- 22 Feb, 2013 39 commits
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Fabio Estevam authored
Fix the following sparse error: drivers/video/mx3fb.c:1309:28: warning: Using plain integer as NULL pointer Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Acked-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Ajay Kumar authored
disable_irq() should be moved to exynos_dp_suspend(), because enable_irq() is called at exynos_dp_resume(). Signed-off-by:
Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by:
Jingoo Han <jg1.han@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by:
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Jingoo Han authored
of_find_node_by_name() returns a node pointer with refcount incremented, use of_node_put() on it when done. of_find_node_by_name() will call of_node_put() against the node pass to from parameter, thus we also need to call of_node_get(from) before calling of_find_node_by_name(). Signed-off-by:
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Tomasz Figa authored
The correct value for VIDCON1_VSTATUS_FRONTPORCH is 3, not 0. Signed-off-by:
Tomasz Figa <t.figa@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Jingoo Han authored
Add the bit definitions for CSC EQ709 and EQ601. These definitons are used to control the CSC parameter such as equation 709 and equation 601. Signed-off-by:
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Jingoo Han authored
Remove unnecessary brackets and the duplicated VIDTCON2 definition. Also, header comment is modified, because EXYNOS series is supported and <mach/regs-fb.h> is not available. Signed-off-by:
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Jingoo Han authored
S3C_FB_MAX_WIN is already defined in 'plat-samsung/include/plat/fb.h'. So, this definition in 'include/video/samsung_fimd.h' should be removed to avoid the duplication. Signed-off-by:
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Jingoo Han authored
Use ARCH_ dependancy when using s3c-fb. S3C_DEV_FB, S5P_DEV_FIMD0 cannot be enabled on EXYNOS5. So, ARCH_ should be used as dependancy for s3c-fb. Signed-off-by:
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Sachin Kamat authored
devm_* APIs are device managed and make exit and cleanup code simpler. While at it also remove some unused labels and fix an error path. Signed-off-by:
Sachin Kamat <sachin.kamat@linaro.org> Acked-by:
Donghwa Lee <dh09.lee@samsung.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by:
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Sachin Kamat authored
Checking an unsigned variable for negative value returns false. Hence use the macro to fix it. Fixes the following smatch warning: drivers/video/exynos/exynos_mipi_dsi.c:417 exynos_mipi_dsi_probe() warn: unsigned 'dsim->irq' is never less than zero. Signed-off-by:
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Sachin Kamat authored
devm_* APIs are device managed and make error handling and code cleanup simpler. Signed-off-by:
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Fabio Estevam authored
FB_IMX is the framebuffer driver used by MX1, MX21, MX25 and MX27 processors. Pass this information to the Kconfig text to make it clear. Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by:
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Zhou Zhu authored
Add display and fb support in pxa910 defconfig. Add tpohvga panel, spi support. Add logo support. Signed-off-by:
Zhou Zhu <zzhu3@marvell.com> Acked-by:
Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Lisa Du <cldu@marvell.com> Cc: Guoqing Li <ligq@marvell.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by:
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Zhou Zhu authored
Enable display in ttc_dkb. Signed-off-by:
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Zhou Zhu authored
Add device for display controller and fb support Signed-off-by:
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Zhou Zhu authored
Add spi port support in mmp display controller. This port is from display controller and for panel usage. This driver implemented and registered as a spi master. Signed-off-by:
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Lisa Du authored
Add tpo hvga panel support in marvell display framework. This panel driver implements modes query and power on/off. This panel driver gets panel config/ plat power on/off/ connected path name from machine-info and registered as a spi device. This panel driver uses mmp_disp supplied register_panel function to register panel to path as machine-info defined. Signed-off-by:
Lisa Du <cldu@marvell.com> Signed-off-by:
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Guoqing Li authored
Marvell mmp series display controller support in mmpdisp subsystem. This driver focus on implementation of hardware operations of path/overlay, which is defined in mmp display subsystem interface. This driver registers all pathes to mmp display framework. Signed-off-by:
Guoqing Li <ligq@marvell.com> Signed-off-by:
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Arnd Bergmann authored
Commit 16559ae4 ("kgdb: remove #include <linux/serial_8250.h> from kgdb.h") changes the kgdb.h file so that drivers including it do not implicitly include linux/platform_device.h. The mmp framebuffer driver is new, so Greg did not have a chance to fix it up when introducing his change. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Cc: Zhou Zhu <zzhu3@marvell.com> Cc: Lisa Du <cldu@marvell.com> Cc: Guoqing Li <ligq@marvell.com> Acked-by:
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Zhou Zhu authored
Add fb support for Marvell mmp display subsystem. This driver is configured using "buffer driver mach info". With configured name of path, this driver get path using using exported interface of mmp display driver. Then this driver get overlay using configured id and operates on this overlay to show buffers on display devices. Signed-off-by:
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Zhou Zhu authored
Add mmp display subsystem to support Marvell MMP display controllers. This subsystem contains 4 parts: --fb folder --core.c --hw folder --panel folder 1. fb folder contains implementation of fb. fb get path and overlay from common interface and operates on these structures. 2. core.c provides common interface for a hardware abstraction. Major parts of this interface are: a) Path: path is a output device connected to a panel or HDMI TV. Main operations of the path is set/get timing/output color. fb operates output device through path structure. b) Ovly: Ovly is a buffer shown on the path. Ovly describes frame buffer and its source/destination size, offset, input color, buffer address, z-order, and so on. Each fb device maps to one overlay. 3. hw folder contains implementation of hardware operations defined by core.c. It registers paths for fb use. 4. panel folder contains implementation of panels. It's connected to path. Panel drivers would also regiester panels and linked to path when probe. Signed-off-by: -
Arve Hjønnevåg authored
Framebuffer support for the Goldfish emulator. This takes the Google emulator and applies the x86 cleanups as well as moving the blank methods to the usual Linux place and dropping the Android early suspend logic (for now at least, that can be looked at as Android and upstream converge). Dropped various oddities like setting MTRRs on a virtual frame buffer emulation... With the drivers so far you can now boot a Linux initrd and have fun. [sheng@linux.intel.com: cleaned up to handle x86] [thomas.keel@intel.com: ported to 3.4] [alan@linux.intel.com: cleaned up for style and 3.7, moved blank methods] [akpm@linux-foundation.org: fix (silly) sparse warnings] Signed-off-by:
Mike A. Chan <mikechan@google.com> Signed-off-by:
Arve Hjønnevåg <arve@android.com> Signed-off-by:
Sheng Yang <sheng@linux.intel.com> Signed-off-by:
Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by:
Xiaohui Xin <xiaohui.xin@intel.com> Signed-off-by:
Jun Nakajima <jun.nakajima@intel.com> Signed-off-by:
Bruce Beare <bruce.j.beare@intel.com> Signed-off-by:
Tom Keel <thomas.keel@intel.com> Signed-off-by:
Alan Cox <alan@linux.intel.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
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Kamal Mostafa authored
Explicitly clear_margins when clearing the logo, in case the font dimensions are non-integral to the framebuffer dimensions. Signed-off-by:
Kamal Mostafa <kamal@whence.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
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Christian Lamparter authored
Move the device rebind procedures for cardbus devices from the pm.resume into the pm.complete callback. The reason for moving the code is: "[...] The PM code needs to send suspend and resume messages to every device in the right order, and it can't do that if new devices are being added at the same time. [...]" However the situation really isn't quite that rigid. In particular, adding new children during a resume callback shouldn't cause much of problem because the children don't need to be resumed anyway (since they were never suspended). On the other hand, if you do it you will get a dev_warn() from the PM core, something like 'parent should not be sleeping'. Still, it is considered bad form and should be avoided if possible." (Alan Stern's full comment about the topic can be found here: <https://lkml.org/lkml/2012/7/10/254>) Signed-off-by:
Christian Lamparter <chunkeey@googlemail.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Greg KH <greg@kroah.com> Acked-by:
"Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by:
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Geert Uytterhoeven authored
On cris-linux-gcc, __SIZE_TYPE__ expands to "unsigned int", as gcc-4.6.3-nolibc/cris-linux/lib/gcc/cris-linux/4.6.3/plugin/include/config/cris/linux.h has #define SIZE_TYPE "unsigned int" Hence __kernel_size_t is also "unsigned int". But __kernel_ssize_t is "long", which has a different base type, causing compiler warnings like: fs/quota/quota_tree.c:372:4: warning: format '%zd' expects argument of type 'signed size_t', but argument 4 has type 'ssize_t' [-Wformat] To fix this, __kernel_ssize_t should be changed to "int". Hence cris can just use the generic 32-bit versions from include/asm-generic/posix_types.h for all size-related types. Signed-off-by:Geert Uytterhoeven <geert@linux-m68k.org> Cc: Mikael Starvik <starvik@axis.com> Acked-by:
Jesper Nilsson <jesper.nilsson@axis.com> Cc: Hans-Peter Nilsson <hans-peter.nilsson@axis.com> Signed-off-by:
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Wei Yongjun authored
Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: David Howells <dhowells@redhat.com> Signed-off-by:
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MITSUNARI Shigeo authored
We found that bdev->bd_invalidated was left set once revalidate_disk() is called, which results in page cache flush every time that device is open. Specifically, we found this problem in MD block device. Once we resize a MD device, mdadm --monitor periodically flush all page cache for that device every 60 or 1000 seconds when it opens the device. This bug lies since at least 3.2.0 till the latest kernel(3.6.2). Patch is attached. The following steps will reproduce the problem. 1. prepair a block device (eg /dev/sdb). 2. create two partitions: sudo parted /dev/sdb mklabel gpt mkpart primary 0% 50% mkpart primary 50% 100% 3. create a md device. sudo mdadm -C /dev/md/hoge -l 1 -n 2 -e 1.2 --assume-clean --auto=md --symlink=no /dev/sdb1 /dev/sdb2 4. create file system and mount it sudo mkfs.ext3 /dev/md/hoge sudo mkdir /mnt/test sudo mount /dev/md/hoge /mnt/test 5. try to resize the device sudo mdadm -G /dev/md/hoge --size=max 6. create a file to fill file cache. sudo dd if=/dev/urandom of=/mnt/test/data bs=1M count=10 and verify the current status of file by free command. 7. mdadm monitor will open the md device every 1000 seconds and you will find all file cache on the device are cleared. The timing can be reduced by the following steps. a) kill mdadm and restart it with --delay option /sbin/mdadm --monitor --delay=30 --pid-file /var/run/mdadm/monitor.pid --daemonise --scan --syslog or open the md device directly. sudo dd if=/dev/md/hoge of=/dev/null bs=4096 count=1 Signed-off-by:
MITSUNARI Shigeo <herumi@nifty.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Jim Somerville authored
Running the command: inotifywait -e unmount /mnt/disk immediately aborts with a -EINVAL return code. This is however a valid parameter. This abort occurs only if unmount is the sole event parameter. If other event parameters are supplied, then the unmount event wait will work. The problem was introduced by commit 44b350fc ("inotify: Fix mask checks"). In that commit, it states: The mask checks in inotify_update_existing_watch() and inotify_new_watch() are useless because inotify_arg_to_mask() sets FS_IN_IGNORED and FS_EVENT_ON_CHILD bits anyway. But instead of removing the useless checks, it did this: mask = inotify_arg_to_mask(arg); - if (unlikely(!mask)) + if (unlikely(!(mask & IN_ALL_EVENTS))) return -EINVAL; The problem is that IN_ALL_EVENTS doesn't include IN_UNMOUNT, and other parts of the code keep IN_UNMOUNT separate from IN_ALL_EVENTS. So the check should be: if (unlikely(!(mask & (IN_ALL_EVENTS | IN_UNMOUNT)))) But inotify_arg_to_mask(arg) always sets the IN_UNMOUNT bit in the mask anyway, so the check is always going to pass and thus should simply be removed. Also note that inotify_arg_to_mask completely controls what mask bits get set from arg, there's no way for invalid bits to get enabled there. Lets fix it by simply removing the useless broken checks. Signed-off-by:
Jim Somerville <Jim.Somerville@windriver.com> Signed-off-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: John McCutchan <john@johnmccutchan.com> Cc: Robert Love <rlove@rlove.org> Cc: Eric Paris <eparis@parisplace.org> Cc: <stable@vger.kernel.org> [2.6.37+] Signed-off-by:
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Dan Carpenter authored
The copy_to_user() call returns the number of bytes remaining but we want to return -EFAULT on error. Fixes "x32: fix waitid()" Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Daniel Santos authored
Introduce compiletime_assert to compiler.h, which moves the details of how to break a build and emit an error message for a specific compiler to the headers where these details should be. Following in the tradition of the POSIX assert macro, compiletime_assert creates a build-time error when the supplied condition is *false*. Next, we add BUILD_BUG_ON_MSG to bug.h which simply wraps compiletime_assert, inverting the logic, so that it fails when the condition is *true*, consistent with the language "build bug on." This macro allows you to specify the error message you want emitted when the supplied condition is true. Finally, we remove all other code from bug.h that mucks with these details (BUILD_BUG & BUILD_BUG_ON), and have them all call BUILD_BUG_ON_MSG. This not only reduces source code bloat, but also prevents the possibility of code being changed for one macro and not for the other (which was previously the case for BUILD_BUG and BUILD_BUG_ON). Since __compiletime_error_fallback is now only used in compiler.h, I'm considering it a private macro and removing the double negation that's now extraneous. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by:
Daniel Santos <daniel.santos@pobox.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: David Rientjes <rientjes@google.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
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Daniel Santos authored
Prior to the introduction of __attribute__((error("msg"))) in gcc 4.3, creating compile-time errors required a little trickery. BUILD_BUG{,_ON} uses this attribute when available to generate compile-time errors, but also uses the negative-sized array trick for older compilers, resulting in two error messages in some cases. The reason it's "some" cases is that as of gcc 4.4, the negative-sized array will not create an error in some situations, like inline functions. This patch replaces the negative-sized array code with the new __compiletime_error_fallback() macro which expands to the same thing unless the the error attribute is available, in which case it expands to do{}while(0), resulting in exactly one compile-time error on all versions of gcc. Note that we are not changing the negative-sized array code for the unoptimized version of BUILD_BUG_ON, since it has the potential to catch problems that would be disabled in later versions of gcc were __compiletime_error_fallback used. The reason is that that an unoptimized build can't always remove calls to an error-attributed function call (like we are using) that should effectively become dead code if it were optimized. However, using a negative-sized array with a similar value will not result in an false-positive (error). The only caveat being that it will also fail to catch valid conditions, which we should be expecting in an unoptimized build anyway. Signed-off-by: -
Daniel Santos authored
Negative sized arrays wont create a compile-time error in some cases starting with gcc 4.4 (e.g., inlined functions), but gcc 4.3 introduced the error function attribute that will. This patch modifies BUILD_BUG_ON to behave like BUILD_BUG already does, using the error function attribute so that you don't have to build the entire kernel to discover that you have a problem, and then enjoy trying to track it down from a link-time error. Also, we are only including asm/bug.h and then expecting that linux/compiler.h will eventually be included to define __linktime_error (used in BUILD_BUG_ON). This patch includes it directly for clarity and to avoid the possibility of changes in <arch>/*/include/asm/bug.h being changed or not including linux/compiler.h for some reason. Signed-off-by:
Borislav Petkov <bp@alien8.de> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Rientjes <rientjes@google.com> Cc: Joe Perches <joe@perches.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
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Daniel Santos authored
When calling BUILD_BUG_ON in an optimized build using gcc 4.3 and later, the condition will be evaulated twice, possibily with side-effects. This patch eliminates that error. [akpm@linux-foundation.org: tweak code layout] Signed-off-by:
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Daniel Santos authored
When __CHECKER__ is defined, we disable all of the BUILD_BUG.* macros. However, both BUILD_BUG_ON_NOT_POWER_OF_2 and BUILD_BUG_ON was evaluating to nothing in this case, and we want (0) since this is a function-like macro that will be followed by a semicolon. Signed-off-by:
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Daniel Santos authored
__linktime_error() does the same thing as __compiletime_error() and is only used in bug.h. Since the macro defines a function attribute that will cause a failure at compile-time (not link-time), it makes more sense to keep __compiletime_error(), which is also neatly mated with __compiletime_warning(). Signed-off-by:
David Rientjes <rientjes@google.com> Acked-by:
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Daniel Santos authored
Using GCC_VERSION reduces complexity, is easier to read and is GCC's recommended mechanism for doing version checks. (Just don't ask me why they didn't define it in the first place.) This also makes it easy to merge compiler-gcc{,3,4}.h should somebody want to. Signed-off-by: -
Daniel Santos authored
Throughout compiler*.h, many version checks are made. These can be simplified by using the macro that gcc's documentation recommends. However, my primary reason for adding this is that I need bug-check macros that are enabled at certain gcc versions and it's cleaner to use this macro than the tradition method: #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ => 2) If you add patch level, it gets this ugly: #if __GNUC__ > 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ > 2 || \ __GNUC_MINOR__ == 2 __GNUC_PATCHLEVEL__ >= 1)) As opposed to: #if GCC_VERSION >= 40201 While having separate headers for gcc 3 & 4 eliminates some of this verbosity, they can still be cleaned up by this. See also: http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.htmlSigned-off-by: -
Daniel Santos authored
This helps to keep the file from getting confusing, removes one duplicate version check and should encourage future editors to put new macros where they belong. Signed-off-by:
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Jerry Snitselaar authored
Commit 103a197c ("security/device_cgroup: lock assert fails in dev_exception_clean()") grabs devcgroup_mutex to fix assert failure, but a mutex can't be grabbed in rcu callback. Since there shouldn't be any other references when css_free is called, mutex isn't needed for list cleanup in devcgroup_css_free(). Signed-off-by:
Jerry Snitselaar <jerry.snitselaar@oracle.com> Acked-by:
Tejun Heo <tj@kernel.org> Acked-by:
Aristeu Rozanski <aris@redhat.com> Cc: James Morris <james.l.morris@oracle.com> Signed-off-by:
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- 21 Feb, 2013 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linuxLinus Torvalds authored
Pull pstore patches from Tony Luck: "A few fixes to reduce places where pstore might hang a system in the crash path. Plus a new mountpoint (/sys/fs/pstore ... makes more sense then /dev/pstore)." Fix up trivial conflict in drivers/firmware/efivars.c * tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore: Create a convenient mount point for pstore efi_pstore: Introducing workqueue updating sysfs efivars: Disable external interrupt while holding efivars->lock efi_pstore: Avoid deadlock in non-blocking paths pstore: Avoid deadlock in panic and emergency-restart path
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