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2010-08-12input: Add STMPE keypad driverRabin Vincent3-0/+397
Add an input driver for the keypad on STMPE I/O expanders. This driver uses the common support provided by the STMPE MFD driver. Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12gpio: Add STMPE GPIO driverRabin Vincent3-0/+407
Add support for the GPIOs on STMPE I/O Expanders. [l.fu@pengutronix.de: fix set direction input] [l.fu@pengutronix.de: set GPIO alternate function while requesting] Acked-by: Luotao Fu <l.fu@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: Add STMPE I/O Expander supportRabin Vincent4-0/+1115
Add support for the STMPE family of I/O Expanders from STMicroelectronics. These devices include upto 24 gpios and a varying selection of blocks, including PWM, keypad, and touchscreen controllers. This patch adds the MFD core. [l.fu@pengutronix.de: fix stmpe811 enable hook] [l.fu@pengutronix.de: add touchscreen platform data] Acked-by: Luotao Fu <l.fu@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: Properly free t7l66xb clk32k clock sourceAxel Lin1-1/+2
This patch includes below fixes to properly free clk32k clock source: 1. remove a redundant clk_put in t7l66xb_probe error path 2. add missing clk_disable(t7l66xb->clk32k) and clk_put(t7l66xb->clk32k) to properly free the clock source. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: More verbose MFD Kconfig entrySamuel Ortiz1-1/+10
For people to be able to intellingibly decide if they want to enable MFD drivers or not, we have to give them a much better description of what they are.
2010-08-12mfd: Staticise ab3550 register access functionsMark Brown1-11/+12
These are now exported via an ops table rather than referenced directly and so should be staticised. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: Fix davinci memory leakJulia Lawall1-2/+4
Error handling code following a kmalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: properly handle platform_device_add_resources fail in mfd_add_deviceAxel Lin1-1/+3
platform_device_add_resources may fail, thus add error checking for it. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: kzalloc doesn't return ERR_PTRJulia Lawall1-1/+1
Use !x rather than IS_ERR(x) to test the result of kzalloc. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,E; @@ x = \(kmalloc\|kzalloc\|kcalloc\)(...) ... when != x = E - IS_ERR(x) + !x // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: AB8500 mask off irrelevant bits from the SPI messageLinus Walleij1-1/+6
The registers on the AB8500 are only 8 bits wide, so the content of the remaining bits is undefined. Let's mask off the undefined stuff when returning a register in an SPI read. Acked-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: Fix 88pm860x uninitialized variable and clean upDan Carpenter1-40/+32
The original code had a compile warning: drivers/mfd/88pm860x-core.c:431: warning: ‘ret’ may be used uninitialized in this function It seems like the warning is valid if either pdata or pdata->touch is NULL. This patch checks pdata and pdata->touch at the beginning of the function. That means everything can be pulled in one indent level. Now all the statements fit within the 80 character limit. Also at that point the "use_gpadc" variable isn't needed and removing it simplifies the logic. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Haojian Zhuang <hzhuang1@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: Fix memory leak in ab3100_otp_probeAxel Lin1-8/+8
In current implementation, there is a memory leak if ab3100_otp_read fail. And in the case of ab3100_otp_init_debugfs fail, it does not properly remove sysfs entries. This patch properly handle above failure cases. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: Fix led resource in 88pm860xHaojian Zhuang1-6/+6
Fix typo error in LED resource of 88pm860x. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-12mfd: Enable onkey on max8925Haojian Zhuang1-0/+27
Enable onkey feature in max8925 driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-08-11Merge branch 'msm-video' of git://codeaurora.org/quic/kernel/dwalker/linux-msmLinus Torvalds2-4/+1
* 'msm-video' of git://codeaurora.org/quic/kernel/dwalker/linux-msm: video: msm: Fix section mismatch in mddi.c. drivers: video: msm: drop some unused variables
2010-08-11Merge branch 'ixp4xx' of ↵Linus Torvalds3-2/+23
git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 * 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6: IXP4xx: Fix LL debugging on little-endian CPU. IXP4xx: Fix sparse warnings in I/O primitives. IXP4xx: Make mdio_bus struct static in the Ethernet driver. IXP4xx: Fix ixp4xx_crypto little-endian operation. IXP4xx: Prevent HSS transmitter lockup by disabling FRaMe signals. ixp4xx/vulcan: add PCI support ixp4xx: base support for Arcom Vulcan
