| Commit message (Collapse) | Author | Age |
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The current method of cat-ing register file dumps the entire
address space. One can use dd command to dump a subrange within
the address space. However one needs to know the string length
of each line which is derived from max address, the character
length of each register entry and the format.
Provide simple means to dump a range by allowing user to specify
the start address and the count of registers. When the data is read
convert the dump address to a starting position in the file. Similarly
if the file offset goes beyond the dump range return 0 to indicate
that the data is already dumped.
Also provide means to write to a register address.
CRs-Fixed: 1001770
Change-Id: I3466ce89007d127151f6760328edad116d679db8
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
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Specifically for the case of reads that use the Extended Register
Read Long command, a multi-byte read operation is broken up into
8-byte chunks. However the call to spmi_ext_register_readl() is
incorrectly passing 'val_size', which if greater than 8 will
always fail. The argument should instead be 'len'.
CRs-Fixed: 1002440
Change-Id: I2eb9f1e11f97cf7eeee4314616bc5d06443c8920
Fixes: c9afbb05a9ff ("regmap: spmi: support base and extended register spaces")
Signed-off-by: Jack Pham <jackp@codeaurora.org>
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Pointer map returned from dev_get_name may be null.
Add null check before derefering.
CRs-Fixed: 985337
Change-Id: I952ae63e9b909dde763b3024d90fe4553e852860
Signed-off-by: Meng Wang <mwang@codeaurora.org>
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The direct firmware class API support original relied
on the destination address to determine which file operations
to link to the data binary file. Since the 4.4 kernel version,
this was changed to an attribute group.
Fix this by adding a direct firmware API attribute group and
appropriately assign it when necessary.
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
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regcache sync can call multi register write to sync multiple
register writes to hardware in one transaction. Change enables
support from soundwire framework to sync multiple registers
in one transaction.
Change-Id: Iafe35bf9b8987fb7214efff0d7d4ae3e0a6a4072
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
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Call regmap_raw_multi_reg_write API from regcache sync to sync
multiple registers to the hardware if bus interface supports
multi register write. This change will help in reducing the
latency for syncing the registers to the hardware.
Change-Id: I94d19434dc7465434f10db9f7bd62fcc8246d845
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
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Allocated memory is not getting freed in remove request.
This change is to free the memory allocated to avoid memory
leaks.
Change-Id: I1225d492b7f58f8bda2621ec0bb2bd201d8dee6c
Signed-off-by: Srinivas Rao L <lsrao@codeaurora.org>
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no-map-fixup feature for dma-removed reserve region does a
late memblock remove. This late removal is a slight
deviation from conventional memblock flow. That leads to a
race between pfn_valid->memblock_search, and
memblock_remove.
To fix this, use a read seqlock in memblock_search, which
would ensure minimum overhead in search path. And export
two APIs to let code doing late memblock remove apply
write seqlock. write seqlock would ensure that search
retries if the list is updated concurrently.
The two exported APIs which should be called before
and after modifying memblock regions, late in boot, are
- memblock_region_resize_late_begin
- memblock_region_resize_late_end
The code to alter memblock regions should be guarded by
these APIs.
CRs-fixed: 967728
Change-Id: I6a10c3e980002048aafeaf829a16119848c6a099
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>
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* lsk-44/linux-linaro-lsk-v4.4:
Linux 4.4.3
modules: fix modparam async_probe request
module: wrapper for symbol name.
itimers: Handle relative timers with CONFIG_TIME_LOW_RES proper
posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper
timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
prctl: take mmap sem for writing to protect against others
xfs: log mount failures don't wait for buffers to be released
Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"
xfs: inode recovery readahead can race with inode buffer creation
libxfs: pack the agfl header structure so XFS_AGFL_SIZE is correct
ovl: setattr: check permissions before copy-up
ovl: root: copy attr
ovl: check dentry positiveness in ovl_cleanup_whiteouts()
ovl: use a minimal buffer in ovl_copy_xattr
ovl: allow zero size xattr
futex: Drop refcount if requeue_pi() acquired the rtmutex
devm_memremap_release(): fix memremap'd addr handling
ipc/shm: handle removed segments gracefully in shm_mmap()
intel_scu_ipcutil: underflow in scu_reg_access()
mm,thp: khugepaged: call pte flush at the time of collapse
dump_stack: avoid potential deadlocks
radix-tree: fix oops after radix_tree_iter_retry
drivers/hwspinlock: fix race between radix tree insertion and lookup
radix-tree: fix race in gang lookup
MAINTAINERS: return arch/sh to maintained state, with new maintainers
memcg: only free spare array when readers are done
numa: fix /proc/<pid>/numa_maps for hugetlbfs on s390
fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list()
scripts/bloat-o-meter: fix python3 syntax error
dma-debug: switch check from _text to _stext
m32r: fix m32104ut_defconfig build fail
xhci: Fix list corruption in urb dequeue at host removal
Revert "xhci: don't finish a TD if we get a short-transfer event mid TD"
iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts
iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG
iommu/vt-d: Fix mm refcounting to hold mm_count not mm_users
iommu/amd: Correct the wrong setting of alias DTE in do_attach
iommu/vt-d: Don't skip PCI devices when disabling IOTLB
Input: vmmouse - fix absolute device registration
string_helpers: fix precision loss for some inputs
Input: i8042 - add Fujitsu Lifebook U745 to the nomux list
Input: elantech - mark protocols v2 and v3 as semi-mt
mm: fix regression in remap_file_pages() emulation
mm: replace vma_lock_anon_vma with anon_vma_lock_read/write
mm: fix mlock accouting
libnvdimm: fix namespace object confusion in is_uuid_busy()
mm: soft-offline: check return value in second __get_any_page() call
perf kvm record/report: 'unprocessable sample' error while recording/reporting guest data
KVM: PPC: Fix ONE_REG AltiVec support
KVM: PPC: Fix emulation of H_SET_DABR/X on POWER8
KVM: arm/arm64: Fix reference to uninitialised VGIC
arm64: dma-mapping: fix handling of devices registered before arch_initcall
ARM: OMAP2+: Fix ppa_zero_params and ppa_por_params for rodata
ARM: OMAP2+: Fix save_secure_ram_context for rodata
ARM: OMAP2+: Fix l2dis_3630 for rodata
ARM: OMAP2+: Fix l2_inv_api_params for rodata
ARM: OMAP2+: Fix wait_dll_lock_timed for rodata
ARM: dts: at91: sama5d4ek: add phy address and IRQ for macb0
ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type
ARM: dts: at91: sama5d4: fix instance id of DBGU
ARM: dts: at91: sama5d4 xplained: properly mux phy interrupt
ARM: dts: omap5-board-common: enable rtc and charging of backup battery
ARM: dts: Fix omap5 PMIC control lines for RTC writes
ARM: dts: Fix wl12xx missing clocks that cause hangs
ARM: nomadik: fix up SD/MMC DT settings
ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
ARM: 8519/1: ICST: try other dividends than 1
arm64: mm: avoid calling apply_to_page_range on empty range
ARM: mvebu: remove duplicated regulator definition in Armada 388 GP
powerpc/ioda: Set "read" permission when "write" is set
powerpc/powernv: Fix stale PE primary bus
powerpc/eeh: Fix stale cached primary bus
powerpc/eeh: Fix PE location code
SUNRPC: Fixup socket wait for memory
udf: Check output buffer length when converting name to CS0
udf: Prevent buffer overrun with multi-byte characters
udf: limit the maximum number of indirect extents in a row
pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn
nfs: Fix race in __update_open_stateid()
pNFS/flexfiles: Fix an Oopsable typo in ff_mirror_match_fh()
NFS: Fix attribute cache revalidation
cifs: fix erroneous return value
cifs_dbg() outputs an uninitialized buffer in cifs_readdir()
cifs: fix race between call_async() and reconnect()
cifs: Ratelimit kernel log messages
iio: inkern: fix a NULL dereference on error
iio: pressure: mpl115: fix temperature offset sign
iio: light: acpi-als: Report data as processed
iio: dac: mcp4725: set iio name property in sysfs
iio: add IIO_TRIGGER dependency to STK8BA50
iio: add HAS_IOMEM dependency to VF610_ADC
iio-light: Use a signed return type for ltr501_match_samp_freq()
iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer.
