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276,794 commits

Author SHA1 Message Date
Timur Tabi
dcd83aaff1 tty/powerpc: introduce the ePAPR embedded hypervisor byte channel driver
The ePAPR embedded hypervisor specification provides an API for "byte
channels", which are serial-like virtual devices for sending and receiving
streams of bytes.  This driver provides Linux kernel support for byte
channels via three distinct interfaces:

1) An early-console (udbg) driver.  This provides early console output
through a byte channel.  The byte channel handle must be specified in a
Kconfig option.

2) A normal console driver.  Output is sent to the byte channel designated
for stdout in the device tree.  The console driver is for handling kernel
printk calls.

3) A tty driver, which is used to handle user-space input and output.  The
byte channel used for the console is designated as the default tty.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:32:56 -07:00
Jiri Slaby
0055197e98 TTY: serial, document ignoring of uart->ops->startup error
When a user has SYS_ADMIN capabilities and uart->ops->startup returns
an error in uart_startup, we silently drop the error. We then return 0
and behave as if it didn't fail. (Not quite, since we set TTY_IO_ERROR
bit and leave ASYNC_INITIALIZED bit cleared.)

This all is to allow setserial to work with improperly configured or
unconfigured ports. User can thus set port properties and reconfigure
properly.

This patch only documents this behavior.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russel King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:10:38 -07:00
Jiri Slaby
24d406a6bf TTY: pty, fix pty counting
tty_operations->remove is normally called like:
queue_release_one_tty
 ->tty_shutdown
   ->tty_driver_remove_tty
     ->tty_operations->remove

However tty_shutdown() is called from queue_release_one_tty() only if
tty_operations->shutdown is NULL. But for pty, it is not.
pty_unix98_shutdown() is used there as ->shutdown.

So tty_operations->remove of pty (i.e. pty_unix98_remove()) is never
called. This results in invalid pty_count. I.e. what can be seen in
/proc/sys/kernel/pty/nr.

I see this was already reported at:
  https://lkml.org/lkml/2009/11/5/370
But it was not fixed since then.

This patch is kind of a hackish way. The problem lies in ->install. We
allocate there another tty (so-called tty->link). So ->install is
called once, but ->remove twice, for both tty and tty->link. The fix
here is to count both tty and tty->link and divide the count by 2 for
user.

And to have ->remove called, let's make tty_driver_remove_tty() global
and call that from pty_unix98_shutdown() (tty_operations->shutdown).

While at it, let's document that when ->shutdown is defined,
tty_shutdown() is not called.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:10:38 -07:00
Al Cooper
dbb3b1ca56 8250: Fix race condition in serial8250_backup_timeout().
This is to fix an issue where output will suddenly become very slow.
The problem occurs on 8250 UARTS with the hardware bug UART_BUG_THRE.

BACKGROUND
For normal UARTs (without UART_BUG_THRE): When the serial core layer
gets new transmit data and the transmitter is idle, it buffers the
data and calls the 8250s' serial8250_start_tx() routine which will
simply enable the TX interrupt in the IER register and return. This
should immediately fire a THRE interrupt and begin transmitting the
data.
For buggy UARTs (with UART_BUG_THRE): merely enabling the TX interrupt
in IER does not necessarily generate a new THRE interrupt.
Therefore, a background timer periodically checks to see if there is
pending data, and starts transmission if that is the case.

The bug happens on SMP systems when the system has nothing to transmit,
the transmit interrupt is disabled and the following sequence occurs:
- CPU0: The background timer routine serial8250_backup_timeout()
  starts and saves the state of the interrupt enable register (IER)
  and then disables all interrupts in IER. NOTE: The transmit interrupt
  (TI) bit is saved as disabled.
- CPU1: The serial core gets data to transmit, grabs the port lock and
  calls serial8250_start_tx() which enables the TI in IER.
- CPU0: serial8250_backup_timeout() waits for the port lock.
- CPU1: finishes (with TI enabled) and releases the port lock.
- CPU0: serial8250_backup_timeout() calls the interrupt routine which
  will transmit the next fifo's worth of data and then restores the
  IER from the previously saved value (TI disabled).
At this point, as long as the serial core has more transmit data
buffered, it will not call serial8250_start_tx() again and the
background timer routine will slowly transmit the data.

