Commit Graph

88695 Commits

Author SHA1 Message Date
Viresh KUMAR c63b3cba4f sdhci-spear: ST SPEAr based SDHCI controller glue
Add a glue layer to support the sdhci driver on the ST SPEAr platform.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: <shiraz.hashim@st.com>
Cc: Linus Walleij <linus.ml.walleij@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Grazvydas Ignotas 6c1f716e81 sdio: add new function for RAW (Read after Write) operation
SDIO specification allows RAW (Read after Write) operation using
IO_RW_DIRECT command (CMD52) by setting the RAW bit.  This operation is
similar to ordinary read/write commands, except that both write and read
are performed using single command/response pair.  The Linux SDIO layer
already supports this internaly, only external function is missing for
drivers to make use, which is added by this patch.

This type of command is required to implement proper power save mode
support in wl1251 wifi driver.

Android has similar patch for G1 in it's tree for the same reason:

http://android.git.kernel.org/?p=kernel/common.git;a=commitdiff;h=74a47786f6ecbe6c1cf9fb15efe6a968451deb52

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Kalle Valo <kalle.valo@iki.fi>
Cc: Dmitry Shmidt <dimitrysh@google.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Matt Fleming 1a13f8fa76 mmc: remove the "state" argument to mmc_suspend_host()
Even though many mmc host drivers pass a pm_message_t argument to
mmc_suspend_host() that argument isn't used the by MMC core.  As host
drivers are converted to dev_pm_ops they'll have to construct
pm_message_t's (as they won't be passed by the PM subsystem any more) just
to appease the mmc suspend interface.

We might as well just delete the unused paramter.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>ZZ
Acked-by: Sascha Sommer <saschasommer@freenet.de>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Kevin Hilman a791daa153 mmc: OMAP HS-MMC: convert to dev_pm_ops
Convert PM operations to use dev_pm_ops.  This will facilitate the runtime
PM coversion which will add to dev_pm_ops hooks.

Note that dev_pm_ops version of the suspend hook no longer takes a 'state'
argument.  However, the MMC core function mmc_suspend_host() still takes a
'state' argument, but it is unused, so a dummy state variable was created
to pass to the MMC core.

In the future, the MMC core should be converted to drop this state
argument and the rest of the MMC drivers could be easily converted to
dev_pm_ops as well.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Denis Karpov <ext-denis.2.karpov@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Adrian Hunter b417577d3b omap_hsmmc: improve interrupt synchronisation
The following changes were needed:
	- do not use in_interrupt() because it will not work
	with threaded interrupts

In addition, the following improvements were made:
	- ensure DMA is unmapped only after the final DMA interrupt
	- ensure a request is completed only after the final DMA interrupt
	- disable controller interrupts when a request is not in progress
	- remove the spin-lock protecting the start of a new request from
	an unexpected interrupt because the locking was complicated and
	a 'req_in_progress' flag suffices (since the spin-lock only defers
	the unexpected interrupts anyway)
	- instead use the spin-lock to protect the MMC interrupt handler
	from the DMA interrupt handler
	- remove the semaphore preventing DMA from being started while
	the previous DMA is still in progress - the other changes make that
	impossible, so it is now a BUG_ON condition
	- ensure the controller interrupt status is clear before exiting
	the interrrupt handler

In general, these changes make the code safer but do not fix any specific
bugs so backporting is not necessary.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Tested-by: Venkatraman S <svenkatr@ti.com>
Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Maurus Cuelenaere 14c5aa6d37 sdhci: enable multiblock transfers in sdhci-s3c
Wifi over SDIO doesn't work correctly without multiblock, so enable this.
This patch depends on the following patches:

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Thomas Abraham b2e75eff5e mmc: s3c6410: enable ADMA feature in 6410 sdhci controller
Enable the ADMA feature in the 6410 SDHCI controller driver.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Thomas Abraham 70764a9057 mmc: s3c6410: add new quirk in sdhci driver and update ADMA descriptor build
The s3c6410 sdhci controller does not support the 'End' attribute and NOP
attribute in the same 8-Byte ADMA descriptor.  This patch adds a new quirk
to identify sdhci host contollers with such behaviour.  In addition to
this, for controllers using the new quirk, the last entry in the ADMA
descritor table is marked with the 'End' attribute (instead of using a NOP
descriptor with 'End' attribute).

