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* memcg: clean up waiting move acctKAMEZAWA Hiroyuki2010-08-111-22/+29
| | | | | | | | | | | | | | | | | | Now, for checking a memcg is under task-account-moving, we do css_tryget() against mc.to and mc.from. But this is just complicating things. This patch makes the check easier. This patch adds a spinlock to move_charge_struct and guard modification of mc.to and mc.from. By this, we don't have to think about complicated races arount this not-critical path. [balbir@linux.vnet.ibm.com: don't crash on a null memcg being passed] Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* memcg: clean up try_charge main loopKAMEZAWA Hiroyuki2010-08-111-100/+148
| | | | | | | | | | | | | | | | | | | mem_cgroup_try_charge() has a big loop in it and seems to be hard to read. Most of routines are for slow path. This patch moves codes out from the loop and make it clear what's done. Summary: - refactoring a function to detect a memcg is under acccount move or not. - refactoring a function to wait for the end of moving task acct. - refactoring a main loop('s slow path) as a function and make it clear why we retry or quit by return code. - add fatal_signal_pending() check for bypassing charge loops. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* memcg: remove experimental from swap account configKAMEZAWA Hiroyuki2010-08-111-2/+2
| | | | | | | | | | | | | | It's 11 months since we changed swap_map[] to indicates SWAP_HAS_CACHE. Since that, memcg's swap accounting has been very stable and it seems it can be maintained. So, I'd like to remove EXPERIMENTAL from the config. Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* blkdev: cgroup whitelist permission fixChris Wright2010-08-111-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | The cgroup device whitelist code gets confused when trying to grant permission to a disk partition that is not currently open. Part of blkdev_open() includes __blkdev_get() on the whole disk. Basically, the only ways to reliably allow a cgroup access to a partition on a block device when using the whitelist are to 1) also give it access to the whole block device or 2) make sure the partition is already open in a different context. The patch avoids the cgroup check for the whole disk case when opening a partition. Addresses https://bugzilla.redhat.com/show_bug.cgi?id=589662 Signed-off-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Serge E. Hallyn <serue@us.ibm.com> Tested-by: Serge E. Hallyn <serue@us.ibm.com> Reported-by: Vivek Goyal <vgoyal@redhat.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: "Daniel P. Berrange" <berrange@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* cgroups: save space for the terminatorDan Carpenter2010-08-111-2/+2
| | | | | | | | | | | | | | | The original code didn't leave enough space for a NULL terminator. These strings are copied with strcpy() into fixed length buffers in cgroup_root_from_opts(). Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Serge E. Hallyn <serge@hallyn.com> Reviewd-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Paul Menage <menage@google.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Cc: Ben Blum <bblum@andrew.cmu.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Documentation/padata.txt: fix typos etc.Randy Dunlap2010-08-111-12/+12
| | | | | | | | | | | Fix typos & grammar. Use CPU instead of cpu in text. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Documentation/00-INDEX: remove reference to exception.txtHuang Shijie2010-08-111-2/+0
| | | | | | | | | The exception.txt has been removed from the Documentation directory. So update the index file for it. Signed-off-by: Huang Shijie <shijie8@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* docbook: need xmldoclinks for all doc typesBen Hutchings2010-08-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | $ rm -rf build $ mkdir build $ cp .config build $ make O=build htmldocs ... xmlto: linux-2.6/build/Documentation/DocBook/media.xml does not validate (status 3) xmlto: Fix document syntax or use --skip-validation option linux-2.6/build/Documentation/DocBook/media.xml:4: warning: failed to load external entity "linux-2.6/build/Documentation/DocBook/media-entities.tmpl" We need the xmldoclinks built for any document types built from the XML sources. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Acked-by: Andy Whitcroft <apw@canonical.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Documentation/networking/wavelan.txt: deleted, not in treeJoe Perches2010-08-111-74/+0