The fix is to have serial8250_start_tx() get the port lock before
it saves the IER state and release it after restoring IER. This will
prevent serial8250_start_tx() from running in parallel.

Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:10:37 -07:00
Tomoya MORINAGA
dacacc3e79 serial/8250_pci: delete duplicate data definition
Data definiton "VendorID=10DB, device_id=800D" is already defined.
This patch deletes the duplicate definition.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:06:28 -07:00
Eric Smith
44178176ec 8250_pci: add support for Rosewill RC-305 4x serial port card
This patch adds support for the Rosewill RC-305 four-port PCI serial
card, and probably any other four-port serial cards based on the
Moschip MCS9865 chip, assuming that the EEPROM on the card was
programmed in accordance with Table 6 of the MCS9865 EEPROM
Application Note version 0.3 dated 16-May-2008, available from the
Moschip web site (registration required).

This patch is based on an earlier patch [1] for the SYBA 6x serial
port card by Ira W. Snyder.

[1]: http://www.gossamer-threads.com/lists/linux/kernel/1162435

Signed-off-by: Eric Smith <eric@brouhaha.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:05:10 -07:00
Axel Lin
8c4074cd22 tty: Add "spi:" prefix for spi modalias
Since commit e0626e38 (spi: prefix modalias with "spi:"),
the spi modalias is prefixed with "spi:".

This patch adds "spi:" prefix and removes "-spi" suffix in the modalias.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 10:02:01 -07:00
Kuninori Morimoto
29cc88979a USB: use usb_endpoint_maxp() instead of le16_to_cpu()
Now ${LINUX}/drivers/usb/* can use usb_endpoint_maxp(desc) to get maximum packet size
instead of le16_to_cpu(desc->wMaxPacketSize).
This patch fix it up

Cc: Armin Fuerst <fuerst@in.tum.de>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Johannes Erdfelt <johannes@erdfelt.com>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: David Kubicek <dave@awk.cz>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: Brad Hards <bhards@bigpond.net.au>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de>
Cc: David Brownell <david-b@pacbell.net>
Cc: David Lopo <dlopo@chipidea.mips.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Xie Xiaobo <X.Xie@freescale.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Jiang Bo <tanya.jiang@freescale.com>
Cc: Yuan-hsin Chen <yhchen@faraday-tech.com>
Cc: Darius Augulis <augulis.darius@gmail.com>
Cc: Xiaochen Shen <xiaochen.shen@intel.com>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Herbert Pötzl <herbert@13thfloor.at>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Roman Weissgaerber <weissg@vienna.at>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Tony Olech <tony.olech@elandigitalsystems.com>
Cc: Florian Floe Echtler <echtler@fs.tum.de>
Cc: Christian Lucht <lucht@codemercs.com>
Cc: Juergen Stuber <starblue@sourceforge.net>
Cc: Georges Toth <g.toth@e-biz.lu>
Cc: Bill Ryder <bryder@sgi.com>
Cc: Kuba Ober <kuba@mareimbrium.org>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 09:47:40 -07:00
Stephen Rothwell
46a57283e8 usb: include module.h in the DesignWare USB3 DRD driver
Fixes this build error:

drivers/usb/dwc3/dwc3-pci.c: In function 'dwc3_pci_init':
drivers/usb/dwc3/dwc3-pci.c:211:9: error: 'THIS_MODULE' undeclared (first use in this function)

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 09:47:40 -07:00
Sebastian Andrzej Siewior
7c79d09435 USB: usbtest: use URB_ZERO_PACKET for BULK-OUT transfers
Executing
| testusb -a -c 1 -t 3 -v 421 -s 2048

does not complete on the gadget side.
g_zero enqueues a 4096 bytes long buffer. The host sends 2048bytes which
is a multiple of wMaxPacketSize (either 64 or 512 bytes). The host is
done with sending data but the gadget waits for more.
Since the protocol does not include transfer-length-field sending a
terminating zero packet seems the only way out.

Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 09:47:39 -07:00
Joakim Tjernlund
39eb4ed556 usb: fhci-hcd: Allocate pram dynamically.
MPC832x does not have enough MURAM to do fixed MURAM allocation.
Change to dynamic allocation.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-08-23 09:47:39 -07:00
Takashi Iwai
a4297b5db0 ALSA: hda - Rewrite ALC269 laptop-amic,dmic,&co quirks with fixups
Similarly like ALC662 asus-mode* models, rewrite the laptop-amic and
dmic models with the static pin-config tables.

