Backlight display can be a thermal cooling device which can help reduce
the temperature by reducing the screen brightness. To facilitate this
register the backlight as a cooling device with thermal framework.
In order to register a backlight driver as a cooling device the
devicetree should have the property #cooling-cells defined. backlight
framework looks for this property to register the cooling device.
The backlight framework stores the user brightness request for the
backlight and caps the request based on thermal recommendation before
sending it to the driver. Also, when there is a new cap request the
current brightness will be re-evaluated.
Change-Id: I1405ddd6c3cfff99cd84842d3773851168dcfe78
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
* refs/heads/tmp-73aa1c8:
Revert "drm/msm: dpu: Allow planes to extend past active display"
Revert "drm/msm/disp/dpu: Use proper define for drm_encoder_init() 'encoder_type'"
Linux 4.19.3
Revert "ACPICA: AML interpreter: add region addresses in global list during initialization"
CONFIG_XEN_PV breaks xen_create_contiguous_region on ARM
drm/i915: Fix hpd handling for pins with two encoders
drm/i915: Fix NULL deref when re-enabling HPD IRQs on systems with MST
drm/i915: Fix possible race in intel_dp_add_mst_connector()
drm/i915/execlists: Force write serialisation into context image vs execution
drm/i915/ringbuffer: Delay after EMIT_INVALIDATE for gen4/gen5
drm/i915: Mark pin flags as u64
drm/i915: Don't oops during modeset shutdown after lpe audio deinit
drm/i915: Compare user's 64b GTT offset even on 32b
drm/i915: Fix ilk+ watermarks when disabling pipes
drm/i915: Fix error handling for the NV12 fb dimensions check
drm/i915: Mark up GTT sizes as u64
drm/i915/hdmi: Add HDMI 2.0 audio clock recovery N values
drm/i915/icl: Fix the macros for DFLEXDPMLE register bits
drm/i915/dp: Restrict link retrain workaround to external monitors
drm/i915/dp: Fix link retraining comment in intel_dp_long_pulse()
drm/i915: Large page offsets for pread/pwrite
drm/i915: Skip vcpi allocation for MSTB ports that are gone
drm/i915: Don't unset intel_connector->mst_port
drm/i915: Restore vblank interrupts earlier
drm/i915: Use the correct crtc when sanitizing plane mapping
drm/i915/dp: Link train Fallback on eDP only if fallback link BW can fit panel's native mode
drm: panel-orientation-quirks: Add quirk for Acer One 10 (S1003)
drm/dp_mst: Check if primary mstb is null
drm/etnaviv: fix bogus fence complete check in timeout handler
drm/amd/powerplay: Enable/Disable NBPSTATE on On/OFF of UVD
drm/nouveau: Fix nv50_mstc->best_encoder()
drm/nouveau: Check backlight IDs are >= 0, not > 0
drm/amdgpu: Suppress keypresses from ACPI_VIDEO events
drm/amdgpu: add missing CHIP_HAINAN in amdgpu_ucode_get_load_type
drm/amdgpu: Fix typo in amdgpu_vmid_mgr_init
drm/rockchip: Allow driver to be shutdown on reboot/kexec
scripts/spdxcheck.py: make python3 compliant
mm: don't reclaim inodes with many attached pages
efi/arm/libstub: Pack FDT after populating it
mm/swapfile.c: use kvzalloc for swap_info_struct allocation
hugetlbfs: fix kernel BUG at fs/hugetlbfs/inode.c:444!
lib/ubsan.c: don't mark __ubsan_handle_builtin_unreachable as noreturn
crypto: user - fix leaking uninitialized memory to userspace
libata: blacklist SAMSUNG MZ7TD256HAFV-000L9 SSD
gfs2: Fix metadata read-ahead during truncate (2)
gfs2: Put bitmap buffers in put_super
selinux: check length properly in SCTP bind hook
fuse: fix possibly missed wake-up after abort
fuse: fix leaked notify reply
fuse: fix use-after-free in fuse_direct_IO()
rtc: hctosys: Add missing range error reporting
nfsd: COPY and CLONE operations require the saved filehandle to be set
NFSv4: Don't exit the state manager without clearing NFS4CLNT_MANAGER_RUNNING
sunrpc: correct the computation for page_ptr when truncating
kdb: print real address of pointers instead of hashed addresses
kdb: use correct pointer when 'btc' calls 'btt'
ARM: cpuidle: Don't register the driver when back-end init returns -ENXIO
uapi: fix linux/kfd_ioctl.h userspace compilation errors
mnt: fix __detach_mounts infinite loop
mount: Prevent MNT_DETACH from disconnecting locked mounts
mount: Don't allow copying MNT_UNBINDABLE|MNT_LOCKED mounts
mount: Retest MNT_LOCKED in do_umount
ext4: fix buffer leak in __ext4_read_dirblock() on error path
ext4: fix buffer leak in ext4_expand_extra_isize_ea() on error path
ext4: fix buffer leak in ext4_xattr_move_to_block() on error path
ext4: release bs.bh before re-using in ext4_xattr_block_find()
ext4: fix buffer leak in ext4_xattr_get_block() on error path
ext4: fix possible leak of s_journal_flag_rwsem in error path
ext4: fix possible leak of sbi->s_group_desc_leak in error path
ext4: avoid possible double brelse() in add_new_gdb() on error path
ext4: fix missing cleanup if ext4_alloc_flex_bg_array() fails while resizing
