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git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu into for-3.17/core
Merge the percpu_ref changes from Tejun, he says they are stable now.
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Currently, a percpu_ref undoes percpu_ref_init() automatically by
freeing the allocated percpu area when the percpu_ref is killed.
While seemingly convenient, this has the following niggles.
* It's impossible to re-init a released reference counter without
going through re-allocation.
* In the similar vein, it's impossible to initialize a percpu_ref
count with static percpu variables.
* We need and have an explicit destructor anyway for failure paths -
percpu_ref_cancel_init().
This patch removes the automatic percpu counter freeing in
percpu_ref_kill_rcu() and repurposes percpu_ref_cancel_init() into a
generic destructor now named percpu_ref_exit(). percpu_ref_destroy()
is considered but it gets confusing with percpu_ref_kill() while
"exit" clearly indicates that it's the counterpart of
percpu_ref_init().
All percpu_ref_cancel_init() users are updated to invoke
percpu_ref_exit() instead and explicit percpu_ref_exit() calls are
added to the destruction path of all percpu_ref users.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Benjamin LaHaise <bcrl@kvack.org>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Nicholas A. Bellinger <nab@linux-iscsi.org>
Cc: Li Zefan <lizefan@huawei.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few driver specific fixes, the biggest one being a fix for the newly
added Qualcomm SPI controller driver to make it not use its internal
chip select due to hardware bugs, replacing it with GPIOs"
* tag 'spi-v3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: qup: Remove chip select function
spi: qup: Fix order of spi_register_master
spi: sh-sci: fix use-after-free in sh_sci_spi_remove()
spi/pxa2xx: fix incorrect SW mode chipselect setting for BayTrail LPSS SPI
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'spi/fix/sh-sci' into spi-linus
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setbits() uses sp->membase.
Signed-off-by: Jürg Billeter <j@bitron.ch>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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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: Andy Gross <agross@codeaurora.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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This patch moves the devm_spi_register_master below the initialization of the
runtime_pm. If done in the wrong order, the spi_register_master fails if any
probed slave devices issue SPI transactions.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Acked-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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It was observed that after module removal followed by insertion,
the SW mode chipselect is not properly set. Thus causing transfer
failure due to incorrect CS toggling.
Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Several driver specific fixes here, the palmas fixes being especially
important for a range of boards - the recent updates to support new
devices have introduced several regressions"
* tag 'regulator-v3.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: tps65218: Correct the the config register for LDO1
regulator: tps65218: Add the missing of_node assignment in probe
regulator: palmas: fix typo in enable_reg calculation
regulator: bcm590xx: fix vbus name
regulator: palmas: Fix SMPS enable/disable/is_enabled
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'regulator/fix/palmas' and 'regulator/fix/tps65218' into regulator-linus
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Correct the the config register for LDO1.
Fixes: 90e7d5262796 (regulator: tps65218: Add Regulator driver for
TPS65218 PMIC)
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: <stable@vger.kernel.org> # v3.15
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Add the missing of_node assignment in probe.
Fixes: 90e7d5262796 (regulator: tps65218: Add Regulator driver for TPS65218 PMIC)
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: <stable@vger.kernel.org> # v3.15
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When setting up .enable_reg for an SMPS regulator, presumably we should
call PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, ...) rather than using
LDO_BASE. This change makes the LCD panel and HDMI work again on the
NVIDIA Dalmore board anyway.
Fixes: 318dbb02b50c ("regulator: palmas: Fix SMPS enable/disable/is_enabled")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Nishanth Menon <nm@ti.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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We use regmap regulator ops to enable/disable and check if regulator
is enabled for various SMPS. However, these depend on valid
enable_reg, enable_mask and enable_value in regulator descriptor.
Currently we do not populate these for SMPS other than SMPS10, this
results in spurious results as regmap assumes that the values are
valid and ends up reading register 0x0 RTC:SECONDS_REG on Palmas
variants that do have RTC! To fix this, we update proper parameters
for the descriptor fields.
