULL) /* if AIOP does not exist */
- break; /* done looking for AIOPs */
-
- CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
- sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE); /* clock prescaler */
- sOutB(io + _INDX_DATA, sClockPrescale);
- CtlP->NumAiop++; /* bump count of AIOPs */
- }
-
- if (CtlP->NumAiop == 0)
- return (-1);
- else
- return (CtlP->NumAiop);
-}
-
-/* Resets the speaker controller on RocketModem II and III devices */
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model)
-{
- ByteIO_t addr;
-
- /* RocketModem II speaker control is at the 8th port location of offset 0x40 */
- if ((model == MODEL_RP4M) || (model == MODEL_RP6M)) {
- addr = CtlP->AiopIO[0] + 0x4F;
- sOutB(addr, 0);
- }
-
- /* RocketModem III speaker control is at the 1st port location of offset 0x80 */
- if ((model == MODEL_UPCI_RM3_8PORT)
- || (model == MODEL_UPCI_RM3_4PORT)) {
- addr = CtlP->AiopIO[0] + 0x88;
- sOutB(addr, 0);
- }
-}
-#endif
-
/***************************************************************************
Function: sReadAiopID
Purpose: Read the AIOP idenfication number directly from an AIOP.
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 46528d57be72..86c00b1c5583 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2755,7 +2755,7 @@ static void __init serial8250_isa_init_ports(void)
if (nr_uarts > UART_NR)
nr_uarts = UART_NR;
- for (i = 0; i < UART_NR; i++) {
+ for (i = 0; i < nr_uarts; i++) {
struct uart_8250_port *up = &serial8250_ports[i];
struct uart_port *port = &up->port;
@@ -2916,7 +2916,7 @@ static int __init serial8250_console_setup(struct console *co, char *options)
* if so, search for the first available port that does have
* console support.
*/
- if (co->index >= UART_NR)
+ if (co->index >= nr_uarts)
co->index = 0;
port = &serial8250_ports[co->index].port;
if (!port->iobase && !port->membase)
@@ -2957,7 +2957,7 @@ int serial8250_find_port(struct uart_port *p)
int line;
struct uart_port *port;
- for (line = 0; line < UART_NR; line++) {
+ for (line = 0; line < nr_uarts; line++) {
port = &serial8250_ports[line].port;
if (uart_match_port(p, port))
return line;
@@ -3110,7 +3110,7 @@ static int serial8250_remove(struct platform_device *dev)
{
int i;
- for (i = 0; i < UART_NR; i++) {
+ for (i = 0; i < nr_uarts; i++) {
struct uart_8250_port *up = &serial8250_ports[i];
if (up->port.dev == &dev->dev)
@@ -3178,7 +3178,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *
/*
* First, find a port entry which matches.
*/
- for (i = 0; i < UART_NR; i++)
+ for (i = 0; i < nr_uarts; i++)
if (uart_match_port(&serial8250_ports[i].port, port))
return &serial8250_ports[i];
@@ -3187,7 +3187,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *
* free entry. We look for one which hasn't been previously
* used (indicated by zero iobase).
*/
- for (i = 0; i < UART_NR; i++)
+ for (i = 0; i < nr_uarts; i++)
if (serial8250_ports[i].port.type == PORT_UNKNOWN &&
serial8250_ports[i].port.iobase == 0)
return &serial8250_ports[i];
@@ -3196,7 +3196,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *
* That also failed. Last resort is to find any entry which
* doesn't have a real port associated with it.