Now we can get rid of all alc269_quirks.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 18:40:12 +02:00
Takashi Iwai
53c334add1 ALSA: hda - Rewrite ALC662 asus-mode* models with fixups
Re-implement the asus-mode[1-8] quirks with the pin-config tables.
They are provided in case where BIOS is broken on the device, so it's
not enabled in PCI SSID lookup table.  User needs to specify it via model
option explicitly if the driver doesn't work with the BIOS setup as is.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 18:27:14 +02:00
Takashi Iwai
e23832ac15 ALSA: hda - Support multiple headphones in Realtek auto-parser
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 18:16:56 +02:00
Takashi Iwai
a06dbfc2cf ALSA: hda - Add multi-headphone NIDs in multiout struct
For supporting both the multiple headphones and the multiple speakers,
add the new field in struct hda_multi_out, and evaluate in the standard
setup functions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 18:16:13 +02:00
Takashi Iwai
cb4e482415 ALSA: hda - Remove all ALC861 and ALC861-VD quirks
Let's remove the rest of ALC861 and ALC861-VD quirks.
If any breakage is found, it can be fixed easily via the pin-config
table update.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 17:34:25 +02:00
Takashi Iwai
8fdcb6fe42 ALSA: hda - Restore VREF50 setup for ALC861-VD dallas/hp models
During the cleanup by commit 6727b12669,
the specific setups for dallas and hp models, using VREF50 for mic pins,
were lost.  Fixed now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 17:28:55 +02:00
Catalin Marinas
e73fc88e19 ARM: 7059/1: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_*
PGDIR_SHIFT and PMD_SHIFT for the classic 2-level page table format have
the same value (21). This patch converts the PGDIR_* uses in the kernel
to the PMD_* equivalent so that LPAE builds can reuse the same code.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-23 15:30:33 +01:00
Catalin Marinas
01f461a3a4 ARM: 7058/1: LPAE: Cast the dma_addr_t argument to unsigned long in dma_to_virt
This is to avoid a compiler warning when invoking the __bus_to_virt()
macro. The dma_to_virt() function gets addresses within the 32-bit
range.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-23 15:30:33 +01:00
Linus Walleij
a1e6b41e8e ARM: 7057/1: mach-pnx4008: rename GPIO header
The PNX4008 header file is using the generic gpio and gpiolib
namespace in <mach/gpio.h> yet the GPIO interface is not generic
at all so rename it to <mach/gpio-pnx4008.h>

This fixes a build failure in current -next: the includes were
changed from <mach/gpio.h> to <linux/gpio.h> but since this
platform isn't using generic gpio <linux/gpio.h> did not include
<mach/gpio.h> and things broke apart.

Acked-by: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-23 15:30:04 +01:00
Linus Walleij
94117cb8db ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h>
After recent consolidations the Nomadik <plat/gpio.h> is entirely
superfluous, so get rid of it.

Reported-by: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-23 15:30:04 +01:00
Neil Horman
c6a21d0b8d dma-debug: hash_bucket_find needs to allow for offsets within an entry
Summary:
Users of the pci_dma_sync_single_* api allow users to sync address ranges within
the range of a mapped entry (i.e. you can dma map address X to dma_addr_t A and
then pci_dma_sync_single on dma_addr_t A+1.  The dma-debug library however
assume dma syncs will always occur using the base address of a mapped region,
and uses that assumption to find entries in its hash table.  Since thats often
(but not always the case), the dma debug library can give us false errors about
missing entries, which are reported as syncing of memory not allocated by the
driver.  This was noted in the cxgb3 driver as this error:

WARNING: at lib/dma-debug.c:902 check_sync+0xdd/0x48c()
Hardware name: To be filled by O.E.M.
cxgb3 0000:01:00.0: DMA-API: device driver tries to sync DMA memory it has not
allocated [device address=0x00000000fff97800] [size=1984 bytes]
Modules linked in: autofs4 sunrpc cpufreq_ondemand acpi_cpufreq freq_table
mperf ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 uinput
snd_hda_codec_intelhdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec
snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer e1000e snd soundcore r8169
cxgb3 iTCO_wdt snd_page_alloc mii shpchp i2c_i801 iTCO_vendor_support mdio
microcode firewire_ohci firewire_core crc_itu_t ata_generic pata_acpi i915
drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded:
scsi_wait_scan]
Pid: 1818, comm: ifconfig Not tainted 2.6.35-0.23.rc3.git6.fc14.x86_64 #1
Call Trace:
[<ffffffff81050f71>] warn_slowpath_common+0x85/0x9d
[<ffffffff8105102c>] warn_slowpath_fmt+0x46/0x48
[<ffffffff8124658e>] ? check_sync+0x39/0x48c
[<ffffffff8107c470>] ? trace_hardirqs_on+0xd/0xf
[<ffffffff81246632>] check_sync+0xdd/0x48c
[<ffffffff81246ca6>] debug_dma_sync_single_for_device+0x3f/0x41
[<ffffffffa011615c>] ? pci_map_page+0x84/0x97 [cxgb3]
[<ffffffffa0117bc3>] pci_dma_sync_single_for_device.clone.0+0x65/0x6e [cxgb3]
[<ffffffffa0117ed1>] refill_fl+0x305/0x30a [cxgb3]
[<ffffffffa011857d>] t3_sge_alloc_qset+0x6a7/0x821 [cxgb3]
[<ffffffffa010a07b>] cxgb_up+0x4d0/0xe62 [cxgb3]
[<ffffffff81086037>] ? __module_text_address+0x12/0x58
[<ffffffffa010aa4c>] cxgb_open+0x3f/0x309 [cxgb3]
[<ffffffff813e9f6c>] __dev_open+0x8e/0xbc
[<ffffffff813e7ca5>] __dev_change_flags+0xbe/0x142
[<ffffffff813e9ea8>] dev_change_flags+0x21/0x57
[<ffffffff81445937>] devinet_ioctl+0x29a/0x54b
[<ffffffff811f9a87>] ? inode_has_perm+0xaa/0xce
[<ffffffff81446ed2>] inet_ioctl+0x8f/0xa7
[<ffffffff813d683a>] sock_do_ioctl+0x29/0x48
[<ffffffff813d6c83>] sock_ioctl+0x213/0x222
[<ffffffff81137f78>] vfs_ioctl+0x32/0xa6
[<ffffffff811384e2>] do_vfs_ioctl+0x47a/0x4b3
[<ffffffff81138571>] sys_ioctl+0x56/0x79
[<ffffffff81009c32>] system_call_fastpath+0x16/0x1b
---[ end trace 69a4d4cc77b58004 ]---

(some edits by Joerg Roedel)

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: Jay Fenalson <fenlason@redhat.com>
CC: Divy LeRay <divy@chelsio.com>
CC: Stanislaw Gruszka <sgruszka@redhat.com>
CC: Joerg Roedel <joerg.roedel@amd.com>
CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-08-23 15:36:00 +02:00
Takashi Iwai
d025febcd8 ALSA: hda - Rename to snd_hda_parse_pin_defcfg()
... and add a new bit-flags argument to specify the behavior of the
function.  The older function is kept as is (as a wrapper).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 15:24:39 +02:00
Takashi Iwai
8cd0775da2 ALSA: hda - Fix initialization of multi-speaker output paths for Realtek
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 15:16:22 +02:00
Jens Axboe
89c63a8ef3 Merge branch 'stable/for-jens' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 2011-08-23 15:09:13 +02:00
Takashi Iwai
5fa9b15112 Merge branch 'fix/hda' into topic/hda
Conflicts:
	sound/pci/hda/patch_realtek.c
2011-08-23 15:02:36 +02:00
Takashi Iwai
1f015f5fdc ALSA: hda - Fix double-headphone/speaker paths for Cxt auto-parser
When multiple headphones or speakers are assigned but no individual
DACs are available, the driver should take the first HP/SPK DAC instead
of another primary output.  The patch adds a bit-flag to dac field of
struct pin_dac_pair indicating that it's a slave DAC.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 14:57:08 +02:00
Christoph Hellwig
65299a3b78 block: separate priority boosting from REQ_META
Add a new REQ_PRIO to let requests preempt others in the cfq I/O schedule,
and lave REQ_META purely for marking requests as metadata in blktrace.