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Matt Fleming dc297c92e6 sdhci: build fix: rename SDHCI I/O accessor functions
Unfortunately some architectures #define their read{b,w,l} and
write{b,w,l} I/O accessors which makes the SDHCI I/O accessor functions of
the same names subject to preprocessing.  This leads to the following
compiler error,

In file included from drivers/mmc/host/sdhci.c:26:
drivers/mmc/host/sdhci.h:318:35: error: macro "writel" passed 3 arguments, but takes just 2

Rename the SDHCI I/O functions so that CONFIG_MMC_SDHCI_IO_ACCESSORS can
be enabled for architectures that implement their read{b,w,l} and
write{b,w,l} functions with macros.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Cc: Zhangfei Gao <zgao6@marvell.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Zhangfei Gao a751a7d69f mmc: SDHCI_INT_DATA_MASK typo error
Signed-off-by: Zhangfei Gao <zgao6@marvell.com>
Reviewed-by: Matt Fleming <matt@console-pimps.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Anders Grahn 88ff82ed4f mmc: atmel-mci: Add support for SDIO interrupts
Atmel-mci support for SDIO interrupts.  This adds the enable_sdio_irq()
function and the configuration of sdio irq mask per slot.  With this irq
mask information, we keep the idea of multiple slot per sd/mmc host (not
only A and B).  MMC_CAP_SDIO_IRQ is added according to slot configuration.

A new little function is added to run mmc_signal_sdio_irq() during
interrupt handling routine.

Signed-off-by: Anders Grahn <anders.grahn@hd-wireless.se>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Yusuke Goda fdc50a9444 mmc: add support MMCIF for SuperH
MMCIF is the MMC Host Interface in SuperH.

Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Nicolas Ferre 99ddffd8ef mmc: atmel-mci: enable SD high speed support
Enable high speed support for atmel-mci driver.  This support is dependent
of the revision of the IP and, of course, the capacity of the SD card
used.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Mark Asselstine 6dd6bca3fb mmc: sd: clean up redundant memset
The clearing of mrq via a memset at the top of the for loop in
mmc_wait_for_app_cmd() is not required as mrq is not used and there is
another clearing of mrq just below.  We remove the first memset since if
the initial tests in the for loop fail the memset is not required.

Signed-off-by: Mark Asselstine <asselsm@gmail.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Chaithrika U S bbce5802af davinci: mmc: updates to suspend/resume implementation
Improve the suspend and resume callbacks in DaVinci MMC host controller
driver.  Modify the reset status of the contorller and clock during
suspend and resume.  Also migrate the power management callbacks from
platform driver to dev_pm_ops structure.

Tested on DA850/OMAP-L138 EVM.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Vipin Bhandari <vipin.bhandari@ti.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Chaithrika U S 06de845f72 davinci: mmc: add a function to control reset state of the controller
Add a helper function which will aid in changing the reset
status of the controller.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Vipin Bhandari <vipin.bhandari@ti.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Anton Vorontsov e632c45ad0 sdhci-pltfm: do not print errors in case of an extended iomem size
Some hosts have an extended SDHCI iomem size, so the driver should
only print errors if the iomem size is less than 0x100.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Cc: David Vrabel <david.vrabel@csr.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Anton Vorontsov a7626b7a5d sdhci-pltfm: implement platform data passing
This includes platform ops, quirks and (de)initialization callbacks.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Richard Röjfors <richard.rojfors@pelagicore.com>
Cc: David Vrabel <david.vrabel@csr.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Anton Vorontsov f27f47ef5b sdhci: implement CAP_CLOCK_BASE_BROKEN quirk
Some hosts (e.g.  as found in CNS3xxx SOCs) report wrong value in
CLOCK_BASE capability field, and currently there is no way to force the
SDHCI core to use the platform-provided base clock value.

