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If a NAND device is not really present or pin muxes are not correctly
configured we can lock up the kernel waiting infinitely for NAND_STATUS
to be ready.
This can be easily reproduced on TI's DRA7-evm board by booting it
without NAND support in u-boot and disabling NAND pin muxes in the kernel.
Add timeout when waiting for NAND_CMD_RESET completion. As per ONFi v4.0
tRST can be upto 250ms for EZ-NAND and 5ms for raw NAND.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Flash lock/unlock is a flash-specific operations. Factor out a callback
for it to more readily support other vendors.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Tested-by: VIET NGA DAO <vndao@altera.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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We're not initializing the ooblen field. Our users don't care, since
they check that oobbuf == NULL first, but it's good practice to zero
unused fields out.
We can drop the NULL initializations since we're memset()ing the whole
thing.
Noticed by Coverity, CID #200821, #200822
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The only exit (break) from the preceding loop is nested within a
condition which yields req == NULL. This code is dead.
Coverity CID #752669
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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TclsRising is always 1.
Caught by Coverity.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
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Coverity noticed that these 'ret' assignments weren't being used. Let's
use them.
Note that nand_lock() and nand_unlock() are still not officially used by
any drivers.
Coverity CIDs #1227054 and #1227037
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Caught by Coverity (CID #200625 and others)
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
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'ret' is always zero, so this is all dead code.
This should quiet Coverity CID #1226739.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
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If no devices were found, we would already have skipped over this code.
Detected by Coverity, CID #744270
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
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The PARAM command was long unimplemented and it probably wasn't
noticed because chip probing using only the few bytes returned by the
READID command are good enough in most cases to determine the chip in
use.
Still to notice such a shortcoming earlier in the future would be nice
in case it's something more vital.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The mxc-nand driver never supported the PARAM command to read out the
ONFI parameter page and so always relied on probing my manufacturer and
device id (as provided by the READID command).
This patch implements reading out the first parameter page copy at least
which should be good enough in practise.
This makes the boot log change from
nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xb1
nand: Micron NAND 128MiB 1,8V 16-bit
to
nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xb1
nand: Micron MT29F1G16ABBDAH4
on my machine.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The mxc-nand controller works pagewise and so usually only sends
commands to the flash chip with column == 0. A request with column != 0
from the upper layer is then fulfilled by indexing appropriately into the
device's RAM buffer.
To be able to access the ONFI marker at offset 0x20 in reply to the
READID command however it's invalid to read 32 bytes starting from
column 0.
So let the function used to send the address cycles send the column
address actually passed instead of 0 and fix all callers to pass 0
instead appropriately. Also add some warnings in case this patch changes
the drivers semantics.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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When the hardware operates in 16 bit mode it always reads 16 bits even
for operations that only have the lower 8 bits defined. So the upper
bits must be discarded. Do this in the read_byte callback instead of
when reading the NAND id to support reading byte wise more than 5 bytes
and at other occations (like reading the ONFI parameter page).
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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At least on i.MX25 (i.e. NFCv2) preset_v2 is called with mtd->writesize
== 0 that is before the connect flash chip is detected. It then
configures for 8 bit ECC mode which needs 26 bytes of OOB per 512 bytes
main section. For flashes with a smaller OOB area issuing a read page
command makes the controller stuck with this config.
Note that this currently doesn't hurt because the first read page
command is issued only after detection is complete and preset is called
once more.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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While extending the mxc-nand driver it happend to me a few times that
the device was stuck and this made the machine hang during boot. So
implement a timeout and print a stack trace the first time this happens
to make it debuggable. The return type of the waiting function is also
changed to int to be able to handle the timeout in the caller.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Currently the driver read NFC command registers to get NFC busy flag.
Actually this flag also can be get by reading HSMC_SR register.
Use the read NFC command registers need mapping a huge memory region.
To save the mapped memory region, we change to check NFC busy flag by
reading HSMC_SR register.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Fix typo, "Unkown" -> "Unknown"
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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s3c2410_nand_probe is not the name of the function.
These prints have little utility, so let's just kill them.
Reported-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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pxa3xx_flash_ids wasn't initialized to 0, which in certain cases could
end up containing corrupted values in its members. Fix this to avoid
possible issues.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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As the devicetree binding doesn't require num_cs to exist or be strictly
positive, and neither does the platform data case, a bug appear when
num_cs is set to 0 and panics the kernel.