All existing callers of REQ_META except for XFS are updated to also
set REQ_PRIO for now.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-23 14:50:29 +02:00
Christoph Hellwig
5dc06c5a70 block: remove READ_META and WRITE_META
Replace all occurnanced of the undocumented READ_META with READ | REQ_META
and remove the unused WRITE_META define.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2011-08-23 14:49:55 +02:00
Thomas Reim
f2b60717e6 drm/radeon: Extended DDC Probing for Toshiba L300D Radeon Mobility X1100 HDMI-A Connector
Toshiba Satellite L300D with ATI Mobility Radeon X1100 sends data
   to i2c bus for a HDMI connector that is not implemented/existent
   on the notebook's board.

   Fix by applying extented DDC probing for this connector.

   Requires [PATCH] drm/radeon: Extended DDC Probing for Connectors
   with Improperly Wired DDC Lines

   Tested for kernel 2.6.38 on Toshiba Satellite L300D notebook

   BugLink: http://bugs.launchpad.net/bugs/826677

Signed-off-by: Thomas Reim <reimth@gmail.com>
Acked-by: Chris Routh <routhy@gmail.com>
Cc: <stable@kernel.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 13:24:55 +01:00
Takashi Iwai
3c715a9884 ALSA: hda - Update jack-sense info even when no automute is set
The internal states, jack_present and line_jack_present should be
updated upon unsolicited events even if no automute is set.
Otherwise the wrong state is referred when the automute behavior is
changed by the mixer control.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 12:41:09 +02:00
Takashi Iwai
675c1aa3c4 ALSA: hda - Fix output-path initialization for Realtek auto-parser
When the headphone or speaker output has no own DAC, initialize the path
using the primary DAC.  Otherwise the path won't be set properly and
can result in the silence.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-23 12:36:28 +02:00
Russell King
ad30a2bbdc Merge branch 'atag_offset' of git://git.linaro.org/people/nico/linux into devel-stable 2011-08-23 10:54:51 +01:00
Russell King
0cd21ebcc5 Merge branch 'dma-size' of git://git.yxit.co.uk/linux into devel-stable 2011-08-23 10:54:45 +01:00
David Herrmann
c87019e41d HID: wiimote: Add status and return request handlers
The wiimote resets the current drm when an extension is plugged in.
Fortunately, it also sends a status report in this situation so we just
reset the drm on every status report to keep the drm consistent.

Also handle return reports from the wiimote which indicate success and
failure of requests that we've sent.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:45 +02:00
David Herrmann
2cb5e4bc53 HID: wiimote: Add drm request
The wiimote reports data in several data reporting modes (DRM). The DRM
request makes the wiimote send data in the requested drm.

The DRM mode can be set explicitely or can be chosen by the driver. To let
the driver choose the DRM mode, pass WIIPROTO_REQ_NULL placeholder to it. This
is no valid request and is replaced with an appropriate DRM.

Currently, the driver always sets the basic DRM_K mode, but this will be
extended when further peripherals like accelerometer and IR are supported.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:34 +02:00
David Herrmann
23a5a4a39e HID: wiimote: Register led class devices
This registers 4 led devices to allow controlling the wiimote leds via standard
LED sysfs API. It removes the four sysfs attributes so we don't have two APIs
for one device.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:21 +02:00
David Herrmann
26af17484a HID: wiimote: Correctly call HID open/close callbacks
Even though the bluetooth hid backend does not react on open/close callbacks, we
should call them to be consistent with other hid drivers.

