diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-17 08:15:49 +1300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-01-17 08:15:49 +1300 |
commit | 7b78de8cb9c095c6d85eefa1bd1b350a3cfe67d0 (patch) | |
tree | 2db9494d399b472c4cc996268c6204eb2ebf06c2 | |
parent | 937102fede1ad4943a3c3559b28468713370d7f9 (diff) | |
parent | 31ec77aca72ee5920ed3ec3d047734dc0bc43342 (diff) |
Merge tag 'tty-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some tty and serial driver fixes for 3.19-rc5 that resolve
some reported issues, and add a new device id to the 8250 serial port
driver.
All have been in linux-next with no reported problems"
* tag 'tty-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: samsung: Add the support for Exynos5433 SoC
Revert "tty: Fix pty master poll() after slave closes v2"
tty: Prevent hw state corruption in exclusive mode reopen
tty: Add support for the WCH384 4S multi-IO card
serial: fix parisc boot hang
-rw-r--r-- | drivers/tty/n_tty.c | 9 | ||||
-rw-r--r-- | drivers/tty/serial/8250/8250_pci.c | 29 | ||||
-rw-r--r-- | drivers/tty/serial/samsung.c | 56 | ||||
-rw-r--r-- | drivers/tty/serial/serial_core.c | 4 | ||||
-rw-r--r-- | drivers/tty/tty_io.c | 7 |
5 files changed, 70 insertions, 35 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index d2b496750d59..4ddfa60c9222 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -2399,17 +2399,12 @@ static unsigned int n_tty_poll(struct tty_struct *tty, struct file *file, poll_wait(file, &tty->read_wait, wait); poll_wait(file, &tty->write_wait, wait); - if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) - mask |= POLLHUP; if (input_available_p(tty, 1)) mask |= POLLIN | POLLRDNORM; - else if (mask & POLLHUP) { - tty_flush_to_ldisc(tty); - if (input_available_p(tty, 1)) - mask |= POLLIN | POLLRDNORM; - } if (tty->packet && tty->link->ctrl_status) mask |= POLLPRI | POLLIN | POLLRDNORM; + if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) + mask |= POLLHUP; if (tty_hung_up_p(file)) mask |= POLLHUP; if (!(mask & (POLLHUP | POLLIN | POLLRDNORM))) { diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 31feeb2d0a66..d1f8dc6aabcb 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1815,7 +1815,7 @@ pci_wch_ch353_setup(struct serial_private *priv, } static int -pci_wch_ch382_setup(struct serial_private *priv, +pci_wch_ch38x_setup(struct serial_private *priv, const struct pciserial_board *board, struct uart_8250_port *port, int idx) { @@ -1880,6 +1880,7 @@ pci_wch_ch382_setup(struct serial_private *priv, #define PCIE_VENDOR_ID_WCH 0x1c00 #define PCIE_DEVICE_ID_WCH_CH382_2S1P 0x3250 +#define PCIE_DEVICE_ID_WCH_CH384_4S 0x3470 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */ #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584 0x1584 @@ -2571,13 +2572,21 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .subdevice = PCI_ANY_ID, .setup = pci_wch_ch353_setup, }, - /* WCH CH382 2S1P card (16750 clone) */ + /* WCH CH382 2S1P card (16850 clone) */ { .vendor = PCIE_VENDOR_ID_WCH, .device = PCIE_DEVICE_ID_WCH_CH382_2S1P, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, - .setup = pci_wch_ch382_setup, + .setup = pci_wch_ch38x_setup, + }, + /* WCH CH384 4S card (16850 clone) */ + { + .vendor = PCIE_VENDOR_ID_WCH, + .device = PCIE_DEVICE_ID_WCH_CH384_4S, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .setup = pci_wch_ch38x_setup, }, /* * ASIX devices with FIFO bug @@ -2876,6 +2885,7 @@ enum pci_board_num_t { pbn_fintek_4, pbn_fintek_8, pbn_fintek_12, + pbn_wch384_4, }; /* @@ -3675,6 +3685,14 @@ static struct pciserial_board pci_boards[] = { .base_baud = 115200, .first_offset = 0x40, }, + + [pbn_wch384_4] = { + .flags = FL_BASE0, + .num_ports = 4, + .base_baud = 115200, + .uart_offset = 8, + .first_offset = 0xC0, + }, }; static const struct pci_device_id blacklist[] = { @@ -3687,6 +3705,7 @@ static const struct pci_device_id blacklist[] = { { PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */ { PCI_DEVICE(0x4348, 0x5053), }, /* WCH CH353 1S1P */ { PCI_DEVICE(0x1c00, 0x3250), }, /* WCH CH382 2S1P */ + { PCI_DEVICE(0x1c00, 0x3470), }, /* WCH CH384 4S */ }; /* @@ -5400,6 +5419,10 @@ static struct pci_device_id serial_pci_tbl[] = { PCI_ANY_ID, PCI_ANY_ID, 0, 