| | | | | | | | | | | Commit 1d794e3b353b ("Staging: wavelan: delete the driver") removed the source, so remove the documentation as well. Signed-off-by: Joe Perches <joe@perches.com> Cc: Jean Tourrilhes <jt@hpl.hp.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mtd/nand_base: fix kernel-doc warnings & typosRandy Dunlap2010-08-112-19/+22
| | | | | | | | | | | | | | | | | | | | | Fix mtd/nand_base.c kernel-doc warnings and typos. Warning(drivers/mtd/nand/nand_base.c:893): No description found for parameter 'mtd' Warning(drivers/mtd/nand/nand_base.c:893): No description found for parameter 'ofs' Warning(drivers/mtd/nand/nand_base.c:893): No description found for parameter 'len' Warning(drivers/mtd/nand/nand_base.c:893): No description found for parameter 'invert' Warning(drivers/mtd/nand/nand_base.c:930): No description found for parameter 'mtd' Warning(drivers/mtd/nand/nand_base.c:930): No description found for parameter 'ofs' Warning(drivers/mtd/nand/nand_base.c:930): No description found for parameter 'len' Warning(drivers/mtd/nand/nand_base.c:987): No description found for parameter 'mtd' Warning(drivers/mtd/nand/nand_base.c:987): No description found for parameter 'ofs' Warning(drivers/mtd/nand/nand_base.c:987): No description found for parameter 'len' Warning(drivers/mtd/nand/nand_base.c:2087): No description found for parameter 'len' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fusion: fix kernel-doc warningsRandy Dunlap2010-08-111-2/+0
| | | | | | | | | | | | Fix (delete) empty kernel-doc lines/warnings: Warning(drivers/message/fusion/mptbase.c:6916): bad line: Warning(drivers/message/fusion/mptbase.c:7060): bad line: Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Eric Moore <Eric.Moore@lsi.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* reiserfs: remove unused local `wait'Changli Gao2010-08-111-1/+0
| | | | | | Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/video/igafb.c: make igafb_setup() and igafb_init() staticAndrew Morton2010-08-111-2/+2
| | | | | | Cc: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/video/igafb.c: introduce lost 'return'Kulikov Vasiliy2010-08-111-0/+1
| | | | | | | | | If iga_init() fails, code releases resources and continues to use it. It seems that after releasing resources 'return' should be. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbmem: VM_IO set, but not propagatedDaniel De Graaf2010-08-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | When we setup up the VMA flags for the mmap flag and we end up using the fallback mmap functionality we set the vma->vm_flags |= VM_IO. However we neglect to propagate the flag to the vma->vm_page_prot. This bug was found when Linux kernel was running under Xen. In that scenario, any page that has VM_IO flag to it, means that it MUST be a MMIO/VRAM backend memory , _not_ System RAM. That is what the fbmem.c does: sets VM_IO, ioremaps the region - everything is peachy. Well, not exactly. The vm_page_prot does not get the relevant PTE flags set (_PAGE_IOMAP) which under Xen is a death-kneel to pages that are referencing real physical devices but don't have that flag set. This patch fixes this. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Tested-by: Eamon Walsh <ewalsh@tycho.nsa.gov> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* arm: samsung: remove pixclock from several boardsMaurus Cuelenaere2010-08-117-10/+3
| | | | | | | | | | | | | | | | Since "s3c-fb: Automatically calculate pixel clock when none is given", there's no need for manually calculating the pixel clock anymore so remove these lines and add the correct refresh rate where appropriately. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Cc: Pawel Osciak <p.osciak@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> 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>
* s3c-fb: automatically calculate pixel clock when none is givenMaurus Cuelenaere2010-08-111-0/+25
| | | | | | | | | | | | | | | | | | | | Add a simple algorithm which calculates the pixel clock based on the video mode parameters. This is only done when no pixel clock is supplied through the platform data. This allows drivers to omit the pixel clock data and thus share the algorithm used for calculating it. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Cc: Pawel Osciak <p.osciak@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Russell King <rmk@arm.linux.org.uk> Tested-by: Donghwa Lee <yiffie9819@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: add support for DMA channel control on S5PV210Pawel Osciak2010-08-112-0/+19
| | | | | | | | | | | | | | S5PV210 SoCs allow enabling/disabling DMA channels per window. For a window to display data from framebuffer memory, its channel has to be enabled. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> 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>
