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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-12 15:36:33 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-12 15:36:33 -0700 |
commit | f4f9c1ac78c5c20150f03c370c2bd7eca44f5127 (patch) | |
tree | 92719848d035ddf5233a297dabb587f95652a975 | |
parent | 3dbc35a339d7c8c756cb159b9ba076fac4e7faeb (diff) | |
parent | 11bbd5b6dae49fd7072ebf5eb63735827bd72f42 (diff) | |
download | linux-3.10-f4f9c1ac78c5c20150f03c370c2bd7eca44f5127.tar.gz linux-3.10-f4f9c1ac78c5c20150f03c370c2bd7eca44f5127.tar.bz2 linux-3.10-f4f9c1ac78c5c20150f03c370c2bd7eca44f5127.zip |
Merge tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty and serial fixes from Greg KH:
"Here are some tty and serial fixes for 3.4-rc2.
Most important here is the pl011 fix, which has been reported by about
100 different people, which means more people use it than I expected
:)
There are also some 8250 driver reverts due to some problems reported
by them. And other minor fixes as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
pch_uart: Add Kontron COMe-mTT10 uart clock quirk
pch_uart: Fix MSI setting issue
serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port
Revert "serial/8250_pci: setup-quirk workaround for the kt serial controller"
Revert "serial/8250_pci: init-quirk msi support for kt serial controller"
tty/serial/omap: console can only be built-in
serial: samsung: fix omission initialize ulcon in reset port fn()
printk(): add KERN_CONT where needed in hpet and vt code
tty/serial: atmel_serial: fix RS485 half-duplex problem
tty: serial: altera_uart: Check for NULL platform_data in probe.
isdn/gigaset: use gig_dbg() for debugging output
omap-serial: Fix the error handling in the omap_serial probe
serial: PL011: move interrupt clearing
-rw-r--r-- | drivers/char/hpet.c | 4 | ||||
-rw-r--r-- | drivers/isdn/gigaset/interface.c | 2 | ||||
-rw-r--r-- | drivers/tty/serial/8250/8250.c | 12 | ||||
-rw-r--r-- | drivers/tty/serial/8250/8250_pci.c | 16 | ||||
-rw-r--r-- | drivers/tty/serial/Kconfig | 2 | ||||
-rw-r--r-- | drivers/tty/serial/altera_uart.c | 4 | ||||
-rw-r--r-- | drivers/tty/serial/amba-pl011.c | 8 | ||||
-rw-r--r-- | drivers/tty/serial/atmel_serial.c | 4 | ||||
-rw-r--r-- | drivers/tty/serial/omap-serial.c | 43 | ||||
-rw-r--r-- | drivers/tty/serial/pch_uart.c | 8 | ||||
-rw-r--r-- | drivers/tty/serial/samsung.c | 1 | ||||
-rw-r--r-- | drivers/tty/vt/vt.c | 3 | ||||
-rw-r--r-- | include/linux/serial_core.h | 2 |
13 files changed, 52 insertions, 57 deletions
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 3845ab44c33..dfd7876f127 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -906,8 +906,8 @@ int hpet_alloc(struct hpet_data *hdp) hpetp->hp_which, hdp->hd_phys_address, hpetp->hp_ntimer > 1 ? "s" : ""); for (i = 0; i < hpetp->hp_ntimer; i++) - printk("%s %d", i > 0 ? "," : "", hdp->hd_irq[i]); - printk("\n"); + printk(KERN_CONT "%s %d", i > 0 ? "," : "", hdp->hd_irq[i]); + printk(KERN_CONT "\n"); temp = hpetp->hp_tick_freq; remainder = do_div(temp, 1000000); diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c index b3d6ac17272..a6d9fd2858f 100644 --- a/drivers/isdn/gigaset/interface.c +++ b/drivers/isdn/gigaset/interface.c @@ -176,7 +176,7 @@ static void if_close(struct tty_struct *tty, struct file *filp) struct cardstate *cs = tty->driver_data; if (!cs) { /* happens if we didn't find cs in open */ - printk(KERN_DEBUG "%s: no cardstate\n", __func__); + gig_dbg(DEBUG_IF, "%s: no cardstate", __func__); return; } diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 5b149b466ec..5c27f7e6c9f 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -1572,13 +1572,11 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id) do { struct uart_8250_port *up; struct uart_port *port; - bool skip; up = list_entry(l, struct uart_8250_port, list); port = &up->port; - skip = pass_counter && up->port.flags & UPF_IIR_ONCE; - if (!skip && port->handle_irq(port)) { + if (port->handle_irq(port)) { handled = 1; end = NULL; } else if (end == NULL) @@ -2037,10 +2035,12 @@ static int serial8250_startup(struct uart_port *port) spin_unlock_irqrestore(&port->lock, flags); /* - * If the interrupt is not reasserted, setup a timer to - * kick the UART on a regular basis. + * If the interrupt is not reasserted, or we otherwise + * don't trust the iir, setup a timer to kick the UART + * on a regular basis. */ - if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) { + if ((!