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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes
From Linus Walleij, Ux500 fixes for the v3.13 series:
- Restore platform data for the (e)MMC/SD controllers, so they can
pins and special flags properly like before.
* tag 'ux500-fixes-v3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
Revert "ARM: ux500: Stop passing MMC's platform data for Device Tree boots"
Revert "ARM: ux500: Remove AUXDATA relating to SDI (MMC) clock-name bindings"
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This reverts commit 49c129519a7a8840767321c38d2eaf84a263529b.
The special settings for the SD/MMC card parameters that are not
yet fully agreed upon how to encode into the device tree went missing
with this commit. We need to first put it into the device tree,
and then remove the platform data.
Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This reverts commit ce16feb8510cbbcd090c2320c35db2fbbffde210.
This commit stopped tying down the name of the MMC/SD devices, but these
names are used in the pin control table, so the MMC/SD cards stopped
working.
Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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With the commit d3f2950f2adeea3da0317e952914b59adaa4cdb3, the option
ARM_U8500_CPUIDLE was added to the Kconfig but not reflected in the
default config file, hence the cpuidle driver is no longer enabled
since this commit.
Enable it again by adding the missing option in the default config file.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This patch enables CONFIG_DETTMPFS and CONFIG_DEVTMPFS_MOUNT
flags for u8500 based devices.
In this way it's possible to create a tmpfs/ramfs already in the
early stages of the boot, allowing programs like udev/mdev to
populate the /dev directory.
Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Mostly bugfixes and a few small code removals. Worth pointing out is:
- A handful of more fixes to get DT enablement working properly on
OMAP, finding new breakage of things that don't work quite right
yet without the traditional board files. I expect a bit more of
this to come in this release as people test on their hardware.
- Implementation of power_down_finish() on vexpress, to make kexec
work and to stop the MCPM core to produce a warning (the warning
was new to 3.13-rc1).
- A handful of minor fixes for various platforms"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: bcm2835: add missing #xxx-cells to I2C nodes
ARM: dts: Add max77686 RTC interrupt to cros5250-common
ARM: vexpress/TC2: Implement MCPM power_down_finish()
ARM: tegra: Provide dummy powergate implementation
ARM: omap: fix warning with LPAE build
ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
ARM: OMAP2+: Remove legacy mux code for display.c
ARM: OMAP2+: Fix undefined reference to set_cntfreq
gpio: twl4030: Fix passing of pdata in the device tree case
gpio: twl4030: Fix regression for twl gpio output
ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
ARM: dts: imx6qdl: disable spdif "rxtx5" clock option
ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
i2c: omap: Fix missing device tree flags for omap2
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull IMA fixes from James Morris:
"These three patches fix regressions in the IMA code in your current
tree.
The first fixes a couple of bugs in template_desc_init_fields(), and
the other two ensure that changes in this kernel don't break
userspace"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
ima: make a copy of template_fmt in template_desc_init_fields()
ima: do not send field length to userspace for digest of ima template
ima: do not include field length in template digest calc for ima template
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Pull non-transparent bridge updates from Jon Mason:
"NTB driver bug fixes to address a missed call to pci_enable_msix,
NTB-RP Link Up issue, Xeon Doorbell errata workaround, ntb_transport
link down race, and correct dmaengine_get/put usage.
Also, clean-ups to remove duplicate defines and document a hardware
errata. Finally, some changes to improve performance"
* tag 'ntb-3.13' of git://github.com/jonmason/ntb:
NTB: Disable interrupts and poll under high load
NTB: Enable Snoop on Primary Side
NTB: Document HW errata
NTB: remove duplicate defines
NTB: correct dmaengine_get/put usage
NTB: Fix ntb_transport link down race
ntb: Fix missed call to pci_enable_msix()
NTB: Fix NTB-RP Link Up
NTB: Xeon Doorbell errata workaround
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Commit f62805f1 introduced a bug where lazy MMU mode isn't exited if a
m2p_add/remove_override call fails.
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Anthony Liguori <aliguori@amazon.com>
Cc: xen-devel@lists.xenproject.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Matt Wilson <msw@amazon.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: stable@vger.kernel.org
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git://git.linaro.org/people/dlezcano/linux into timers/urgent
* Hide event stream Kconfig option for the arch_arm_timer for ARM=n
* Fix a missing a clk_put in case the registering of the sh_mtu[2] drivers fails.
* Reuse clockevents_config_and_register for the at91rm9200_time timer
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Otherwise RPCSEC_GSS_DESTROY messages are not sent.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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In the blkif_release function the bdget_disk() call might returns
a NULL ptr which might be dereferenced on bdev->bd_openers checking
Signed-off-by: Felipe Pena <felipensp@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v2: Added WARN per Roger's suggestion]
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pfn cannot actually be used unless (!info->feature_persistent), nor is
pfn accessed in get_grant() unless (!info->feature_persistent), but silence
this warning anyway. gcc-4.8
drivers/block/xen-blkfront.c: In function 'do_blkif_request':
drivers/block/xen-blkfront.c:508:20: warning: 'pfn' may be used uninitialized in this function [-Wmaybe-uninitialized]
gnt_list_entry = get_grant(&gref_head, pfn, info);
^
drivers/block/xen-blkfront.c:492:19: note: 'pfn' was declared here
unsigned long pfn;
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
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Commit 8c4f3c3fa9681 "ftrace: Check module functions being traced on reload"
fixed module loading and unloading with respect to function tracing, but
it missed the function graph tracer. If you perform the following
# cd /sys/kernel/debug/tracing
# echo function_graph > current_tracer
# modprobe nfsd
# echo nop > current_tracer
You'll get the following oops message:
------------[ cut here ]------------
WARNING: CPU: 2 PID: 2910 at /linux.git/kernel/trace/ftrace.c:1640 __ftrace_hash_rec_update.part.35+0x168/0x1b9()
Modules linked in: nfsd exportfs nfs_acl lockd ipt_MASQUERADE sunrpc ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables uinput snd_hda_codec_idt
CPU: 2 PID: 2910 Comm: bash Not tainted 3.13.0-rc1-test #7
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS SDBLI944.86P 05/08/2007
0000000000000668 ffff8800787efcf8 ffffffff814fe193 ffff88007d500000
0000000000000000 ffff8800787efd38 ffffffff8103b80a 0000000000000668
ffffffff810b2b9a ffffffff81a48370 0000000000000001 ffff880037aea000
Call Trace:
[<ffffffff814fe193>] dump_stack+0x4f/0x7c
[<ffffffff8103b80a>] warn_slowpath_common+0x81/0x9b
[<ffffffff810b2b9a>] ? __ftrace_hash_rec_update.part.35+0x168/0x1b9
[<ffffffff8103b83e>] warn_slowpath_null+0x1a/0x1c
[<ffffffff810b2b9a>] __ftrace_hash_rec_update.part.35+0x168/0x1b9
[<ffffffff81502f89>] ? __mutex_lock_slowpath+0x364/0x364
[<ffffffff810b2cc2>] ftrace_shutdown+0xd7/0x12b
[<ffffffff810b47f0>] unregister_ftrace_graph+0x49/0x78
[<ffffffff810c4b30>] graph_trace_reset+0xe/0x10
[<ffffffff810bf393>] tracing_set_tracer+0xa7/0x26a
[<ffffffff810bf5e1>] tracing_set_trace_write+0x8b/0xbd
[<ffffffff810c501c>] ? ftrace_return_to_handler+0xb2/0xde
[<ffffffff811240a8>] ? __sb_end_write+0x5e/0x5e
[<ffffffff81122aed>] vfs_write+0xab/0xf6
[<ffffffff8150a185>] ftrace_graph_caller+0x85/0x85
[<ffffffff81122dbd>] SyS_write+0x59/0x82
[<ffffffff8150a185>] ftrace_graph_caller+0x85/0x85
[<ffffffff8150a2d2>] system_call_fastpath+0x16/0x1b
---[ end trace 940358030751eafb ]---
The above mentioned commit didn't go far enough. Well, it covered the
function tracer by adding checks in __register_ftrace_function(). The
problem is that the function graph tracer circumvents that (for a slight
efficiency gain when function graph trace is running with a function
tracer. The gain was not worth this).