* s3c-fb: fix section mismatchMarek Szyprowski2010-08-111-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following section mismatch errors: WARNING: vmlinux.o(.data+0x20b40): Section mismatch in reference from the variable s3c_fb_driver_ids to the (unknown reference) .devinit.data:(unknown) The variable s3c_fb_driver_ids references the (unknown reference) __devinitdata (unknown) If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: vmlinux.o(.data+0x20b58): Section mismatch in reference from the variable s3c_fb_driver_ids to the (unknown reference) .devinit.data:(unknown) The variable s3c_fb_driver_ids references the (unknown reference) __devinitdata (unknown) If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, WARNING: vmlinux.o(.data+0x20b70): Section mismatch in reference from the variable s3c_fb_driver_ids to the (unknown reference) .devinit.data:(unknown) The variable s3c_fb_driver_ids references the (unknown reference) __devinitdata (unknown) If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: protect window-specific registers during updatesPawel Osciak2010-08-111-0/+7
| | | | | | | | | | | | | | Newer hardware (S3C6410, S5P) have the ability to block updates from shadow registers during reconfiguration. Add protect calls for set_par and clear protection when resetting. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: correct window osd size and alpha register handlingPawel Osciak2010-08-111-7/+47
| | | | | | | | | | | | | | S3C64xx and S5P OSD registers for OSD size and alpha are as follows: VIDOSDC: win 0 - size, win 1-4: alpha VIDOSDD: win 1-2 - size; not present for windows 0, 3 and 4 Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: add SHADOWCON shadow register locking support for S5PV210Pawel Osciak2010-08-112-4/+39
| | | | | | | | | | | | | S5PV210 allows per-window locking of register value updates from shadow registers. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: window 3 of 64xx+ does not have an osd_d registerPawel Osciak2010-08-111-1/+0
| | | | | | | | | | Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: add wait for VSYNC ioctlPawel Osciak2010-08-112-1/+166
| | | | | | | | | | | | | Add VSYNC interrupt support and an ioctl that allows waiting for it. Interrupts are turned on only when needed. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: add support for display panningPawel Osciak2010-08-112-0/+75
| | | | | | | | | | | | | | | | | | Supports all bpp modes. The PRTCON register is used to disable in-hardware updates of registers that store start and end addresses of framebuffer memory. This prevents display corruption in case we do not make it before VSYNC with updating them atomically. With this feature there is no need to wait for a VSYNC interrupt before each such update. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: add device name initializationPawel Osciak2010-08-115-1/+38
| | | | | | | | | | | | | Add framebuffer device name initialization calls for S3C2443, S3C64xx and S5P machines. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: separate S5PC100 and S5PV210 framebuffer driver data structuresPawel Osciak2010-08-111-3/+34
| | | | | | | | | | | | | | | S5PC100 and S5PV210 framebuffer devices differ slightly in terms of available registers and their driver data structures have to be separate. Those differences include dissimilar ways to control shadow register updates. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: correct FRAMESEL1 bitfield defines for VIDINTCON0 registerPawel Osciak2010-08-111-5/+5
| | | | | | | | | | | | FRAMESEL1 bitfield starts on 13th bit, not on 14th. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Cc: InKi Dae <inki.dae@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: fix various null references on framebuffer memory alloc failurePawel Osciak2010-08-111-3/+5
| | | | | | | | | | | | | | | | | | | | The following problems were found in the above situation: sfb->windows[win] was being assigned at the end of s3c_fb_probe_win only. This resulted in passing a NULL to s3c_fb_release_win if probe_win returned early and a memory leak. dma_free_writecombine does not allow its third argument to be NULL. fb_dealloc_cmap does not verify whether its argument is not NULL. Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: integrate palette setup code into main driverBen Dooks2010-08-112-35/+32
| | | | | | | | | | | | | Remove the palette setup code from the header files and put it into the main driver. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: KyungMin Park <kyungmin.park.samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: udpate to support s3c2416/s3c2443 style hardwareBen Dooks2010-08-113-38/+136