iio: adis_buffer: Fix out-of-bounds memory access
scsi: fix soft lockup in scsi_remove_target() on module removal
SCSI: Add Marvell Console to VPD blacklist
scsi_dh_rdac: always retry MODE SELECT on command lock violation
drivers/scsi/sg.c: mark VMA as VM_IO to prevent migration
SCSI: fix crashes in sd and sr runtime PM
iscsi-target: Fix potential dead-lock during node acl delete
scsi: add Synology to 1024 sector blacklist
klist: fix starting point removed bug in klist iterators
tracepoints: Do not trace when cpu is offline
tracing: Fix freak link error caused by branch tracer
perf tools: tracepoint_error() can receive e=NULL, robustify it
tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines
ptrace: use fsuid, fsgid, effective creds for fs access checks
Btrfs: fix direct IO requests not reporting IO error to user space
Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl
Btrfs: fix page reading in extent_same ioctl leading to csum errors
Btrfs: fix invalid page accesses in extent_same (dedup) ioctl
btrfs: properly set the termination value of ctx->pos in readdir
Revert "btrfs: clear PF_NOFREEZE in cleaner_kthread()"
Btrfs: fix fitrim discarding device area reserved for boot loader's use
btrfs: handle invalid num_stripes in sys_array
ext4: don't read blocks from disk after extents being swapped
ext4: fix potential integer overflow
ext4: fix scheduling in atomic on group checksum failure
serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485)
serial: 8250_pci: Add Intel Broadwell ports
tty: Add support for PCIe WCH382 2S multi-IO card
pty: make sure super_block is still valid in final /dev/tty close
pty: fix possible use after free of tty->driver_data
staging/speakup: Use tty_ldisc_ref() for paste kworker
phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload
phy: twl4030-usb: Relase usb phy on unload
ALSA: seq: Fix double port list deletion
ALSA: seq: Fix leak of pool buffer at concurrent writes
ALSA: pcm: Fix rwsem deadlock for non-atomic PCM stream
ALSA: hda - Cancel probe work instead of flush at remove
x86/mm: Fix vmalloc_fault() to handle large pages properly
x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache()
x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable
x86/mm/pat: Avoid truncation when converting cpa->numpages to address
x86/mm: Fix types used in pgprot cacheability flags translations
Linux 4.4.2
HID: multitouch: fix input mode switching on some Elan panels
mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress
zsmalloc: fix migrate_zspage-zs_free race condition
zram: don't call idr_remove() from zram_remove()
zram: try vmalloc() after kmalloc()
zram/zcomp: use GFP_NOIO to allocate streams
rtlwifi: rtl8821ae: Fix 5G failure when EEPROM is incorrectly encoded
rtlwifi: rtl8821ae: Fix errors in parameter initialization
crypto: marvell/cesa - fix test in mv_cesa_dev_dma_init()
crypto: atmel-sha - remove calls of clk_prepare() from atomic contexts
crypto: atmel-sha - fix atmel_sha_remove()
crypto: algif_skcipher - Do not set MAY_BACKLOG on the async path
crypto: algif_skcipher - Do not dereference ctx without socket lock
crypto: algif_skcipher - Do not assume that req is unchanged
crypto: user - lock crypto_alg_list on alg dump
EVM: Use crypto_memneq() for digest comparisons
crypto: algif_hash - wait for crypto_ahash_init() to complete
crypto: shash - Fix has_key setting
crypto: chacha20-ssse3 - Align stack pointer to 64 bytes
crypto: caam - make write transactions bufferable on PPC platforms
crypto: algif_skcipher - sendmsg SG marking is off by one
crypto: algif_skcipher - Load TX SG list after waiting
crypto: crc32c - Fix crc32c soft dependency
crypto: algif_skcipher - Fix race condition in skcipher_check_key
crypto: algif_hash - Fix race condition in hash_check_key
crypto: af_alg - Forbid bind(2) when nokey child sockets are present
crypto: algif_skcipher - Remove custom release parent function
crypto: algif_hash - Remove custom release parent function
crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path
ahci: Intel DNV device IDs SATA
libata: disable forced PORTS_IMPL for >= AHCI 1.3
crypto: algif_skcipher - Add key check exception for cipher_null
crypto: skcipher - Add crypto_skcipher_has_setkey
crypto: algif_hash - Require setkey before accept(2)
crypto: hash - Add crypto_ahash_has_setkey
crypto: algif_skcipher - Add nokey compatibility path
crypto: af_alg - Add nokey compatibility path
crypto: af_alg - Fix socket double-free when accept fails
crypto: af_alg - Disallow bind/setkey/... after accept(2)
crypto: algif_skcipher - Require setkey before accept(2)
sched: Fix crash in sched_init_numa()
ext4 crypto: add missing locking for keyring_key access
iommu/io-pgtable-arm: Ensure we free the final level on teardown
tty: Fix unsafe ldisc reference via ioctl(TIOCGETD)
tty: Retry failed reopen if tty teardown in-progress
tty: Wait interruptibly for tty lock on reopen
n_tty: Fix unsafe reference to "other" ldisc
usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms
usb: xhci: handle both SSIC ports in PME stuck quirk
usb: phy: msm: fix error handling in probe.