*/
- for (i = 0; i < UART_NR; i++)
+ for (i = 0; i < nr_uarts; i++)
if (serial8250_ports[i].port.type == PORT_UNKNOWN)
return &serial8250_ports[i];
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index beaa283f5cc6..d07b6af3a937 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -338,7 +338,8 @@ static int dw8250_runtime_suspend(struct device *dev)
{
struct dw8250_data *data = dev_get_drvdata(dev);
- clk_disable_unprepare(data->clk);
+ if (!IS_ERR(data->clk))
+ clk_disable_unprepare(data->clk);
return 0;
}
@@ -347,7 +348,8 @@ static int dw8250_runtime_resume(struct device *dev)
{
struct dw8250_data *data = dev_get_drvdata(dev);
- clk_prepare_enable(data->clk);
+ if (!IS_ERR(data->clk))
+ clk_prepare_enable(data->clk);
return 0;
}
@@ -367,6 +369,7 @@ MODULE_DEVICE_TABLE(of, dw8250_of_match);
static const struct acpi_device_id dw8250_acpi_match[] = {
{ "INT33C4", 0 },
{ "INT33C5", 0 },
+ { "80860F0A", 0 },
{ },
};
MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 8ab70a620919..e2774f9ecd59 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -332,7 +332,7 @@ static void pl011_dma_probe_initcall(struct device *dev, struct uart_amba_port *
dmaengine_slave_config(chan, &rx_conf);
uap->dmarx.chan = chan;
- if (plat->dma_rx_poll_enable) {
+ if (plat && plat->dma_rx_poll_enable) {
/* Set poll rate if specified. */
if (plat->dma_rx_poll_rate) {
uap->dmarx.auto_poll_rate = false;
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 147c9e193595..8cdfbd365892 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -761,6 +761,8 @@ static int imx_startup(struct uart_port *port)
temp = readl(sport->port.membase + UCR2);
temp |= (UCR2_RXEN | UCR2_TXEN);
+ if (!sport->have_rtscts)
+ temp |= UCR2_IRTS;
writel(temp, sport->port.membase + UCR2);
if (USE_IRDA(sport)) {
diff --git a/drivers/tty/serial/mcf.c b/drivers/tty/serial/mcf.c
index e956377a38fe..65be0c00c4bf 100644
--- a/drivers/tty/serial/mcf.c
+++ b/drivers/tty/serial/mcf.c
@@ -707,8 +707,10 @@ static int __init mcf_init(void)
if (rc)
return rc;
rc = platform_driver_register(&mcf_platform_driver);
- if (rc)
+ if (rc) {
+ uart_unregister_driver(&mcf_driver);
return rc;
+ }
return 0;
}
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 018bad922554..f51b280f3bf2 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1497,18 +1497,23 @@ mpc52xx_uart_init(void)
if (psc_ops && psc_ops->fifoc_init) {
ret = psc_ops->fifoc_init();
if (ret)
- return ret;
+ goto err_init;
}
ret = platform_driver_register(&mpc52xx_uart_of_driver);
if (ret) {
printk(KERN_ERR "%s: platform_driver_register failed (%i)\n",
__FILE__, ret);
- uart_unregister_driver(&mpc52xx_uart_driver);
- return ret;
+ goto err_reg;
}
return 0;
+err_reg:
+ if (psc_ops && psc_ops->fifoc_uninit)
+ psc_ops->fifoc_uninit();
+err_init:
+ uart_unregister_driver(&mpc52xx_uart_driver);
+ return ret;
}
static void __exit
diff --git a/drivers/tty/serial/nwpserial.c b/drivers/tty/serial/nwpserial.c
index 77287c54f331..549c70a2a63e 100644
--- a/drivers/tty/serial/nwpserial.c
+++ b/drivers/tty/serial/nwpserial.c
@@ -199,7 +199,7 @@ static void nwpserial_shutdown(struct uart_port *port)
dcr_write(up->dcr_host, UART_IER, up->ier);
/* free irq */
- free_irq(up->port.irq, port);
+ free_irq(up->port.irq, up);
}
static int nwpserial_verify_port(struct uart_port *port,
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 30d4f7a783cd..f0b9f6b52b32 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -202,26 +202,6 @@ static int serial_omap_get_context_loss_count(struct uart_omap_port *up)
return pdata->get_context_loss_count(up->dev);
}
-static void serial_omap_set_forceidle(struct uart_omap_port *up)
-{
- struct omap_uart_port_info *pdata = up->dev->platform_data;
-
- if (!pdata || !pdata->set_forceidle)
- return;
-
- pdata->set_forceidle(up->dev);
-}
-
-static void serial_omap_set_noidle(struct uart_omap_port *up)