This patch implements CAP_CLOCK_BASE_BROKEN quirk.  When enabled, the
SDHCI core will always use base clock frequency provided by the platform.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Richard Röjfors <richard.rojfors@pelagicore.com>
Cc: David Vrabel <david.vrabel@csr.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Marek Belisko 0e950fa686 mmc-omap: add support for 16-bit and 32-bit registers
The omap850 and omap730 use 16-bit registers instead of 32-bit, requiring
a modification of the register addresses in the mmc-omap driver.  To
resolve this, a bit shift is performed on base register addresses, either
by 1 or 2 bits depending on the CPU in use.  This yields the correct
registers for each CPU.

Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Cc: Ladislav Michl <ladis@linux-mips.org>
Cc: Ben Dooks <ben@fluff.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Sudhakar Rajashekhara ca2afb6dbe davinci: mmc: pass number of SG segments as platform data
On some platforms like DM355, the number of EDMA parameter slots available
for EDMA_SLOT_ANY usage are few.  In such cases, if MMC/SD uses 16 slots
for each instance of MMC controller, then the number of slots available
for other modules will be very few.

By passing the number of EDMA slots to be used in MMC driver from platform
data, EDMA slots available for other purposes can be controlled.

Most of the platforms will not use this platform data variable.  But on
DM355, as the number of EDMA resources available is limited, the number of
scatter- gather segments used inside the MMC driver can be 8 (passed as
platform data) instead of 16.  On DM355, when the number of scatter-gather
segments was reduced to 8, I saw a performance difference of about
0.25-0.4 Mbytes/sec during write.  Read performance variations were
negligible.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Linus Torvalds 31f4671799 Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  agp: amd64, fix pci reference leaks
  drm/edid: Allow non-fatal checksum errors in CEA blocks
  drm/radeon/kms: suppress a build warning (unused variable)
  drm: Fixes linux-next & linux-2.6 checkstack warnings:
  nouveau: fix acpi_lid_open undefined
  drm/radeon/kms: release AGP bridge at suspend
2010-05-26 12:30:09 -07:00
Linus Torvalds f45471cbda Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: roccat: fix build failure if built as module
  HID: roccat: propagate special events of roccat hardware to userspace
  HID: Add the GYR4101US USB ID to hid-gyration
  HID: fix hid-roccat-kone for bin_attr API change
2010-05-26 08:41:56 -07:00
Jiri Slaby 2101d6f7ac agp: amd64, fix pci reference leaks
Stanse found pci reference leaks in uli_agp_init and nforce3_agp_init
initialization functions.

The PCI devices are bridges, so it's not critical, but still worth fixing.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-05-26 12:54:39 +10:00
Adam Jackson 4a638b4e38 drm/edid: Allow non-fatal checksum errors in CEA blocks
Switches will try to update the topology address and not correctly fix
up the checksum, so just let it slide.

https://bugs.freedesktop.org/28229

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-05-26 10:29:58 +10:00
Stefan Richter 921d98b582 drm/radeon/kms: suppress a build warning (unused variable)
At least 'make CONFIG_DEBUG_SECTION_MISMATCH=y' causes
drivers/gpu/drm/radeon/atombios_crtc.c: In function 'atombios_crtc_set_pll':
drivers/gpu/drm/radeon/atombios_crtc.c:684: warning: 'pll' may be used uninitialized in this function
which has the looks of a falso positive.

Add a default: case so that gcc rests assured that all possible pll_id's are covered.
Keep the present cases that fall through to the default one for self-documentation.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-05-26 10:27:44 +10:00
Linus Torvalds b1cdc4670b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (63 commits)
  drivers/net/usb/asix.c: Fix pointer cast.
  be2net: Bug fix to avoid disabling bottom half during firmware upgrade.
  proc_dointvec: write a single value
  hso: add support for new products
  Phonet: fix potential use-after-free in pep_sock_close()
  ath9k: remove VEOL support for ad-hoc
  ath9k: change beacon allocation to prefer the first beacon slot
  sock.h: fix kernel-doc warning
  cls_cgroup: Fix build error when built-in
  macvlan: do proper cleanup in macvlan_common_newlink() V2
  be2net: Bug fix in init code in probe
  net/dccp: expansion of error code size
  ath9k: Fix rx of mcast/bcast frames in PS mode with auto sleep
  wireless: fix sta_info.h kernel-doc warnings
  wireless: fix mac80211.h kernel-doc warnings
  iwlwifi: testing the wrong variable in iwl_add_bssid_station()
  ath9k_htc: rare leak in ath9k_hif_usb_alloc_tx_urbs()
  ath9k_htc: dereferencing before check in hif_usb_tx_cb()
  rt2x00: Fix rt2800usb TX descriptor writing.
  rt2x00: Fix failed SLEEP->AWAKE and AWAKE->SLEEP transitions.
  ...
2010-05-25 16:59:51 -07:00
David S. Miller f925b1303e drivers/net/usb/asix.c: Fix pointer cast.
Stephen Rothwell reports the following new warning:

drivers/net/usb/asix.c: In function 'asix_rx_fixup':
drivers/net/usb/asix.c:325: warning: cast from pointer to integer of different size
drivers/net/usb/asix.c:354: warning: cast from pointer to integer of different size

The code just cares about the low alignment bits, so use
an "unsigned long" cast instead of one to "u32".

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-25 16:24:03 -07:00
Sarveshwar Bandi dd131e76e5 be2net: Bug fix to avoid disabling bottom half during firmware upgrade.
Certain firmware commands/operations to upgrade firmware could take several
seconds to complete. The code presently disables bottom half during these
operations which could lead to unpredictable behaviour in certain cases. This
patch now does all firmware upgrade operations asynchronously using a
completion variable.

Signed-off-by: Sarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-25 16:16:32 -07:00
Filip Aben dd7496f217 hso: add support for new products
This patch adds a few new product id's for the hso driver.

Signed-off-by: Filip Aben <f.aben@option.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-25 16:09:23 -07:00
Kay Sievers 578454ff7e driver core: add devname module aliases to allow module on-demand auto-loading
This adds:
  alias: devname:<name>
to some common kernel modules, which will allow the on-demand loading
of the kernel module when the device node is accessed.

Ideally all these modules would be compiled-in, but distros seems too
much in love with their modularization that we need to cover the common
cases with this new facility. It will allow us to remove a bunch of pretty
useless init scripts and modprobes from init scripts.

The static device node aliases will be carried in the module itself. The
program depmod will extract this information to a file in the module directory:
  $ cat /lib/modules/2.6.34-00650-g537b60d-dirty/modules.devname
  # Device nodes to trigger on-demand module loading.
  microcode cpu/microcode c10:184
  fuse fuse c10:229
  ppp_generic ppp c108:0
  tun net/tun c10:200
  dm_mod mapper/control c10:235

Udev will pick up the depmod created file on startup and create all the
static device nodes which the kernel modules specify, so that these modules
get automatically loaded when the device node is accessed:
  $ /sbin/udevd --debug
  ...
  static_dev_create_from_modules: mknod '/dev/cpu/microcode' c10:184
  static_dev_create_from_modules: mknod '/dev/fuse' c10:229
  static_dev_create_from_modules: mknod '/dev/ppp' c108:0
  static_dev_create_from_modules: mknod '/dev/net/tun' c10:200
  static_dev_create_from_modules: mknod '/dev/mapper/control' c10:235
  udev_rules_apply_static_dev_perms: chmod '/dev/net/tun' 0666
  udev_rules_apply_static_dev_perms: chmod '/dev/fuse' 0666

A few device nodes are switched to statically allocated numbers, to allow
the static nodes to work. This might also useful for systems which still run
a plain static /dev, which is completely unsafe to use with any dynamic minor
numbers.

Note:
The devname aliases must be limited to the *common* and *single*instance*
device nodes, like the misc devices, and never be used for conceptually limited
systems like the loop devices, which should rather get fixed properly and get a
control node for losetup to talk to, instead of creating a random number of
device nodes in advance, regardless if they are ever used.