usb: cdc-acm: send zero packet for intel 7260 modem
usb: cdc-acm: handle unlinked urb in acm read callback
USB: option: fix Cinterion AHxx enumeration
USB: serial: option: Adding support for Telit LE922
USB: cp210x: add ID for IAI USB to RS485 adaptor
USB: serial: ftdi_sio: add support for Yaesu SCU-18 cable
usb: hub: do not clear BOS field during reset device
USB: visor: fix null-deref at probe
USB: serial: visor: fix crash on detecting device without write_urbs
ASoC: rt5645: fix the shift bit of IN1 boost
saa7134-alsa: Only frees registered sound cards
ALSA: dummy: Implement timer backend switching more safely
ALSA: hda - Fix bad dereference of jack object
ALSA: hda - Fix speaker output from VAIO AiO machines
Revert "ALSA: hda - Fix noise on Gigabyte Z170X mobo"
ALSA: hda - Fix static checker warning in patch_hdmi.c
ALSA: hda - Add fixup for Mac Mini 7,1 model
ALSA: timer: Fix race between stop and interrupt
ALSA: timer: Fix wrong instance passed to slave callbacks
ALSA: timer: Fix race at concurrent reads
ALSA: timer: Fix link corruption due to double start or stop
ALSA: timer: Fix leftover link at closing
ALSA: timer: Code cleanup
ALSA: seq: Fix lockdep warnings due to double mutex locks
ALSA: seq: Fix race at closing in virmidi driver
ALSA: seq: Fix yet another races among ALSA timer accesses
ASoC: dpcm: fix the BE state on hw_free
ALSA: pcm: Fix potential deadlock in OSS emulation
ALSA: hda/realtek - Support Dell headset mode for ALC225
ALSA: hda/realtek - Support headset mode for ALC225
ALSA: hda/realtek - New codec support of ALC225
ALSA: rawmidi: Fix race at copying & updating the position
ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check
ALSA: rawmidi: Make snd_rawmidi_transmit() race-free
ALSA: seq: Degrade the error message for too many opens
ALSA: seq: Fix incorrect sanity check at snd_seq_oss_synth_cleanup()
ALSA: dummy: Disable switching timer backend via sysfs
ALSA: compress: Disable GET_CODEC_CAPS ioctl for some architectures
ALSA: hda - disable dynamic clock gating on Broxton before reset
ALSA: Add missing dependency on CONFIG_SND_TIMER
ALSA: bebob: Use a signed return type for get_formation_index
ALSA: usb-audio: avoid freeing umidi object twice
ALSA: usb-audio: Add native DSD support for PS Audio NuWave DAC
ALSA: usb-audio: Fix OPPO HA-1 vendor ID
ALSA: usb-audio: Add quirk for Microsoft LifeCam HD-6000
ALSA: usb-audio: Fix TEAC UD-501/UD-503/NT-503 usb delay
hrtimer: Handle remaining time proper for TIME_LOW_RES
md/raid: only permit hot-add of compatible integrity profiles
media: i2c: Don't export ir-kbd-i2c module alias
parisc: Fix __ARCH_SI_PREAMBLE_SIZE
parisc: Protect huge page pte changes with spinlocks
printk: do cond_resched() between lines while outputting to consoles
tracing/stacktrace: Show entire trace if passed in function not found
tracing: Fix stacktrace skip depth in trace_buffer_unlock_commit_regs()
PCI: Fix minimum allocation address overwrite
PCI: host: Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD
mtd: nand: assign reasonable default name for NAND drivers
wlcore/wl12xx: spi: fix NULL pointer dereference (Oops)
wlcore/wl12xx: spi: fix oops on firmware load
ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup
ocfs2/dlm: ignore cleaning the migration mle that is inuse
ALSA: hda - Implement loopback control switch for Realtek and other codecs
block: fix bio splitting on max sectors
base/platform: Fix platform drivers with no probe callback
HID: usbhid: fix recursive deadlock
ocfs2: NFS hangs in __ocfs2_cluster_lock due to race with ocfs2_unblock_lock
block: split bios to max possible length
NFSv4.1/pnfs: Fixup an lo->plh_block_lgets imbalance in layoutreturn
crypto: sun4i-ss - add missing statesize
Linux 4.4.1
arm64: kernel: fix architected PMU registers unconditional access
arm64: kernel: enforce pmuserenr_el0 initialization and restore
arm64: mm: ensure that the zero page is visible to the page table walker
arm64: Clear out any singlestep state on a ptrace detach operation
powerpc/module: Handle R_PPC64_ENTRY relocations
scripts/recordmcount.pl: support data in text section on powerpc
powerpc: Make {cmp}xchg* and their atomic_ versions fully ordered
powerpc: Make value-returning atomics fully ordered
powerpc/tm: Check for already reclaimed tasks
batman-adv: Drop immediate orig_node free function
batman-adv: Drop immediate batadv_hard_iface free function
batman-adv: Drop immediate neigh_ifinfo free function
batman-adv: Drop immediate batadv_neigh_node free function
batman-adv: Drop immediate batadv_orig_ifinfo free function
batman-adv: Avoid recursive call_rcu for batadv_nc_node
batman-adv: Avoid recursive call_rcu for batadv_bla_claim
team: Replace rcu_read_lock with a mutex in team_vlan_rx_kill_vid
net/mlx5_core: Fix trimming down IRQ number
bridge: fix lockdep addr_list_lock false positive splat
ipv6: update skb->csum when CE mark is propagated
net: bpf: reject invalid shifts
phonet: properly unshare skbs in phonet_rcv()
dwc_eth_qos: Fix dma address for multi-fragment skbs
bonding: Prevent IPv6 link local address on enslaved devices
net: preserve IP control block during GSO segmentation