| | | | | | | | | | | | | | | | | | | | | Update the variant and window variant structures with the necessary changes to support the older style of hardware where these are not in the same place. Add the support for the s3c2443/s3c2416 hardware by using the platform-device s3c2443 to cover both, and add the initialisation data for these. Also change to including just the v4 header files for the moment until the last of the merging of these is sorted out. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: KyungMin Park <kyungmin.park.samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: initial move to unifying the header filesBen Dooks2010-08-114-118/+180
| | | | | | | | | | | | | | | | Remove the various header files that configure this driver and use the platform device name to select the correct configuration at probe time. Currently this does not remove the header files, only updates the driver and the relevant platform files. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: KyungMin Park <kyungmin.park.samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: only init window colour key controls for windows with blendingBen Dooks2010-08-111-3/+11
| | | | | | | | | | | | | | | | | The driver clears all windows, but also sets the windows' colour key controls at the same time. However, the last window does not have these registers as it is always blended into the previous window. Move the colour key initialisation into the probe, and run it for only nr_win-1 windows. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: KyungMin Park <kyungmin.park.samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: fix distortedness situation for the mode more then 24bppInKi Dae2010-08-112-0/+2
| | | | | | | | | | | | | | | | It has been working fine at 16bpp but in case of pixel format more then 24bpp it would occur distortedness situation on that mode. so this patch set the word swap control bit of WINCONx to 1 as default value. but it should be set to 0 in case that each ENLOCAL bit of WINCON0 ~ 2 registers is enabled. this issue would be solved with local path feature soon. Signed-off-by: InKi Dae <inki.dae@samsung.com> Reviewed-by: KyungMin Park <kyungmin.park.samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: add default window feature.InKi Dae2010-08-112-3/+6
| | | | | | | | | | | | | | | s5pv210 has five window layers (window0 ~ 4), among them, window0 ~ 2 could be used for local path with fimc(capture device) and fimd writeback feature so this patch makes default window layer for UI to be set at machine code. Signed-off-by: InKi Dae <inki.dae@samsung.com> Reviewed-by: KyungMin Park <kyungmin.park.samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* s3c-fb: change to depending on CONFIG_S3C_FB_DEVBen Dooks2010-08-111-1/+1
| | | | | | | | | | | | | | As suggested by Marek Szyprowski, we should make the driver depend on the configuration currently being used to build the platform device into the kernel. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pawel Osciak <p.osciak@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: KyungMin Park <kyungmin.park.samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/video/fbmem.c: simplify strlen()==0 check in fb_get_options()Denys Vlasenko2010-08-111-3/+2
| | | | | | | | | Replaced !strlen(str) check with !str[0]. Removed the variable which was used solely to store strlen result. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbcon: uninline four foo_update_attr() functionsDenys Vlasenko2010-08-114-4/+4
| | | | | | | | | | | | This patch uninlines four similar functions, foo_update_attr(), in four fbcon-related files. These functions contain loops, two of theam have _nested_ loops, and they have more than one callsite each. I think they should not be inlined. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbcon: uninline large static function get_color()Denys Vlasenko2010-08-111-1/+1
| | | | | | | | | This function's body is good two screenfuls and it has six callsites. No apparent reason why it is marked inline. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fbdev: efifb: section fixesHenrik Kretzschmar2010-08-111-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | Remove 43 section mismatches by moving the two structures efifb_defined and efifb_fix from .init.data to .devinit.data. Also the two structure arrays dmi_system_table[] and dmi_list[] have been moved from .data to .init.rodata and .init.data, which saves, if built-in, some space. On x86_64 'size -A' showed that these sections changed size: efifb.o: section size-old size-new .data 1200 688 .init.data 7840 512 .init.rodata 0 7568 .devinit.data 0 256 Total 11927 11911 Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Cc: Peter Jones <pjones@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpio: sx150x: add Semtech I2C sx150x gpio expander driverGregory Bean2010-08-114-0/+735