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) || + up->port.flags & UPF_BUG_THRE) { up->bugs |= UART_BUG_THRE; pr_debug("ttyS%d - using backup timer\n", serial_index(port)); diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index da2b0b0a183..858dca865d6 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -1096,7 +1096,7 @@ static int kt_serial_setup(struct serial_private *priv, const struct pciserial_board *board, struct uart_port *port, int idx) { - port->flags |= UPF_IIR_ONCE; + port->flags |= UPF_BUG_THRE; return skip_tx_en_setup(priv, board, port, idx); } @@ -1118,18 +1118,6 @@ pci_xr17c154_setup(struct serial_private *priv, return pci_default_setup(priv, board, port, idx); } -static int try_enable_msi(struct pci_dev *dev) -{ - /* use msi if available, but fallback to legacy otherwise */ - pci_enable_msi(dev); - return 0; -} - -static void disable_msi(struct pci_dev *dev) -{ - pci_disable_msi(dev); -} - #define PCI_VENDOR_ID_SBSMODULARIO 0x124B #define PCI_SUBVENDOR_ID_SBSMODULARIO 0x124B #define PCI_DEVICE_ID_OCTPRO 0x0001 @@ -1249,9 +1237,7 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = { .device = PCI_DEVICE_ID_INTEL_PATSBURG_KT, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, - .init = try_enable_msi, .setup = kt_serial_setup, - .exit = disable_msi, }, /* * ITE diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 665beb68f67..070b442c1f8 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -1041,7 +1041,7 @@ config SERIAL_OMAP config SERIAL_OMAP_CONSOLE bool "Console on OMAP serial port" - depends on SERIAL_OMAP + depends on SERIAL_OMAP=y select SERIAL_CORE_CONSOLE help Select this option if you would like to use omap serial port as diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c index e7903751e05..1f0330915d5 100644 --- a/drivers/tty/serial/altera_uart.c +++ b/drivers/tty/serial/altera_uart.c @@ -556,7 +556,7 @@ 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; @@ -564,7 +564,7 @@ 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 0c65c9e6698..3d569cd68f5 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1946,10 +1946,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) goto unmap; } - /* Ensure interrupts from this UART are masked and cleared */ - writew(0, uap->port.membase + UART011_IMSC); - writew(0xffff, uap->port.membase + UART011_ICR); - uap->vendor = vendor; uap->lcrh_rx = vendor->lcrh_rx; uap->lcrh_tx = vendor->lcrh_tx; @@ -1967,6 +1963,10 @@ 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 f9a6be7a9be..3d7e1ee2fa5 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -389,6 +389,8 @@ static void atmel_start_rx(struct uart_port *port) { UART_PUT_CR(port, ATMEL_US_RSTSTA); /* reset status and receiver */ + UART_PUT_CR(port, ATMEL_US_RXEN); + if (atmel_use_dma_rx(port)) { /* enable PDC controller */ UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | @@ -404,6 +406,8 @@ static void atmel_start_rx(struct uart_port *port) */ static void atmel_stop_rx(struct uart_port *port) { + UART_PUT_CR(port, ATMEL_US_RXDIS); + if (atmel_use_dma_rx(port)) { /* disable PDC receive */ UART_PUT_PTCR(port, ATMEL_PDC_RXTDIS); diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c index 0121486ac4f..d00b38eb268 100644 --- a/drivers/tty/serial/omap-serial.c +++ b/drivers/tty/serial/omap-serial.c @@ -1381,29 +1381,24 @@ static int serial_omap_probe(struct platform_device *pdev) return -ENODEV; } - if (!request_mem_region(mem->start, resource_size(mem), + if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem), pdev->dev.driver->name)) { dev_err(&pdev->dev, "memory region already claimed\n"); return -EBUSY; } dma_rx = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx"); - if (!dma_rx) { - ret = -EINVAL; - goto err; - } + if (!dma_rx) + return -ENXIO; dma_tx = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); - if (!dma_tx) { - ret = -EINVAL; - goto err; - } + if (!dma_tx) + return -ENXIO; + + up = devm_kzalloc(&pdev->dev, sizeof(*up), GFP_KERNEL); + if (!up) + return -ENOMEM; - up = kzalloc(sizeof(*up), GFP_KERNEL); - if (up == NULL) { - ret = -ENOMEM; - goto do_release_region; - } up->pdev = pdev; up->port.dev = &pdev->dev; up->port.type = PORT_OMAP; @@ -1423,16 +1418,17 @@ static int serial_omap_probe(struct platform_device *pdev) dev_err(&pdev->dev, "failed to get alias/pdev id, errno %d\n", up->port.line); ret = -ENODEV; - goto err; + goto err_port_line; } sprintf(up->name, "OMAP UART%d", up->port.line); up->port.mapbase = mem->start; - up->port.membase = ioremap(mem->start, resource_size(mem)); + up->port.membase = devm_ioremap(&pdev->dev, mem->start, + resource_size(mem)); if (!up->port.membase) { dev_err(&pdev->dev, "can't ioremap UART\n"); ret = -ENOMEM; - goto err; + goto err_ioremap; } up->port.flags = omap_up_info->flags; @@ -1478,16 +1474,19 @@ static int serial_omap_probe(struct platform_device *pdev) ret = uart_add_one_port(&serial_omap_reg, &up->port); if (ret != 0) - goto do_release_region; + goto err_add_port; pm_runtime_put(&pdev->dev); platform_set_drvdata(pdev, up); return 0; -err: + +err_add_port: + pm_runtime_put(&pdev->dev); + pm_runtime_disable(&pdev->dev); +err_ioremap: +err_port_line: dev_err(&pdev->dev, "[UART%d]: failure [%s]: %d\n", pdev->id, __func__, ret); -do_release_region: - release_mem_region(mem->start, resource_size(mem)); return ret; } @@ -1499,8 +1498,6 @@ static int serial_omap_remove(struct platform_device *dev) pm_runtime_disable(&up->pdev->dev); uart_remove_one_port(&serial_omap_reg, &up->port); pm_qos_remove_request(&up->pm_qos_request); - - kfree(up); } platform_set_drvdata(dev, NULL); diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index 08b9962b8fd..bbbec4a74cf 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -210,6 +210,7 @@ enum { #define CMITC_UARTCLK 192000000 /* 192.0000 MHz */ #define FRI2_64_UARTCLK 64000000 /* 64.0000 MHz */ #define FRI2_48_UARTCLK 48000000 /* 48.0000 MHz */ +#define NTC1_UARTCLK 64000000 /* 64.0000 MHz */ struct pch_uart_buffer { unsigned char *buf; @@ -384,6 +385,12 @@ static int pch_uart_get_uartclk(void) if (cmp && strstr(cmp, "Fish River Island II")) return FRI2_48_UARTCLK; + /* Kontron COMe-mTT10 (nanoETXexpress-TT) */ + cmp = dmi_get_system_info(DMI_BOARD_NAME); + if (cmp && (strstr(cmp, "COMe-mTT") || + strstr(cmp, "nanoETXexpress-TT"))) + return NTC1_UARTCLK; + return DEFAULT_UARTCLK; } @@ -1651,6 +1658,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev, } pci_enable_msi(pdev); + pci_set_master(pdev); iobase = pci_resource_start(pdev, 0); mapbase = pci_resource_start(pdev, 1); diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index de249d265be..d8b0aee3563 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -982,6 +982,7 @@ 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/vt/vt.c b/drivers/tty/vt/vt.c index 3bdd4b19dd0..2156188db4a 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -2932,11 +2932,10 @@ static int __init con_init(void) gotoxy(vc, vc->vc_x, vc->vc_y); csi_J(vc, 0); update_screen(vc); - pr_info("Console: %s %s %dx%d", + pr_info("Console: %s %s %dx%d\n", vc->vc_can_do_color ? "colour" : "mono", display_desc, vc->vc_cols, vc->vc_rows); printable = 1; - printk("\n"); console_unlock(); diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index f51bf2e70c6..2db407a4005 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -357,7 +357,7 @@ struct uart_port { #define UPF_CONS_FLOW ((__force upf_t) (1 << 23)) #define UPF_SHARE_IRQ ((__force upf_t) (1 << 24)) #define UPF_EXAR_EFR ((__force upf_t) (1 << 25)) -#define UPF_IIR_ONCE ((__force upf_t) (1 << 26)) +#define UPF_BUG_THRE ((__force upf_t) (1 << 26)) /* The exact UART type is known and should not be probed. */ #define UPF_FIXED_TYPE ((__force upf_t) (1 << 27)) #define UPF_BOOT_AUTOCONF ((__force upf_t) (1 << 28)) |