-{
- struct omap_uart_port_info *pdata = up->dev->platform_data;
-
- if (!pdata || !pdata->set_noidle)
- return;
-
- pdata->set_noidle(up->dev);
-}
-
static void serial_omap_enable_wakeup(struct uart_omap_port *up, bool enable)
{
struct omap_uart_port_info *pdata = up->dev->platform_data;
@@ -298,8 +278,6 @@ static void serial_omap_stop_tx(struct uart_port *port)
serial_out(up, UART_IER, up->ier);
}
- serial_omap_set_forceidle(up);
-
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
}
@@ -364,7 +342,6 @@ static void serial_omap_start_tx(struct uart_port *port)
pm_runtime_get_sync(up->dev);
serial_omap_enable_ier_thri(up);
- serial_omap_set_noidle(up);
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
}
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 074b9194144f..94a91c2b7ca0 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1166,6 +1166,18 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
ourport->tx_irq = ret;
ourport->clk = clk_get(&platdev->dev, "uart");
+ if (IS_ERR(ourport->clk)) {
+ pr_err("%s: Controller clock not found\n",
+ dev_name(&platdev->dev));
+ return PTR_ERR(ourport->clk);
+ }
+
+ ret = clk_prepare_enable(ourport->clk);
+ if (ret) {
+ pr_err("uart: clock failed to prepare+enable: %d\n", ret);
+ clk_put(ourport->clk);
+ return ret;
+ }
/* Keep all interrupts masked and cleared */
if (s3c24xx_serial_has_interrupt_mask(port)) {
@@ -1180,6 +1192,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
/* reset the fifos (and setup the uart) */
s3c24xx_serial_resetport(port, cfg);
+ clk_disable_unprepare(ourport->clk);
return 0;
}
@@ -1700,9 +1713,7 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
#define S5PV210_SERIAL_DRV_DATA (kernel_ulong_t)NULL
#endif
-#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS4212) || \
- defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250) || \
- defined(CONFIG_SOC_EXYNOS5440)
+#if defined(CONFIG_ARCH_EXYNOS)
static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = {
.info = &(struct s3c24xx_uart_info) {
.name = "Samsung Exynos4 UART",
@@ -1803,6 +1814,7 @@ static int __init s3c24xx_serial_modinit(void)
static void __exit s3c24xx_serial_modexit(void)
{
+ platform_driver_unregister(&samsung_serial_driver);
uart_unregister_driver(&s3c24xx_uart_drv);
}
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 156418619949..7477e0ea5cdb 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -146,6 +146,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = sci_reg_invalid,
[SCLSR] = sci_reg_invalid,
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -165,6 +166,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = sci_reg_invalid,
[SCLSR] = sci_reg_invalid,
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -183,6 +185,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = sci_reg_invalid,
[SCLSR] = sci_reg_invalid,
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -201,6 +204,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = { 0x3c, 16 },
[SCSPTR] = sci_reg_invalid,
[SCLSR] = sci_reg_invalid,
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -220,6 +224,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = { 0x20, 16 },
[SCLSR] = { 0x24, 16 },
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -238,6 +243,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = sci_reg_invalid,
[SCLSR] = sci_reg_invalid,
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -256,6 +262,26 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = { 0x20, 16 },
[SCLSR] = { 0x24, 16 },
+ [HSSRR] = sci_reg_invalid,
+ },
+
+ /*
+ * Common HSCIF definitions.
+ */
+ [SCIx_HSCIF_REGTYPE] = {
+ [SCSMR] = { 0x00, 16 },
+ [SCBRR] = { 0x04, 8 },
+ [SCSCR] = { 0x08, 16 },
+ [SCxTDR] = { 0x0c, 8 },
+ [SCxSR] = { 0x10, 16 },
+ [SCxRDR] = { 0x14, 8 },
+ [SCFCR] = { 0x18, 16 },
+ [SCFDR] = { 0x1c, 16 },
+ [SCTFDR] = sci_reg_invalid,
