linux/drivers/serial, branch v2.6.27.40

8250_pci: add IBM Saturn serial card

2009-11-10T00:51:51Z

commit c68d2b1594548cda7f6dbac6a4d9d30a9b01558c upstream. The IBM Saturn serial card has only one port. Without that fixup, the kernel thinks it has two, which confuses userland setup and admin tools as well. [akpm@linux-foundation.org: fix pci-ids.h layout] Signed-off-by: Benjamin Herrenschmidt Acked-by: Alan Cox Cc: Michael Reed Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman

drivers/serial/mpc52xx_uart.c: fix array overindexing check

2009-06-12T03:01:24Z

commit b898f4f869da5b9d41f297fff87aca4cd42d80b3 upstream. The check for an overindexing of mpc52xx_uart_{ports,nodes} has an off-by-one. Signed-off-by: Roel Kluin Acked-by: Wolfram Sang Acked-by: Grant Likely Cc: Benjamin Herrenschmidt Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

icom: fix rmmod crash

2009-06-12T03:01:04Z

commit 95caa0a9bdaf93607bd0cc8932f53112496f2f22 upstream. Actually the icom driver is crashing when is being removed because the driver is kfreeing the adapter structure before calling pci_release_regions(), which result in the following error: Unable to handle kernel paging request for data at address 0x6b6b6b6b6b6b6d33 Faulting instruction address: 0xc000000000246b80 Oops: Kernel access of bad area, sig: 11 [#1] .... [c000000012d436a0] [c0000000001002d0] .kfree+0x120/0x34c (unreliable) [c000000012d43730] [c000000000246d60] .pci_release_selected_regions+0x3c/0x68 [c000000012d437c0] [d000000002d54700] .icom_kref_release+0xf4/0x118 [icom] [c000000012d43850] [c000000000232e50] .kref_put+0x74/0x94 [c000000012d438d0] [d000000002d56c58] .icom_remove+0x40/0xa4 [icom] [c000000012d43960] [c000000000249e48] .pci_device_remove+0x50/0x90 [c000000012d439e0] [c0000000002d68d8] .__device_release_driver+0x94/0xd4 [c000000012d43a70] [c0000000002d7104] .driver_detach+0xf8/0x12c [c000000012d43b00] [c0000000002d549c] .bus_remove_driver+0xbc/0x11c [c000000012d43b90] [c0000000002d71dc] .driver_unregister+0x60/0x80 [c000000012d43c20] [c00000000024a07c] .pci_unregister_driver+0x44/0xe8 [c000000012d43cb0] [d000000002d56bf4] .icom_exit+0x1c/0x40 [icom] [c000000012d43d30] [c000000000095fa8] .SyS_delete_module+0x214/0x2a8 [c000000012d43e30] [c00000000000852c] syscall_exit+0x0/0x40 Signed-off-by: Breno Leitao Cc: Alan Cox Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

powerpc/5200: Don't specify IRQF_SHARED in PSC UART driver

2009-05-20T05:20:14Z

commit d9f0c5f9bc74f16d0ea0f6c518b209e48783a796 upstream. The MPC5200 PSC device is wired up to a dedicated interrupt line which is never shared. This patch removes the IRQF_SHARED flag from the request_irq() call which eliminates the "IRQF_DISABLED is not guaranteed on shared IRQs" warning message from the console output. Signed-off-by: Grant Likely Reviewed-by: Wolfram Sang Signed-off-by: Greg Kroah-Hartman

jsm: additional device support

2009-03-17T00:52:53Z

commit ffa7525c13eb3db0fd19a3e1cffe2ce6f561f5f3 upstream. I have a Digi Neo 8 PCI card (114f:00b1) Serial controller: Digi International Digi Neo 8 (rev 05) that works with the jsm driver after using the following patch. Signed-off-by: Adam Lackorzynski Cc: Scott H Kilau Cc: Wendy Xiong Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

8250: fix boot hang with serial console when using with Serial Over Lan port

2009-03-17T00:52:48Z

commit b6adea334c6c89d5e6c94f9196bbf3a279cb53bd upstream. Intel 8257x Ethernet boards have a feature called Serial Over Lan. This feature works by emulating a serial port, and it is detected by kernel as a normal 8250 port. However, this emulation is not perfect, as also noticed on changeset 7500b1f602aad75901774a67a687ee985d85893f. Before this patch, the kernel were trying to check if the serial TX is capable of work using IRQ's. This were done with a code similar this: serial_outp(up, UART_IER, UART_IER_THRI); lsr = serial_in(up, UART_LSR); iir = serial_in(up, UART_IIR); serial_outp(up, UART_IER, 0); if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) up->bugs |= UART_BUG_TXEN; This works fine for other 8250 ports, but, on 8250-emulated SoL port, the chip is a little lazy to down UART_IIR_NO_INT at UART_IIR register. Due to that, UART_BUG_TXEN is sometimes enabled. However, as TX IRQ keeps working, and the TX polling is now enabled, the driver miss-interprets the IRQ received later, hanging up the machine until a key is pressed at the serial console. This is the 6 version of this patch. Previous versions were trying to introduce a large enough delay between serial_outp and serial_in(up, UART_IIR), but not taking forever. However, the needed delay couldn't be safely determined. At the experimental tests, a delay of 1us solves most of the cases, but still hangs sometimes. Increasing the delay to 5us was better, but still doesn't solve. A very high delay of 50 ms seemed to work every time. However, poking around with delays and pray for it to be enough doesn't seem to be a good approach, even for a quirk. So, instead of playing with random large arbitrary delays, let's just disable UART_BUG_TXEN for all SoL ports. [akpm@linux-foundation.org: fix warnings] Signed-off-by: Mauro Carvalho Chehab Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

serial: set correct baud_base for Oxford Semiconductor Ltd EXSYS EX-41092 Dual 16950 Serial adapter

2009-02-12T17:31:11Z

commit 39aced68d664291db3324d0fcf0985ab5626aac2 upstream. The PCI-card identified as "Oxford Semiconductor Ltd EXSYS EX-41092 Dual 16950 Serial adapter" is only usable with other devices (i.e. not the same card) after doing a "setserial /dev/ttyS baud_base 115200". This baud_base should be default for this card. Signed-off-by: Niels de Vos Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

Add support for '8-port RS-232 MIC-3620 from advantech'

2009-02-12T17:31:09Z

commit 78d70d48132ce4c678a95b771ffa1af4fb5a03ec upstream. This Patch add the device information for the MIC-3620 8-port RS-232 cPCI card from Advantech Co. Ltd. Signed-off-by: Michael Bramer Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

8250_pci: add support for netmos 9835 IBM devices

2009-02-12T17:31:05Z

commit 25cf9bc1fcb085daaeb82b09bab0fb3c40570887 upstream. Most of netmos 9835 hardware is handled by parport-serial. IBM introduces a device which doesn't have any parallel ports and have screwed subdevice PCI id (not corresponding to port numbers). Handle this device (9710:9835 1014:0299) properly. Signed-off-by: Jiri Slaby Signed-off-by: Andrew Morton Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

Add enable_ms to jsm driver

2009-02-06T22:00:35Z

commit 0461ec5bc7745b89a8ab67ba0ea497abd58a6301 upstream. This fixes a crash observed when non-existant enable_ms function is called for jsm driver. Signed-off-by: Scott Kilau Signed-off-by: Paul Larson Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman