- 17 7月, 2014 15 次提交
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由 Laurent Pinchart 提交于
When set, the new V4L2_PIX_FMT_FLAG_PREMUL_ALPHA flag indicates that the pixel values are premultiplied by the alpha channel value. Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Laurent Pinchart 提交于
The v4l2_pix_format structure has no reserved field. It is embedded in the v4l2_framebuffer structure which has no reserved fields either, and in the v4l2_format structure which has reserved fields that were not previously required to be zeroed out by applications. To allow extending v4l2_pix_format, inline it in the v4l2_framebuffer structure, and use the priv field as a magic value to indicate that the application has set all v4l2_pix_format extended fields and zeroed all reserved fields following the v4l2_pix_format field in the v4l2_format structure. The availability of this API extension is reported to userspace through the new V4L2_CAP_EXT_PIX_FORMAT capability flag. Just checking that the priv field is still set to the magic value at [GS]_FMT return wouldn't be enough, as older kernels don't zero the priv field on return. To simplify the internal API towards drivers zero the extended fields and set the priv field to the magic value for applications not aware of the extensions. Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Laurent Pinchart 提交于
Extend the V4L2_CID_ALPHA_COMPONENT control for use on output devices, to set the alpha component value when the output format doesn't have an alpha channel. Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Laurent Pinchart 提交于
The existing RGB pixel formats are ill-defined in respect to their alpha bits and their meaning is driver dependent. Create new standard ARGB and XRGB variants with clearly defined meanings and make the existing variants deprecated. The new pixel formats 4CC values have been selected to match the DRM 4CCs for the same in-memory formats. Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Removed the "This type is only used-in array controls." sentence in DocBook which was thought to only confuse. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Document the new motion detection event. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Document the 'Detect' control class and the new Motion Detection controls. Those controls will be used by the solo6x10 and go7007 drivers. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
These types are needed for the upcoming Motion Detection matrix controls, so document them. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
The way current and new values are accessed has changed. Update the document to bring it up to date with the code. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Document the support for compound types in controls. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Improve the control section: - Clarify the handling of private controls - Explain the V4L2_CTRL_FLAG_INACTIVE flag - Remove obsolete text regarding missing control event (we have them today) and the incorrect V4L2_CTRL_FLAG_DISABLED reference. - Add a code example on how to enumerate over user controls. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Reviewed-by: NSylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Use the proper kernel coding style in these examples. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Document the support for the new compound type controls. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Document the new VIDIOC_QUERY_EXT_CTRL ioctl. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
Rather than having two unions for all types just keep 'val' and 'cur.val' and use the p_cur and p_new unions to access all others. The only reason for keeping 'val' and 'cur.val' is that it is used all over, so converting this as well would be a huge job. Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 13 7月, 2014 4 次提交
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由 Pali Rohár 提交于
Dell kernel driver dell-smo8800 provides same freefall interface as hp_accel so program hpfall.c works also on Dell laptops. So rename it to freefall.c. Dell driver does not provide hp::hddprotect led so make sure that freefall.c works also if hp::hddprotect does not exist in sysfs. Additionally write info to syslog. Signed-off-by: NPali Rohár <pali.rohar@gmail.com> Cc: Sonal Santan <sonal.santan@gmail.com> Acked-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Masanari Iida 提交于
This patch fixed spelling typo in various template files within Documentation/Docbook. Signed-off-by: NMasanari Iida <standby24x7@gmail.com> Signed-off-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Masanari Iida 提交于
This patch fixed spelling typo found in DocBook/mtdnand.tmpl. Signed-off-by: NMasanari Iida <standby24x7@gmail.com> Signed-off-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Paul Bolle 提交于
The paragraph on mcelog currently describes kernel v2.6.31. In that kernel the mce code (for i386, that is) was in transition. Ever since v2.6.32 the situation is much simpler (eg, mcelog is now needed to process events on almost all x86 machines, i386 and x86-64). Since this "document is designed to provide a list of the minimum levels of software necessary to run the 3.0 kernels" let's just describe that situation. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Acked-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 7月, 2014 1 次提交
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由 Simon Horman 提交于
Simply document new compat strings. There appears to be no need for a driver updates. Signed-off-by: NSimon Horman <horms+renesas@verge.net.au> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 11 7月, 2014 1 次提交
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由 Prathyush K 提交于
While powering on/off a local powerdomain in exynos5 chipsets, the input clocks to each device gets modified. This behaviour is based on the SYSCLK_SYS_PWR_REG registers. E.g. SYSCLK_MFC_SYS_PWR_REG = 0x0, the parent of input clock to MFC (aclk333) gets modified to oscclk = 0x1, no change in clocks. The recommended value of SYSCLK_SYS_PWR_REG before power gating any domain is 0x0. So we must also restore the clocks while powering on a domain everytime. This patch adds the framework for getting the required mux and parent clocks through a power domain device node. With this patch, while powering off a domain, parent is set to oscclk and while powering back on, its re-set to the correct parent which is as per the recommended pd on/off sequence. Signed-off-by: NPrathyush K <prathyush.k@samsung.com> Signed-off-by: NAndrew Bresticker <abrestic@chromium.org> Signed-off-by: NArun Kumar K <arun.kk@samsung.com> Signed-off-by: NShaik Ameer Basha <shaik.ameer@samsung.com> Reviewed-by: NTomasz Figa <t.figa@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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- 07 7月, 2014 1 次提交
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由 Dirk Brandewie 提交于
Update documentation to make the interpretation of the values clearer Link: https://bugzilla.kernel.org/show_bug.cgi?id=64251 Cc: 3.13+ <stable@vger.kernel.org> # 3.13+ Signed-off-by: NDirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 05 7月, 2014 3 次提交
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The V4L2_FL_USE_FH_PRIO has been removed from the code, now remove it from the documentation. Signed-off-by: NRamakrishnan Muthukrishnan <ramakrmu@cisco.com> Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Hans Verkuil 提交于
know -> known Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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由 Alexander Bersenev 提交于
This patch adds documentation for Device-Tree bindings for sunxi IR controller. Signed-off-by: NAlexander Bersenev <bay@hackerdom.ru> Signed-off-by: NAlexsey Shestacov <wingrime@linux-sunxi.org> [hdegoede@redhat.com: Changed compatible to sun4i-a10-ir] Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
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- 04 7月, 2014 1 次提交
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由 Chen Yucong 提交于
When using trace-vmscan-postprocess.pl for checking the file/anon rate of scanning, we can find that it can not be performed. At the same time, the following message will be reported: WARNING: Format not as expected for event vmscan/mm_vmscan_lru_isolate 'file' != 'contig_taken' Fewer fields than expected in format at ./trace-vmscan-postprocess.pl line 171, <FORMAT> line 76. In trace-vmscan-postprocess.pl, (contig_taken, contig_dirty, and contig_failed) are be associated respectively to (nr_lumpy_taken, nr_lumpy_dirty, and nr_lumpy_failed) for lumpy reclaim. Via commit c53919ad ("mm: vmscan: remove lumpy reclaim"), lumpy reclaim had already been removed by Mel, but the update for trace-vmscan-postprocess.pl was missed. Signed-off-by: NChen Yucong <slaoub@gmail.com> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 30 6月, 2014 1 次提交
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由 Dan Carpenter 提交于
These days most people use git to send patches so I have added a section about that. Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 29 6月, 2014 1 次提交
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由 Thomas Petazzoni 提交于
When a PL310 cache is used on a system that provides hardware coherency, the outer cache sync operation is useless, and can be skipped. Moreover, on some systems, it is harmful as it causes deadlocks between the Marvell coherency mechanism, the Marvell PCIe controller and the Cortex-A9. To avoid this, this commit introduces a new Device Tree property 'arm,io-coherent' for the L2 cache controller node, valid only for the PL310 cache. It identifies the usage of the PL310 cache in an I/O coherent configuration. Internally, it makes the driver disable the outer cache sync operation. Note that technically speaking, a fully coherent system wouldn't require any of the other .outer_cache operations. However, in practice, when booting secondary CPUs, these are not yet coherent, and therefore a set of cache maintenance operations are necessary at this point. This explains why we keep the other .outer_cache operations and only ->sync is disabled. While in theory any write to a PL310 register could cause the deadlock, in practice, disabling ->sync is sufficient to workaround the deadlock, since the other cache maintenance operations are only used in very specific situations. Contrary to previous versions of this patch, this new version does not simply NULL-ify the ->sync member, because the l2c_init_data structures are now 'const' and therefore cannot be modified, which is a good thing. Therefore, this patch introduces a separate l2c_init_data instance, called of_l2c310_coherent_data. Signed-off-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 25 6月, 2014 3 次提交
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由 Takashi Iwai 提交于
HP Spectre 13 has the IDT 92HD95 codec, and BIOS seems to set the default high-pass filter in some "safer" range, which results in the very soft tone from the built-in speakers in contrast to Windows. Also, the mute LED control is missing, since 92HD95 codec still has no HP-specific fixups for GPIO setups. This patch adds these missing features: the HPF is adjusted by the vendor-specific verb, and the LED is set up from a DMI string (but with the default polarity = 0 assumption due to the incomplete BIOS on the given machine). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=74841 Cc: <stable@vger.kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Naveen Krishna Chatradhi 提交于
Murata Manufacturing Co., Ltd is the vendor for NTC (Negative Temperature coefficient) based Thermistors. But, the driver extensively uses "NTC" as the vendor name. This patch corrects the vendor name also updates the compatibility strings according to the vendor-prefix.txt Note: Drivers continue to support the previous compatible strings but further addition of these compatible strings in device tree is deprecated. Signed-off-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com> Reviewed-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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由 Naveen Krishna Chatradhi 提交于
Add Murata Manufacturing Co., Ltd. to the list of device tree vendor prefixes. Murata manufactures NTC (Negative Temperature Coefficient) based Thermistors for small scale applications like Mobiles and PDAs. Signed-off-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com> Acked-by: NMark Rutland <mark.rutland@arm.com> Signed-off-by: NGuenter Roeck <linux@roeck-us.net>
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- 24 6月, 2014 5 次提交
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由 Gregory CLEMENT 提交于
Wildcards in compatible strings should be avoid. "marvell,armada38x" was recently introduced but was not yet used. The armada 385 SoC is a superset of the armada 380 SoC (with more CPUs and more PCIe slots). So this patch replaces the use of "marvell,armada38x" by the "marvell,armada380" string. Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1403533011-21339-1-git-send-email-gregory.clement@free-electrons.comAcked-by: NAndrew Lunn <andrew@lunn.ch> Cc: <stable@vger.kernel.org> # v3.15+ Signed-off-by: NJason Cooper <jason@lakedaemon.net>
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由 Aaron Tomlin 提交于
A 'softlockup' is defined as a bug that causes the kernel to loop in kernel mode for more than a predefined period to time, without giving other tasks a chance to run. Currently, upon detection of this condition by the per-cpu watchdog task, debug information (including a stack trace) is sent to the system log. On some occasions, we have observed that the "victim" rather than the actual "culprit" (i.e. the owner/holder of the contended resource) is reported to the user. Often this information has proven to be insufficient to assist debugging efforts. To avoid loss of useful debug information, for architectures which support NMI, this patch makes it possible to improve soft lockup reporting. This is accomplished by issuing an NMI to each cpu to obtain a stack trace. If NMI is not supported we just revert back to the old method. A sysctl and boot-time parameter is available to toggle this feature. [dzickus@redhat.com: add CONFIG_SMP in certain areas] [akpm@linux-foundation.org: additional CONFIG_SMP=n optimisations] [mq@suse.cz: fix warning] Signed-off-by: NAaron Tomlin <atomlin@redhat.com> Signed-off-by: NDon Zickus <dzickus@redhat.com> Cc: David S. Miller <davem@davemloft.net> Cc: Mateusz Guzik <mguzik@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: NJan Moskyto Matejka <mq@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Rickard Strandqvist 提交于
Added a guaranteed null-terminate after call to strncpy. This was partly found using a static code analysis program called cppcheck. Signed-off-by: NRickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Acked-by: NKees Cook <keescook@chromium.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Rientjes 提交于
Oleg reports a division by zero error on zero-length write() to the percpu_pagelist_fraction sysctl: divide error: 0000 [#1] SMP DEBUG_PAGEALLOC CPU: 1 PID: 9142 Comm: badarea_io Not tainted 3.15.0-rc2-vm-nfs+ #19 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 task: ffff8800d5aeb6e0 ti: ffff8800d87a2000 task.ti: ffff8800d87a2000 RIP: 0010: percpu_pagelist_fraction_sysctl_handler+0x84/0x120 RSP: 0018:ffff8800d87a3e78 EFLAGS: 00010246 RAX: 0000000000000f89 RBX: ffff88011f7fd000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000010 RBP: ffff8800d87a3e98 R08: ffffffff81d002c8 R09: ffff8800d87a3f50 R10: 000000000000000b R11: 0000000000000246 R12: 0000000000000060 R13: ffffffff81c3c3e0 R14: ffffffff81cfddf8 R15: ffff8801193b0800 FS: 00007f614f1e9740(0000) GS:ffff88011f440000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f614f1fa000 CR3: 00000000d9291000 CR4: 00000000000006e0 Call Trace: proc_sys_call_handler+0xb3/0xc0 proc_sys_write+0x14/0x20 vfs_write+0xba/0x1e0 SyS_write+0x46/0xb0 tracesys+0xe1/0xe6 However, if the percpu_pagelist_fraction sysctl is set by the user, it is also impossible to restore it to the kernel default since the user cannot write 0 to the sysctl. This patch allows the user to write 0 to restore the default behavior. It still requires a fraction equal to or larger than 8, however, as stated by the documentation for sanity. If a value in the range [1, 7] is written, the sysctl will return EINVAL. This successfully solves the divide by zero issue at the same time. Signed-off-by: NDavid Rientjes <rientjes@google.com> Reported-by: NOleg Drokin <green@linuxhacker.ru> Cc: <stable@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Rientjes 提交于
Documentation/memory-hotplug.txt incorrectly states that the memory driver "probe" interface is only supported on powerpc and is vague about its application on x86. Clarify the platforms that make this interface available if memory hotplug is enabled. Signed-off-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 6月, 2014 1 次提交
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由 Andy Gross 提交于
This patch removes the chip select function. Chip select should instead be supported using GPIOs, defining the DT entry "cs-gpios", and letting the SPI core assert/deassert the chip select as it sees fit. The chip select control inside the controller is buggy. It is supposed to automatically assert the chip select based on the activity in the controller, but it is buggy and doesn't work at all. So instead we elect to use GPIOs. Signed-off-by: NAndy Gross <agross@codeaurora.org> Signed-off-by: NMark Brown <broonie@linaro.org>
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- 19 6月, 2014 2 次提交
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由 Masahiro Yamada 提交于
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: NMichal Marek <mmarek@suse.cz>
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由 Michal Marek 提交于
After commits 890676c6 (kbuild: Use relative path when building in the source tree) and 9da0763b (kbuild: Use relative path when building in a subdir of the source tree), the $(srctree) variable can be a relative path. This breaks Documentation/DocBook/media/Makefile, because it tries to create symlinks from a subdirectory of the object tree to the source tree. Fix this by using a full path in this case. Reported-by: NRandy Dunlap <rdunlap@infradead.org> Acked-by: NRandy Dunlap <rdunlap@infradead.org> Tested-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NMichal Marek <mmarek@suse.cz>
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- 17 6月, 2014 1 次提交
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由 Martin Peres 提交于
Changes: - Change the maintainer's address (the labri address will expire soon); - Drop the note about not all families supporting all fan modes; - Add a note about the reported RPM not being accurate when driven outside the vbios-defined PWM range. Signed-off-by: NMartin Peres <martin.peres@free.fr> Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
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