+ [SCRFDR] = sci_reg_invalid,
+ [SCSPTR] = { 0x20, 16 },
+ [SCLSR] = { 0x24, 16 },
+ [HSSRR] = { 0x40, 16 },
},
/*
@@ -275,6 +301,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = sci_reg_invalid,
[SCLSR] = { 0x24, 16 },
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -294,6 +321,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = { 0x20, 16 },
[SCSPTR] = { 0x24, 16 },
[SCLSR] = { 0x28, 16 },
+ [HSSRR] = sci_reg_invalid,
},
/*
@@ -313,6 +341,7 @@ static struct plat_sci_reg sci_regmap[SCIx_NR_REGTYPES][SCIx_NR_REGS] = {
[SCRFDR] = sci_reg_invalid,
[SCSPTR] = sci_reg_invalid,
[SCLSR] = sci_reg_invalid,
+ [HSSRR] = sci_reg_invalid,
},
};
@@ -374,6 +403,9 @@ static int sci_probe_regmap(struct plat_sci_port *cfg)
*/
cfg->regtype = SCIx_SH4_SCIF_REGTYPE;
break;
+ case PORT_HSCIF:
+ cfg->regtype = SCIx_HSCIF_REGTYPE;
+ break;
default:
printk(KERN_ERR "Can't probe register map for given port\n");
return -EINVAL;
@@ -1798,6 +1830,42 @@ static unsigned int sci_scbrr_calc(unsigned int algo_id, unsigned int bps,
return ((freq + 16 * bps) / (32 * bps) - 1);
}
+/* calculate sample rate, BRR, and clock select for HSCIF */
+static void sci_baud_calc_hscif(unsigned int bps, unsigned long freq,
+ int *brr, unsigned int *srr,
+ unsigned int *cks)
+{
+ int sr, c, br, err;
+ int min_err = 1000; /* 100% */
+
+ /* Find the combination of sample rate and clock select with the
+ smallest deviation from the desired baud rate. */
+ for (sr = 8; sr <= 32; sr++) {
+ for (c = 0; c <= 3; c++) {
+ /* integerized formulas from HSCIF documentation */
+ br = freq / (sr * (1 << (2 * c + 1)) * bps) - 1;
+ if (br < 0 || br > 255)
+ continue;
+ err = freq / ((br + 1) * bps * sr *
+ (1 << (2 * c + 1)) / 1000) - 1000;
+ if (min_err > err) {
+ min_err = err;
+ *brr = br;
+ *srr = sr - 1;
+ *cks = c;
+ }
+ }
+ }
+
+ if (min_err == 1000) {
+ WARN_ON(1);
+ /* use defaults */
+ *brr = 255;
+ *srr = 15;
+ *cks = 0;
+ }
+}
+
static void sci_reset(struct uart_port *port)
{
struct plat_sci_reg *reg;
@@ -1819,8 +1887,9 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
{
struct sci_port *s = to_sci_port(port);
struct plat_sci_reg *reg;
- unsigned int baud, smr_val, max_baud, cks;
+ unsigned int baud, smr_val, max_baud, cks = 0;
int t = -1;
+ unsigned int srr = 15;
/*
* earlyprintk comes here early on with port->uartclk set to zero.
@@ -1833,8 +1902,17 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
max_baud = port->uartclk ? port->uartclk / 16 : 115200;
baud = uart_get_baud_rate(port, termios, old, 0, max_baud);
- if (likely(baud && port->uartclk))
- t = sci_scbrr_calc(s->cfg->scbrr_algo_id, baud, port->uartclk);
+ if (likely(baud && port->uartclk)) {
+ if (s->cfg->scbrr_algo_id == SCBRR_ALGO_6) {
+ sci_baud_calc_hscif(baud, port->uartclk, &t, &srr,
+ &cks);
+ } else {
+ t = sci_scbrr_calc(s->cfg->scbrr_algo_id, baud,
+ port->uartclk);
+ for (cks = 0; t >= 256 && cks <= 3; cks++)
+ t >>= 2;
+ }
+ }
sci_port_enable(s);
@@ -1853,15 +1931,15 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
uart_update_timeout(port, termios->c_cflag, baud);
- for (cks = 0; t >= 256 && cks <= 3; cks++)
- t >>= 2;
-
dev_dbg(port->dev, "%s: SMR %x, cks %x, t %x, SCSCR %x\n",
__func__, smr_val, cks, t, s->cfg->scscr);
if (t >= 0) {
serial_port_out(port, SCSMR, (smr_val & ~3) | cks);
serial_port_out(port, SCBRR, t);
+ reg = sci_getreg(port, HSSRR);
+ if (reg->size)
+ serial_port_out(port, HSSRR, srr | HSCIF_SRE);
udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */
} else
serial_port_out(port, SCSMR, smr_val);
@@ -1947,6 +2025,8 @@ static const char *sci_type(struct uart_port *port)
return "scifa";
case PORT_SCIFB:
return "scifb";
+ case PORT_HSCIF:
+ return "hscif";
}
return NULL;
@@ -1960,7 +2040,10 @@ static inline unsigned long sci_port_size(struct uart_port *port)
* from platform resource data at such a time that ports begin to
* behave more erratically.
