drivers/regulator/tps65910-regulator.c: In function ‘tps65910_parse_dt_reg_data’:
drivers/regulator/tps65910-regulator.c:1018: error: implicit declaration of function ‘of_get_child_by_name’
drivers/regulator/tps65910-regulator.c:1018: warning: assignment makes pointer from integer without a cast
drivers/regulator/tps65910-regulator.c:1034: error: implicit declaration of function ‘of_node_put’
drivers/regulator/tps65910-regulator.c:1056: error: implicit declaration of function ‘of_property_read_u32’
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Below comments got from Page4724 of Reference Manual of i.mx6q:
http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf
--"Static context mode should be used for the first channel called
after reset to ensure that the all context RAM for that channel is
initialized during the context SAVE phase when the channel is
done or yields. Subsequent calls to the same channel or
different channels may use any of the dynamic context modes.
This will ensure that all context locations for the bootload
channel are initialized, and prevent undefined values in context
RAM from being loaded during the context restore if the
channel is re-started later"
Unfortunately, the rule was broken by commit(5b28aa319bba96987316425a1131813d87cbab35)
.This patch just take them back.
Signed-off-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
plane->state->fb and plane->fb should always reference the same FB so
that atomic and legacy codepaths have the same view of display state.
However, there are some places in kernel code that directly set
plane->fb and neglect to update plane->state->fb. If we never do a
successful update through the atomic pipeline, the RmFB cleanup code
will look at the plane->state->fb pointer, which has never actually
been set to a legitimate value, and try to clean it up, leading to
BUG's.
Add a quick helper function to synchronize plane->state->fb with
plane->fb and call it everywhere the driver tries to manually set
plane->fb outside of the atomic pipeline. In this function, use
drm_atomic_set_fb_for_plane instead of writing plane->state->fb
directly to keep the reference count right.
This is modified from Matt Roper's patch to drm-intel-nightly with
commit id
commit afd65eb4cc
Author: Matt Roper <matthew.d.roper@intel.com>
Date: Tue Feb 3 13:10:04 2015 -0800
drm/i915: Ensure plane->state->fb stays in sync with plane->fb
However this bug exists in mainline kernel too, so I created this to fix
it in mainline kernel.
A minor change is to use drm_atomic_set_fb_for_plane instead of update
reference count manually.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88909
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=93711
Signed-off-by: Xi Ruoyao <xry111@outlook.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
[Jani: included the patch notes in the commit message]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
If you pass an invalid string here then you probably deserve the memory
corruption, but it annoys static analysis tools so lets fix it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull drm fix from Dave Airlie:
"An oops snuck in in an -rc3 patch, this fixes it"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
[PATCH] drm/mm: Fix support 4 GiB and larger ranges
driver fixes for new regressions since v3.19. Second are fixes to the
common clock divider type caused by recent changes to how we round clock
rates. This affects many clock drivers that use this common code.
Finally there are fixes for drivers that improperly compared struct clk
pointers (drivers must not deref these pointers). While some of these
drivers have done this for a long time, this did not cause a problem
until we started generating unique struct clk pointers for every
consumer. A new function, clk_is_match was introduced to get these
drivers working again and they are fixed up to no longer deref the
pointers themselves.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clock framework fixes from Michael Turquette:
"The clk fixes for 4.0-rc4 comprise three themes.
First are the usual driver fixes for new regressions since v3.19.
Second are fixes to the common clock divider type caused by recent
changes to how we round clock rates. This affects many clock drivers
that use this common code.
Finally there are fixes for drivers that improperly compared struct
clk pointers (drivers must not deref these pointers). While some of
these drivers have done this for a long time, this did not cause a
problem until we started generating unique struct clk pointers for
every consumer. A new function, clk_is_match was introduced to get
these drivers working again and they are fixed up to no longer deref
the pointers themselves"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
ASoC: kirkwood: fix struct clk pointer comparing
ASoC: fsl_spdif: fix struct clk pointer comparing
ARM: imx: fix struct clk pointer comparing
clk: introduce clk_is_match
clk: don't export static symbol
clk: divider: fix calculation of initial best divider when rounding to closest
clk: divider: fix selection of divider when rounding to closest
clk: divider: fix calculation of maximal parent rate for a given divider
clk: divider: return real rate instead of divider value
clk: qcom: fix platform_no_drv_owner.cocci warnings
clk: qcom: fix platform_no_drv_owner.cocci warnings
clk: qcom: Add PLL4 vote clock
clk: qcom: lcc-msm8960: Fix PLL rate detection
clk: qcom: Fix slimbus n and m val offsets
clk: ti: Fix FAPLL parent enable bit handling
bad argument if(tmp)... in check_free_hole
fix oops: kernel BUG at drivers/gpu/drm/drm_mm.c:305!
[airlied: excellent, this was my task for today].
Signed-off-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Reviewed-by: Chris wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
- armada-370-xp
- Chained per-cpu interrupts
- gic{,-v3,v3-its}
- Various fixes for safer operation
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Merge tag 'irqchip-fixes-4.0' of git://git.infradead.org/users/jcooper/linux
Pull irqchip fixes from Jason Cooper:
"armada-370-xp:
- Chained per-cpu interrupts
gic{,-v3,v3-its}"
- Various fixes for safer operation"
* tag 'irqchip-fixes-4.0' of git://git.infradead.org/users/jcooper/linux:
irqchip: gicv3-its: Support safe initialization
irqchip: gicv3-its: Define macros for GITS_CTLR fields
irqchip: gicv3-its: Add limitation to page order
irqchip: gicv3-its: Use 64KB page as default granule
irqchip: gicv3-its: Zero itt before handling to hardware
irqchip: gic-v3: Fix out of bounds access to cpu_logical_map
irqchip: gic: Fix unsafe locking reported by lockdep
irqchip: gicv3-its: Fix unsafe locking reported by lockdep
irqchip: gicv3-its: Iterate over PCI aliases to generate ITS configuration
irqchip: gicv3-its: Allocate enough memory for the full range of DeviceID
irqchip: gicv3-its: Fix ITS CPU init
irqchip: armada-370-xp: Fix chained per-cpu interrupts
The linux kernel has supported the TiVo Slide remote control for some time, but
does not recognize the USB ID of the newer Slide Pro. This patch adds the
missing data structures so the newer remote will be recognized by the driver,
thereby allowing the TiVo, LiveTV, and Thumbs Up/Down buttons to be
mapped with a hwdb file.
Signed-off-by: Forest Wilkinson <web11.forest@tibit.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch adds response to a_alt_hnp_support set feature request from legacy
A device, that is, B-device can provide a message to the user indicating that
the user needs to connect the B-device to an alternate port on the A-device.
A device sets this feature indicates to the B-device that it is connected
to an A-device port that is not capable of HNP, but that the A-device does have
an alternate port that is capable of HNP.
[Peter]
Without this patch, the OTG B device can't be enumerated on
non-HNP port at A device, see below log:
[ 2.287464] usb 1-1: Dual-Role OTG device on non-HNP port
[ 2.293105] usb 1-1: can't set HNP mode: -32
[ 2.417422] usb 1-1: new high-speed USB device number 4 using ci_hdrc
[ 2.460635] usb 1-1: Dual-Role OTG device on non-HNP port
[ 2.466424] usb 1-1: can't set HNP mode: -32
[ 2.587464] usb 1-1: new high-speed USB device number 5 using ci_hdrc
[ 2.630649] usb 1-1: Dual-Role OTG device on non-HNP port
[ 2.636436] usb 1-1: can't set HNP mode: -32
[ 2.641003] usb usb1-port1: unable to enumerate USB device
Cc: stable <stable@vger.kernel.org>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
*) Using phy_get_drvdata instead of dev_get_drvdata in armada375-usb2.c
*) Fixes w.r.t checking return values in regmap APIs, protecting regmap ops
with spin lock and directly using regmap_update_bits instead of having a
separate function to do the same in the various PHYs used in exynos.
*) check return value in platform_get_resource of hix5hd2-sata PHY
*) Removed NULL terminating entry from phys array and fix off-by-one
valid value checking for args->args[0] in of_xlate of exynos USB PHY.
*) Fixup rockchip_usb_phy_power_on failure path
*) Fix devm_phy_match to find the correct match in phy core and also fix to
return the correct value from PHY APIs if PM runtime is not enabled.
*) Removed redundant code in twl4030 and xgene
*) Fixed sizeof during memory allocation in miphy PHYs
*) simplify ti_pipe3_dpll_wait_lock implementation, fix missing clk_prepare
when using old dt name and nit pick in MOUDLE_ALIAS in TI PHYs.
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Merge tag 'for-4.0-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus
Kishon writes:
contains fixes all over drivers/phy and includes the following
*) Using phy_get_drvdata instead of dev_get_drvdata in armada375-usb2.c
*) Fixes w.r.t checking return values in regmap APIs, protecting regmap ops
with spin lock and directly using regmap_update_bits instead of having a
separate function to do the same in the various PHYs used in exynos.
*) check return value in platform_get_resource of hix5hd2-sata PHY
*) Removed NULL terminating entry from phys array and fix off-by-one
valid value checking for args->args[0] in of_xlate of exynos USB PHY.
*) Fixup rockchip_usb_phy_power_on failure path
*) Fix devm_phy_match to find the correct match in phy core and also fix to
return the correct value from PHY APIs if PM runtime is not enabled.
*) Removed redundant code in twl4030 and xgene
*) Fixed sizeof during memory allocation in miphy PHYs
*) simplify ti_pipe3_dpll_wait_lock implementation, fix missing clk_prepare
when using old dt name and nit pick in MOUDLE_ALIAS in TI PHYs.
Pull drm fixes from Dave Airlie:
"Misc i915, vmwgfx and radeon fixes along with a fix for one of those
recursive sleep mutex debug cases in the mst code"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/vmwgfx: Fix an issue with the device losing its irq line on module unload
drm/vmwgfx: Correctly NULLify dma buffer pointer on failure
drm/vmwgfx: Reorder device takedown somewhat
drm/vmwgfx: Fix a couple of lock dependency violations
drm/radeon: drop setting UPLL to sleep mode
drm/radeon: fix wait to actually occur after the signaling callback
drm/i915: Prevent TLB error on first execution on SNB
drm/i915: Do both mt and gen6 style forcewake reset on ivb probe
drm/i915: Make WAIT_IOCTL negative timeouts be indefinite again
drm/i915: use in_interrupt() not in_irq() to check context
drm/mst: fix recursive sleep warning on qlock
drm: Don't assign fbs for universal cursor support to files
This is a simple fix for a domain revalidation crash which has recently turned
up in the libsas code (applies to mvsas, isc and aic94xx).
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"This is a simple fix for a domain revalidation crash which has
recently turned up in the libsas code (applies to mvsas, isc and
aic94xx)"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
libsas: Fix Kernel Crash in smp_execute_task
Revert interrupt endpoint support from g_zero as it regresses
musb.
A possible deadlock in isp1760 udc irq has been fixed.
A fix to dwc2 for disconnect IRQ handling.
We also have a new device ID for isp1760.
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'fixes-for-v4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.0-rc3
Revert interrupt endpoint support from g_zero as it regresses
musb.
A possible deadlock in isp1760 udc irq has been fixed.
A fix to dwc2 for disconnect IRQ handling.
We also have a new device ID for isp1760.
Signed-off-by: Felipe Balbi <balbi@ti.com>
A number of tx queue wake-up events went missing due to the
outlined scenario below. Start state is a pool of 16 tx URBs,
active tx_urbs count = 15, with the netdev tx queue open.
CPU #1 [softirq] CPU #2 [softirq]
start_xmit() tx_acknowledge()
................ ................
atomic_inc(&tx_urbs);
if (atomic_read(&tx_urbs) >= 16) {
-->
atomic_dec(&tx_urbs);
netif_wake_queue();
return;
<--
netif_stop_queue();
}
At the end, the correct state expected is a 15 tx_urbs count
value with the tx queue state _open_. Due to the race, we get
the same tx_urbs value but with the tx queue state _stopped_.
The wake-up event is completely lost.
Thus avoid hand-rolled concurrency mechanisms and use a proper
lock for contexts and tx queue protection.
Signed-off-by: Ahmed S. Darwish <ahmed.darwish@valeo.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Enable the xilinx driver for ARM64.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The current driver assumes all RAPL domains within a CPU package
have the same energy unit. This is no longer true for HSW server
CPUs since DRAM domain has is own fixed energy unit which can be
different than the package energy unit enumerated by package
power MSR. In fact, the default HSW EP package power unit is 61uJ
whereas DRAM domain unit is 15.3uJ. The result is that DRAM power
consumption is counted 4x more than real power reported by energy
counters, similarly for max_energy_range_uj of DRAM domain.
This patch adds domain specific energy unit per cpu type, it allows
domain energy unit to override package energy unit if non zero.
Please see this document for details.
"Intel Xeon Processor E5-1600 and E5-2600 v3 Product Families, Volume 2 of 2.
Datasheet, September 2014, Reference Number: 330784-001 "
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Fix an ACPI LPSS (Low-Power Subsystem) driver issue causing the
8250_dw driver to confuse an LPSS clock with another one it is
supposed to handle due to the lack of identification allowing it
to tell those clocks apart (Heikki Krogerus).
- Revert a recent commit that was supposed to improve the usability
of the cpupower tool, but clearly did the opposite (Josh Boyer).
/
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Merge tag 'pm+acpi-4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"Just two fixes, one for an ACPI LPSS driver issue introduced during
the 3.17 cycle and one revert of a recent commit that sort of broke
the cpupower tool.
Specifics:
- Fix an ACPI LPSS (Low-Power Subsystem) driver issue causing the
8250_dw driver to confuse an LPSS clock with another one it is
supposed to handle due to the lack of identification allowing it to
tell those clocks apart (Heikki Krogerus).
- Revert a recent commit that was supposed to improve the usability
of the cpupower tool, but clearly did the opposite (Josh Boyer)"
* tag 'pm+acpi-4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "cpupower Makefile change to help run the tool without 'make install'"
ACPI / LPSS: provide con_id for the clkdev
Pull ARM cpuidle fixes for v4.0 from Daniel Lezcano.
* 'cpuidle/4.0-fixes' of http://git.linaro.org/people/daniel.lezcano/linux:
cpuidle: mvebu: Update cpuidle thresholds for Armada XP SOCs
cpuidle: mvebu: Fix the CPU PM notifier usage
- Fix a PV regression in 3.19.
- Fix a dom0 crash on hosts with large numbers of PIRQs.
- Prevent pcifront from disabling memory or I/O port access, which may
trigger host crashes.
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Merge tag 'stable/for-linus-4.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- fix a PV regression in 3.19.
- fix a dom0 crash on hosts with large numbers of PIRQs.
- prevent pcifront from disabling memory or I/O port access, which may
trigger host crashes.
* tag 'stable/for-linus-4.0-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen-pciback: limit guest control of command register
xen/events: avoid NULL pointer dereference in dom0 on large machines
xen: Remove trailing semicolon from xenbus_register_frontend() definition
x86/xen: correct bug in p2m list initialization
- Fix for stdout-path option parsing with added unittest
- Fix for stdout-path interaction with earlycon
- Several DT unittest fixes
- Fix Sparc allmodconfig build error on
of_platform_register_reconfig_notifier
- Several DT overlay kconfig and build warning fixes
- Several DT binding documentation updates
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Merge tag 'devicetree-fixes-for-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- fix for stdout-path option parsing with added unittest
- fix for stdout-path interaction with earlycon
- several DT unittest fixes
- fix Sparc allmodconfig build error on of_platform_register_reconfig_notifier
- several DT overlay kconfig and build warning fixes
- several DT binding documentation updates
* tag 'devicetree-fixes-for-4.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of/platform: Fix sparc:allmodconfig build
of: unittest: Add options string testcase variants
of: fix handling of '/' in options for of_find_node_by_path()
of/unittest: Fix the wrong expected value in of_selftest_property_string
of/unittest: remove the duplicate of_changeset_init
dt: submitting-patches: clarify that DT maintainers are to be cced on bindings
of: unittest: fix I2C dependency
of/overlay: Remove unused variable
Documentation: DT: Renamed of-serial.txt to 8250.txt
of: Fix premature bootconsole disable with 'stdout-path'
serial: add device tree binding documentation for ETRAX FS UART
of/overlay: Directly include idr.h
of: Drop superfluous dependance for OF_OVERLAY
of: Add vendor prefix for Arasan
of: Add prompt for OF_OVERLAY config
Pull gadgetfs fixes from Al Viro:
"Assorted fixes around AIO on gadgetfs: leaks, use-after-free, troubles
caused by ->f_op flipping"
* 'gadget' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
gadgetfs: really get rid of switching ->f_op
gadgetfs: get rid of flipping ->f_op in ep_config()
gadget: switch ep_io_operations to ->read_iter/->write_iter
gadgetfs: use-after-free in ->aio_read()
gadget/function/f_fs.c: switch to ->{read,write}_iter()
gadget/function/f_fs.c: use put iov_iter into io_data
gadget/function/f_fs.c: close leaks
move iov_iter.c from mm/ to lib/
new helper: dup_iter()
Originally, the thresholds used in the cpuidle driver for Armada SOCs
were temporarily chosen, leaving room for improvements.
This commit updates the thresholds for the Armada XP SOCs with values
that positively impact performances:
without patch with patch vendor kernel
- iperf localhost (gbit/sec) ~3.7 ~6.4 ~5.4
- ioping tmpfs (iops) ~163k ~206k ~179k
- ioping tmpfs (mib/s) ~636 ~805 ~699
The idle power consumption is negatively impacted (proportionally less
than the performance gain), and we are still performing better than
the vendor kernel here:
without patch with patch vendor kernel
- power consumption idle (W) ~2.4 ~3.2 ~4.4
- power consumption busy (W) ~8.6 ~8.3 ~8.6
There is still room for improvement regarding the value of these
thresholds, they were chosen to mimic the vendor kernel.
This patch only impacts Armada XP SOCs and was tested on Online Labs
C1 boards. A similar approach can be taken to improve the performances
of the Armada 370 and Armada 38x SOCs.
Thanks a lot to Thomas Petazzoni, Gregory Clement and Willy Tarreau
for the discussions and tips around this topic.
Signed-off-by: Sebastien Rannou <mxs@sbrk.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
As stated in kernel/cpu_pm.c, "Platform is responsible for ensuring
that cpu_pm_enter is not called twice on the same CPU before
cpu_pm_exit is called.". In the current code in case of failure when
calling mvebu_v7_cpu_suspend, the function cpu_pm_exit() is never
called whereas cpu_pm_enter() was called just before.
This patch moves the cpu_pm_exit() in order to balance the
cpu_pm_enter() calls.
Cc: stable@vger.kernel.org
Reported-by: Fulvio Benini <fbf@libero.it>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This reverts commit 2b995f6398.
Панов Андрей reported the following regression:
"Commit 2b995f6398 in 4.0.0-rc3 introduces a
nasty bug in transmit, corrupting packets.
To reproduce:
$ dd if=/dev/zero of=zeros bs=1M count=20
$ md5sum -b zeros
8f4e33f3dc3e414ff94e5fb6905cba8c *zeros
This checksum is correct.
Copy file "zeros" to another host with NFS, and it gets corrupted, checksum is
changed.
File should be big, small amounts of transmit isn't affected.
I use an i.MX6 Quad board.
If this commit is reverted, all works fine."
Reported-by: Панов Андрей <rockford@yandex.ru>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit dfd8645ea1 wrongly assumes that VXLAN_VDI_MASK includes
eight lower order reserved bits of VNI field that are using for remote
checksum offload.
Right now, when VNI number greater then 0xffff, vxlan_udp_encap_recv()
will always return with 'bad_flag' error, reducing the usable vni range
from 0..16777215 to 0..65535. Also, it doesn't really check whether RCO
bits processed or not.
Fix it by adding new VNI mask which has all 32 bits of VNI field:
24 bits for id and 8 bits for other usage.
Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Array index 'j' is used before limits check.
Suggest put limit check before index use.
Signed-off-by : <Ameenali023@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current code does not call clk_prepare(phy->optclk) when using the old
usb_otg_ss_refclk960m name. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Remove extra space in MODULE_ALIAS.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
When phy_pm_runtime_get_sync() returns -ENOTSUPP, phy_exit() also returns
-ENOTSUPP if !phy->ops->exit. Fix it.
Also move the code to override ret close to the code we got ret.
I think it is less error prone this way.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Prefer devm_kcalloc over devm_kzalloc with multiply.
In additional, use sizeof(phy) is incorrect, fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Gabriel Fernandez<gabriel.fernandez@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Prefer devm_kcalloc over devm_kzalloc with multiply.
In additional, use sizeof(phy) is incorrect, fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Current code uses args->args[0] as array subscript of phy_drd->phys[].
So the valid value range for args->args[0] is 0 ... EXYNOS5_DRDPHYS_NUM - 1.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
devm_phy_create() stores the pointer to the new PHY at the address
returned by devres_alloc(). The res parameter passed to devm_phy_match()
is therefore the location where the pointer to the PHY is stored, hence
it needs to be dereferenced before comparing to the match data in order
to find the correct match.
Cc: <stable@vger.kernel.org> # v3.13+
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This patch fixes the following issues regarding to the calculation of the
residue:
1. The residue is always calculated for the current transfer even if the
cookie is associated to a pending transfer.
2. For scatter/gather DMA the calculation of the residue for the current
transfer doesn't include the bytes of the child descriptors that are already
transferred.
It only calculates the difference between the transfer's total length minus
the number of bytes that are already transferred for the current child
descriptor.
For example: There is a scatter/gather DMA transfer with a total length of
1 MByte. Getting the residue several times while the transfer is running shows
something like that:
1: residue = 975584
2: residue = 1002766
3: residue = 992627
4: residue = 983767
5: residue = 985694
6: residue = 1008094
7: residue = 1009741
8: residue = 1011195
3. The driver stores the residue but never resets it when starting a new
transfer.
For example: If there are two subsequent DMA transfers. The first one with
a total length of 1 MByte and the second one with a total length of 1 kByte.
Getting the residue for both transfers shows something like that:
transfer 1: residue = 975584
transfer 2: residue = 1048380
Changes from V1:
* Fixed coding style of the multi-line comments.
* Improved accuracy of the residue calculation when the transfer for the
first descriptor is active.
Changes from V2:
* Member 'tx_width' of 'struct at_desc' restored, because the transfer width
can't be derived from the source width when using "slave_sg".
The transfer width is needed for the calculation of the residue if either
the transfer of the first or the last descriptor is in progress.
In the case of a "memory_to_memory_sg" transfer (part of this patch
series) the transfer width of both descriptors may differ. Thus it is
required to additionally set 'tx_width' of the last descriptor.
* Added functions for multiply used calculations.
Signed-off-by: Torsten Fleischer <torfl6749@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
virtio_mmio currently lacks generation support which
makes multi-byte field access racy.
Fix by getting the value at offset 0xfc for version 2
devices. Nothing we can do for version 1, so return
generation id 0.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
virtio spec requires that all drivers set DRIVER_OK
before using devices. While rpmsg isn't yet
included in the virtio 1 spec, previous spec versions
also required this.
virtio rpmsg violates this rule: is calls kick
before setting DRIVER_OK.
The fix isn't trivial since simply calling virtio_device_ready earlier
would mean we might get an interrupt in parallel with adding buffers.
Instead, split kick out to prepare+notify calls. prepare before
virtio_device_ready - when we know we won't get interrupts. notify right
afterwards.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Commit df9e26d093 ("rtc: s3c: add support for RTC of Exynos3250 SoC")
added an "rtc_src" DT property to specify the clock used as a source to
the S3C real-time clock.
Not all SoCs needs this so commit eaf3a65908 ("drivers/rtc/rtc-s3c.c:
fix initialization failure without rtc source clock") changed to check
the struct s3c_rtc_data .needs_src_clk to conditionally grab the clock.
But that commit didn't update the data for each IP version so the RTC
broke on the boards that needs a source clock. This is the case of at
least Exynos5250 and Exynos5440 which uses the s3c6410 RTC IP block.
This commit fixes the S3C rtc on the Exynos5250 Snow and Exynos5420
Peach Pit and Pi Chromebooks.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Tyler Baker <tyler.baker@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some additional radeon fixes for 4.0
* 'drm-fixes-4.0' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: drop setting UPLL to sleep mode
drm/radeon: fix wait to actually occur after the signaling callback
A couple of fixes for vmwgfx.
* 'vmwgfx-fixes-4.0' of git://people.freedesktop.org/~thomash/linux:
drm/vmwgfx: Fix an issue with the device losing its irq line on module unload
drm/vmwgfx: Correctly NULLify dma buffer pointer on failure
drm/vmwgfx: Reorder device takedown somewhat
drm/vmwgfx: Fix a couple of lock dependency violations
More i915 fixes, three out of four are fixes to old bugs, cc: stable.
* tag 'drm-intel-fixes-2015-03-12' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Prevent TLB error on first execution on SNB
drm/i915: Do both mt and gen6 style forcewake reset on ivb probe
drm/i915: Make WAIT_IOCTL negative timeouts be indefinite again
drm/i915: use in_interrupt() not in_irq() to check context
We don't delete napi from hash list during module exit. This will
cause the following panic when doing module load and unload:
BUG: unable to handle kernel paging request at 0000004e00000075
IP: [<ffffffff816bd01b>] napi_hash_add+0x6b/0xf0
PGD 3c5d5067 PUD 0
Oops: 0000 [#1] SMP
...
Call Trace:
[<ffffffffa0a5bfb7>] init_vqs+0x107/0x490 [virtio_net]
[<ffffffffa0a5c9f2>] virtnet_probe+0x562/0x791815639d880be [virtio_net]
[<ffffffff8139e667>] virtio_dev_probe+0x137/0x200
[<ffffffff814c7f2a>] driver_probe_device+0x7a/0x250
[<ffffffff814c81d3>] __driver_attach+0x93/0xa0
[<ffffffff814c8140>] ? __device_attach+0x40/0x40
[<ffffffff814c6053>] bus_for_each_dev+0x63/0xa0
[<ffffffff814c7a79>] driver_attach+0x19/0x20
[<ffffffff814c76f0>] bus_add_driver+0x170/0x220
[<ffffffffa0a60000>] ? 0xffffffffa0a60000
[<ffffffff814c894f>] driver_register+0x5f/0xf0
[<ffffffff8139e41b>] register_virtio_driver+0x1b/0x30
[<ffffffffa0a60010>] virtio_net_driver_init+0x10/0x12 [virtio_net]
This patch fixes this by doing this in virtnet_free_queues(). And also
don't delete napi in virtnet_freeze() since it will call
virtnet_free_queues() which has already did this.
Fixes 91815639d8 ("virtio-net: rx busy polling support")
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull i2c fix from Wolfram Sang:
"An important bugfix for the I2C subsystem core"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: core: Dispose OF IRQ mapping at client removal time"
APM X-Gene host bridge driver
- Add register offset to config space base address (Feng Kan)
Miscellaneous
- Don't read past the end of sysfs "driver_override" buffer (Sasha Levin)
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Merge tag 'pci-v4.0-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"Here are a couple updates for v4.0.
One fixes a config accessor problem on APM X-Gene that we introduced
when switching to generic config accessors, and the other fixes an
older read-past-end-of-buffer problem in sysfs.
APM X-Gene host bridge driver
- Add register offset to config space base address (Feng Kan)
Miscellaneous
- Don't read past the end of sysfs "driver_override" buffer (Sasha Levin)"
* tag 'pci-v4.0-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: xgene: Add register offset to config space base address
PCI: Don't read past the end of sysfs "driver_override" buffer
This adds a missing break statement to VFIO_DEVICE_SET_IRQS handler
without which vfio_pci_set_err_trigger() would never be called.
While we are here, add another "break" to VFIO_PCI_REQ_IRQ_INDEX case
so if we add more indexes later, we won't miss it.
Fixes: 6140a8f562 ("vfio-pci: Add device request interface")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