The problem came with ftrace_startup() which should always be called after
__register_ftrace_function(), if you want this bug to be completely fixed.
Anyway, this solution moves __register_ftrace_function() inside of
ftrace_startup() and removes the need to call them both.
Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Fixes: ed926f9b35cd ("ftrace: Use counters to enable functions to trace")
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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If an TRACE_EVENT() uses __assign_str() or __get_str on a NULL pointer
then the following oops will happen:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<c127a17b>] strlen+0x10/0x1a
*pde = 00000000 ^M
Oops: 0000 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.13.0-rc1-test+ #2
Hardware name: /DG965MQ, BIOS MQ96510J.86A.0372.2006.0605.1717 06/05/2006^M
task: f5cde9f0 ti: f5e5e000 task.ti: f5e5e000
EIP: 0060:[<c127a17b>] EFLAGS: 00210046 CPU: 1
EIP is at strlen+0x10/0x1a
EAX: 00000000 EBX: c2472da8 ECX: ffffffff EDX: c2472da8
ESI: c1c5e5fc EDI: 00000000 EBP: f5e5fe84 ESP: f5e5fe80
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0: 8005003b CR2: 00000000 CR3: 01f32000 CR4: 000007d0
Stack:
f5f18b90 f5e5feb8 c10687a8 0759004f 00000005 00000005 00000005 00200046
00000002 00000000 c1082a93 f56c7e28 c2472da8 c1082a93 f5e5fee4 c106bc61^M
00000000 c1082a93 00000000 00000000 00000001 00200046 00200082 00000000
Call Trace:
[<c10687a8>] ftrace_raw_event_lock+0x39/0xc0
[<c1082a93>] ? ktime_get+0x29/0x69
[<c1082a93>] ? ktime_get+0x29/0x69
[<c106bc61>] lock_release+0x57/0x1a5
[<c1082a93>] ? ktime_get+0x29/0x69
[<c10824dd>] read_seqcount_begin.constprop.7+0x4d/0x75
[<c1082a93>] ? ktime_get+0x29/0x69^M
[<c1082a93>] ktime_get+0x29/0x69
[<c108a46a>] __tick_nohz_idle_enter+0x1e/0x426
[<c10690e8>] ? lock_release_holdtime.part.19+0x48/0x4d
[<c10bc184>] ? time_hardirqs_off+0xe/0x28
[<c1068c82>] ? trace_hardirqs_off_caller+0x3f/0xaf
[<c108a8cb>] tick_nohz_idle_enter+0x59/0x62
[<c1079242>] cpu_startup_entry+0x64/0x192
[<c102299c>] start_secondary+0x277/0x27c
Code: 90 89 c6 89 d0 88 c4 ac 38 e0 74 09 84 c0 75 f7 be 01 00 00 00 89 f0 48 5e 5d c3 55 89 e5 57 66 66 66 66 90 83 c9 ff 89 c7 31 c0 <f2> ae f7 d1 8d 41 ff 5f 5d c3 55 89 e5 57 66 66 66 66 90 31 ff
EIP: [<c127a17b>] strlen+0x10/0x1a SS:ESP 0068:f5e5fe80
CR2: 0000000000000000
---[ end trace 01bc47bf519ec1b2 ]---
New tracepoints have been added that have allowed for NULL pointers
being assigned to strings. To fix this, change the TRACE_EVENT() code
to check for NULL and if it is, it will assign "(null)" to it instead
(similar to what glibc printf does).
Reported-by: Shuah Khan <shuah.kh@samsung.com>
Reported-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Link: http://lkml.kernel.org/r/CAGdX0WFeEuy+DtpsJzyzn0343qEEjLX97+o1VREFkUEhndC+5Q@mail.gmail.com
Link: http://lkml.kernel.org/r/528D6972.9010702@samsung.com
Fixes: 9cbf117662e2 ("tracing/events: provide string with undefined size support")
Cc: stable@vger.kernel.org # 2.6.31+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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If both CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME are not set:
drivers/video/sh_mobile_meram.c:573: warning: ‘sh_mobile_meram_suspend’ defined but not used
drivers/video/sh_mobile_meram.c:597: warning: ‘sh_mobile_meram_resume’ defined but not used
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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kyro would copy u32s and specify sizeof(unsigned long) as the size to copy.
This would copy more data than intended and cause memory corruption and might
leak kernel memory.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The flexcan IP core uses the peripheral clock ("per") as basic clock for the
bit timing calculation. However the driver uses the the wrong clock ("ipg").
This leads to wrong bit rates if the rates on both clock are different.
This patch fixes the problem by using the correct clock for the bit rate
calculation.
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Correct a typo that prevented the driver from being built as a module.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Tim Kryger <tim.kryger@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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linuxnext currently doesn't compile with the powerpc mpc85xx_defconfig
giving:
drivers/crypto/caam/jr.c: In function 'caam_jr_probe':
drivers/crypto/caam/jr.c:468:2: error: implicit declaration of function 'of_iomap' [-Werror=implicit-function-declaration]
In:
commit 313ea293e9c4d1eabcaddd2c0800f083b03c2a2e
Author: Ruchika Gupta <ruchika.gupta@freescale.com>
crypto: caam - Add Platform driver for Job Ring
We added a reference to of_iomap but did add the necessary include file.
The below adds this include.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The previous diolan adapter uses other out/in endpoints than
the current DLN-2-U2C in compatibility mode.
They changed from 0x2/0x84 to 0x3/0x83.
This patch gets the endpoints from the usb interface, instead
of hardcode them in the driver.
This was tested on a current DLN-2-U2C board.
Signed-off-by: Martin Vogt <mvogt1@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Use bus->power_keep_link_on instead. The controller shouldn't go to
D3 when the link isn't reset, so essentially avoiding the link reset
means avoiding the runtime PM.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Set the missing pcbeep default amp for ALC668.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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It's compatible with ALC269.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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I2C IP block expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.
Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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When booting Nokia N900 smartphone with v3.12 + omap2plus_defconfig
(LOCKDEP enabled) and CONFIG_DISPLAY_PANEL_SONY_ACX565AKM enabled,
the following BUG is seen during the boot:
[ 7.302154] =====================================
[ 7.307128] [ BUG: bad unlock balance detected! ]
[ 7.312103] 3.12.0-los.git-2093492-00120-g5e01dc7 #3 Not tainted
[ 7.318450] -------------------------------------
[ 7.323425] kworker/u2:1/12 is trying to release lock (&ddata->mutex) at:
[ 7.330657] [<c031b760>] acx565akm_enable+0x12c/0x18c
[ 7.335998] but there are no more locks to release!
Fix by removing double unlock and handling the locking completely inside
acx565akm_panel_power_on() when doing the power on.
Reported-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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The I2C controller node needs #address-cells and #size-cells properties,
but these are currently missing. Add them. This allows child nodes to be
parsed correctly.
Cc: stable@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Follow-up to commit 294d31e8227c ("sony-laptop: don't change keyboard
backlight settings"): avoid messing up the state on resume. Leave it to
what was before suspending as it's anyway likely that we still don't
know what value we should write to the EC registers. This fix is also
required in 3.12
Cc: stable@vger.kernel.org
Tested-by: Karol Babioch <karol@babioch.de>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This reverts commit c284ee2cf12b55fa8496b2d098bf0938688f1c1c. Turns out
the locking was incorrect.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Chao Bi <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity into for-linus
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git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
The imx fixes for 3.13, part 2:
- Disable S/PDIF "rxtx5" clock option to fix the clocksource breakage
introduced by S/PDIF driver
* tag 'imx-fixes-3.13-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
ARM: dts: imx6qdl: disable spdif "rxtx5" clock option
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Header file <acpi/acpi.h> contains environemnt settings and architecture
specific implementation that should be included before any other ACPICA
headers in order to keep a consistent build environment for ACPICA users.
The following internal ACPICA header files should be included from
<acpi/acpi.h> and should not be included by other kernel files:
<acpi/acpiosxf.h>
<acpi/acpixf.h>
Clean up incorrect inclusions of these files from non-ACPICA source
files.
[rjw: Subject and changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Without the interrupt you'll get problems if you enable
CONFIG_RTC_DRV_MAX77686. Setup the interrupt properly in the device
tree.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org
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Looks like we need to configure the regulators and use the pdata
quirk to make eMMC work with device tree.
It seems that mostly vaux3 is used, and only some earlier revisions
used vmmc2. This has been tested to work on devices where the
system_rev passed by the bootloader has versions 0x0010, 0x2101
and 0x2204.
Cc: devicetree@vger.kernel.org
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@debian.org>
[tony@atomide.com: updated with pinctrl changes and comments from Sebastian]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We do not have REGULATOR_FIXED selected if no boards are selected
and we boot with device tree. This can cause various devices to
fail.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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After dropping the duplicate data in hwmod that now should come from
the .dts files, I noticed few more entries missing. Let's add these
as otherwise devices relying on these won't work.
Looks like the side tone entries are bundled into the mcbsp1 to 3,
so that may needs some special handling in the hwmod code as it's
currently trying to look up mcbsp2_sidetone and mcbsp3_sidetone
entries.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This patch implements the power_down_finish() method for TC2, to
enable the kernel to confirm when CPUs are safely powered down.
The information required for determining when a CPU is parked
cannot be obtained from any single place, so a few sources of
information must be combined:
* mcpm_cpu_power_down() must be pending for the CPU, so that we
don't get confused by false STANDBYWFI positives arising from
CPUidle. This is detected by waiting for the tc2_pm use count
for the target CPU to reach 0.
* Either the SPC must report that the CPU has asserted
STANDBYWFI, or the TC2 tile's reset control logic must be
holding the CPU in reset.
Just checking for STANDBYWFI is not sufficient, because this
signal is not latched when the the cluster is clamped off and
powered down: the relevant status bits just drop to zero. This
means that STANDBYWFI status cannot be used for reliable
detection of the last CPU in a cluster reaching WFI.
This patch is required in order for kexec to work with MCPM on TC2.
MCPM code was changed in commit 0de0d6467525 ('ARM: 7848/1: mcpm:
Implement cpu_kill() to synchronise on powerdown'), and since then it
will hit a WARN_ON_ONCE() due to power_down_finish not being implemented
on the TC2 platform.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
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idlestates in sysfs are counted from 0.
This fixes a wrong error message.
Current behavior on a machine with 4 sleep states is:
cpupower idle-set -e 4
Idlestate 4 enabled on CPU 0
-----Wrong---------------------
cpupower idle-set -e 5
Idlestate enabling not supported by kernel
-----Must and now will be -----
cpupower idle-set -e 5
Idlestate 6 not available on CPU 0
-------------------------------
cpupower idle-set -e 6
Idlestate 6 not available on CPU 0
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The cpupower idle-set subcommand was introduce recently.
This patch provides the missing manpage.
If cpupower is properly installed it will show up automatically
(similar to git), when invoking:
cpupower help idle-set
or
cpupower idle-set --help
Some parts have been taken over and adjusted from
git commit 62d6ae880e3e76098
documentation submitted by Carsten Emde.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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In order to support increased build test coverage for drivers, implement
dummies for the powergate implementation. This will allow the drivers to
be built without requiring support for Tegra to be selected.
This patch solves the following build errors, which can be triggered in
v3.13-rc1 by selecting DRM_TEGRA without ARCH_TEGRA:
drivers/built-in.o: In function `gr3d_remove':
drivers/gpu/drm/tegra/gr3d.c:321: undefined reference to `tegra_powergate_power_off'
drivers/gpu/drm/tegra/gr3d.c:325: undefined reference to `tegra_powergate_power_off'
drivers/built-in.o: In function `gr3d_probe':
drivers/gpu/drm/tegra/gr3d.c:266: undefined reference to `tegra_powergate_sequence_power_up'
drivers/gpu/drm/tegra/gr3d.c:273: undefined reference to `tegra_powergate_sequence_power_up'
Signed-off-by: Thierry Reding <treding@nvidia.com>
[swarren, updated commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Few more fixes for issues found booting older omaps using device tree.
Also few randconfig build fixes and removal of some dead code for omap4
as it no longer has legacy platform data based booting support.
* tag 'omap-for-v3.13/more-fixes-for-merge-window-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init
ARM: OMAP2+: Remove legacy mux code for display.c
ARM: OMAP2+: Fix undefined reference to set_cntfreq
gpio: twl4030: Fix passing of pdata in the device tree case
gpio: twl4030: Fix regression for twl gpio output
ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain
ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and smc91x
i2c: omap: Fix missing device tree flags for omap2
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Some omap3 code is throwing a warning:
arch/arm/mach-omap2/pm34xx.c: In function 'omap3_save_secure_ram_context':
arch/arm/mach-omap2/pm34xx.c:123:32: warning: cast to pointer from
integer of different size [-Wint-to-pointer-cast]
In reality this code will never actually execute with LPAE=y, since
Cortex-A8 doesn't support it. So downcasting the __pa() is safe in
this case.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
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* acpi-hotplug:
ACPI / hotplug: Fix conflicted PCI bridge notify handlers
* acpi-sysfs:
ACPI / sysfs: Fix incorrect ACPI tables walk in acpi_tables_sysfs_init()
ACPI / sysfs: Set file size for each exposed ACPI table
* acpi-sleep:
ACPI / sleep: clean up compiler warning about uninitialized field
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When the system enters suspend, it disables all interrupts in
suspend_device_irqs(), including the interrupts marked EARLY_RESUME.
On the resume side things are different. The EARLY_RESUME interrupts
are reenabled in sys_core_ops->resume and the non EARLY_RESUME
interrupts are reenabled in the normal system resume path.
When suspend_noirq() failed or suspend is aborted for any other
reason, we might omit the resume side call to sys_core_ops->resume()
and therefor the interrupts marked EARLY_RESUME are not reenabled and
stay disabled forever.
To solve this, enable all irqs unconditionally in irq_resume()
regardless whether interrupts marked EARLY_RESUMEhave been already
enabled or not.
This might try to reenable already enabled interrupts in the non
failure case, but the only affected platform is XEN and it has been
confirmed that it does not cause any side effects.
[ tglx: Massaged changelog. ]
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by-and-tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Cc: <ian.campbell@citrix.com>
Cc: <rjw@rjwysocki.net>
Cc: <len.brown@intel.com>
Cc: <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1385388587-16442-1-git-send-email-ldewangan@nvidia.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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zsmalloc encodes a handle using the pfn and an object
index. On hardware platforms with physical memory starting
at 0x0 the pfn can be 0. This causes the encoded handle to be
0 and is incorrectly interpreted as an allocation failure.
This issue affects all current and future SoCs with physical
memory starting at 0x0. All MSM8974 SoCs which includes
Google Nexus 5 devices are affected.
To prevent this false error we ensure that the encoded handle
will not be 0 when allocation succeeds.
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It was introduced due to a patch hunk when porting
commit 20802057 (staging/lustre/ptlrpc: race in pinger).
Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Two code lines were accidentally deleted. Restore them.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First round of fixes for IIO in the 3.13 cycle.
The usual mixed bag of fixes.
* 3 cases where kconfig dependencies were missing. We need to keep a closer
eye on this in new drivers.
* hid_sensors was abusing the iio_dev->trigger pointer. We had a round
of clearing this out some time ago but this driver clearly slipped through.
* A misuse of the IIO_ST macro, in mcp3422, which we should really make a
concertive effort to finish removing.
* Avoid a double free introduced by recent buffer reference counting in the
one driver that (quite reasonably!) does things differently (am335x)
* A missing mutex_unlock in kxsd9 that means that driver has been non
functional for some time and no one noticed (including me who for once
actually has one of the supported devices).
* An incorrect assumption about the parameters of sign_extend32 in mcp3422.
So nothing controversial. The only substantial patch is the hid_sensors
one and that is actually just adding a new pointer to the devices private
state then moving the code over to it.
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