The issue is that in alloc_nand_resource(), chip is dereferenced without
having a value assigned when num_cs == 0.
Fix this by returning ENODEV is num_cs == 0.
The panic seen is :
Unable to handle kernel NULL pointer dereference at virtual address 000002b8
pgd = c0004000
[000002b8] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT ARM
Modules linked in:
Hardware name: Marvell PXA3xx (Device Tree Support)
task: c3822aa0 ti: c3826000 task.ti: c3826000
PC is at alloc_nand_resource+0x180/0x4a8
LR is at alloc_nand_resource+0xa0/0x4a8
pc : [<c0275b90>] lr : [<c0275ab0>] psr: 68000013
sp : c3827d90 ip : 00000000 fp : 00000000
r10: c3862200 r9 : 0000005e r8 : 00000000
r7 : c3865610 r6 : c3862210 r5 : c3924210 r4 : c3862200
r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00000000
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 0000397f Table: 80004018 DAC: 00000035
Process swapper (pid: 1, stack limit = 0xc3826198)
Stack: (0xc3827d90 to 0xc3828000)
...zip...
[<c0275b90>] (alloc_nand_resource) from [<c0275ff8>] (pxa3xx_nand_probe+0x140/0x978)
[<c0275ff8>] (pxa3xx_nand_probe) from [<c0258c40>] (platform_drv_probe+0x48/0xa4)
[<c0258c40>] (platform_drv_probe) from [<c0257650>] (driver_probe_device+0x80/0x21c)
[<c0257650>] (driver_probe_device) from [<c0257878>] (__driver_attach+0x8c/0x90)
[<c0257878>] (__driver_attach) from [<c0255ec4>] (bus_for_each_dev+0x58/0x88)
[<c0255ec4>] (bus_for_each_dev) from [<c0256ec8>] (bus_add_driver+0xd8/0x1d4)
[<c0256ec8>] (bus_add_driver) from [<c0257f14>] (driver_register+0x78/0xf4)
[<c0257f14>] (driver_register) from [<c00088a8>] (do_one_initcall+0x80/0x1e4)
[<c00088a8>] (do_one_initcall) from [<c048ed08>] (kernel_init_freeable+0xec/0x1b4)
[<c048ed08>] (kernel_init_freeable) from [<c0377d8c>] (kernel_init+0x8/0xe4)
[<c0377d8c>] (kernel_init) from [<c00095f8>] (ret_from_fork+0x14/0x3c)
Code: e503b234 e5953008 e1530001 caffffd1 (e59002b8)
---[ end trace a5770060c8441895 ]---
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Change the handling of the data stage in the driver : don't pump data in
the top-half interrupt, but rather schedule a thread for non dma cases.
This will enable latencies in the data pumping, especially if delays are
required. Moreover platform shall be more reactive as other interrupts
can be served while pumping data.
No throughput degradation was observed, at least on the zylonite
platform, while a slight degradation was being expected.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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The NDDB register holds the data that are needed by the read and write
commands.
However, during a read PIO access, the datasheet specifies that after each 32
bytes read in that register, when BCH is enabled, we have to make sure that the
RDDREQ bit is set in the NDSR register.
This fixes an issue that was seen on the Armada 385, and presumably other mvebu
SoCs, when a read on a newly erased page would end up in the driver reporting a
timeout from the NAND.
Cc: <stable@vger.kernel.org> # v3.14
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Ensures that block2mtd is triggered after the block devices are enumerated
at boot time.
This issue is seen on BCM2835 (Raspberry Pi) systems when mounting JFFS2
block2mtd filesystems, probably because of the delay on enumerating a USB
MMC card reader.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rodrigo Freire <rfreire@redhat.com>
Signed-off-by: Herton Krzesinski <herton@redhat.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
"Assorted stuff from this cycle. The big ones here are multilayer
overlayfs from Miklos and beginning of sorting ->d_inode accesses out
from David"
* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (51 commits)
autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
procfs: fix race between symlink removals and traversals
debugfs: leave freeing a symlink body until inode eviction
Documentation/filesystems/Locking: ->get_sb() is long gone
trylock_super(): replacement for grab_super_passive()
fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
SELinux: Use d_is_positive() rather than testing dentry->d_inode
Smack: Use d_is_positive() rather than testing dentry->d_inode
TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()
Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode
Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb
VFS: Split DCACHE_FILE_TYPE into regular and special types
VFS: Add a fallthrough flag for marking virtual dentries
VFS: Add a whiteout dentry type
VFS: Introduce inode-getting helpers for layered/unioned fs environments
Infiniband: Fix potential NULL d_inode dereference
posix_acl: fix reference leaks in posix_acl_create
autofs4: Wrong format for printing dentry
...
