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2008-02-07Merge branches 'release' and 'dsdt-override' into releaseLen Brown
2008-02-07Merge branches 'release' and 'fluff' into releaseLen Brown
Conflicts: drivers/acpi/scan.c include/linux/acpi.h Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: misc cleanupsAdrian Bunk
This patch contains the following possible cleanups: - make the following needlessly global code static: - drivers/acpi/bay.c:dev_attr_eject - drivers/acpi/bay.c:dev_attr_present - drivers/acpi/dock.c:dev_attr_docked - drivers/acpi/dock.c:dev_attr_flags - drivers/acpi/dock.c:dev_attr_uid - drivers/acpi/dock.c:dev_attr_undock - drivers/acpi/pci_bind.c:acpi_pci_unbind() - drivers/acpi/pci_link.c:acpi_link_lock - drivers/acpi/sbs.c:acpi_sbs_callback() - drivers/acpi/sbshc.c:acpi_smbus_transaction() - drivers/acpi/sleep/main.c:acpi_sleep_prepare() - #if 0 the following unused global functions: - drivers/acpi/numa.c:acpi_unmap_pxm_to_node() - remove the following unused EXPORT_SYMBOL's: - acpi_register_gsi - acpi_unregister_gsi - acpi_strict - acpi_bus_receive_event - register_acpi_bus_type - unregister_acpi_bus_type - acpi_os_printf - acpi_os_sleep - acpi_os_stall - acpi_os_read_pci_configuration - acpi_os_create_semaphore - acpi_os_delete_semaphore - acpi_os_wait_semaphore - acpi_os_signal_semaphore - acpi_os_signal - acpi_pci_irq_enable - acpi_get_pxm Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: cleanup acpi.hJean Delvare
Two cleanups to <linux/acpi.h>: * Stop defining acpi_mp_config, it isn't used anywhere. * Discard nested "#ifdef CONFIG_ACPI", they are useless and error-prone. Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPICA: fix CONFIG_ACPI_DEBUG_FUNC_TRACE buildLen Brown
798d91039849486c7a4f1a458a5680cb55a65408 (ACPI: create CONFIG_ACPI_DEBUG_FUNC_TRACE) failed to associate the new tracing config option with the tracing code. Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'hwmon-conflicts' into releaseLen Brown
2008-02-07Merge branches 'release' and 'throttling-domains' into releaseLen Brown
2008-02-07Merge branches 'release' and 'video' into releaseLen Brown
Conflicts: include/acpi/acpi_bus.h Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: create notifier chain to get hotkey events to graphics driverZhang Rui
Kernel mode graphics drivers need this ACPI notifier chaine so that they can get notified upon hotkey events. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'wmi-2.6.25' into releaseLen Brown
2008-02-07Merge branches 'release' and 'menlo' into releaseLen Brown
Conflicts: drivers/acpi/video.c Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07Merge branches 'release' and 'stats' into releaseLen Brown
2008-02-07Merge branches 'release' and 'dmi' into releaseLen Brown
2008-02-07Merge branches 'release', 'cpuidle-2.6.25' and 'idle' into releaseLen Brown
2008-02-07Merge branches 'release', 'bugzilla-6217', 'bugzilla-6629', 'bugzilla-6933', ↵Len Brown
'bugzilla-7186', 'bugzilla-8269', 'bugzilla-8570', 'bugzilla-9139', 'bugzilla-9277', 'bugzilla-9341', 'bugzilla-9444', 'bugzilla-9614', 'bugzilla-9643' and 'bugzilla-9644' into release
2008-02-07Merge branches 'release' and 'autoload' into releaseLen Brown
2008-02-07Merge branches 'release', 'asus', 'sony-laptop' and 'thinkpad' into releaseLen Brown
2008-02-07Merge branches 'release', 'acpi_pm_device_sleep_state' and 'battery' into ↵Len Brown
release
2008-02-07cpuidle: Add a poll_idle methodvenkatesh.pallipadi@intel.com
Add a default poll idle state with 0 latency. Provides an option to users to use poll_idle by using 0 as the latency requirement. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: enable MWAIT for C1 idlevenkatesh.pallipadi@intel.com
Add MWAIT idle for C1 state instead of halt, on platforms that support C1 state with MWAIT. Renames cx->space_id to something more appropriate. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: Export acpi_check_resource_conflictThomas Renninger
Export acpi_check_resource_conflict(), sometimes drivers already have a struct resource at hand so no need to use the wrappers to build a new one. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-07ACPI: track opregion names to avoid driver resource conflicts.Thomas Renninger