udp: disallow UFO for sockets with SO_NO_CHECK option
net: pktgen: fix null ptr deref in skb allocation
sched,cls_flower: set key address type when present
tcp_yeah: don't set ssthresh below 2
ipv6: tcp: add rcu locking in tcp_v6_send_synack()
net: sctp: prevent writes to cookie_hmac_alg from accessing invalid memory
vxlan: fix test which detect duplicate vxlan iface
unix: properly account for FDs passed over unix sockets
xhci: refuse loading if nousb is used
usb: core: lpm: fix usb3_hardware_lpm sysfs node
USB: cp210x: add ID for ELV Marble Sound Board 1
rtlwifi: fix memory leak for USB device
ASoC: compress: Fix compress device direction check
ASoC: wm5110: Fix PGA clear when disabling DRE
ALSA: timer: Handle disconnection more safely
ALSA: hda - Flush the pending probe work at remove
ALSA: hda - Fix missing module loading with model=generic option
ALSA: hda - Fix bass pin fixup for ASUS N550JX
ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0
ALSA: hrtimer: Fix stall by hrtimer_cancel()
ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode
ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
ALSA: hda - Add fixup for Dell Latitidue E6540
ALSA: timer: Fix double unlink of active_list
ALSA: timer: Fix race among timer ioctls
ALSA: hda - fix the headset mic detection problem for a Dell laptop
ALSA: timer: Harden slave timer list handling
ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices
ALSA: hda - Fix white noise on Dell Latitude E5550
ALSA: seq: Fix race at timer setup and close
ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnect
ALSA: seq: Fix missing NULL check at remove_events ioctl
ALSA: hda - Fixup inverted internal mic for Lenovo E50-80
ALSA: usb: Add native DSD support for Oppo HA-1
x86/mm: Improve switch_mm() barrier comments
x86/mm: Add barriers and document switch_mm()-vs-flush synchronization
x86/boot: Double BOOT_HEAP_SIZE to 64KB
x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[]
kvm: x86: Fix vmwrite to SECONDARY_VM_EXEC_CONTROL
KVM: x86: correctly print #AC in traces
KVM: x86: expose MSR_TSC_AUX to userspace
x86/xen: don't reset vcpu_info on a cancelled suspend
KEYS: Fix keyring ref leak in join_session_keyring()
Conflicts:
arch/arm64/kernel/perf_event.c
drivers/scsi/sd.c
sound/core/compress_offload.c
Change-Id: I9f77fe42aaae249c24cd6e170202110ab1426878
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
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commit 25cad69f21f5532d99e2ee73c8ab6512bcab614c upstream.
Since b8b2c7d845d5, platform_drv_probe() is called for all platform
devices. If drv->probe is NULL, and dev_pm_domain_attach() fails,
platform_drv_probe() will return the error code from dev_pm_domain_attach().
This causes real_probe() to enter the "probe_failed" path and set
dev->driver to NULL. Before b8b2c7d845d5, real_probe() would assume
success if both dev->bus->probe and drv->probe were missing. As a result,
a device and driver could be "bound" together just by matching their names;
this doesn't work any more after b8b2c7d845d5.
This may cause problems later for certain usage of platform_driver_register()
and platform_device_register_simple(). I observed a panic while loading
the tpm_tis driver with parameter "force=1" (i.e. registering tpm_tis as
a platform driver), because tpm_tis_init's assumption that the device
returned by platform_device_register_simple() was bound didn't hold any more
(tpmm_chip_alloc() dereferences chip->pdev->driver, causing panic).
This patch restores the previous (4.3.0 and earlier) behavior of
platform_drv_probe() in the case when the associated platform driver has
no "probe" function.
Fixes: b8b2c7d845d5 ("base/platform: assert that dev_pm_domain callbacks are called unconditionally")
Signed-off-by: Martin Wilck <Martin.Wilck@ts.fujitsu.com>
Cc: Martin Fuzzey <mfuzzey@parkeon.com>
Acked-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Regcache sync can call multi reg write to sync to hardware
using regmap_raw_multi_reg_write API. Provide access to
regmap_raw_multi_reg_write API to call from regcache sync.
Change-Id: I2240cd090e7485efb6dd82fd2dd8f8b1fc8a0d85
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
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Add soundwire bus support to regmap. This change enables
codec drivers using soundwire hardware interface to use
regmap interface for register read/write functionality.
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
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Add per-cpu tunable to set the extra cost to use a CPU that is idle.
Add the same for a cluster.
Change-Id: I4aa53f3c42c963df7abc7480980f747f0413d389
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
[joonwoop@codeaurora.org: omitted changes for qhmp*.[c,h] stripped out
CONFIG_SCHED_QHMP in drivers/base/cpu.c and include/linux/sched.h]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
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For the fair sched class, update the select_best_cpu() policy to do
power based placement. The hope is to minimize the voltage at which
the CPU runs.