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Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS:
- a number of fixes that didn't make the 3.19 release.
- a number of cleanups.
- preliminary support for Cavium's Octeon 3 SOCs which feature up to
48 MIPS64 R3 cores with FPU and hardware virtualization.
- support for MIPS R6 processors.
Revision 6 of the MIPS architecture is a major revision of the MIPS
architecture which does away with many of original sins of the
architecture such as branch delay slots. This and other changes in
R6 require major changes throughout the entire MIPS core
architecture code and make up for the lion share of this pull
request.
- finally some preparatory work for eXtendend Physical Address
support, which allows support of up to 40 bit of physical address
space on 32 bit processors"
[ Ahh, MIPS can't leave the PAE brain damage alone. It's like
every CPU architect has to make that mistake, but pee in the snow
by changing the TLA. But whether it's called PAE, LPAE or XPA,
it's horrid crud - Linus ]
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (114 commits)
MIPS: sead3: Corrected get_c0_perfcount_int
MIPS: mm: Remove dead macro definitions
MIPS: OCTEON: irq: add CIB and other fixes
MIPS: OCTEON: Don't do acknowledge operations for level triggered irqs.
MIPS: OCTEON: More OCTEONIII support
MIPS: OCTEON: Remove setting of processor specific CVMCTL icache bits.
MIPS: OCTEON: Core-15169 Workaround and general CVMSEG cleanup.
MIPS: OCTEON: Update octeon-model.h code for new SoCs.
MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX
MIPS: OCTEON: Add little-endian support to asm/octeon/octeon.h
MIPS: OCTEON: Implement the core-16057 workaround
MIPS: OCTEON: Delete unused COP2 saving code
MIPS: OCTEON: Use correct instruction to read 64-bit COP0 register
MIPS: OCTEON: Save and restore CP2 SHA3 state
MIPS: OCTEON: Fix FP context save.
MIPS: OCTEON: Save/Restore wider multiply registers in OCTEON III CPUs
MIPS: boot: Provide more uImage options
MIPS: Remove unneeded #ifdef __KERNEL__ from asm/processor.h
MIPS: ip22-gio: Remove legacy suspend/resume support
mips: pci: Add ifdef around pci_proc_domain
...
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Pull misc SCSI patches from James Bottomley:
"This is a short patch set representing a couple of left overs from the
merge window (debug removal and MAINTAINER changes).
Plus one merge window regression (the local workqueue for hpsa) and a
set of bug fixes for several issues (two for scsi-mq and the rest an
assortment of long standing stuff, all cc'd to stable)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
sg: fix EWOULDBLOCK errors with scsi-mq
sg: fix unkillable I/O wait deadlock with scsi-mq
sg: fix read() error reporting
wd719x: add missing .module to wd719x_template
hpsa: correct compiler warnings introduced by hpsa-add-local-workqueue patch
fixed invalid assignment of 64bit mask to host dma_boundary for scatter gather segment boundary limit.
fcoe: Transition maintainership to Vasu
am53c974: remove left-over debugging code
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull one more batch of power management and ACPI updates from Rafael Wysocki:
"These are mostly fixes on top of the previously merged recent PM and
ACPI material.
First, one commit that broke the ACPI LPSS (Low-Power Subsystem)
driver on a Dell box is reverted and there are two stable-candidate
fixes for that driver. Another fix cleans up two recently added ACPI
EC messages that look odd and the printk level of a noisy debug
message in the core ACPI resources handling code is reduced.
In addition to that we have two stable-candidate fixes for the s3c
cpufreq driver, two cpuidle powernv driver updates related to Device
Trees and a PNP subsystem cleanup that will allow us to get rid of
some old ugliness going forward. Also there is a new blacklist entry
for the ACPI backlight code.