Further, we want to ensure the behavior consistent with logic
prior to commit dbabd624d4eec50b6, where, once you do a set_mode,
enable/disable ensure the logic remains consistent and configures
Palmas to the configuration that we set with set_mode (since the
configuration register is common). To do this, we can rely on the
regulator core's regulator_register behavior where the regulator
descriptor pointer provided by the regulator driver is stored. (no
reallocation and copy is done). This lets us update the enable_value
post registration, to remain consistent with the mode we configure as
part of set_mode.
Fixes: dbabd624d4eec50b6 ("regulator: palmas: Reemove open coded functions with helper functions")
Reported-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The vbus regulator was not getting its name set. This results
in the sysfs entry being empty. The lack of a bcm590xx_regs[]
table entry also upsets Coverity runs. Add the table entry
so the name gets set properly.
Signed-off-by: Graham Williams <graham.williams@linaro.org>
Acked-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Pull SCSI target fixes from Nicholas Bellinger:
"Mostly minor fixes this time around. The highlights include:
- iscsi-target CHAP authentication fixes to enforce explicit key
values (Tejas Vaykole + rahul.rane)
- fix a long-standing OOPs in target-core when a alua configfs
attribute is accessed after port symlink has been removed.
(Sebastian Herbszt)
- fix a v3.10.y iscsi-target regression causing the login reject
status class/detail to be ignored (Christoph Vu-Brugier)
- fix a v3.10.y iscsi-target regression to avoid rejecting an
existing ITT during Data-Out when data-direction is wrong (Santosh
Kulkarni + Arshad Hussain)
- fix a iscsi-target related shutdown deadlock on UP kernels (Mikulas
Patocka)
- fix a v3.16-rc1 build issue with vhost-scsi + !CONFIG_NET (MST)"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi-target: fix iscsit_del_np deadlock on unload
iovec: move memcpy_from/toiovecend to lib/iovec.c
iscsi-target: Avoid rejecting incorrect ITT for Data-Out
tcm_loop: Fix memory leak in tcm_loop_submission_work error path
iscsi-target: Explicily clear login response PDU in exception path
target: Fix left-over se_lun->lun_sep pointer OOPs
iscsi-target; Enforce 1024 byte maximum for CHAP_C key value
iscsi-target: Convert chap_server_compute_md5 to use kstrtoul
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On uniprocessor preemptible kernel, target core deadlocks on unload. The
following events happen:
* iscsit_del_np is called
* it calls send_sig(SIGINT, np->np_thread, 1);
* the scheduler switches to the np_thread
* the np_thread is woken up, it sees that kthread_should_stop() returns
false, so it doesn't terminate
* the np_thread clears signals with flush_signals(current); and goes back
to sleep in iscsit_accept_np
* the scheduler switches back to iscsit_del_np
* iscsit_del_np calls kthread_stop(np->np_thread);
* the np_thread is waiting in iscsit_accept_np and it doesn't respond to
kthread_stop
The deadlock could be resolved if the administrator sends SIGINT signal to
the np_thread with killall -INT iscsi_np
The reproducible deadlock was introduced in commit
db6077fd0b7dd41dc6ff18329cec979379071f87, but the thread-stopping code was
racy even before.
This patch fixes the problem. Using kthread_should_stop to stop the
np_thread is unreliable, so we test np_thread_state instead. If
np_thread_state equals ISCSI_NP_THREAD_SHUTDOWN, the thread exits.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch changes iscsit_check_dataout_hdr() to dump the incoming
Data-Out payload when the received ITT is not associated with a
WRITE, instead of calling iscsit_reject_cmd() for the non WRITE
ITT descriptor.
This addresses a bug where an initiator sending an Data-Out for
an ITT associated with a READ would end up generating a reject
for the READ, eventually resulting in list corruption.
Reported-by: Santosh Kulkarni <santosh.kulkarni@calsoftinc.com>
Reported-by: Arshad Hussain <arshad.hussain@calsoftinc.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes a tcm_loop_cmd descriptor memory leak in the
tcm_loop_submission_work() error path, and would result in
warnings about leaked tcm_loop_cmd_cache objects at module
unload time.