While RT tasks already do power based placement, their placement
preference has to now take into account the power cost of all tasks
on a given CPU. Also remove the check for sched_boost since
sched_boost no longer intends to elevate all tasks to the highest
capacity cluster.
Change-Id: Ic6a7625c97d567254d93b94cec3174a91727cb87
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
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Remove the global sysctl_sched_prefer_idle flag and replace it with a
per-cpu prefer_idle flag. The per-cpu flag is expected to same for all
cpus in a cluster. It thus provides convenient means to disable
packing in one cluster while allowing packing in another cluster.
Change-Id: Ie4cc73bb1a55b4eac5697be38e558546161faca1
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
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Add another dimension for task packing based on frequency. This patch
adds a per-cpu tunable, rq->mostly_idle_freq, which when set will
result in tasks being packed on a single cpu in cluster as long as
cluster frequency is less than set threshold.
Change-Id: I318e9af6c8788ddf5dfcda407d621449ea5343c0
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
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sched_mostly_idle_load and sched_mostly_idle_nr_run knobs help pack
tasks on cpus to some extent. In some cases, it may be desirable to
have different packing limits for different cpus. For example, pack to
a higher limit on high-performance cpus compared to power-efficient
cpus.
This patch removes the global mostly_idle tunables and makes them
per-cpu, thus letting task packing behavior to be controlled in a
fine-grained manner.
Change-Id: Ifc254cda34b928eae9d6c342ce4c0f64e531e6c2
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
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A check that the intermediate firmware actually contains data
is performed before returning from request_firmware. Perform
this check only if we're actually using the intermediate
buffer.
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
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Add an additional path, /firmware/image to the list of fw paths
that request_firmware looks into for the firmware images.
Change-Id: I4b9164f222bf0a8546072de97838bf9d49dd8252
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
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Currently, when _request_firmware() fails to find the firmware
from the default /lib location, a couple of error messages are
printed denoting the same. Change the print level for these
messages from dev_warn to dev_dbg as it is fairly common to
have the user-space helper loading the firmware for us.
Change-Id: I5e06b3785f58e85eda45d32130b9acbc75cd2c0a
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>
[vmulukut: adjusted for upstream changes]
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
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Don't use the fw pointer before performing the null
check on it.
Change-Id: I303f71681647e2acb0b7e340b8f8580436cfb19d
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
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Some implementations may need to know the size of a
region allocated by map_fw_mem in the context of the
unmap_fw_mem callback. Add this as an argument to the
callback signature.
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
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Some callers of request_firmware_direct may need additional
context to be able to map firmware memory. Allow private data
to be passed in with request_firmware_direct, and send this
data along with the [unmap|map]_fw_mem callbacks.
Change-Id: I05a15eb46cc663a4476b784e30e80182a28e10c3
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
[joshc: dropped PIL portions, fixed trivial conflict in firmware.h due
to API rename]
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
[vmulukut: adjusted for upstream merge conflicts]
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
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On devices with low memory, using request_firmware on rather
large firmware images results in a memory usage penalty that
might be unaffordable. Introduce a new API that allows the
firmware image to be directly loaded to a destination address
without using any intermediate buffer.
Change-Id: I51b55dd9044ea669e2126a3f908028850bf76325
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
[joshc: renamed request_firmware_direct to request_firmware_into_buf,
avoiding namespace conflict]
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
[vmulukut: upstream merge conflict fixups]
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
[dkeitel: upstream merge conflict fixups]
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
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Some low memory systems with complex peripherals cannot
afford to have the relatively large firmware images taking
up valuable memory during suspend and resume. Change the
internal implementation of firmware_class to disallow
caching based on a configurable option. In the near future,
variants of request_firmware will take advantage of this
configurability.
Change-Id: I44be7ce3b308b642fb018086def99fcb800a1109
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
[joshc: reworked to use opt_flags instead of 'nocache' bool in fw_desc]
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
[vmulukut: adjusted for upstream additions to opt_flags]
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
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Introduce a firmware descriptor structure that makes it
easier to pass around various configuration options in the
internal implementation of firmware_class.
Change-Id: I5c1da222bccd568fabb26da5baccaa4035331efd
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
[joshc: reworked to make use of upstream's opt_flags member]
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
[vmulukut: adjusted for upstream changes to opt_flags]
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
[dkeitel: resolved merge conflicts]
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
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Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
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For some use cases, it is not known beforehand, how much
removed (carve-out) region size must be reserved. Hence
the reserved region size might need to be adjusted to
support varying use cases. In such cases maintaining
different device tree configurations to support varying
carve-out region size is difficult.
Introduce an optional device tree property, to
reserved-memory, "no-map-fixup" which works in tandem with
"removed-dma-pool" compatibility that tries to shrink and
adjust the removed area on very first successful allocation.
At end of which it returns the additional (unused) pages
from the region back to the system.