Specifics:
- Revert a recent ACPI LPSS driver commit that prevented the touchpad
driver from loading on Dell XPS13 (Jarkko Nikula).
- Make the ACPI LPSS driver disable the I2C controllers and deassert
SPI host controllers resets at startup on Intel BayTrail and
Braswell SoCs in case they have been left in wrong states by the
platform firmware which then may casuse fatal controller driver
failures during resume from hibernation (Mika Westerberg).
- Make two recently added ACPI EC messages look better (Scot Doyle).
- Reduce the printk level of a recently added debug message related
to ACPI resources that may become noisy in some cases (Rafael J
Wysocki).
- Add a new ACPI backlight blacklist entry for Samsung Series 9
(900X3C/900X3D/900X3E/900X4C/900X4D) laptops where the native
backlight interface doesn't work while the ACPI based one does
(Jens Reyer).
- Make the PNP sybsystem's core code use __request_region() followed
by __release_region() instead of __check_region() which then will
allow us to get rid of the latter as it has no more users (Jakub
Sitnicki).
- Fix a build breakage and an issue with two __init functions that
may be called after initialization in the s3c cpufreq driver (Arnd
Bergmann).
- Make the powernv cpuidle driver read target_residency values for
idle states from a Device Tree (as we have the suitable DT bindings
for that now) and improve the parsing of the powermgmt DT node in
that driver (Preeti U Murthy)"
* tag 'pm+acpi-3.20-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: powernv: Avoid endianness conversions while parsing DT
cpufreq: s3c: remove last use of resume_clocks callback
cpufreq: s3c: remove incorrect __init annotations
ACPI / LPSS: Deassert resets for SPI host controllers on Braswell
ACPI / LPSS: Always disable I2C host controllers
ACPI / resources: Change pr_info() to pr_debug() for debug information
ACPI / video: Disable native backlight on Samsung Series 9 laptops
cpuidle: powernv: Read target_residency value of idle states from DT if available
Revert "ACPI / LPSS: Remove non-existing clock control from Intel Lynxpoint I2C"
ACPI / EC: Remove non-standard log emphasis
PNP: Switch from __check_region() to __request_region()
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Pull followup block layer updates from Jens Axboe:
"Two things in this pull request:
- A block throttle oops fix (marked for stable) from Thadeu.
- The NVMe fixes/features queued up for 3.20, but merged later in the
process. From Keith. We should have gotten this merged earlier,
we're ironing out the kinks in the process. Will be ready for the
initial pull next series"
* 'for-linus' of git://git.kernel.dk/linux-block:
blk-throttle: check stats_cpu before reading it from sysfs
NVMe: Fix potential corruption on sync commands
NVMe: Remove unused variables
NVMe: Fix scsi mode select llbaa setting
NVMe: Fix potential corruption during shutdown
NVMe: Asynchronous controller probe
NVMe: Register management handle under nvme class
NVMe: Update SCSI Inquiry VPD 83h translation
NVMe: Metadata format support
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull more device mapper changes from Mike Snitzer:
- Significant dm-crypt CPU scalability performance improvements thanks
to changes that enable effective use of an unbound workqueue across
all available CPUs. A large battery of tests were performed to
validate these changes, summary of results is available here:
https://www.redhat.com/archives/dm-devel/2015-February/msg00106.html
- A few additional stable fixes (to DM core, dm-snapshot and dm-mirror)
and a small fix to the dm-space-map-disk.