Small ACPICA extension to be able to store the name of operation regions in osl.c later In ACPI, AML can define accesses to IO ports and System Memory by Operation Regions. Those are not registered as done by PNPACPI using resource templates (and _CRS/_SRS methods). The IO ports and System Memory regions may get accessed by arbitrary AML code. When native drivers are accessing the same resources bad things can happen (e.g. a critical shutdown temperature of 3000 C every 2 months or so). It is not really possible to register the operation regions via request_resource, as they often overlap with pnp or other resources (e.g. statically setup IO resources below 0x100). This approach stores all Operation Region declarations (IO and System Memory only) at ACPI table parse time. It offers a similar functionality like request_region and let drivers which are known to possibly use the same IO ports and Memory which are also often used by ACPI (hwmon and i2c) check for ACPI interference. A boot parameter acpi_enforce_resources=strict/lax/no is provided, which is default set to lax: - strict: let conflicting drivers fail to load with an error message - lax: let conflicting driver work normal with a warning message - no: no functional change at all Depending on the feedback and the kind of interferences we see, this should be set to strict at later time. Goal of this patch set is: - Identify ACPI interferences in bug reports (very hard to reproduce and to identify) - Find BIOSes for that an ACPI driver should exist for specific HW instead of a native one. - stability in general Provide acpi_check_{mem_}region. Drivers can additionally check against possible ACPI interference by also invoking this shortly before they call request_region. If -EBUSY is returned, the driver must not load. Use acpi_enforce_resources=strict/lax/no options to: - strict: let conflicting drivers fail to load with an error message - lax: let conflicting driver work normal with a warning message - no: no functional change at all Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Len Brown <lenb@kernel.org> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-06ACPI: create /sys/firmware/acpi/interruptsLen Brown
See Documentation/ABI/testing/sysfs-firmware-acpi Based-on-original-patch-by: Luming Yu <luming.yu@intel.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-06ACPI: Taint kernel on ACPI table override (format corrected)Éric Piel
When an ACPI table is overridden (for now this can happen only for DSDT) display a big warning and taint the kernel with flag A. Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-069p: transport API reorganizationEric Van Hensbergen
This merges the mux.c (including the connection interface) with trans_fd in preparation for transport API changes. Ultimately, trans_fd will need to be rewritten to clean it up and simplify the implementation, but this reorganization is viewed as the first step. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2008-02-069p: add support for sticky bitAnthony Liguori
GDM gets unhappy if /var/gdm doesn't have the sticky bit set. This patch adds support for the sticky bit in much the same way setuid/setgid is supported. With this patch, I can launch X from a v9fs rootfs (although I quickly run out of fds in the server once gnome starts up). Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Acked-by: Eric Van Hensbergen <ericvh@gmail.com>
2008-02-069p: block-based virtio clientEric Van Hensbergen
This replaces the console-based virto client with a block-based client using a single request queue. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2008-02-069p: create transport rpc cut-thruEric Van Hensbergen
