Merge tag 'tty-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg Kroah-Hartman:
 "Here are a few tty/serial driver fixes for 3.8-rc4 that resolve a
  number of problems that people have been having, including the ptys
  ioctl issue that is a regression fix"

* tag 'tty-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  8250/16?50: Add support for Broadcom TruManage redirected serial port
  pty: return EINVAL for TIOCGPTN for BSD ptys
  serial:ifx6x60:Keep word size accordance with SPI controller
  tty: 8250_dw: Fix inverted arguments to serial_out in IRQ handler
  serial: samsung: remove redundant setting of line config during port reset
  serial:ifx6x60:Delete SPI timer when shut down port
  tty/8250: The correct device id for this card is 0x0022
  tty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definition
  tty: serial: vt8500: fix return value check in vt8500_serial_probe()
  serial: mxs-auart: Index is unsigned
  mxs: uart: fix setting RTS from software

diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index be6a373601b783677b876a512854edcfb28f3732..79ff3a5e925d6fdc252c6aa6d2f066e959e4637f 100644 (file)
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -441,6 +441,8 @@ static int pty_bsd_ioctl(struct tty_struct *tty,
                return pty_get_pktmode(tty, (int __user *)arg);
        case TIOCSIG:    /* Send signal to other side of pty */
                return pty_signal(tty, (int) arg);
+       case TIOCGPTN: /* TTY returns ENOTTY, but glibc expects EINVAL here */
+               return -EINVAL;
        }
        return -ENOIOCTLCMD;
 }

diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c
index d085e3a8ec0644bc9760caa0aed026533905c2a4..f9320437a64971c605b3e153d2a8aa4b160155bf 100644 (file)
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250.c
@@ -300,6 +300,12 @@ static const struct serial8250_config uart_config[] = {
                                  UART_FCR_R_TRIG_00 | UART_FCR_T_TRIG_00,
                .flags          = UART_CAP_FIFO,
        },
+       [PORT_BRCM_TRUMANAGE] = {
+               .name           = "TruManage",
+               .fifo_size      = 1,
+               .tx_loadsz      = 1024,
+               .flags          = UART_CAP_HFIFO,
+       },
        [PORT_8250_CIR] = {
                .name           = "CIR port"
        }
@@ -1490,6 +1496,11 @@ void serial8250_tx_chars(struct uart_8250_port *up)
                port->icount.tx++;
                if (uart_circ_empty(xmit))
                        break;
+               if (up->capabilities & UART_CAP_HFIFO) {
+                       if ((serial_port_in(port, UART_LSR) & BOTH_EMPTY) !=
+                           BOTH_EMPTY)
+                               break;
+               }
        } while (--count > 0);
 
        if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)

diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h
index 3b4ea84898c2e719dc233ecddde63dc3c421bd0d..12caa1292b75c20b3d8221d4576a6f97c69db3d4 100644 (file)
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -40,6 +40,7 @@ struct serial8250_config {
 #define UART_CAP_AFE   (1 << 11)       /* MCR-based hw flow control */
 #define UART_CAP_UUE   (1 << 12)       /* UART needs IER bit 6 set (Xscale) */
 #define UART_CAP_RTOIE (1 << 13)       /* UART needs IER bit 4 set (Xscale, Tegra) */
+#define UART_CAP_HFIFO (1 << 14)       /* UART has a "hidden" FIFO */
 
 #define UART_BUG_QUOT  (1 << 0)        /* UART has buggy quot LSB */
 #define UART_BUG_TXEN  (1 << 1)        /* UART has buggy TX IIR status */

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 1d0dba2d562d27bb72a3e91f2273176c4cd67f41..096d2ef48b32f6b62abfe5c220a44440545fb0b4 100644 (file)
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -79,7 +79,7 @@ static int dw8250_handle_irq(struct uart_port *p)
        } else if ((iir & UART_IIR_BUSY) == UART_IIR_BUSY) {
                /* Clear the USR and write the LCR again. */
                (void)p->serial_in(p, UART_USR);
-               p->serial_out(p, d->last_lcr, UART_LCR);
+               p->serial_out(p, UART_LCR, d->last_lcr);
 
                return 1;
        }

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 26b9dc012ed0b64ec1f1b3807b573af0f5f82b91..a27a98e1b0667fc8bfd7e379eaaaa1cfa6c9229a 100644 (file)
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1085,6 +1085,18 @@ pci_omegapci_setup(struct serial_private *priv,
        return setup_port(priv, port, 2, idx * 8, 0);
 }
 
+static int
+pci_brcm_trumanage_setup(struct serial_private *priv,
+                        const struct pciserial_board *board,
+                        struct uart_8250_port *port, int idx)
+{
+       int ret = pci_default_setup(priv, board, port, idx);
+
+       port->port.type = PORT_BRCM_TRUMANAGE;
+       port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+       return ret;
+}
+
 static int skip_tx_en_setup(struct serial_private *priv,
                        const struct pciserial_board *board,
                        struct uart_8250_port *port, int idx)
@@ -1301,9 +1313,10 @@ pci_wch_ch353_setup(struct serial_private *priv,
 #define PCI_VENDOR_ID_AGESTAR          0x5372
 #define PCI_DEVICE_ID_AGESTAR_9375     0x6872
 #define PCI_VENDOR_ID_ASIX             0x9710
-#define PCI_DEVICE_ID_COMMTECH_4222PCIE 0x0019
 #define PCI_DEVICE_ID_COMMTECH_4224PCIE        0x0020
 #define PCI_DEVICE_ID_COMMTECH_4228PCIE        0x0021
+#define PCI_DEVICE_ID_COMMTECH_4222PCIE        0x0022
+#define PCI_DEVICE_ID_BROADCOM_TRUMANAGE 0x160a
 
 
 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
@@ -1953,6 +1966,17 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
                .subdevice      = PCI_ANY_ID,
                .setup          = pci_xr17v35x_setup,
        },
+       /*
+        * Broadcom TruManage (NetXtreme)
+        */
+       {
+               .vendor         = PCI_VENDOR_ID_BROADCOM,
+               .device         = PCI_DEVICE_ID_BROADCOM_TRUMANAGE,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .setup          = pci_brcm_trumanage_setup,
+       },
+
        /*
         * Default "match everything" terminator entry
         */
@@ -2148,6 +2172,7 @@ enum pci_board_num_t {
        pbn_ce4100_1_115200,
        pbn_omegapci,
        pbn_NETMOS9900_2s_115200,
+       pbn_brcm_trumanage,
 };
 
 /*
@@ -2246,7 +2271,7 @@ static struct pciserial_board pci_boards[] = {
 
        [pbn_b0_8_1152000_200] = {
                .flags          = FL_BASE0,
-               .num_ports      = 2,
+               .num_ports      = 8,
                .base_baud      = 1152000,
                .uart_offset    = 0x200,
        },
@@ -2892,6 +2917,12 @@ static struct pciserial_board pci_boards[] = {
                .num_ports      = 2,
                .base_baud      = 115200,
        },
+       [pbn_brcm_trumanage] = {
+               .flags          = FL_BASE0,
+               .num_ports      = 1,
+               .reg_shift      = 2,
+               .base_baud      = 115200,
+       },
 };
 
 static const struct pci_device_id blacklist[] = {
@@ -4470,6 +4501,13 @@ static struct pci_device_id serial_pci_tbl[] = {
                PCI_ANY_ID, PCI_ANY_ID, 0, 0,
                pbn_omegapci },
 