* tag 'dm-3.20-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm snapshot: fix a possible invalid memory access on unload
dm: fix a race condition in dm_get_md
dm crypt: sort writes
dm crypt: add 'submit_from_crypt_cpus' option
dm crypt: offload writes to thread
dm crypt: remove unused io_pool and _crypt_io_pool
dm crypt: avoid deadlock in mempools
dm crypt: don't allocate pages for a partial request
dm crypt: use unbound workqueue for request processing
dm io: reject unsupported DISCARD requests with EOPNOTSUPP
dm mirror: do not degrade the mirror on discard error
dm space map disk: fix sm_disk_count_is_more_than_one()
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git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
"The highlights this round include:
- Update vhost-scsi to support F_ANY_LAYOUT using mm/iov_iter.c
logic, and signal VERSION_1 support (MST + Viro + nab)
- Fix iscsi/iser-target to remove problematic active_ts_set usage
(Gavin Guo)
- Update iscsi/iser-target to support multi-sequence sendtargets
(Sagi)
- Fix original PR_APTPL_BUF_LEN 8k size limitation (Martin Svec)
- Add missing WRITE_SAME end-of-device sanity check (Bart)
- Check for LBA + sectors wrap-around in sbc_parse_cdb() (nab)
- Other various minor SPC/SBC compliance fixes based upon Ronnie
Sahlberg test suite (nab)"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (32 commits)
target: Set LBPWS10 bit in Logical Block Provisioning EVPD
target: Fail UNMAP when emulate_tpu=0
target: Fail WRITE_SAME w/ UNMAP=1 when emulate_tpws=0
target: Add sanity checks for DPO/FUA bit usage
target: Perform PROTECT sanity checks for WRITE_SAME
target: Fail I/O with PROTECT bit when protection is unsupported
target: Check for LBA + sectors wrap-around in sbc_parse_cdb
target: Add missing WRITE_SAME end-of-device sanity check
iscsi-target: Avoid IN_LOGOUT failure case for iser-target
target: Fix PR_APTPL_BUF_LEN buffer size limitation
iscsi-target: Drop problematic active_ts_list usage
iscsi/iser-target: Support multi-sequence sendtargets text response
iser-target: Remove duplicate function names
vhost/scsi: potential memory corruption
vhost/scsi: Global tcm_vhost -> vhost_scsi rename
vhost/scsi: Drop left-over scsi_tcq.h include
vhost/scsi: Set VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits
vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vq
vhost/scsi: Add ANY_LAYOUT iov -> sgl mapping prerequisites
vhost/scsi: Change vhost_scsi_map_to_sgl to accept iov ptr + len
...
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull more input updates from Dmitry Torokhov:
"The second round of updates for the input subsystem.
Updates to ALPS an bfin_roraty drivers and a couple oother fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: psmouse - use IS_ENABLED instead of homegrown code
Input: bfin_rotary - introduce open and close methods
Input: bfin_rotary - convert to use managed resources
Input: bfin_rotary - use generic IO functions
Input: bfin_rotary - move pin lists into into platform data
Input: bfin_rotary - move platform header to linux/platform_data
Input: bfin_rotary - mark suspend and resume code as __maybe_unused
Input: bfin_rotary - fix potential oops in interrupt handler
Input: ALPS - move v7 packet info to Documentation and v6 packet info
Input: ALPS - fix confusing comment in protocol data
Input: ALPS - do not mix trackstick and external PS/2 mouse data
Input: ALPS - fix trackstick detection on some Dell Latitudes
Input: ALPS - consolidate setting protocol parameters
Input: ALPS - split protocol data from model info
Input: ALPS - make Rushmore a separate protocol
Input: ALPS - renumber protocol numbers
Input: adi - remove an unnecessary check
Input: pxa27x_keypad - remove an unneeded NULL check
Input: soc_button_array - use "Windows" key for "Home"
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull InfiniBand/RDMA updates from Roland Dreier:
- Re-enable on-demand paging changes with stable ABI
- Fairly large set of ocrdma HW driver fixes
- Some qib HW driver fixes
- Other miscellaneous changes
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (43 commits)
IB/qib: Add blank line after declaration
IB/qib: Fix checkpatch warnings
IB/mlx5: Enable the ODP capability query verb
IB/core: Add on demand paging caps to ib_uverbs_ex_query_device
IB/core: Add support for extended query device caps