Also the new input open/close handlers will be used in future to prepare the
wiimote device for IR/extension input.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:55:11 +02:00
David Herrmann
3989ef6cfb HID: wiimote: Simplify synchronization
The new locking scheme in HID core allows us to remove a bit of synchronization.
Since the HID layer acts synchronously we simply register input core last and
there are no synchonization issues anymore.
Also register sysfs files after that to simplify the code.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:54:59 +02:00
Dan Carpenter
8f25229026 HID: hid-lg4ff: add a kfree() to an error path
There is a small rare potential memory leak here.  Also Walter Harms
points out that we can do a small cleanup as well by using kstrdup().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:44:44 +02:00
Dan Carpenter
2bbaf771eb HID: hid-lg4ff: silence sparse complaint
Sparse complains that:
drivers/hid/hid-lg4ff.c:288:44: warning: Using plain integer as NULL pointer
drivers/hid/hid-lg4ff.c:311:44: warning: Using plain integer as NULL pointer

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 10:43:43 +02:00
Ben Skeggs
8d3bb23609 drm/ttm: ensure ttm for new node is bound before calling move_notify()
This was true for new TTM_PL_SYSTEM and new TTM_PL_TT cases, but wasn't
the case on TTM_PL_SYSTEM<->TTM_PL_TT moves, which causes trouble on some
paths as nouveau's move_notify() hook requires that the dma addresses be
valid at this point.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 09:38:30 +01:00
Ben Skeggs
eac2095398 drm/ttm: unbind ttm before destroying node in accel move cleanup
Nouveau makes the assumption that if a TTM is bound there will be a mm_node
around for it and the backwards ordering here resulted in a use-after-free
on some eviction paths.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 09:35:16 +01:00
Marcin Slusarz
7c4c3960df drm/ttm: fix ttm_bo_add_ttm(user) failure path
ttm_tt_destroy kfrees passed object, so we need to nullify
a reference to it.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: stable@kernel.org
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-08-23 09:34:18 +01:00
Axel Lin
8ad346c62a CRED: fix build error due to 'tgcred' undeclared
This patch adds CONFIG_KEYS guard for tgcred to fix below build error
if CONFIG_KEYS is not configured.

  CC      kernel/cred.o
kernel/cred.c: In function 'prepare_kernel_cred':
kernel/cred.c:657: error: 'tgcred' undeclared (first use in this function)
kernel/cred.c:657: error: (Each undeclared identifier is reported only once
kernel/cred.c:657: error: for each function it appears in.)
make[1]: *** [kernel/cred.o] Error 1
make: *** [kernel] Error 2

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
2011-08-23 18:22:28 +10:00
Jeremiah Matthey
f5e4282586 HID: usbhid: Add support for SiGma Micro chip
Patch to add SiGma Micro-based keyboards (1c4f:0002) to hid-quirks.

These keyboards dont seem to allow the records to be initialized, and hence a
timeout occurs when the usbhid driver attempts to initialize them. The patch
just adds the signature for these keyboards to the hid-quirks list with the
setting HID_QUIRK_NO_INIT_REPORTS. This removes the 5-10 second wait for the
timeout to occur.

Signed-off-by: Jeremiah Matthey <sprg86@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 09:44:30 +02:00
Justin P. Mattock
52288b6646 lib: Kconfig.debug: Typo remove extra "it"
The patch below removes an extra "it" in the comment.

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 09:35:36 +02:00
Tejun Heo
1d927c3b5a apm-emulation: use wait_event_freezable() instead of freezer_[do_not_]count()
vfork is moving away from freezer_[do_not_]count() one way or the
other leaving apm_ioctl() as the only user.  apm_ioctl() just wants to
wait for suspend/resume cycle to complete without hindering the
freezer.  Use wait_event_freezable() instead.

The only annoyance is that wait_event_freezable() wakes up with
-ERESTART if there are pending signals while apm_ioctl() wants to
ignore all signals until suspend is complete.  We can play with
@current->[real_]blocked but this is hardly a performance or latency
critical path - simply chill a bit on each iteration until
SUSPEND_DONE for unlikely cases where there are pending signals.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-08-23 09:16:29 +02:00
Tony Lindgren
f41caddbe7 omap2+: Use Kconfig symbol in Makefile instead of obj-y
As noted by Grant Likely <grant.likely@secretlab.ca>, omap2+ Makefile unnecessarily
repeats entries for common device init code instead of using Kconfig symbol.

Remove references to hsmmc.o and board-flash.o. Also omap_phy_internal.o
references can be removed once it has some Kconfig symbol to use.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-08-22 23:57:23 -07:00
Wolfram Sang
87d022cc49 arm: mach-mxs: add rtc to all boards
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: Shawn Guo <shawn.guo@freescale.com> (for mx23evk and mx28evk)
2011-08-23 08:56:15 +02:00