2010-08-11Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds27-145/+2579
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (226 commits) ARM: 6323/1: cam60: don't use __init for cam60_spi_{flash_platform_data,partitions} ARM: 6324/1: cam60: move cam60_spi_devices to .init.data ARM: 6322/1: imx/pca100: Fix name of spi platform data ARM: 6321/1: fix syntax error in main Kconfig file ARM: 6297/1: move U300 timer to dynamic clock lookup ARM: 6296/1: clock U300 intcon and timer properly ARM: 6295/1: fix U300 apb_pclk split ARM: 6306/1: fix inverted MMC card detect in U300 ARM: 6299/1: errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID ARM: 6294/1: etm: do a dummy read from OSSRR during initialization ARM: 6292/1: coresight: add ETM management registers ARM: 6288/1: ftrace: document mcount formats ARM: 6287/1: ftrace: clean up mcount assembly indentation ARM: 6286/1: fix Thumb-2 decompressor broken by "Auto calculate ZRELADDR" ARM: 6281/1: video/imxfb.c: allow usage without BACKLIGHT_CLASS_DEVICE ARM: 6280/1: imx: Fix build failure when including <mach/gpio.h> without <linux/spinlock.h> ARM: S5PV210: Fix on missing s3c-sdhci card detection method for hsmmc3 ARM: S5P: Fix on missing S5P_DEV_FIMC in plat-s5p/Kconfig ARM: S5PV210: Override FIMC driver name on Aquila board ARM: S5PC100: enable FIMC on SMDKC100 ... Fix up conflicts in arch/arm/mach-{s5pc100,s5pv210}/cpu.c due to different subsystem 'setname' calls, and trivial port types in include/linux/serial_core.h
2010-08-11kfifo: fix kfifo miss use of nozami.cStefani Seibold1-2/+1
There are different types of a fifo which can not handled in C without a lot of overhead. So i decided to write the API as a set of macros, which is the only way to do a kind of template meta programming without C++. This macros handles the different types of fifos in a transparent way. There are a lot of benefits: - Compile time handling of the different fifo types - Better performance (a save put or get of an integer does only generate 9 assembly instructions on a x86) - Type save - Cleaner interface, the additional kfifo_..._rec() functions are gone - Easier to use - Less error prone - Different types of fifos: it is now possible to define a int fifo or any other type. See below for an example. - Smaller footprint for none byte type fifos - No need of creating a second hidden variable, like in the old DEFINE_KFIFO The API was not changed. There are now real in place fifos where the data space is a part of the structure. The fifo needs now 20 byte plus the fifo space. Dynamic assigned or allocated create a little bit more code. Most of the macros code will be optimized away and simple generate a function call. Only the really small one generates inline code. Additionally you can now create fifos for any data type, not only the "unsigned char" byte streamed fifos. There is also a new kfifo_put and kfifo_get function, to handle a single element in a fifo. This macros generates inline code, which is lit bit larger but faster. I know that this kind of macros are very sophisticated and not easy to maintain. But i have all tested and it works as expected. I analyzed the output of the compiler and for the x86 the code is as good as hand written assembler code. For the byte stream fifo the generate code is exact the same as with the current kfifo implementation. For all other types of fifos the code is smaller before, because the interface is easier to use. The main goal was to provide an API which is very intuitive, save and easy to use. So linux will get now a powerful fifo API which provides all what a developer needs. This will save in the future a lot of kernel space, since there is no need to write an own implementation. Most of the device driver developers need a fifo, and also deep kernel development will gain benefit from this API. Here are the results of the text section usage: Example 1: kfifo_put/_get kfifo_in/out current kfifo dynamic allocated 0x000002a8 0x00000291 0x00000299 in place 0x00000291 0x0000026e 0x00000273 kfifo.c new old text section size 0x00000be5 0x000008b2 As you can see, kfifo_put/kfifo_get creates a little bit more code than kfifo_in/kfifo_out, but it is much faster (the code is inline). The code is complete hand crafted and optimized. The text section size is as small as possible. You get all the fifo handling in only 3 kb. This includes type safe fix size records, dynamic records and DMA handling. This should be the final version. All requested features are implemented. Note: Most features of this API doesn't have any users. All functions which are not used in the next 9 months will be removed. So, please adapt your drivers and other sources as soon as possible to the new API and post it. This are the features which are currently not used in the kernel: kfifo_to_user() kfifo_from_user() kfifo_dma_....() macros kfifo_esize() kfifo_recsize() kfifo_put() kfifo_get() The fixed size record elements, exclude "unsigned char" fifo's and the variable size records fifo's This patch: User of the kernel fifo should never bypass the API and directly access the fifo structure. Otherwise it will be very hard to maintain the API. Signed-off-by: Stefani Seibold <stefani@seibold.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11parport_serial: use the PCI IRQ if offeredFr?d?ric Bri?re1-1/+0