Add a new transport function which allows a cut-thru directly to the transport instead of processing request through the mux if the cut-thru exists. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2008-02-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86: fix deadlock, make pgd_lock irq-safe virtio: fix trivial build bug x86: fix mttr trimming x86: delay CPA self-test and repeat it x86: fix 64-bit sections generic: add __FINITDATA x86: remove suprious ifdefs from pageattr.c x86: mark the .rodata section also NX x86: fix iret exception recovery on 64-bit cpuidle: dubious one-bit signed bitfield in cpuidle.h x86: fix sparse warnings in powernow-k8.c x86: fix sparse error in traps_32.c x86: trivial sparse/checkpatch in quirks.c x86 ptrace: disallow null cs/ss MAINTAINERS: RDC R-321x SoC maintainer brk randomization: introduce CONFIG_COMPAT_BRK brk: check the lower bound properly x86: remove X2 workaround x86: make spurious fault handler aware of large mappings x86: make traps on entry code be debuggable in user space, 64-bit
2008-02-06x86: fix deadlock, make pgd_lock irq-safeIngo Molnar
lockdep just caught this one: ================================= [ INFO: inconsistent lock state ] 2.6.24 #38 --------------------------------- inconsistent {in-softirq-W} -> {softirq-on-W} usage. swapper/1 [HC0[0]:SC0[0]:HE1:SE1] takes: (pgd_lock){-+..}, at: [<ffffffff8022a9ea>] mm_init+0x1da/0x250 {in-softirq-W} state was registered at: [<ffffffffffffffff>] 0xffffffffffffffff irq event stamp: 394559 hardirqs last enabled at (394559): [<ffffffff80267f0a>] get_page_from_freelist+0x30a/0x4c0 hardirqs last disabled at (394558): [<ffffffff80267d25>] get_page_from_freelist+0x125/0x4c0 softirqs last enabled at (393952): [<ffffffff80232f8e>] __do_softirq+0xce/0xe0 softirqs last disabled at (393945): [<ffffffff8020c57c>] call_softirq+0x1c/0x30 other info that might help us debug this: no locks held by swapper/1. stack backtrace: Pid: 1, comm: swapper Not tainted 2.6.24 #38 Call Trace: [<ffffffff8024e1fb>] print_usage_bug+0x18b/0x190 [<ffffffff8024f55d>] mark_lock+0x53d/0x560 [<ffffffff8024fffa>] __lock_acquire+0x3ca/0xed0 [<ffffffff80250ba8>] lock_acquire+0xa8/0xe0 [<ffffffff8022a9ea>] ? mm_init+0x1da/0x250 [<ffffffff809bcd10>] _spin_lock+0x30/0x70 [<ffffffff8022a9ea>] mm_init+0x1da/0x250 [<ffffffff8022aa99>] mm_alloc+0x39/0x50 [<ffffffff8028b95a>] bprm_mm_init+0x2a/0x1a0 [<ffffffff8028d12b>] do_execve+0x7b/0x220 [<ffffffff80209776>] sys_execve+0x46/0x70 [<ffffffff8020c214>] kernel_execve+0x64/0xd0 [<ffffffff8020901e>] ? _stext+0x1e/0x20 [<ffffffff802090ba>] init_post+0x9a/0xf0 [<ffffffff809bc5f6>] ? trace_hardirqs_on_thunk+0x35/0x3a [<ffffffff8024f75a>] ? trace_hardirqs_on+0xba/0xd0 [<ffffffff8020c1a8>] ? child_rip+0xa/0x12 [<ffffffff8020bcbc>] ? restore_args+0x0/0x44 [<ffffffff8020c19e>] ? child_rip+0x0/0x12 turns out that pgd_lock has been used on 64-bit x86 in an irq-unsafe way for almost two years, since commit 8c914cb704a11460e. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-06generic: add __FINITDATAIngo Molnar
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-06cpuidle: dubious one-bit signed bitfield in cpuidle.hHarvey Harrison
fix these sparse warnings: CHECK arch/x86/kernel/acpi/cstate.c include/linux/cpuidle.h:82:17: error: dubious one-bit signed bitfield CHECK arch/x86/kernel/acpi/processor.c include/linux/cpuidle.h:82:17: error: dubious one-bit signed bitfield CHECK arch/x86/kernel/cpu/cpufreq/powernow-k7.c include/linux/cpuidle.h:82:17: error: dubious one-bit signed bitfield CHECK arch/x86/kernel/cpu/cpufreq/powernow-k8.c include/linux/cpuidle.h:82:17: error: dubious one-bit signed bitfield CHECK arch/x86/kernel/cpu/cpufreq/longhaul.c include/linux/cpuidle.h:82:17: error: dubious one-bit signed bitfield CHECK arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c include/linux/cpuidle.h:82:17: error: dubious one-bit signed bitfield Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-06Merge branch 'async-tx-for-linus' of ↵Linus Torvalds
git://lost.foo-projects.org/~dwillia2/git/iop into fix * 'async-tx-for-linus' of git://lost.foo-projects.org/~dwillia2/git/iop: async_tx: allow architecture specific async_tx_find_channel implementations async_tx: replace 'int_en' with operation preparation flags async_tx: kill tx_set_src and tx_set_dest methods async_tx: kill ASYNC_TX_ASSUME_COHERENT iop-adma: use LIST_HEAD instead of LIST_HEAD_INIT async_tx: use LIST_HEAD instead of LIST_HEAD_INIT async_tx: fix compile breakage, mark do_async_xor __always_inline
