linux-toradex.git/drivers/serial, branch v2.6.32.8

uartlite: fix crash when using as console

2010-02-09T12:51:01+00:00

commit 03eac7bb882a75e6ee5705288f7ec36ad2e7d0d5 upstream.

Move the ulite_console_setup to the .devinit section since it might be
called on probe, which is in devinit.  Fixes the crash below where the
uartlite hw is probed after the .init section is freed from the kernel.

uartlite: ttyUL0 at MMIO 0xc8000100 (irq = 30) is a uartlite
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [] ulite_console_setup+0x6f/0xa8
*pdpt = 0000000036fb0001 *pde = 0000000000000000
Oops: 0000 [#1] PREEMPT SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:1f.1/host0/uevent
Modules linked in: puffin(+) serio_raw

Pid: 151, comm: modprobe Not tainted (2.6.31.5-1.0.b1-b1 #1) POULSBO
EIP: 0060:[] EFLAGS: 00010246 CPU: 0
EIP is at ulite_console_setup+0x6f/0xa8
EAX: c16ec824 EBX: c16ec824 ECX: c176719f EDX: 00000000
ESI: 00000000 EDI: c17b42c4 EBP: f6fd1cf0 ESP: f6fd1cd8
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process modprobe (pid: 151, ti=f6fd0000 task=f6fa1020 task.ti=f6fd0000)
Stack:
 c1031f51 00000000 00000000 00000246 c182237c f7742000 f6fd1d5c c11fd316
<0> c16ec85c f77420d4 0000001e 00000000 00000000 c1633e78 4f494d4d 63783020
<0> 30303038 00303031 f6fd1d3c c10e0786 f6fd1d48 00000000 f6fd1d48 00000000
Call Trace:
 [] ? register_console+0xf6/0x1fc
 [] ? uart_add_one_port+0x237/0x2bb
 [] ? sysfs_add_one+0x13/0xd3
 [] ? sysfs_do_create_link+0xba/0xfc
 [] ? ulite_probe+0x198/0x1eb
 [] ? platform_drv_probe+0xc/0xe
 [] ? driver_probe_device+0x79/0x105
 [] ? __device_attach+0x28/0x30
 [] ? bus_for_each_drv+0x3d/0x67
 [] ? device_attach+0x44/0x58
 [] ? __device_attach+0x0/0x30
 [] ? bus_probe_device+0x1f/0x34
 [] ? device_add+0x385/0x4c0
 [] ? _write_unlock+0x8/0x1f
 [] ? platform_device_add+0xd9/0x11c
 [] ? mfd_add_devices+0x165/0x1bc
 [] ? puffin_probe+0x2d0/0x390 [puffin]
 [] ? pci_match_device+0xa0/0xa7
 [] ? local_pci_probe+0xe/0x10
 [] ? pci_device_probe+0x43/0x66
 [] ? driver_probe_device+0x79/0x105
 [] ? __driver_attach+0x43/0x5f
 [] ? bus_for_each_dev+0x3d/0x67
 [] ? driver_attach+0x14/0x16
 [] ? __driver_attach+0x0/0x5f
 [] ? bus_add_driver+0xf9/0x220
 [] ? driver_register+0x8b/0xeb
 [] ? __pci_register_driver+0x43/0x9f
 [] ? __blocking_notifier_call_chain+0x40/0x4c
 [] ? puffin_init+0x0/0x48 [puffin]
 [] ? puffin_init+0x17/0x48 [puffin]
 [] ? do_one_initcall+0x4c/0x131
 [] ? sys_init_module+0xa7/0x1b7
 [] ? syscall_call+0x7/0xb
 Code: 6e 74 00 00 00 92 33 00 00 18 00 0e 01 73 79 6e 63 65 2d 72 65 67 69 73 74 72 79 0c 00 49 32
00 00 14 00 09 01 61 6c 73 61 2d 69 <6e> 66 6f 00 00 00 42 37 00 00 10 00 07 01 6b 69 6c 6c 61 6c 6c
EIP: [] ulite_console_setup+0x6f/0xa8 SS:ESP 0068:f6fd1cd8
CR2: 0000000000000000

Signed-off-by: Richard Röjfors 
Acked-by: Peter Korsgaard 
Cc: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

serial: 8250_pnp: use wildcard for serial Wacom tablets

2010-01-25T18:49:24+00:00

commit 6d34855d9aa281f72c533ecb827405139d1b0fe9 upstream.