RDMA/cxgb4: Don't hang threads forever waiting on WR replies
RDMA/ocrdma: Fix off by one in ocrdma_query_gid()
RDMA/ocrdma: Use unsigned for bit index
RDMA/ocrdma: Help gcc generate better code for ocrdma_srq_toggle_bit
RDMA/ocrdma: Update the ocrdma module version string
RDMA/ocrdma: set vlan present bit for user AH
RDMA/ocrdma: remove reference of ocrdma_dev out of ocrdma_qp structure
RDMA/ocrdma: Add support for interrupt moderation
RDMA/ocrdma: Honor return value of ocrdma_resolve_dmac
RDMA/ocrdma: Allow expansion of the SQ CQEs via buddy CQ expansion of the QP
RDMA/ocrdma: Discontinue support of RDMA-READ-WITH-INVALIDATE
RDMA/ocrdma: Host crash on destroying device resources
RDMA/ocrdma: Report correct state in ibv_query_qp
RDMA/ocrdma: Debugfs enhancments for ocrdma driver
RDMA/ocrdma: Report correct count of interrupt vectors while registering ocrdma device
...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Summary:
- legacy PM code removed from the core, there were no users anymore
(thanks to Lars-Peter Clausen)
- new driver for Broadcom iProc
- bigger driver updates for designware, rk3x, cadence, ocores
- a bunch of smaller updates and bugfixes"
* 'i2c/for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (31 commits)
i2c: ocores: rework clk code to handle NULL cookie
i2c: designware-baytrail: another fixup for proper Kconfig dependencies
i2c: fix reference to functionality constants definition
i2c: iproc: Add Broadcom iProc I2C Driver
i2c: designware-pci: update Intel copyright line
i2c: ocores: add common clock support
i2c: hix5hd2: add COMPILE_TEST
i2c: clarify comments about the dev_released completion
i2c: ocores: fix clock-frequency binding usage
i2c: tegra: Maintain CPU endianness
i2c: designware-baytrail: use proper Kconfig dependencies
i2c: designware: Do not calculate SCL timing parameters needlessly
i2c: do not try to load modules for of-registered devices
i2c: designware: Add Intel Baytrail PMIC I2C bus support
i2c: designware: Add i2c bus locking support
of: i2c: Add i2c-mux-idle-disconnect DT property to PCA954x mux driver
i2c: designware: use {readl|writel}_relaxed instead of readl/writel
i2c: designware-pci: no need to provide clk_khz
i2c: designware-pci: remove Moorestown support
i2c: imx: whitespace and checkpatch cleanup
...
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git://git.linaro.org/people/mike.turquette/linux
Pull clock framework updates from Mike Turquette:
"The clock framework changes contain the usual driver additions,
enhancements and fixes mostly for ARM32, ARM64, MIPS and Power-based
devices.
Additionally the framework core underwent a bit of surgery with two
major changes:
- The boundary between the clock core and clock providers (e.g clock
drivers) is now more well defined with dedicated provider helper
functions. struct clk no longer maps 1:1 with the hardware clock
but is a true per-user cookie which helps us tracker users of
hardware clocks and debug bad behavior.
- The addition of rate constraints for clocks. Rate ranges are now
supported which are analogous to the voltage ranges in the
regulator framework.
Unfortunately these changes to the core created some breakeage. We
think we fixed it all up but for this reason there are lots of last
minute commits trying to undo the damage"
* tag 'clk-for-linus-3.20' of git://git.linaro.org/people/mike.turquette/linux: (113 commits)
clk: Only recalculate the rate if needed
Revert "clk: mxs: Fix invalid 32-bit access to frac registers"
clk: qoriq: Add support for the platform PLL
powerpc/corenet: Enable CLK_QORIQ
clk: Replace explicit clk assignment with __clk_hw_set_clk
clk: Add __clk_hw_set_clk helper function
clk: Don't dereference parent clock if is NULL
MIPS: Alchemy: Remove bogus args from alchemy_clk_fgcs_detr
clkdev: Always allocate a struct clk and call __clk_get() w/ CCF
clk: shmobile: div6: Avoid division by zero in .round_rate()
clk: mxs: Fix invalid 32-bit access to frac registers
clk: omap: compile legacy omap3 clocks conditionally
clkdev: Export clk_register_clkdev
clk: Add rate constraints to clocks
clk: remove clk-private.h
pci: xgene: do not use clk-private.h
arm: omap2+ remove dead clock code
clk: Make clk API return per-user struct clk instances
clk: tegra: Define PLLD_DSI and remove dsia(b)_mux
clk: tegra: Add support for the Tegra132 CAR IP block
...