Point to note is this that this adjustment is done on very
first allocation and thereafter the region size is big
enough only to support maximum of first allocation request
size. This fixup is attempted only once upon first
allocation and never after that. Clients can allocate and
free from this region as any other dma region.
As the description suggests this type of region is specific
to certain special needs and is not to be used for common
use cases.
Change-Id: I31f49d6bd957814bc2ef3a94910425b820ccc739
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>
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Using memset generates unaligned access exception for
device type memory on armv8, hence use memset_io for
ioremap region.
Change-Id: I26c82d4bed20f1c163953680aa200c95842d3f21
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>
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removed_region->base should be phy_addr_t type as it
directly holds physical memory address. Fix it.
Change-Id: I80d49d209cf0f319b7a468697387d23e6bcb1b98
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>
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Commit 54329ac (common: dma-mapping: introduce common remapping functions)
factored out common code for remapping arrays of pages. The code before
the refactor relied on setting area->pages with the array of mapped
pages for easy access later. The refactor dropped this, breaking
parts of the ARM DMA API. Fix this by setting the page array in the same
place.
Change-Id: Ie4d085132f350db29eb2aca67156c25b5e842903
Reported-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
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Large allocations can result in the dma_common_contiguous_remap
call not being able to succeed because it can't find enough
contiguous memory to setup the mapping.
Make dma_common_contiguous_remap more robust by using vmalloc
as a fallback.
Change-Id: I12ca710b4c24f4ef24bc33a0d1d4922196fb7492
Signed-off-by: Liam Mark <lmark@codeaurora.org>
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Align size first and then find required number of bits and
order out of it.
Change-Id: I9b12fb45e5c1ff79e24fe7584cd23923b1a88c87
Signed-off-by: Shiraz Hashim <shashim@codeaurora.org>
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The current DMA coherent pool assumes that there is a kernel
mapping at all times for hte entire pool. This may not be
what we want for the entire times. Add the dma_removed ops to
support this use case.
Change-Id: Ie4f1e9bdf57b79699fa8fa7e7a6087e6d88ebbfa
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
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After getting an allocation from dma_alloc_coherent, there
may be cases where it is neccessary to remap the handle
into the CPU's address space (e.g. no CPU side mapping was
requested at allocation time but now one is needed). Add
APIs to bring a handle into the CPU address space again.
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
[imaund@codeaurora.org: resolved context conflicts and added support
for remap 'no_warn' argument]
Signed-off-by: Ian Maund <imaund@codeaurora.org>
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Drivers that are registered at an initcall level may have to
wait until late_init before the probe deferral mechanism can
retry their probe functions. It is possible that their
dependencies were resolved much earlier, in some cases even
before the next initcall level. Invoke one probe retry cycle
at every _sync initcall level, allowing these drivers to be
probed earlier.
A real world example of how this change helps follows. On the
MSM8974, there are 3 devices that need to be probed in order
for the display driver to be able to probe and bring up a
display panel. These are the gdsc_mdss (a regulator device), the
mmsscc-dsi device (a display clock controller), and the
dsipllcc device (a PLL controller). Here is a kernel log that
shows these devices probing in the wrong order:
[0.503253] mmsscc-dsi fd8c0000.qcom,mmsscc-dsi: Failed to get pixel source. -- [1]
[0.505210] dsipllcc fd8c0000.qcom,dsipllcc: Failed to get MDSS GDSC -- [2]
[0.523264] gdsc_mdss: no parameters -- [3]
Only gdsc_mdss successfully probed at 0.52 seconds. Now without
_this_ change, the current probe deferral mechanism results in
the devices probing at or after late_init:
[9.196006] dsipllcc fd8c0000.qcom,dsipllcc: Registered DSI PLL clocks. -- [2]
[9.357440] mmsscc-dsi fd8c0000.qcom,mmsscc-dsi: Registered MMSSCC DSI clocks. -- [1]
Thus the display can only be brought up after 9.35 seconds. However,
by allowing a probe retry after each initcall level, this number
reduces drastically:
[0.608252] dsipllcc fd8c0000.qcom,dsipllcc: Registered DSI PLL clocks. -- [2]
[0.613758] mmsscc-dsi fd8c0000.qcom,mmsscc-dsi: Registered MMSSCC DSI clocks.-- [1]
Thus the display can be brought up just after 0.61 seconds.
Change-Id: I83d8ac89e591e89e27934c0402449437b61b2124
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
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QoS add requests uses a handle to the priority list that is used
internally to save the request, but this does not extend well. Also,
dev_pm_qos structure definition seems to use a list object directly.
The 'derivative' relationship seems to be broken.
Use pm_qos_request objects instead of passing around the protected
priority list object.
Change-Id: Ie4c9c22dd4ea13265fe01f080ba68cf77d9d484d
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>
[mattw@codeaurora.org: resolve context conflicts and extend
struct modifications to additional affected users]
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
Conflicts:
include/linux/pm_qos.h
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Being able to write to spmi registers via userspace is required
for quick debug and development. Enable it.