| | | | | | | | | | | | | | | Add support for Semtech SX150-series I2C GPIO expanders. Compatible models include: 8 bits: sx1508q 16 bits: sx1509q Signed-off-by: Gregory Bean <gbean@codeaurora.org> Cc: David Brownell <david-b@pacbell.net> Cc: Jean Delvare <khali@linux-fr.org> Cc: Trilok Soni <tsoni@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpiolib: allow nested threaded irqs for poll(2)Daniel Gl?ckner2010-08-111-2/+2
| | | | | | | | | | | | The pca953x driver requires the use of threaded irqs as its irq demultiplexer can sleep. Our irq handler can be called from any context, so use request_any_context_irq to allow threaded irqs as well. Signed-off-by: Daniel Gl?ckner <dg@emlix.com> Reported-by: Ian Jeffray <ian@jeffray.co.uk> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpiolib: get rid of struct poll_desc and workletDaniel Gl?ckner2010-08-111-53/+27
| | | | | | | | | | | | | | | | | | As sysfs_notify_dirent has been made irq safe, there is no reason to not call it directly from irq. With the work_struct removed, the remaining element in poll_desc is a sysfs_dirent pointer which may not be NULL. We can therefore store it directly in the idr and pass it as context to the irq handler. Most part of the patch deals with renaming defines and variables to reflect their new use without functional change. I also took the opportunity to initialize the idr statically. Signed-off-by: Daniel Gl?ckner <dg@emlix.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpiolib: decouple might_sleep_if() from DEBUGDavid Brownell2010-08-112-12/+35
| | | | | | | | | | | | | | | Be more consistent about runtime programming interface abuse warnings, which can reduce some confusion and trigger bugfixes. Based on an observation and patch from Jani Nikula. Also update doc to highlight some sleeping-call issues and to match some recent changes. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Jani Nikula <ext-jani.1.nikula@nokia.com> Cc: "Ryan Mallon" <ryan@bluewatersys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pcf857x: support working w/o platform dataDmitry Eremin-Solenikov2010-08-111-5/+4
| | | | | | | | | | | | Provide sane defaults for pcf857x, so the driver can be used w/o providing platform data (and thus can be simply bound via OF tree). Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* gpio: max730x: make pullups configurable via platformdataMarc Kleine-Budde2010-08-112-7/+23
| | | | | | | | | | | | | | | | | | | | | The gpios on the max730x chips have support for internal pullups while in input mode. This patch adds support for configuring these pullups via platform data. A new member ("input_pullup_active") to the platform data struct is introduced. A set bit in this variable activates the pullups while the respective port is in input mode. This is a compatible enhancement since unset bits lead to disables pullups which was the default in the original driver. _Note_: the 4 lowest bits in "input_pullup_active" are unused because the first 4 ports of the controller are not used, too. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: rp5c01: add NVRAM supportGeert Uytterhoeven2010-08-111-0/+89
| | | | | | | | | | | The Ricoh RP5C01 RTC contains 26 x 4 bits of NVRAM. Provide access to it via a sysfs "nvram" attribute file. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* drivers/rtc: remove unneeded ifdef CONFIG_PMChristian Dietrich2010-08-111-6/+0
| | | | | | | | | | | Because CONFIG_PM is a precondition to CONFIG_ACPI, the ifdef CONFIG_PM within ifdef CONFIG_ACPI is redundant. Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-isl12022: properly handle military hour formatRoman Fietze2010-08-111-1/+1
| | | | | | | | | | | Mask out PM flag when reading the hour, always set MIL bit when writing the hour. Signed-off-by: Roman Fietze <roman.fietze@telemotive.de> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: add support for DS3232 RTCRoy Zang2010-08-113-0/+337
| | | | | | | | | | | | | | | | Add a driver for the DS3232 RTC chip via the I2C bus. Alarms are not supported in this version of the driver. [akpm@linux-foundation.org: fix Kconfig help text] Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Jingchang Lu <b22599@freescale.com> Signed-off-by: Srikanth Srinivasan <srikanth.srinivasan@freescale.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Acked-by: Wan ZongShun <mcuos.com@gmail.com> Cc: Kumar Gala <kumar.gala@freescale.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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