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Pull VFIO updates from Alex Williamson:
- IOMMU updates based on trace analysis
- VFIO device request interface
* tag 'vfio-v3.20-rc1' of git://github.com/awilliam/linux-vfio:
vfio-pci: Add device request interface
vfio-pci: Generalize setup of simple eventfds
vfio: Add and use device request op for vfio bus drivers
vfio: Tie IOMMU group reference to vfio group
vfio: Add device tracking during unbind
vfio/type1: Add conditional rescheduling
vfio/type1: Chunk contiguous reserved/invalid page mappings
vfio/type1: DMA unmap chunking
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management fix from Zhang Rui:
"One patch to fix a problem that all Exynos SoCs will break at boot
time"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: exynos: fix: Check if data->tmu_read callback is present before read
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Intel Quark SoC support from Ingo Molnar:
"This adds support for Intel Quark X1000 SoC boards, used in the low
power 32-bit x86 Intel Galileo microcontroller board intended for the
Arduino space.
There's been some preparatory core x86 patches for Quark CPU quirks
merged already, but this rounds it all up and adds Kconfig enablement.
It's a clean hardware enablement addition tree at this point"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/intel/quark: Fix simple_return.cocci warnings
x86/intel/quark: Fix ptr_ret.cocci warnings
x86/intel/quark: Add Intel Quark platform support
x86/intel/quark: Add Isolated Memory Regions for Quark X1000
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
"This contains:
- EFI fixes
- a boot printout fix
- ASLR/kASLR fixes
- intel microcode driver fixes
- other misc fixes
Most of the linecount comes from an EFI revert"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/ASLR: Avoid PAGE_SIZE redefinition for UML subarch
x86/microcode/intel: Handle truncated microcode images more robustly
x86/microcode/intel: Guard against stack overflow in the loader
x86, mm/ASLR: Fix stack randomization on 64-bit systems
x86/mm/init: Fix incorrect page size in init_memory_mapping() printks
x86/mm/ASLR: Propagate base load address calculation
Documentation/x86: Fix path in zero-page.txt
x86/apic: Fix the devicetree build in certain configs
Revert "efi/libstub: Call get_memory_map() to obtain map and desc sizes"
x86/efi: Avoid triple faults during EFI mixed mode calls
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into for-linus
Merge 3.20 NVMe changes from Keith.
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* pnp:
PNP: Switch from __check_region() to __request_region()
* pm-cpuidle:
cpuidle: powernv: Avoid endianness conversions while parsing DT
cpuidle: powernv: Read target_residency value of idle states from DT if available
* pm-cpufreq:
cpufreq: s3c: remove last use of resume_clocks callback
cpufreq: s3c: remove incorrect __init annotations
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* acpi-ec:
ACPI / EC: Remove non-standard log emphasis
* acpi-soc:
ACPI / LPSS: Deassert resets for SPI host controllers on Braswell
ACPI / LPSS: Always disable I2C host controllers
Revert "ACPI / LPSS: Remove non-existing clock control from Intel Lynxpoint I2C"
* acpi-video:
ACPI / video: Disable native backlight on Samsung Series 9 laptops
* acpi-resources:
ACPI / resources: Change pr_info() to pr_debug() for debug information
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Pull IPMI driver updates from Corey Minyard:
"Some minor fixes and cleanups, nothing big.
In for-next for a while and I've done some extensive beating on the
driver since I have it working in qemu and can do creatively cruel
things to it"
* tag 'for-linus-3.20-1' of git://git.code.sf.net/p/openipmi/linux-ipmi:
ipmi: Fix a memory ordering issue
ipmi: Remove uses of return value of seq_printf
ipmi: Use is_visible callback for conditional sysfs entries
ipmi: Free ipmi_recv_msg messages from the linked list on close
ipmi: avoid gcc warning
ipmi: Update timespec usage to timespec64
ipmi: Cleanup DEBUG_TIMING ifdef usage
drivers:char:ipmi: Remove unneeded FIXME comment in the file,ipmi_si_intf.c
char: ipmi: Remove obsolete cleanup for clientdata
ipmi: Remove a FIXME for slab conversion
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'qib' and 'srp' into for-next
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Upstream checkpatch now requires this.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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For, !HAVE_CLK the clk API returns a NULL cookie. Rework the
initialization code to handle that. If clk_get_rate() delivers 0, we use
the fallback mechanisms. The patch is pretty easy when ignoring white
space issues (git diff -b).
Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
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The exynos_tmu_data() function should on entrance test not only for valid
data pointer, but also for data->tmu_read one.
It is important, since afterwards it is dereferenced to get temperature code.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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