Wacom claims that the WACF namespace will always be devoted to serial
Wacom tablets.  Remove the existing entries and add a wildcard to avoid
having to update the kernel every time they add a new device.

Signed-off-by: Ping Cheng 
Signed-off-by: Matthew Garrett 
Tested-by: Ping Cheng 
Cc: Alan Cox 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

serial/8250_pnp: add a new Fujitsu Wacom Tablet PC device

2010-01-22T23:18:39+00:00

commit 3018aa4b1a46946dfd0ee73a533038f24e390539 upstream.

This is a new two finger touch Fujitsu Wacom Tablet PC.

Signed-off-by: Ping Cheng 
Cc: Alan Cox 
Cc: Dmitry Torokhov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

Serial: Do not read IIR in serial8250_start_tx when UART_BUG_TXEN

2009-12-18T22:04:18+00:00

commit 68cb4f8e246bbbc649980be0628cae9265870a91 upstream.

Do not read IIR in serial8250_start_tx when UART_BUG_TXEN

Reading the IIR clears some oustanding interrupts so it is not safe.
Instead, simply transmit immediately if the buffer is empty without
regard to IIR.

Signed-off-by: Ian Jackson 
Reviewed-by: Markus Armbruster 
Reviewed-by: Jiri Kosina 
Cc: Alan Cox 
Signed-off-by: Greg Kroah-Hartman

tty/of_serial: add missing ns16550a id

2009-12-01T00:38:44+00:00

Many boards have a bug-free ns16550 compatible serial port, which we should
register as PORT_16550A. This introduces a new value "ns16550a" for the
compatible property of of_serial to let a firmware choose that model instead
of using the crippled PORT_16550 mode.

Reported-by: Alon Ziv 
Signed-off-by: Michal Simek 
Signed-off-by: Arnd Bergmann 
Signed-off-by: Greg Kroah-Hartman

bcm63xx_uart: Fix serial driver compile breakage.

2009-12-01T00:38:32+00:00

The driver missed a small API change while sitting in Ralf's tree, this
patch makes it compile again.

Signed-off-by: Maxime Bizon 
Signed-off-by: Greg Kroah-Hartman

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

2009-11-30T22:02:23+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sunsu: Use sunserial_console_termios() in sunsu_console_setup().
  sunsu: Pass true 'ignore_line' to console match when RSC or LOM console.
  serial: suncore: Fix RSC/LOM handling in sunserial_console_termios().
  serial: suncore: Add 'ignore_line' argument to sunserial_console_match().
  sunsu: Fix detection of SU ports which are RSC console or control.
  sunsab: Do not set sunsab_reg.cons right before registering minors.
  sparc64: Fix definition of VMEMMAP_SIZE.

sunsu: Use sunserial_console_termios() in sunsu_console_setup().

2009-11-24T22:12:50+00:00

Be like the other Sun serial drivers otherwise the special handling of
OpenFirmware options and hard-coded overrides for LOM/RSC consoles
will not be handled.

Signed-off-by: David S. Miller

sunsu: Pass true 'ignore_line' to console match when RSC or LOM console.

2009-11-24T22:11:40+00:00

Signed-off-by: David S. Miller

serial: suncore: Fix RSC/LOM handling in sunserial_console_termios().

2009-11-24T22:09:56+00:00

RSC and LOM devices have fixed speed settings.

We already had some code to match and handle "rsc" named devices on
E250 systems, but we also have to handle 'rsc-console', 'rsc-control',
and 'lom-console'.

Also, in order to get this right regardless of what 'output-device'
happens to be, explicitly pass the UART device node pointer to this
routine.

Signed-off-by: David S. Miller