0, pbn_b0_bt_2_115200 }, + { PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S, + PCI_ANY_ID, PCI_ANY_ID, + 0, 0, pbn_wch384_4 }, + /* * Commtech, Inc. Fastcom adapters */ diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index 19273e31d224..107e80722575 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1757,32 +1757,43 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = { #endif #if defined(CONFIG_ARCH_EXYNOS) +#define EXYNOS_COMMON_SERIAL_DRV_DATA \ + .info = &(struct s3c24xx_uart_info) { \ + .name = "Samsung Exynos UART", \ + .type = PORT_S3C6400, \ + .has_divslot = 1, \ + .rx_fifomask = S5PV210_UFSTAT_RXMASK, \ + .rx_fifoshift = S5PV210_UFSTAT_RXSHIFT, \ + .rx_fifofull = S5PV210_UFSTAT_RXFULL, \ + .tx_fifofull = S5PV210_UFSTAT_TXFULL, \ + .tx_fifomask = S5PV210_UFSTAT_TXMASK, \ + .tx_fifoshift = S5PV210_UFSTAT_TXSHIFT, \ + .def_clk_sel = S3C2410_UCON_CLKSEL0, \ + .num_clks = 1, \ + .clksel_mask = 0, \ + .clksel_shift = 0, \ + }, \ + .def_cfg = &(struct s3c2410_uartcfg) { \ + .ucon = S5PV210_UCON_DEFAULT, \ + .ufcon = S5PV210_UFCON_DEFAULT, \ + .has_fracval = 1, \ + } \ + static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = { - .info = &(struct s3c24xx_uart_info) { - .name = "Samsung Exynos4 UART", - .type = PORT_S3C6400, - .has_divslot = 1, - .rx_fifomask = S5PV210_UFSTAT_RXMASK, - .rx_fifoshift = S5PV210_UFSTAT_RXSHIFT, - .rx_fifofull = S5PV210_UFSTAT_RXFULL, - .tx_fifofull = S5PV210_UFSTAT_TXFULL, - .tx_fifomask = S5PV210_UFSTAT_TXMASK, - .tx_fifoshift = S5PV210_UFSTAT_TXSHIFT, - .def_clk_sel = S3C2410_UCON_CLKSEL0, - .num_clks = 1, - .clksel_mask = 0, - .clksel_shift = 0, - }, - .def_cfg = &(struct s3c2410_uartcfg) { - .ucon = S5PV210_UCON_DEFAULT, - .ufcon = S5PV210_UFCON_DEFAULT, - .has_fracval = 1, - }, + EXYNOS_COMMON_SERIAL_DRV_DATA, .fifosize = { 256, 64, 16, 16 }, }; + +static struct s3c24xx_serial_drv_data exynos5433_serial_drv_data = { + EXYNOS_COMMON_SERIAL_DRV_DATA, + .fifosize = { 64, 256, 16, 256 }, +}; + #define EXYNOS4210_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos4210_serial_drv_data) +#define EXYNOS5433_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos5433_serial_drv_data) #else #define EXYNOS4210_SERIAL_DRV_DATA (kernel_ulong_t)NULL +#define EXYNOS5433_SERIAL_DRV_DATA (kernel_ulong_t)NULL #endif static struct platform_device_id s3c24xx_serial_driver_ids[] = { @@ -1804,6 +1815,9 @@ static struct platform_device_id s3c24xx_serial_driver_ids[] = { }, { .name = "exynos4210-uart", .driver_data = EXYNOS4210_SERIAL_DRV_DATA, + }, { + .name = "exynos5433-uart", + .driver_data = EXYNOS5433_SERIAL_DRV_DATA, }, { }, }; @@ -1823,6 +1837,8 @@ static const struct of_device_id s3c24xx_uart_dt_match[] = { .data = (void *)S5PV210_SERIAL_DRV_DATA }, { .compatible = "samsung,exynos4210-uart", .data = (void *)EXYNOS4210_SERIAL_DRV_DATA }, + { .compatible = "samsung,exynos5433-uart", + .data = (void *)EXYNOS5433_SERIAL_DRV_DATA }, {}, }; MODULE_DEVICE_TABLE(of, s3c24xx_uart_dt_match); diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c index 57ca61b14670..984605bb5bf1 100644 --- a/drivers/tty/serial/serial_core.c +++ b/drivers/tty/serial/serial_core.c @@ -2164,7 +2164,9 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port) break; } - dev_info(port->dev, "%s%d at %s (irq = %d, base_baud = %d) is a %s\n", + printk(KERN_INFO "%s%s%s%d at %s (irq = %d, base_baud = %d) is a %s\n", + port->dev ? dev_name(port->dev) : "", + port->dev ? ": " : "", drv->dev_name, drv->tty_driver->name_base + port->line, address, port->irq, port->uartclk / 16, uart_type(port)); diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index 4f35b43e2475..51f066aa375e 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1464,6 +1464,9 @@ static int tty_reopen(struct tty_struct *tty) driver->subtype == PTY_TYPE_MASTER) return -EIO; + if (test_bit(TTY_EXCLUSIVE, &tty->flags) && !capable(CAP_SYS_ADMIN)) + return -EBUSY; + tty->count++; WARN_ON(!tty->ldisc); @@ -2106,10 +2109,6 @@ retry_open: retval = -ENODEV; filp->f_flags = saved_flags; - if (!retval && test_bit(TTY_EXCLUSIVE, &tty->flags) && - !capable(CAP_SYS_ADMIN)) - retval = -EBUSY; - if (retval) { #ifdef TTY_DEBUG_HANGUP printk(KERN_DEBUG "%s: error %d in opening %s...\n", __func__, |