A pointer to a probe callback is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded. Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.
An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Alberto Mardegan <mardy@users.sourceforge.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andriy Skulysh <askulysh@gmail.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Chandramouli Narayanan <mouli@linux.intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Frans Pop <elendil@planet.nl>
Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Helge Deller <deller@gmx.de>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Ian Molton <spyro@f2s.com>
Cc: Joshua Kinard <kumba@gentoo.org>
Cc: Kaj-Michael Lang <milang@tal.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: linux-fbdev-devel@lists.sourceforge.net
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Magnus Damm <damm@igel.co.jp>
Cc: Martin Michlmayr <tbm@cyrius.com>
Cc: Matthias Kaehlcke <matthias@kaehlcke.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Pavel Machek <pavel@suse.cz>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Roel Kluin <roel.kluin@gmail.com>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vincent Sanders <vince@simtec.co.uk>
Cc: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Acked-by: James Simmons <jsimmons@infradead.org>
Acked-by: Peter Jones <pjones@redhat.com>
Acked-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Constify struct sysfs_ops.
This is part of the ops structure constification
effort started by Arjan van de Ven et al.
Benefits of this constification:
* prevents modification of data that is shared
(referenced) by many other structure instances
at runtime
* detects/prevents accidental (but not intentional)
modification attempts on archs that enforce
read-only kernel data at runtime
* potentially better optimized code as the compiler
can assume that the const data cannot be changed
* the compiler/linker move const data into .rodata
and therefore exclude them from false sharing
Signed-off-by: Emese Revfy <re.emese@gmail.com>
Acked-by: David Teigland <teigland@redhat.com>
Acked-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
At most, three backlight device can be supported in 88pm860x driver.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
warning: symbol 'vgacon_text_mode_force' was not declared. Should it be static?
Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
BuraphaLinux reported that we will trigger a mm warning when we
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=65536, this is because mm cann't
allocate so many pages. We should limit the range of
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, don't give a user any chance to
trigger that.
Reported-by: BuraphaLinux Server <buraphalinuxserver@gmail.com>
Tested-by: BuraphaLinux Server <buraphalinuxserver@gmail.com>
Signed-off-by: WANG Cong <amwang@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (151 commits)
vga_switcheroo: disable default y by new rules.
drm/nouveau: fix *staging* driver build with switcheroo off.
drm/radeon: fix typo in Makefile
vga_switcheroo: fix build on platforms with no ACPI
drm/radeon: Fix printf type warning in 64bit system.
drm/radeon/kms: bump the KMS version number for square tiling support.
vga_switcheroo: initial implementation (v15)
drm/radeon/kms: do not disable audio engine twice
Revert "drm/radeon/kms: disable HDMI audio for now on rv710/rv730"
drm/radeon/kms: do not preset audio stuff and start timer when not using audio
drm/radeon: r100/r200 ums: block ability for userspace app to trash 0 page and beyond
drm/ttm: fix function prototype to match implementation
drm/radeon: use ALIGN instead of open coding it
drm/radeon/kms: initialize set_surface_reg reg for rs600 asic
drm/i915: Use a dmi quirk to skip a broken SDVO TV output.
drm/i915: enable/disable LVDS port at DPMS time
drm/i915: check for multiple write domains in pin_and_relocate
drm/i915: clean-up i915_gem_flush_gpu_write_domain
drm/i915: reuse i915_gpu_idle helper
drm/i915: ensure lru ordering of fence_list
...
Fixed trivial conflicts in drivers/gpu/vga/Kconfig
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
sparc: Support show_unhandled_signals.
sparc: use __ratelimit
sunxvr500: Additional PCI id for sunxvr500 driver
sparc: use asm-generic/scatterlist.h
sparc64: If 'slot-names' property exist, create sysfs PCI slot information.
sparc: remove trailing space in messages
sparc: remove redundant return statements
Many new laptops now come with 2 gpus, one to be used for low power
modes and one for gaming/on-ac applications. These GPUs are typically
wired to the laptop panel and VGA ports via a multiplexer unit which
is controlled via ACPI methods.
4 combinations of systems typically exist - with 2 ACPI methods.
Intel/ATI - Lenovo W500/T500 - use ATPX ACPI method
ATI/ATI - some ASUS - use ATPX ACPI Method
Intel/Nvidia - - use _DSM ACPI method
Nvidia/Nvidia - - use _DSM ACPI method.
TODO:
This patch adds support for the ATPX method and initial bits
for the _DSM methods that need to written by someone with
access to the hardware.