Commit 51dcdfe ("parport: Use the PCI IRQ if offered") added IRQ support for PCI parallel port devices handled by parport_pc, but turned it off for parport_serial, despite a printk() message to the contrary. Signed-off-by: Fr?d?ric Bri?re <fbriere@fbriere.net> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11panic: keep blinking in spite of long spin timer modeTAMUKI Shoichi1-20/+5
To keep panic_timeout accuracy when running under a hypervisor, the current implementation only spins on long time (1 second) calls to mdelay. That brings a good effect, but the problem is the keyboard LEDs don't blink at all on that situation. This patch changes to call to panic_blink_enter() between every mdelay and keeps blinking in spite of long spin timer mode. The time to call to mdelay is now 100ms. Even this change will keep panic_timeout accuracy enough when running under a hypervisor. Signed-off-by: TAMUKI Shoichi <tamuki@linet.gr.jp> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Russell King <linux@arm.linux.org.uk> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11scsi: 53c700: remove dma_is_consistent usageFUJITA Tomonori1-3/+0
This driver is the only user of dma_is_consistent(). We plan to remove this API. The driver uses the API in the following way: BUG_ON(!dma_is_consistent(hostdata->dev, pScript) && L1_CACHE_BYTES < dma_get_cache_alignment()); The above code tries to see if L1_CACHE_BYTES is greater than dma_get_cache_alignment() on sysmtes that can not allocate coherent memory (some old systems can't). James Bottomley exmplained that this is necesary because the driver packs the set of mailboxes into a single coherent area and separates the different usages by a L1 cache stride. So it's fatal if the dma He also pointed out that we can kill this checking because we don't hit this BUG_ON on all architectures that actually use the driver. (akpm: stolen from the scsi tree because dma-mapping-remove-dma_is_consistent-api.patch needs it) Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11edac: mpc85xx: add support for new MPCxxx/Pxxxx EDAC controllersAnton Vorontsov1-0/+6
Simply add proper IDs into the device table. Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Dave Jiang <djiang@mvista.com> Cc: Doug Thompson <dougthompson@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11edac: i5400: improve handling of pci_enable_device() return valueKulikov Vasiliy1-1/+1
-EIO is not the only error code that pci_enable_device() may return, also the set of errors can be enhanced in future. We should compare return code with zero, not with concrete error value. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Jeff Roberson <jroberson@jroberson.net> Cc: Doug Thompson <dougthompson@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11edac: i5000: improve handling of pci_enable_device() return valueKulikov Vasiliy1-1/+1
-EIO is not the only error code that pci_enable_device() may return, also the set of errors can be enhanced in future. We should compare return code with zero, not with concrete error value. Signed-off-by: Kulikov Vasiliy <segooon@gmail.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Jeff Roberson <jroberson@jroberson.net> Cc: Doug Thompson <dougthompson@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11edac: add wissing pieces from MPC85xx -> FSL_SOC_BOOKEChristoph Egger1-5/+5
In 5753c082f66eca5be81f6bda85c1718c5eea6ada ("powerpc/85xx: Kconfig cleanup") menuconfig MPC85xx was replaced by FSL_SOC_BOOKE but some references insider the code were not adjusted accordingly. This patch adresses these missing pieces. Signed-off-by: Christoph Egger <siccegge@cs.fau.de> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11cs5535-mfgpt: reuse timers that have never been set upJens Rottmann1-0/+11
The MFGPT hardware may be set up only once, therefore cs5535_mfgpt_free_timer() didn't re-set the timer's "avail" bit. However if a timer is freed before it has actually been in use then it may be made available again. Signed-off-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de> Acked-by: Andres Salomon <dilinger@queued.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jordan Crouse <jordan@cosmicpenguin.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11drivers/char/n_gsm.c: add missing spin_unlock_irqrestoreJulia Lawall1-1/+1