2008-02-06Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: ata_piix.c:piix_init_one() must be __devinit sata_via.c: Remove missleading comment. libata-core: unblacklist HITACHI drives sata_nv: fix ATAPI issues with memory over 4GB (v7) ata: drivers/ata/sata_mv.c needs dmapool.h libata: kill now unused n_iter and fix sata_fsl ahci: fix CAP.NP and PI handling sata_mv: Support SoC controllers Rename: linux/pata_platform.h to linux/ata_platform.h
2008-02-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (35 commits) virtio net: fix oops on interface-up Fix PHY Lib support for gianfar and ucc_geth forcedeth: preserve registers forcedeth: phy status fix forcedeth: restart tx/rx ipvs: Make wrr "no available servers" error message rate-limited [PPPOL2TP]: Label unused warning when CONFIG_PROC_FS is not set. [NET_SCHED]: cls_flow: support classification based on VLAN tag [VLAN]: Constify skb argument to vlan_get_tag() [NET_SCHED]: cls_flow: fix key mask validity check [NET_SCHED]: em_meta: fix compile warning b43: Fix DMA for 30/32-bit DMA engines b43: fix build with CONFIG_SSB_PCIHOST=n mac80211: Is not EXPERIMENTAL anymore iwl3945-base.c: fix off-by-one errors b43legacy: fix DMA slot resource leakage b43legacy: drop packets we are not able to encrypt b43legacy: fix suspend/resume b43legacy: fix PIO crash Generic HDLC - use random_ether_addr() ...
2008-02-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: Temporarily remove IOMMU merging code. [SPARC64]: Update defconfig. [SPARC]: Add new timerfd syscall entries.
2008-02-06jbd.h: hide kernel only codeOlaf Hering
Move a few kernel-only things into __KERNEL__. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06make jbd/journal.c:__journal_abort_hard() staticAdrian Bunk
__journal_abort_hard() can now become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06isapnp driver semaphore to mutexDaniel Walker
Changed the isapnp semaphore to a mutex. [akpm@linux-foundation.org: no externs-in-c] [akpm@linux-foundation.org: build fix] Signed-off-by: Daniel Walker <dwalker@mvista.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06md: change ITERATE_RDEV_GENERIC to rdev_for_each_list, and remove ↵NeilBrown
ITERATE_RDEV_PENDING. Finish ITERATE_ to for_each conversion. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06md: change ITERATE_RDEV to rdev_for_eachNeilBrown
As this is more in line with common practice in the kernel. Also swap the args around to be more like list_for_each. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06md: allow devices to be shared between md arraysNeilBrown
Currently, a given device is "claimed" by a particular array so that it cannot be used by other arrays. This is not ideal for DDF and other metadata schemes which have their own partitioning concept. So for externally managed metadata, just claim the device for md in general, require that "offset" and "size" are set properly for each device, and make sure that if a device is included in different arrays then the active sections do not overlap. This involves adding another flag to the rdev which makes it awkward to set "->flags = 0" to clear certain flags. So now clear flags explicitly by name when we want to clear things. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06md: allow a maximum extent to be set for resyncingNeilBrown
This allows userspace to control resync/reshape progress and synchronise it with other activities, such as shared access in a SAN, or backing up critical sections during a tricky reshape. Writing a number of sectors (which must be a multiple of the chunk size if such is meaningful) causes a resync to pause when it gets to that point. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06md: support 'external' metadata for md arraysNeilBrown