Add a proper non-debugfs interface - need to get some proper
testing first.
v2: add power up/down support for both devices
on W500 puts i915/radeon into D3 and cuts power to radeon.
v3: redo probing methods, no DMI list, drm devices call to
register with switcheroo, it tries to find an ATPX method on
any device and once there is two devices + ATPX it inits the
switcher.
v4: ATPX msg handling using buffers - should work on more machines
v5: rearchitect after more mjg59 discussion - move ATPX handling to
radeon driver.
v6: add file headers + initial nouveau bits (to be filled out).
v7: merge delayed switcher code.
v8: avoid suspend/resume of gpu that is off
v9: rearchitect - mjg59 is always right. - move all ATPX code to
radeon, should allow simpler DSM also proper ATRM handling
v10: add ATRM support for radeon BIOS, add mutex to lock vgasr_priv
v11: fix bug in resuming Intel for 2nd time.
v12: start fixing up nvidia code blindly.
v13: blindly guess at finishing nvidia code
v14: remove radeon audio hacks - fix up intel resume more like upstream
v15: clean up printks + remove unnecessary igd/dis pointers
mount debugfs
/sys/kernel/debug/vgaswitcheroo/switch - should exist if ATPX detected
+ 2 cards.
DIS - immediate change to discrete
IGD - immediate change to IGD
DDIS - delayed change to discrete
DIGD - delayed change to IGD
ON - turn on not in use
OFF - turn off not in use
Tested on W500 (Intel/ATI) and T500 (Intel/ATI)
Signed-off-by: Dave Airlie <airlied@redhat.com>
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (88 commits)
powerpc: Fix lwsync feature fixup vs. modules on 64-bit
powerpc: Convert pmc_owner_lock to raw_spinlock
powerpc: Convert die.lock to raw_spinlock
powerpc: Convert tlbivax_lock to raw_spinlock
powerpc: Convert mpic locks to raw_spinlock
powerpc: Convert pmac_pic_lock to raw_spinlock
powerpc: Convert big_irq_lock to raw_spinlock
powerpc: Convert feature_lock to raw_spinlock
powerpc: Convert i8259_lock to raw_spinlock
powerpc: Convert beat_htab_lock to raw_spinlock
powerpc: Convert confirm_error_lock to raw_spinlock
powerpc: Convert ipic_lock to raw_spinlock
powerpc: Convert native_tlbie_lock to raw_spinlock
powerpc: Convert beatic_irq_mask_lock to raw_spinlock
powerpc: Convert nv_lock to raw_spinlock
powerpc: Convert context_lock to raw_spinlock
powerpc/85xx: Add NOR, LEDs and PIB support for MPC8568E-MDS boards
powerpc/86xx: Enable VME driver on the GE SBC610
powerpc/86xx: Enable VME driver on the GE PPC9A
powerpc/86xx: Add MSI section to GE PPC9A DTS
...
Lots of changes. Remove volatile keywords. Take the advice in the comments
and change video_slot to slot_addr. Factor out fifteen or so "channel >>
8" shifts into three shifts higher up the call graph. Make
csc_setpalette() atomic, pass the correct color values. Check for
ioremap() failure. Add missing break statement, thus fixing 24 bit console
visual (blue background bug). Remove some uninformative printk() noise.
Add a description for powerbook 140/170 graphics.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cleanup whitespace and code style. Remove unused #includes and prototypes.
Remove obsolete, redundant or misleading comments. Remove dead code and
redundant initialisers.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Add the missing mac video modes for the Portrait and 12" RGB displays. The
specs come from the Mac LC III developer note.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Valkyriefb and macfb will adopt the same card if they get the chance, so
remove valkyrie support from macfb. Also fix the "valkyriefb: can't do
832x624x8" problem reported by Raylynn Knight some time ago, by adding
vmode 13 support for CONFIG_MAC. Also add vmode 11 since that works too.
Make use of the monitor sense lines on 68k Macs too. Also some cleanups.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
The valkyriefb driver assumes that this logic holds:
mac_vmode_to_var(X, cmode, &var);
mac_var_to_vmode(&var, &vmode, &cmode);
assert(vmode == X);
But it doesn't hold because mac_var_to_vmode() can return a mode with a
slower pixel clock, even when a match is available. So we end up with this
failure:
using video mode 11 and color mode 0.
valkyriefb: vmode 12 not valid.
valkyriefb: can't set default video mode
valkyriefb: vmode 12 not valid.
Rather than have mac_var_to_mode() return the first reasonable mode it
finds, have it return the mode that is closest to the requested one (or
the mode with the closest longer pixel clock period if there is no exact
match).