The regmap framework uses dev_name to create debugfs dir names.
So update the spmi devices to have proper names.
Change-Id: I8a5da203b212df9a7f1410e3fcf6ee7b429856b6
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
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Check if the len is not greater than maximum to prevent buffer overflow.
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Change-Id: I575b0a72bb5448b68353408d71fa8b83420c9088
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There is a possibility that a wakeup source event is received after
the device prepares to suspend which might cause the suspend to abort.
This patch adds the functionality of reporting the last active wakeup
source which is currently not active but caused the suspend to abort reason
via the /sys/kernel/power/last_wakeup_reason file.
Change-Id: I1760d462f497b33e425f5565cb6cff5973932ec3
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
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Extends the last_resume_reason to log suspend abort reason. The abort
reasons will have "Abort:" appended at the start to distinguish itself
from the resume reason.
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Change-Id: I3207f1844e3d87c706dfc298fb10e1c648814c5f
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Rather than hard-lock the kernel, dump the suspend thread stack and
BUG() when a driver takes too long to suspend. The timeout is set
to 12 seconds to be longer than the usbhid 10 second timeout.
Exclude from the watchdog the time spent waiting for children that
are resumed asynchronously and time every device, whether or not they
resumed synchronously.
Change-Id: Ifd211c06b104860c2fee6eecfe0d61774aa4508a
Original-author: San Mehat <san@google.com>
Signed-off-by: Benoit Goby <benoit@android.com>
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* powercap:
powercap / RAPL: fix BIOS lock check
* pm-cpufreq:
cpufreq: intel_pstate: Minor cleanup for FRAC_BITS
cpufreq: tegra: add regulator dependency for T124
* pm-domains:
PM / Domains: Allow runtime PM callbacks to be re-used during system PM
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A runtime PM centric subsystem/driver may typically use the runtime PM
helpers, pm_runtime_force_suspend|resume() in the system PM path. This
means the genpd's runtime PM callbacks might be invoked even when runtime
PM has been disabled for the device.
To properly cope with these and similar scenarios when these helper
functions are used, change genpd to skip validating and measuring the
device PM QOS latency.
This is needed because otherwise genpd may prevent the device to be put
into low power state. If this occurs during system PM, it causes the
sequence to be aborted as a device's system PM callback returns -EBUSY.
Fixes: ba2bbfbf6307 (PM / Domains: Remove intermediate states from the power off sequence)
Reported-by: Cao Minh Hiep <cm-hiep@jinso.co.jp>
Reported-by: Harunaga <nx-truong@jinso.co.jp>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: 4.3+ <stable@vger.kernel.org> # 4.3+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Commit bdee237c0343 ("x86: mm: Use 2GB memory block size on large-memory
x86-64 systems") and 982792c782ef ("x86, mm: probe memory block size for
generic x86 64bit") introduced large block sizes for x86. This made it
possible to have multiple sections per memory block where previously,
there was a only every one section per block.
Since blocks consist of contiguous ranges of section, there can be holes
in the blocks where sections are not present. If one attempts to
offline such a block, a crash occurs since the code is not designed to
deal with this.
This patch is a quick fix to gaurd against the crash by not allowing
blocks with non-present sections to be offlined.
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=107781
Signed-off-by: Seth Jennings <sjennings@variantweb.net>
Reported-by: Andrew Banman <abanman@sgi.com>
Cc: Daniel J Blueman <daniel@numascale.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Greg KH <greg@kroah.com>
Cc: Russ Anderson <rja@sgi.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* pm-domains:
PM / Domains: Fix bad of_node_put() in failure paths of genpd_dev_pm_attach()
PM / Domains: Validate cases of a non-bound driver in genpd governor
* pm-cpufreq:
cpufreq: use last policy after online for drivers with ->setpolicy
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It looks like these meant to be unreffing the
of_parse_phandle_with_args() node, since the error paths above it
don't do of_node_put. That function returns a new ref in pd_args.np,
though, not a new ref on dev->of_node. Also, it would have leaked the
ref in the success case.
Fixes "ERROR: Bad of_node_put()" on bcm2835 in the -EPROBE_DEFER case.
Fixes: aa42240ab254 (PM / Domains: Add generic OF-based PM domain look-up)
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Cc: 3.18+ <stable@vger.kernel.org> # 3.18+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Recently genpd removed the requirement of a having a driver bound for its
attached devices to allow genpd to power off. That change should also have
removed a corresponding validation in the governor, let's correct that.
Fixes: 298cd0f08801 (PM / Domains: Remove dev->driver check for runtime)
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* pm-sleep:
PM / wakeirq: check that wake IRQ is valid before accepting it
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Check that IRQ number passed to dev_pm_set_wake_irq() and
dev_pm_set_dedicated_wake_irq() is valid (not negative) before
accepting it.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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