- Add a state flag 'external' to indicate that the metadata is managed externally (by user-space) so important changes need to be left of user-space to handle. Alternates are non-persistant ('none') where there is no stable metadata - after the array is stopped there is no record of it's status - and internal which can be version 0.90 or version 1.x These are selected by writing to the 'metadata' attribute. - move the updating of superblocks (sync_sbs) to after we have checked if there are any superblocks or not. - New array state 'write_pending'. This means that the metadata records the array as 'clean', but a write has been requested, so the metadata has to be updated to record a 'dirty' array before the write can continue. This change is reported to md by writing 'active' to the array_state attribute. - tidy up marking of sb_dirty: - don't set sb_dirty when resync finishes as md_check_recovery calls md_update_sb when the sync thread finishes anyway. - Don't set sb_dirty in multipath_run as the array might not be dirty. - don't mark superblock dirty when switching to 'clean' if there is no internal superblock (if external, userspace can choose to update the superblock whenever it chooses to). Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06md: Update md bitmap during resync.NeilBrown
Currently an md array with a write-intent bitmap does not updated that bitmap to reflect successful partial resync. Rather the entire bitmap is updated when the resync completes. This is because there is no guarentee that resync requests will complete in order, and tracking each request individually is unnecessarily burdensome. However there is value in regularly updating the bitmap, so add code to periodically pause while all pending sync requests complete, then update the bitmap. Doing this only every few seconds (the same as the bitmap update time) does not notciably affect resync performance. [snitzer@gmail.com: export bitmap_cond_end_sync] Signed-off-by: Neil Brown <neilb@suse.de> Cc: "Mike Snitzer" <snitzer@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06FB/S3C2412: add S3C2412 support to S3C2410 fb driverBen Dooks
Add support for the S3C2412 to the S3C2410 frame buffer driver by ensuring that any moved registers can be dealt with. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Vincent Sanders <vince@simtec.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06ps3: use symbolic names for video modesGeert Uytterhoeven
Use symbolic names for video modes Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06ps3av: ps3av_get_scanmode() and ps3av_get_refresh_rate() are unusedGeert Uytterhoeven
ps3av_get_scanmode() and ps3av_get_refresh_rate() are unused, so remove them Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06atmel_lcdfb: backlight controlDavid Brownell
On the sam9 EK boards, the LCD backlight is hooked up to a PWM output from the LCD controller. It's controlled by "contrast" registers though. This patch lets boards declare that they have that kind of backlight control. The driver can then export this control, letting screenblank and other operations actually take effect ... reducing the typically substantial power drain from the backlight. Note that it's not fully cooked - doesn't force backlight off during system suspend - the "power" and "blank" events may not be done right This should be easily added in the future. [nicolas.ferre@atmel.com: remove unneeded inline and rename functions] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Andrew Victor <linux@maxim.org.za> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-06sm501fb: control panel pin usage with platform data flagsMagnus Damm
This patch makes it possible to control panel pins usage with flags passed from the platform data. Without this patch the sm501fb driver always controls the VBIASEN and FPEN pins. The polarity and use of these pins are very platform specific, so this patch introduces the flags SM501FB_FLAG_PANEL_USE_VBIASEN and SM501FB_FLAG_PANEL_USE_FPEN which enable the use of these pins. This patch is needed to support the a Sharp LQ104V1DG21 lcd panel on SuperH platforms such as R2D-1 and R2D-PLUS boards. Letting the sm501fb driver control the FPEN and VBIASEN pins like today just results in lcd panel flicker. Signed-off-by: Magnus Damm <damm@igel.co.jp> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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