Go ahead and invoke kmem_cache_free() to release tl_cmd back to
tcm_loop_cmd_cache before calling sc->scsi_done().
Reported-by: Sebastian Herbszt <herbszt@gmx.de>
Tested-by: Sebastian Herbszt <herbszt@gmx.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch adds a explicit memset to the login response PDU
exception path in iscsit_tx_login_rsp().
This addresses a regression bug introduced in commit baa4d64b
where the initiator would end up not receiving the login
response and associated status class + detail, before closing
the login connection.
Reported-by: Christophe Vu-Brugier <cvubrugier@yahoo.fr>
Tested-by: Christophe Vu-Brugier <cvubrugier@yahoo.fr>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes a left-over se_lun->lun_sep pointer OOPs when one
of the /sys/kernel/config/target/$FABRIC/$WWPN/$TPGT/lun/$LUN/alua*
attributes is accessed after the $DEVICE symlink has been removed.
To address this bug, go ahead and clear se_lun->lun_sep memory in
core_dev_unexport(), so that the existing checks for show/store
ALUA attributes in target_core_fabric_configfs.c work as expected.
Reported-by: Sebastian Herbszt <herbszt@gmx.de>
Tested-by: Sebastian Herbszt <herbszt@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch adds a check in chap_server_compute_md5() to enforce a
1024 byte maximum for the CHAP_C key value following the requirement
in RFC-3720 Section 11.1.4:
"..., C and R are large-binary-values and their binary length (not
the length of the character string that represents them in encoded
form) MUST not exceed 1024 bytes."
Reported-by: rahul.rane <rahul.rane@calsoftinc.com>
Tested-by: rahul.rane <rahul.rane@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch converts chap_server_compute_md5() from simple_strtoul() to
kstrtoul usage().
This addresses the case where a empty 'CHAP_I=' key value received during
mutual authentication would be converted to a '0' by simple_strtoul(),
instead of failing the login attempt.
Reported-by: Tejas Vaykole <tejas.vaykole@calsoftinc.com>
Tested-by: Tejas Vaykole <tejas.vaykole@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- fix VT-d regression with handling multiple RMRR entries per device
- fix a small race that was left in the mmu_notifier handling in the
AMD IOMMUv2 driver
* tag 'iommu-fixes-v3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix small race between invalidate_range_end/start
iommu/vt-d: fix bug in handling multiple RMRRs for the same PCI device
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Commit e79df31 introduced mmu_notifer_count to protect
against parallel mmu_notifier_invalidate_range_start/end
calls. The patch left a small race condition when
invalidate_range_end() races with a new
invalidate_range_start() the empty page-table may be
reverted leading to stale TLB entries in the IOMMU and the
device. Use a spin_lock instead of just an atomic variable
to eliminate the race.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Function dmar_iommu_notify_scope_dev() makes a wrong assumption that
there's one RMRR for each PCI device at most, which causes DMA failure
on some HP platforms. So enhance dmar_iommu_notify_scope_dev() to
handle multiple RMRRs for the same PCI device.
Fixbug: https://bugzilla.novell.com/show_bug.cgi?id=879482
Cc: <stable@vger.kernel.org> # 3.15
Reported-by: Tom Mingarelli <thomas.mingarelli@hp.com>
Tested-by: Linda Knippers <linda.knippers@hp.com>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"A pile of fixes related to the VDSO, EFI and 32-bit badsys handling.
It turns out that removing the section headers from the VDSO breaks
gdb, so this puts back most of them. A very simple typo broke
rt_sigreturn on some versions of glibc, with obviously disastrous
results. The rest is pretty much fixes for the corresponding fallout.
The EFI fixes fixes an arithmetic overflow on 32-bit systems and
quiets some build warnings.
Finally, when invoking an invalid system call number on x86-32, we
bypass a bunch of handling, which can make the audit code oops"
* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi-pstore: Fix an overflow on 32-bit builds
x86/vdso: Error out in vdso2c if DT_RELA is present
x86/vdso: Move DISABLE_BRANCH_PROFILING into the vdso makefile
x86_32, signal: Fix vdso rt_sigreturn
x86_32, entry: Do syscall exit work on badsys (CVE-2014-4508)
x86/vdso: Create .build-id links for unstripped vdso files
x86/vdso: Remove some redundant in-memory section headers
x86/vdso: Improve the fake section headers
x86/vdso2c: Use better macros for ELF bitness
x86/vdso: Discard the __bug_table section
efi: Fix compiler warnings (unused, const, type)
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In generic_id the long int timestamp is multiplied by 100000 and needs
an explicit cast to u64.
Without that the id in the resulting pstore filename is wrong and
userspace may have problems parsing it, but more importantly files in
pstore can never be deleted and may fill the EFI flash (brick device?).
This happens because when generic pstore code wants to delete a file,
it passes the id to the EFI backend which reinterpretes it and a wrong
variable name is attempted to be deleted. There's no error message but
after remounting pstore, deleted files would reappear.
Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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This patch fixes a few compiler warning in the efi code for unused
variable, discarding const qualifier and wrong pointer type:
drivers/firmware/efi/fdt.c|66 col 22| warning: unused variable ‘name’ [-Wunused-variable]
drivers/firmware/efi/efi.c|368 col 3| warning: passing argument 3 of ‘of_get_flat_dt_prop’ from incompatible pointer type [enabled by default]
drivers/firmware/efi/efi.c|368 col 8| warning: assignment discards ‘const’ qualifier from pointer target type [enabled by default]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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Pull MIPS fixes from Ralf Baechle:
"This is dominated by a large number of changes necessary for the MIPS
BPF code. code. Aside of that there are
- a fix for the MSC system controller support code.
- a Turbochannel fix.
- a recordmcount fix that's MIPS-specific.
- barrier fixes to smp-cps / pm-cps after unrelated changes elsewhere
in the kernel.
- revert support for MSA registers in the signal frames. The
reverted patch did modify the signal stack frame which of course is
inacceptable.
- fix math-emu build breakage with older compilers.
- some related cleanup.
- fix Lasat build error if CONFIG_CRC32 isn't set to y by the user"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (27 commits)
MIPS: Lasat: Fix build error if CRC32 is not enabled.
TC: Handle device_register() errors.
MIPS: MSC: Prevent out-of-bounds writes to MIPS SC ioremap'd region
MIPS: bpf: Fix stack space allocation for BPF memwords on MIPS64
MIPS: BPF: Use 32 or 64-bit load instruction to load an address to register
MIPS: bpf: Fix PKT_TYPE case for big-endian cores
MIPS: BPF: Prevent kernel fall over for >=32bit shifts
MIPS: bpf: Drop update_on_xread and always initialize the X register
MIPS: bpf: Fix is_range() semantics
MIPS: bpf: Use pr_debug instead of pr_warn for unhandled opcodes
MIPS: bpf: Fix return values for VLAN_TAG_PRESENT case
MIPS: bpf: Use correct mask for VLAN_TAG case
MIPS: bpf: Fix branch conditional for BPF_J{GT/GE} cases
MIPS: bpf: Add SEEN_SKB to flags when looking for the PKT_TYPE
MIPS: bpf: Use 'andi' instead of 'and' for the VLAN cases
MIPS: bpf: Return error code if the offset is a negative number
MIPS: bpf: Use the LO register to get division's quotient
MIPS: mm: uasm: Fix lh micro-assembler instruction
MIPS: uasm: Add SLT uasm instruction
MIPS: uasm: Add s3s1s2 instruction builder
...
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Make the TURBOchannel driver bail out if the call to device_register()
failed.
Signed-off-by: Levente Kurusa <levex@linux.com>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6673/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD fixes from Lee Jones:
"Couple of simple fixes due for the v3.16 -rcs"
* tag 'mfd-fixes-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
mfd: ab8500: Fix dt irq mapping
mfd: davinci: Voicecodec needs regmap_mmio
mfd: STw481x: Allow modular build
mfd: UCB1x00: Enable modular build
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The AD8500 defines itself as interrupt-controller in DT,
but it doesn't assign DT node to IRQ domain when creates it.
As result, of_irq_xx() helpers don't work because they can't
find necessary IRQ domain.
Hence, fix it by assigning AD8500 core device DT node to IRQ
domain when it's created.
This patch fixes STE u8500 Snowball boot failure reported by Kevin Hilman
https://lkml.org/lkml/2014/5/27/624
Reported-and-tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Without REGMAP_MMIO, building that driver results in a link error:
drivers/built-in.o: In function `davinci_vc_probe':
:(.init.text+0x3c1c): undefined reference to `devm_regmap_init_mmio_clk'
This adds a Kconfig 'select' statement as the usual way to ensure
that REGMAP_MMIO is enabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This driver depends on I2C, which may be a loadable module.
While you'd probably want both to be built-in in practice,
allowing a modular build avoids possible randconfig link
errors.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The UCB1200 / UCB1300 driver uses the MCP_SA11X0 driver, which
can be a loadable module, but this results in a link error
when UCB1200 itself is built-in:
drivers/built-in.o: In function `ucb1x00_io_set_dir':
:(.text+0x4a364): undefined reference to `mcp_reg_write'
drivers/built-in.o: In function `ucb1x00_io_write':
:(.text+0x4a3dc): undefined reference to `mcp_reg_write'
drivers/built-in.o: In function `ucb1x00_io_read':
:(.text+0x4a400): undefined reference to `mcp_reg_read'
drivers/built-in.o: In function `ucb1x00_adc_enable':
:(.text+0x4a460): undefined reference to `mcp_enable'
...
This can easily be resolved by making CONFIG_MCP_UCB1200 itself
a tristate option, since that causes Kconfig to track the
dependency correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Pull drm fixes from Dave Airlie:
"Exynos, i915 and msm fixes and one core fix.
exynos:
hdmi power off and mixer issues
msm:
iommu, build fixes,
i915:
regression races and warning fixes"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (22 commits)
drm/i915: vlv_prepare_pll is only needed in case of non DSI interfaces
drm: fix NULL pointer access by wrong ioctl
drm/exynos: enable vsync interrupt while waiting for vblank
drm/exynos: soft reset mixer before reconfigure after power-on
drm/exynos: allow multiple layer updates per vsync for mixer
drm/i915: Hold the table lock whilst walking the file's idr and counting the objects in debugfs
drm/i915: BDW: Adding Reserved PCI IDs.
drm/i915: Only mark the ctx as initialised after a SET_CONTEXT operation
drm/exynos: stop mixer before gating clocks during poweroff
drm/exynos: set power state variable after enabling clocks and power
drm/exynos: disable unused windows on apply
drm/exynos: Fix de-registration ordering
drm/exynos: change zero to NULL for sparse
drm/exynos: dpi: Fix NULL pointer dereference with legacy bindings
drm/exynos: hdmi: fix power order issue
drm/i915: default to having backlight if VBT not available
drm/i915: cache hw power well enabled state
drm/msm: fix IOMMU cleanup for -EPROBE_DEFER
drm/msm: use PAGE_ALIGNED instead of IS_ALIGNED(PAGE_SIZE)
drm/msm/hdmi: set hdp clock rate before prepare_enable
...
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git://anongit.freedesktop.org/drm-intel into drm-fixes
Fixes for 3.16-rc2; regressions, races, and warns; Broadwell PCI IDs.
* tag 'drm-intel-fixes-2014-06-26' of git://anongit.freedesktop.org/drm-intel:
drm/i915: vlv_prepare_pll is only needed in case of non DSI interfaces
drm/i915: Hold the table lock whilst walking the file's idr and counting the objects in debugfs
drm/i915: BDW: Adding Reserved PCI IDs.
drm/i915: Only mark the ctx as initialised after a SET_CONTEXT operation
drm/i915: default to having backlight if VBT not available
drm/i915: cache hw power well enabled state
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For MIPI, DSI PLL is configured separately in vlv_configure_dsi_pll
during the DSI enable sequence
Causing WARN dump otherwise in dpio_reads
v2: Add IS_CHERRYVIEW check as suggested by Ville
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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objects in debugfs
Fixes an issue whereby we may race with the table updates (before the
core takes the struct_mutex) and so risk dereferencing a stale pointer in
the iterator for /debugfs/.../i915_gem_objects. For example,
[ 1524.757545] BUG: unable to handle kernel paging request at f53af748
[ 1524.757572] IP: [<c1406982>] per_file_stats+0x12/0x100
[ 1524.757599] *pdpt = 0000000001b13001 *pde = 00000000379fb067 *pte = 80000000353af060
[ 1524.757621] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[ 1524.757637] Modules linked in: ctr ccm arc4 ath9k ath9k_common ath9k_hw ath snd_hda_codec_conexant mac80211 snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec bnep snd_hwdep rfcomm snd_pcm gpio_ich dell_wmi sparse_keymap snd_seq_midi hid_multitouch uvcvideo snd_seq_midi_event dell_laptop snd_rawmidi dcdbas snd_seq videobuf2_vmalloc videobuf2_memops videobuf2_core usbhid videodev snd_seq_device coretemp snd_timer hid joydev kvm_intel cfg80211 ath3k kvm btusb bluetooth serio_raw snd microcode soundcore lpc_ich wmi mac_hid parport_pc ppdev lp parport psmouse ahci libahci
[ 1524.757825] CPU: 3 PID: 1911 Comm: intel-gpu-overl Tainted: G W OE 3.15.0-rc3+ #96
[ 1524.757840] Hardware name: Dell Inc. Inspiron 1090/Inspiron 1090, BIOS A06 08/23/2011
[ 1524.757855] task: f52f36c0 ti: f4cbc000 task.ti: f4cbc000
[ 1524.757869] EIP: 0060:[<c1406982>] EFLAGS: 00210202 CPU: 3
[ 1524.757884] EIP is at per_file_stats+0x12/0x100
[ 1524.757896] EAX: 0000002d EBX: 00000000 ECX: f4cbdefc EDX: f53af700
[ 1524.757909] ESI: c1406970 EDI: f53af700 EBP: f4cbde6c ESP: f4cbde5c
[ 1524.757922] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 1524.757934] CR0: 80050033 CR2: f53af748 CR3: 356af000 CR4: 000007f0
[ 1524.757945] Stack:
[ 1524.757957] f4cbdefc 00000000 c1406970 f53af700 f4cbdea8 c12e5f15 f4cbdefc c1406970
[ 1524.757993] 0000ffff f4cbde90 0000002d f5dc5cd0 e4e80438 c1181d59 f4cbded8 f4d89900
[ 1524.758027] f5631b40 e5131074 c1903f37 f4cbdf28 c14068e6 f52648a0 c1927748 c1903f37
[ 1524.758062] Call Trace:
[ 1524.758084] [<c1406970>] ? i915_gem_object_info+0x510/0x510
[ 1524.758106] [<c12e5f15>] idr_for_each+0xa5/0x100
[ 1524.758126] [<c1406970>] ? i915_gem_object_info+0x510/0x510
[ 1524.758148] [<c1181d59>] ? seq_vprintf+0x29/0x50
[ 1524.758168] [<c14068e6>] i915_gem_object_info+0x486/0x510
[ 1524.758189] [<c11823a6>] seq_read+0xd6/0x380
[ 1524.758208] [<c116d11d>] ? final_putname+0x1d/0x40
[ 1524.758227] [<c11822d0>] ? seq_hlist_next_percpu+0x90/0x90
[ 1524.758246] [<c1163e52>] vfs_read+0x82/0x150
[ 1524.758265] [<c11645d6>] SyS_read+0x46/0x90
[ 1524.758285] [<c16b8d8c>] sysenter_do_call+0x12/0x22
[ 1524.758298] Code: f5 8f 2a 00 83 c4 6c 31 c0 5b 5e 5f 5d c3 8d 74 26 00 8d bc 27 00 00 00 00 55 89 e5 57 56 53 83 ec 04 3e 8d 74 26 00 83 41 04 01 <8b> 42 48 01 41 08 8b 42 4c 89 d7 85 c0 75 07 8b 42 60 85 c0 74
[ 1524.758461] EIP: [<c1406982>] per_file_stats+0x12/0x100 SS:ESP 0068:f4cbde5c
[ 1524.758485] CR2: 00000000f53af748
Reported-by: Sam Jansen <sam.jansen@starleaf.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sam Jansen <sam.jansen@starleaf.com>
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Fallout from
commit 46470fc932ac8a0e8317a220b3f4ea4ed903338e
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date: Wed May 21 19:01:06 2014 +0300
drm/i915: Add null state batch to active list
undid the earlier fix of only marking the ctx as initialised after it is
saved by the hardware during a SET_CONTEXT operation:
commit ad1d219974a3d13412268525309c5892f6779ae9
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Sat Dec 28 13:31:49 2013 -0800
drm/i915: set ctx->initialized only after RCS
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
[Jani: add reference to the earlier fix in the commit messsage.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Apparently there are Apple laptops with magic smoke for a VBIOS, which
we fail to find and use. Default to having and setting up backlight in
this case.
This fixes a regression introduced by
commit c675949ec58ca50d5a3ae3c757892f1560f6e896
Author: Jani Nikula <jani.nikula@intel.com>
Date: Wed Apr 9 11:31:37 2014 +0300
drm/i915: do not setup backlight if not available according to VBT
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=77831
Reported-and-tested-by: Matteo Cypriani <mcy@lm7.fr>
Cc: stable@vger.kernel.org # 3.15+
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Jesse noticed that the punit communication needed to query the VLV power
well status can cause substantial delays. Since we can query the state
frequently, for example during I2C transfers, maintain a cached version
of the HW state to get rid of this delay.
This fixes at least one reported regression where boot time increased by
~4 seconds due to frequent power well state queries on VLV during eDP
EDID read.
This regression has been introduced in
commit bb4932c4f17b68f34645ffbcf845e4c29d17290b
Author: Imre Deak <imre.deak@intel.com>
Date: Mon Apr 14 20:24:33 2014 +0300
drm/i915: vlv: check port power domain instead of only D0 for eDP VDD on
Reported-by: Jesse Barnes <jesse.barnes@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
This pull-request fixes hdmi power-off order issue, mixer issues
related to power on/off, and includes trivial fixups.
* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm/exynos: enable vsync interrupt while waiting for vblank
drm/exynos: soft reset mixer before reconfigure after power-on
drm/exynos: allow multiple layer updates per vsync for mixer
drm/exynos: stop mixer before gating clocks during poweroff
drm/exynos: set power state variable after enabling clocks and power
drm/exynos: disable unused windows on apply
drm/exynos: Fix de-registration ordering
drm/exynos: change zero to NULL for sparse
drm/exynos: dpi: Fix NULL pointer dereference with legacy bindings
drm/exynos: hdmi: fix power order issue
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mixer_wait_for_vblank function expects that the upcoming
vsync interrupt handler routine will clear the
wait_vsync_event atomic variable.
For this to happen, interrupts should be enabled and
disabled properly.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Mixer soft reset is a recommended step before reconfiguring
the mixer after power on. Mixer looses the previous state of
DMAs if soft reset. This is the recommendation from the
hardware team.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Allowing only one layer update per vsync can cause issues
while there are update available for both layers. There is
a good amount of possibility to loose updates if we allow
single update per vsync.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Mixer should be power gated only after it is gracefully stopped.
The recommended sequence is to Stop the mixer and wait till
it enters to IDLE state before gating the clocks and power to
the mixer.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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Power state variable holds the state of the mixer device.
Power on and power off functions are toggling these variable
at wrong place.
State variable should be changed to true only after Runtime
PM and clocks are enabled. Else it may result to a situation
where mixer registers are accessed with device power enabled.
Similar logic for poweroff sequence.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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The patch disables non-enabled HW windows on applying
configuration, it will allow to clear windows enabled
by bootloader.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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