Add a spin_unlock_irqrestore missing on the error path. Converting the return to break leads to the spin_unlock_irqrestore at the end of the function. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E1; @@ * spin_lock_irqsave(E1,...); <+... when != E1 if (...) { ... when != E1 * return ...; } ...+> * spin_unlock_irqrestore(E1,...); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11ipmi: print info for spmi and smbios paths like acpi and pciYinghai Lu1-1/+11
Print out the reg spacing and size for spmi and smbios so BIOS developers can make them consistent. Also remove extra PFX on the duplicating path. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Corey Minyard <minyard@acm.org> Cc: Matthew Garrett <mjg@redhat.com> Cc: Len Brown <len.brown@intel.com> Cc: Myron Stowe <myron.stowe@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11ipmi: fix memleaking for add_smi when duplicating happenYinghai Lu1-7/+28
Free the temporary info struct when we have duplicated ones. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Corey Minyard <minyard@acm.org> Cc: Matthew Garrett <mjg@redhat.com> Cc: Len Brown <len.brown@intel.com> Cc: Myron Stowe <myron.stowe@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11drivers/char/ipmi/ipmi_si_intf.c: fix warning: variable 'addr_space' set but ↵Justin P. Mattock1-8/+2
not used Fix a warning message generated by GCC, and also updates a web address pointing to a pdf containing information. CC [M] drivers/char/ipmi/ipmi_si_intf.o drivers/char/ipmi/ipmi_si_intf.c: In function 'try_init_spmi': drivers/char/ipmi/ipmi_si_intf.c:2016:8: warning: variable 'addr_space' set but not used Signed-off-by: Sergey V. <sftp.mtuci@gmail.com> Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-11mtd/nand_base: fix kernel-doc warnings & typosRandy Dunlap1-19/+20
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>
2010-08-11fusion: fix kernel-doc warningsRandy Dunlap1-2/+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>
2010-08-11drivers/video/igafb.c: make igafb_setup() and igafb_init() staticAndrew Morton1-2/+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>
2010-08-11drivers/video/igafb.c: introduce lost 'return'Kulikov Vasiliy1-0/+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>
2010-08-11fbmem: VM_IO set, but not propagatedDaniel De Graaf1-0/+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>
2010-08-11s3c-fb: automatically calculate pixel clock when none is givenMaurus Cuelenaere1-0/+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>
2010-08-11s3c-fb: add support for DMA channel control on S5PV210Pawel Osciak1-0/+15
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>
2010-08-11s3c-fb: fix section mismatchMarek Szyprowski1-5/+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>
2010-08-11s3c-fb: protect window-specific registers during updatesPawel Osciak1-0/+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>
2010-08-11s3c-fb: correct window osd size and alpha register handlingPawel Osciak1-7/+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>
2010-08-11s3c-fb: add SHADOWCON shadow register locking support for S5PV210Pawel Osciak1-4/+36
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>
2010-08-11s3c-fb: window 3 of 64xx+ does not have an osd_d registerPawel Osciak1-1/+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>
2010-08-11s3c-fb: add wait for VSYNC ioctlPawel Osciak1-1/+165
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>
2010-08-11s3c-fb: add support for display panningPawel Osciak1-0/+68
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>
2010-08-11s3c-fb: separate S5PC100 and S5PV210 framebuffer driver data structuresPawel Osciak1-3/+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>
2010-08-11s3c-fb: fix various null references on framebuffer memory alloc failurePawel Osciak1-3/+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>
2010-08-11s3c-fb: integrate palette setup code into main driverBen Dooks1-1/+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>
2010-08-11s3c-fb: udpate to support s3c2416/s3c2443 style hardwareBen Dooks1-31/+131
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>
2010-08-11s3c-fb: initial move to unifying the header filesBen Dooks1-28/+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>
2010-08-11s3c-fb: only init window colour key controls for windows with blendingBen Dooks1-3/+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>
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