*/
- return 64;
+ if (port->type == PORT_HSCIF)
+ return 96;
+ else
+ return 64;
}
static int sci_remap_port(struct uart_port *port)
@@ -2085,6 +2168,9 @@ static int sci_init_single(struct platform_device *dev,
case PORT_SCIFB:
port->fifosize = 256;
break;
+ case PORT_HSCIF:
+ port->fifosize = 128;
+ break;
case PORT_SCIFA:
port->fifosize = 64;
break;
@@ -2325,7 +2411,7 @@ static inline int sci_probe_earlyprintk(struct platform_device *pdev)
#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */
static char banner[] __initdata =
- KERN_INFO "SuperH SCI(F) driver initialized\n";
+ KERN_INFO "SuperH (H)SCI(F) driver initialized\n";
static struct uart_driver sci_uart_driver = {
.owner = THIS_MODULE,
@@ -2484,4 +2570,4 @@ module_exit(sci_exit);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:sh-sci");
MODULE_AUTHOR("Paul Mundt");
-MODULE_DESCRIPTION("SuperH SCI(F) serial driver");
+MODULE_DESCRIPTION("SuperH (H)SCI(F) serial driver");
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index fbd447b390f7..740202d8a5c4 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -779,7 +779,6 @@ int vc_allocate(unsigned int currcons) /* return 0 on success */
con_set_default_unimap(vc);
vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
if (!vc->vc_screenbuf) {
- tty_port_destroy(&vc->port);
kfree(vc);
vc_cons[currcons].d = NULL;
return -ENOMEM;
@@ -986,26 +985,25 @@ static int vt_resize(struct tty_struct *tty, struct winsize *ws)
return ret;
}
-void vc_deallocate(unsigned int currcons)
+struct vc_data *vc_deallocate(unsigned int currcons)
{
+ struct vc_data *vc = NULL;
+
WARN_CONSOLE_UNLOCKED();
if (vc_cons_allocated(currcons)) {
- struct vc_data *vc = vc_cons[currcons].d;
- struct vt_notifier_param param = { .vc = vc };
+ struct vt_notifier_param param;
+ param.vc = vc = vc_cons[currcons].d;
atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, &param);
vcs_remove_sysfs(currcons);
vc->vc_sw->con_deinit(vc);
put_pid(vc->vt_pid);
module_put(vc->vc_sw->owner);
kfree(vc->vc_screenbuf);
- if (currcons >= MIN_NR_CONSOLES) {
- tty_port_destroy(&vc->port);
- kfree(vc);
- }
vc_cons[currcons].d = NULL;
}
+ return vc;
}
/*
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 98ff1735eafc..fc2c06c66e89 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -283,6 +283,51 @@ do_unimap_ioctl(int cmd, struct unimapdesc __user *user_ud, int perm, struct vc_
return 0;
}
+/* deallocate a single console, if possible (leave 0) */
+static int vt_disallocate(unsigned int vc_num)
+{
+ struct vc_data *vc = NULL;
+ int ret = 0;
+
+ if (!vc_num)
+ return 0;
+
+ console_lock();
+ if (VT_BUSY(vc_num))
+ ret = -EBUSY;
+ else
+ vc = vc_deallocate(vc_num);
+ console_unlock();
+
+ if (vc && vc_num >= MIN_NR_CONSOLES) {
+ tty_port_destroy(&vc->port);
+ kfree(vc);
+ }
+
+ return ret;
+}
+
+/* deallocate all unused consoles, but leave 0 */
+static void vt_disallocate_all(void)
+{
+ struct vc_data *vc[MAX_NR_CONSOLES];
+ int i;
+
+ console_lock();
+ for (i = 1; i < MAX_NR_CONSOLES; i++)
+ if (!VT_BUSY(i))
+ vc[i] = vc_deallocate(i);
+ else
+ vc[i] = NULL;
+ console_unlock();
+
+ for (i = 1; i < MAX_NR_CONSOLES; i++) {
+ if (vc[i] && i >= MIN_NR_CONSOLES) {
+ tty_port_destroy(&vc[i]->port);
+ kfree(vc[i]);
+ }
+ }
+}
/*
@@ -769,24 +814,10 @@ int vt_ioctl(struct tty_struct *tty,
ret = -ENXIO;
break;
}
- if (arg == 0) {
- /* deallocate all unused consoles, but leave 0 */
- console_lock();
- for (i=1; i<MAX_NR_CONSOLES; i++)
- if (! VT_BUSY(i))
- vc_deallocate(i);
- console_unlock();
- } else {
- /* deallocate a single console, if possible */
- arg--;
- if (VT_BUSY(arg))
- ret = -EBUSY;
- else if (arg) { /* leave 0 */
- console_lock();
- vc_deallocate(arg);
- console_unlock();
- }
- }
+ if (arg == 0)
+ vt_disallocate_all();
+ else
+ ret = vt_disallocate(--arg);
break;
case VT_RESIZE:
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.