+       /*
+        * Broadcom TruManage
+        */
+       {       PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BROADCOM_TRUMANAGE,
+               PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+               pbn_brcm_trumanage },
+
        /*
         * AgeStar as-prs2-009
         */

diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index 675d94ab0aff63f97de2f52e7da565b8e5309013..8cb6d8d66a1362b1b2f5566a875c1f56248a3b29 100644 (file)
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -637,6 +637,7 @@ static void ifx_port_shutdown(struct tty_port *port)
 
        clear_bit(IFX_SPI_STATE_IO_AVAILABLE, &ifx_dev->flags);
        mrdy_set_low(ifx_dev);
+       del_timer(&ifx_dev->spi_timer);
        clear_bit(IFX_SPI_STATE_TIMER_PENDING, &ifx_dev->flags);
        tasklet_kill(&ifx_dev->io_work_tasklet);
 }
@@ -810,7 +811,8 @@ static void ifx_spi_io(unsigned long data)
                ifx_dev->spi_xfer.cs_change = 0;
                ifx_dev->spi_xfer.speed_hz = ifx_dev->spi_dev->max_speed_hz;
                /* ifx_dev->spi_xfer.speed_hz = 390625; */
-               ifx_dev->spi_xfer.bits_per_word = spi_bpw;
+               ifx_dev->spi_xfer.bits_per_word =
+                       ifx_dev->spi_dev->bits_per_word;
 
                ifx_dev->spi_xfer.tx_buf = ifx_dev->tx_buffer;
                ifx_dev->spi_xfer.rx_buf = ifx_dev->rx_buffer;

diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 6db23b035efe0766dcc99e8bddb0a301dd458217..e55615eb34ad32037cf78dc18aef63a00373e1ee 100644 (file)
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -253,7 +253,7 @@ static void mxs_auart_tx_chars(struct mxs_auart_port *s)
        struct circ_buf *xmit = &s->port.state->xmit;
 
        if (auart_dma_enabled(s)) {
-               int i = 0;
+               u32 i = 0;
                int size;
                void *buffer = s->tx_dma_buf;
 
@@ -412,10 +412,12 @@ static void mxs_auart_set_mctrl(struct uart_port *u, unsigned mctrl)
 
        u32 ctrl = readl(u->membase + AUART_CTRL2);
 
-       ctrl &= ~AUART_CTRL2_RTSEN;
+       ctrl &= ~(AUART_CTRL2_RTSEN | AUART_CTRL2_RTS);
        if (mctrl & TIOCM_RTS) {
                if (tty_port_cts_enabled(&u->state->port))
                        ctrl |= AUART_CTRL2_RTSEN;
+               else
+                       ctrl |= AUART_CTRL2_RTS;
        }
 
        s->ctrl = mctrl;

diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 12e5249d053e79b8d15991daf27614755c03c3bf..e514b3a4dc572069da4df72cba488f6be9cd1c98 100644 (file)
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1006,7 +1006,6 @@ static void s3c24xx_serial_resetport(struct uart_port *port,
 
        ucon &= ucon_mask;
        wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
-       wr_regl(port, S3C2410_ULCON, cfg->ulcon);
 
        /* reset both fifos */
        wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);

diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index 8fd181436a6ba246e2247c5be871ac7f3c71c760..d5ed9f61300562c8febbb8a8095304a1c9955899 100644 (file)
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -604,7 +604,7 @@ static int vt8500_serial_probe(struct platform_device *pdev)
        vt8500_port->uart.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF;
 
        vt8500_port->clk = of_clk_get(pdev->dev.of_node, 0);
-       if (vt8500_port->clk) {
+       if (!IS_ERR(vt8500_port->clk)) {
                vt8500_port->uart.uartclk = clk_get_rate(vt8500_port->clk);
        } else {
                /* use the default of 24Mhz if not specified and warn */

diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 78f99d97475b50c8427607d9bd23a3457a27319a..2c6c85f18ea027440761c780134bb757b0c53c8e 100644 (file)
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -50,7 +50,8 @@
 #define PORT_LPC3220   22      /* NXP LPC32xx SoC "Standard" UART */
 #define PORT_8250_CIR  23      /* CIR infrared port, has its own driver */
 #define PORT_XR17V35X  24      /* Exar XR17V35x UARTs */
-#define PORT_MAX_8250  24      /* max port ID */
+#define PORT_BRCM_TRUMANAGE    24
+#define PORT_MAX_8250  25      /* max port ID */
 
 /*
  * ARM specific type numbers.  These are not currently guaranteed