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (187 commits)
sh: remove dead LED code for migo-r and ms7724se
sh: ecovec build fix for CONFIG_I2C=n
sh: ecovec r-standby support
sh: ms7724se r-standby support
sh: SH-Mobile R-standby register save/restore
clocksource: Fix up a registration/IRQ race in the sh drivers.
sh: ms7724: modify scan_timing for KEYSC
sh: ms7724: Add sh_sir support
sh: mach-ecovec24: Add sh_sir support
sh: wire up SET/GET_UNALIGN_CTL.
sh: allow alignment fault mode to be configured at kernel boot.
sh: sh7724: Update FSI/SPU2 clock
sh: always enable sh7724 vpu_clk and set to 166MHz on Ecovec
sh: add sh7724 kick callback to clk_div4_table
sh: introduce struct clk_div4_table
sh: clock-cpg div4 set_rate() shift fix
sh: Turn on speculative return for SH7785 and SH7786
sh: Merge legacy and dynamic PMB modes.
sh: Use uncached I/O helpers in PMB setup.
sh: Provide uncached I/O helpers.
...
Intergraph bought 3D Labs and some XVR-500 chips have Intergraph's
vendor id.
Reported-by: Jurij Smakov <jurij@wooyd.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (41 commits)
of: remove undefined request_OF_resource & release_OF_resource
of/sparc: Remove sparc-local declaration of allnodes and devtree_lock
of: move definition of of_chosen into common code.
of: remove unused extern reference to devtree_lock
of: put default string compare and #a/s-cell values into common header
of/flattree: Don't assume HAVE_LMB
of: protect linux/of.h with CONFIG_OF
proc_devtree: fix THIS_MODULE without module.h
of: Remove old and misplaced function declarations
of/flattree: Make the kernel accept ePAPR style phandle information
of/flattree: endian-convert members of boot_param_header
of: assume big-endian properties, adding conversions where necessary
of: use __be32 for cell value accessors
of/flattree: use OF_ROOT_NODE_{SIZE,ADDR}_CELLS DEFAULT for fdt parsing
of/flattree: use callback to setup initrd from /chosen
proc_devtree: include linux/of.h
of: make set_node_proc_entry private to proc_devtree.c
of: include linux/proc_fs.h
of/flattree: merge early_init_dt_scan_memory() common code
of: add 'of_' prefix to machine_is_compatible()
...
An offb machine has been seen in the fields which adds two
offb nodes, so continue scanning the list after removing one.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Remove the option for forcing auto-update. Auto-update for manual update
displays is no more a DSS feature, so if a particular display devices does
have auto-update mode, it should be in display's custom settings.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
With the reworked model, DSI driver doesn't need to know anything about
external TE lines. Thus we can remove ext_te support, and only leave the
DSI TE trigger support.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move check/set/get_timings() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move set/get_wss() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move enable/disable/suspend/resume from omap_dss_device to
omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move update() and sync() from omap_dss_device to omap_dss_driver.
Also, update was hardcoded to use virtual channel 0. This patch adds a
parameter that specifies the VC.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move set/get_update_mode() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move enable/get_te() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move get_recommended_bpp() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move get_resolution() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move enable/disable_channel() from omap_dss_device to overlay manager.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move wait_vsync() from omap_dss_device to overlay manager.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move get/set_rotate() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move set/get_mirror() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move memory_read() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Move run_test() from omap_dss_device to omap_dss_driver.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Remove performance measurement for auto-update. Auto-update and thus
performance measurement cannot be supported after the driver change where
the control is moved to display drivers.
This is part of a larger patch-set, which moves the control from omapdss
driver to the display driver.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Physical DSI bus is protected by a mutex. This patch changed the mutex to
a semaphore, so that we can lock and unlock the bus_lock from different
threads.
This is needed as the update process is started by user space program, and
thus the lock is acquired in that context, but the lock can be released in
different context, a work thread via irq.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
After changing the selection of DSI and DISPC clock source the users of
get_dsi/dispc_clk_source() functions were left unchanged.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Commit 4410f39109 ("fbdev: add support for
handoff from firmware to hw framebuffers") didn't add fb_destroy
operation to efifb. Fix it and change aperture_size to match size
passed to request_mem_region.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=15151
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Reported-by: Alex Zhavnerchik <alex.vizor@gmail.com>
Tested-by: Alex Zhavnerchik <alex.vizor@gmail.com>
Acked-by: Peter Jones <pjones@redhat.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If there was a dss device without a driver and thus omapfb probe failed,
ref counts could be left to dss devices.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