This facility is to hide the mess distros are creating with too modualized
kernels, and just to hide that these modules are not compiled-in, and not to
paper-over broken concepts. Thanks! :)

Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Cc: Ian Kent <raven@themaw.net>
Signed-Off-By: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-25 15:08:26 -07:00
David S. Miller 7466a38478 Merge branch 'wimax-2.6.35.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax 2010-05-25 14:05:24 -07:00
David S. Miller a261af927d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-05-25 13:15:11 -07:00
Linus Torvalds ec96e2fe95 Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits)
  ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900
  ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
  ARM: 6140/1: silence a bogus sparse warning in unwind.c
  ARM: mach-at91: duplicated include
  ARM: arch/arm/nwfpe/fpsr.h: Checkpatch cleanup
  ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup
  ARM: arch/arm/nwfpe/ChangeLog: Checkpatch cleanup
  ARM: arch/arm/mach-sa1100/leds.c: Checkpatch cleanup
  ARM: arch/arm/mach-h720x/common.h: Checkpatch cleanup
  ARM: arch/arm/mach-footbridge/ebsa285-pci.c: Checkpatch cleanup
  ARM: arch/arm/mach-clps711x/Makefile.boot: Checkpatch cleanup
  ARM: arch/arm/boot/bootp/bootp.lds: Checkpatch cleanup
  ARM: SPEAR6xx: remove duplicated #include
  ARM: s3c6400_defconfig: Add NAND driver
  ARM: s3c6400_defconfig: enable sound as modules
  ARM: s3c6400_defconfig: enable power management
  ARM: s5pv210_defconfig: Update s5pv210_defconfig to v2.6.34
  ARM: s5pc110_defconfig: Update s5pc110_defconfig to v2.6.34
  ARM: s5p6442_defconfig: Update s5p6442_defconfig to v2.6.34
  ARM: s5p6440_defconfig: Update s5p6440_defconfig to v2.6.34
  ...
2010-05-25 12:06:33 -07:00
Linus Torvalds 8e9815a0f8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/nes: Fix incorrect unlock in nes_process_mac_intr()
  RDMA/nes: Async event for closed QP causes crash
  RDMA/nes: Have ethtool read hardware registers for rx/tx stats
  RDMA/cxgb4: Only insert sq qid in lookup table
  RDMA/cxgb4: Support IB_WR_READ_WITH_INV opcode
  RDMA/cxgb4: Set fence flag for inv-local-stag work requests
  RDMA/cxgb4: Update some HW limits
  RDMA/cxgb4: Don't limit fastreg page list depth
  RDMA/cxgb4: Return proper errors in fastreg mr/pbl allocation
  RDMA/cxgb4: Fix overflow bug in CQ arm
  RDMA/cxgb4: Optimize CQ overflow detection
  RDMA/cxgb4: CQ size must be IQ size - 2
  RDMA/cxgb4: Register RDMA provider based on LLD state_change events
  RDMA/cxgb4: Detach from the LLD after unregistering RDMA device
  IB/ipath: Remove support for QLogic PCIe QLE devices
  IB/qib: Add new qib driver for QLogic PCIe InfiniBand adapters
  IB/mad: Make needlessly global mad_sendq_size/mad_recvq_size static
  IB/core: Allow device-specific per-port sysfs files
  mlx4_core: Clean up mlx4_alloc_icm() a bit
  mlx4_core: Fix possible chunk sg list overflow in mlx4_alloc_icm()
2010-05-25 12:05:17 -07:00
Linus Torvalds 702c0b0497 Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
  spi/xilinx: Fix compile error
  spi/davinci: Fix clock prescale factor computation
  spi: move bitbang txrx utility functions to private header
  spi/mpc5121: Add SPI master driver for MPC5121 PSC
  powerpc/mpc5121: move PSC FIFO memory init to platform code
  spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller
  Documentation/spi/* compile warning fix
  spi/omap2_mcspi: Check params before dereference or use
  spi/omap2_mcspi: add turbo mode support
  spi/omap2_mcspi: change default DMA_MIN_BYTES value to 160
  spi/pl022: fix stop queue procedure
  spi/pl022: add support for the PL023 derivate
  spi/pl022: fix up differences between ARM and ST versions
  spi/spi_mpc8xxx: Do not use map_tx_dma to unmap rx_dma
  spi/spi_mpc8xxx: Fix QE mode Litte Endian
  spi/spi_mpc8xxx: fix potential memory corruption.
2010-05-25 12:04:17 -07:00
Linus Torvalds 99765cc7e3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  regulator: return set_mode is same mode is requested
  Regulators: ab3100/bq24022: add a missing .owner field in regulator_desc
  twl6030: regulator: Remove vsel tables and use formula for calculation
  mc13783-regulator: fix vaild voltage range checking for mc13783_fixed_regulator_set_voltage
  regulator: use voltage number array in 88pm860x
  regulator: make 88pm860x sharing one driver structure
  regulator: simplify regulator_register() error handling
  regulator: fix unset_regulator_supplies() to remove all matches
  regulator: prevent registration of matching regulator consumer supplies
  regulator: Allow regulator-regulator supplies to be specified by name
2010-05-25 11:49:41 -07:00
Linus Torvalds 51e618c357 Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: Driver for the watchdog timer on Freescale IMX2 (and later) processors.
  watchdog: s3c2410_wdt - Fix on handling of the request_mem_region fail
  watchdog: s3c2410_wdt - Add extra option to include watchdog for Samsung SoCs
  iTCO_wdt: fix TCO V1 timeout values and limits
  watchdog: twl4030_wdt: Disable watchdog during probing
  watchdog: update/improve/consolidate watchdog driver
  watchdog: booke_wdt: fix ioctl status flags
  watchdog: fix several MODULE_PARM_DESC strings
  watchdog: bfin: use new common Blackfin watchdog header
2010-05-25 11:40:40 -07:00
Roland Dreier acdc30b56a Merge branches 'cxgb4', 'misc', 'mlx4', 'nes' and 'qib' into for-next 2010-05-25 09:54:03 -07:00
Chien Tung b17e0969dc RDMA/nes: Fix incorrect unlock in nes_process_mac_intr()
Commit ce6e74f2 ("RDMA/nes: Make nesadapter->phy_lock usage
consistent") introduced a problem where phy_lock was only unlocked
within an if statement and so nes_process_mac_intr() could return with
phy_lock still held.  Fix this.

This was discovered because of the sparse warning:

    drivers/infiniband/hw/nes/nes_hw.c:2643:9: warning: context imbalance in 'nes_process_mac_intr' - different lock contexts for basic block

Reported-by: Roland Dreier <rdreier@cisco.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-05-25 09:53:06 -07:00
Linus Torvalds 4961ab934a Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
  power_supply: Fix regression for 'type' property
2010-05-25 08:16:34 -07:00
Felix Fietkau a65e4cb402 ath9k: remove VEOL support for ad-hoc
With VEOL, Beacon transmission in ad-hoc does not currently work.
I believe for larger ad-hoc networks, VEOL is too unreliable, as
it can get beacon transmissions stuck during synchronization.
Use SWBA based beacon trasmission similar to AP mode instead.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Benoit Papillault <benoit.papillault@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-25 11:12:54 -04:00
Felix Fietkau 774610e4f2 ath9k: change beacon allocation to prefer the first beacon slot
This fixes IBSS beacon transmissions without VEOL enabled

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-25 11:12:54 -04:00
Henrik Kretzschmar bf87eae948 auxdisplay: section cleanup in cfag12864bfb driver
This fixes a two section mismatches and makes remove() __devexit.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:09 -07:00
Dan Carpenter a42dcb883d nuc900fb: release correct mem region
We should be releasing "res->start" here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Wang Qiang <rurality.linux@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:09 -07:00
Albert Herranz 49bbd815fd fb_defio: fix for non-dirty ptes
Fix a problem observed while using fb_defio with a short delay on a
PowerPC platform.

It is possible that page_mkclean() is invoked in the deferred io work
function _before_ a PTE has been marked dirty.  In this case, the page is
removed from the defio pagelist but page_mkclean() does not write-protect
the page again.  The end result is that defio ignores all subsequent
writes to the page and the corresponding portions of the framebuffer never
get updated.

The fix consists in keeping track of the pages with non-dirty PTEs,
re-checking them again on the next deferred io work iteration.  Note that
those pages are not passed to the defio callback as they are not written
by userspace yet.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Acked-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:09 -07:00
Henrik Kretzschmar 0d5b02641f sgivwfb: fix sections
Since the drivers probe call was changed from .init.text to .devinit.text
in commit c2e13037e6 ("platform-drivers:
move probe to .devinit.text in drivers/video") the fb_fix_screeninfo and
fb_var_screeninfo structures must be changed from .init.data to
.devinit.data, too.

Also the drivers remove routine should be moved from .text to .devexit.text

It removes these 7 section mismatch warnings from modpost:

WARNING: vmlinux.o(.devinit.text+0x1e28): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_fix
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_fix.
If sgivwfb_fix is only used by sgivwfb_probe then
annotate sgivwfb_fix with a matching annotation.

WARNING: vmlinux.o(.devinit.text+0x1e50): Section mismatch in reference from the function sgivwfb_probe() to the (unknown reference) .init.data:(unknown)
The function __devinit sgivwfb_probe() references
a (unknown reference) __initdata (unknown).
If (unknown) is only used by sgivwfb_probe then
annotate (unknown) with a matching annotation.

WARNING: vmlinux.o(.devinit.text+0x1e59): Section mismatch in reference from the function sgivwfb_probe() to the (unknown reference) .init.data:(unknown)
The function __devinit sgivwfb_probe() references
a (unknown reference) __initdata (unknown).
If (unknown) is only used by sgivwfb_probe then
annotate (unknown) with a matching annotation.

WARNING: vmlinux.o(.devinit.text+0x1e60): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_fix
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_fix.
If sgivwfb_fix is only used by sgivwfb_probe then
annotate sgivwfb_fix with a matching annotation.

WARNING: vmlinux.o(.devinit.text+0x1e6a): Section mismatch in reference from the function sgivwfb_probe() to the (unknown reference) .init.data:(unknown)
The function __devinit sgivwfb_probe() references
a (unknown reference) __initdata (unknown).
If (unknown) is only used by sgivwfb_probe then
annotate (unknown) with a matching annotation.

WARNING: vmlinux.o(.devinit.text+0x1e7f): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_var1600sw
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_var1600sw.
If sgivwfb_var1600sw is only used by sgivwfb_probe then
annotate sgivwfb_var1600sw with a matching annotation.

WARNING: vmlinux.o(.devinit.text+0x1e91): Section mismatch in reference from the function sgivwfb_probe() to the variable .init.data:sgivwfb_var
The function __devinit sgivwfb_probe() references
a variable __initdata sgivwfb_var.
If sgivwfb_var is only used by sgivwfb_probe then
annotate sgivwfb_var with a matching annotation.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:09 -07:00
Henrik Kretzschmar a8ce4be7d5 s3c2410fb: fix sections
Since the drivers probe calls were changed from .init.text to
.devinit.text in commit c2e13037e6
("platform-drivers: move probe to .devinit.text in drivers/video") all the
function from .init.text should be moved to .devinit.text, too.

The drivers remove calls can also be move from .text to .devexit.text.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Vincent Sanders <support@simtec.co.uk>
Acked-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:09 -07:00
Henrik Kretzschmar e88a0f461a hitfb: fix sections
Since the drivers probe call was changed from .init.text to .devinit.text
in commit c2e13037e6 ("platform-drivers:
move probe to .devinit.text in drivers/video") the fb_fix_screeninfo and
fb_var_screeninfo structures must be changed from .init.data to
.devinit.data, too.

Also the drivers remove routine should be moved from .exit.text to
.devexit.text

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:09 -07:00
Grazvydas Ignotas 49c39b4953 fbdev: move FBIO_WAITFORVSYNC to linux/fb.h
FBIO_WAITFORVSYNC is currently implemented by matroxfb, atyfb, intelfb and
more.  All of them keep redefining the same FBIO_WAITFORVSYNC macro over
and over again, so move it to linux/fb.h and clean up those duplicate
defines.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Maik Broemme <mbroemme@plusserver.de>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: "Hiremath, Vaibhav" <hvaibhav@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:09 -07:00