ext4: avoid buffer leak in ext4_orphan_add() after prior errors
ext4: avoid buffer leak on shutdown in ext4_mark_iloc_dirty()
ext4: fix possible inode leak in the retry loop of ext4_resize_fs()
ext4: missing !bh check in ext4_xattr_inode_write()
ext4: avoid potential extra brelse in setup_new_flex_group_blocks()
ext4: add missing brelse() add_new_gdb_meta_bg()'s error path
ext4: add missing brelse() in set_flexbg_block_bitmap()'s error path
ext4: add missing brelse() update_backups()'s error path
clockevents/drivers/i8253: Add support for PIT shutdown quirk
btrfs: tree-checker: Fix misleading group system information
Btrfs: fix data corruption due to cloning of eof block
Btrfs: fix infinite loop on inode eviction after deduplication of eof block
Btrfs: fix cur_offset in the error case for nocow
Btrfs: fix missing data checksums after a ranged fsync (msync)
btrfs: fix pinned underflow after transaction aborted
watchdog/core: Add missing prototypes for weak functions
arch/alpha, termios: implement BOTHER, IBSHIFT and termios2
termios, tty/tty_baudrate.c: fix buffer overrun
x86/hyper-v: Enable PIT shutdown quirk
x86/cpu/vmware: Do not trace vmware_sched_clock()
of, numa: Validate some distance map rules
perf intel-pt: Insert callchain context into synthesized callchains
perf intel-pt/bts: Calculate cpumode for synthesized samples
perf callchain: Honour the ordering of PERF_CONTEXT_{USER,KERNEL,etc}
perf stat: Handle different PMU names with common prefix
perf cs-etm: Correct CPU mode for samples
hwmon: (core) Fix double-free in __hwmon_device_register()
mtd: docg3: don't set conflicting BCH_CONST_PARAMS option
mtd: nand: Fix nanddev_neraseblocks()
mtd: spi-nor: cadence-quadspi: Return error code in cqspi_direct_read_execute()
bonding/802.3ad: fix link_failure_count tracking
ARM: 8809/1: proc-v7: fix Thumb annotation of cpu_v7_hvc_switch_mm
netfilter: conntrack: fix calculation of next bucket number in early_drop
memory_hotplug: cond_resched in __remove_pages
mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings
ocfs2: free up write context when direct IO failed
ocfs2: fix a misuse a of brelse after failing ocfs2_check_dir_entry
soc: ti: QMSS: Fix usage of irq_set_affinity_hint
Revert "powerpc/8xx: Use L1 entry APG to handle _PAGE_ACCESSED for CONFIG_SWAP"
SCSI: fix queue cleanup race before queue initialization is done
scsi: qla2xxx: Initialize port speed to avoid setting lower speed
vhost/scsi: truncate T10 PI iov_iter to prot_bytes
crypto: hisilicon - Fix reference after free of memories on error path
crypto: hisilicon - Fix NULL dereference for same dst and src
reset: hisilicon: fix potential NULL pointer dereference
acpi, nfit: Fix ARS overflow continuation
acpi/nfit, x86/mce: Validate a MCE's address before using it
acpi/nfit, x86/mce: Handle only uncorrectable machine checks
mach64: fix image corruption due to reading accelerator registers
mach64: fix display corruption on big endian machines
thermal: core: Fix use-after-free in thermal_cooling_device_destroy_sysfs
Revert "ceph: fix dentry leak in splice_dentry()"
libceph: bump CEPH_MSG_MAX_DATA_LEN
clk: rockchip: Fix static checker warning in rockchip_ddrclk_get_parent call
clk: rockchip: fix wrong mmc sample phase shift for rk3328
clk: sunxi-ng: h6: fix bus clocks' divider position
clk: at91: Fix division by zero in PLL recalc_rate()
clk: s2mps11: Fix matching when built as module and DT node contains compatible
um: Drop own definition of PTRACE_SYSEMU/_SINGLESTEP
xtensa: fix boot parameters address translation
xtensa: make sure bFLT stack is 16 byte aligned
xtensa: add NOTES section to the linker script
MIPS: Loongson-3: Fix BRIDGE irq delivery problem
MIPS: Loongson-3: Fix CPU UART irq delivery problem
zram: close udev startup race condition as default groups
clk: meson: axg: mark fdiv2 and fdiv3 as critical
clk: meson-gxbb: set fclk_div3 as CLK_IS_CRITICAL
arm64: dts: stratix10: fix multicast filtering
arm64: dts: stratix10: Support Ethernet Jumbo frame
drm/msm: fix OF child-node lookup
fuse: set FR_SENT while locked
fuse: fix blocked_waitq wakeup
fuse: Fix use-after-free in fuse_dev_do_write()
fuse: Fix use-after-free in fuse_dev_do_read()
vfs: fix FIGETBSZ ioctl on an overlayfs file
scsi: qla2xxx: Fix driver hang when FC-NVMe LUNs are configured
scsi: qla2xxx: Fix duplicate switch database entries
scsi: qla2xxx: Fix NVMe Target discovery
scsi: qla2xxx: Fix NVMe session hang on unload
scsi: qla2xxx: Fix for double free of SRB structure
scsi: qla2xxx: Fix re-using LoopID when handle is in use
scsi: qla2xxx: Reject bsg request if chip is down.
scsi: qla2xxx: shutdown chip if reset fail
scsi: qla2xxx: Fix early srb free on abort
scsi: qla2xxx: Remove stale debug trace message from tcm_qla2xxx
scsi: qla2xxx: Fix process response queue for ISP26XX and above
scsi: qla2xxx: Fix incorrect port speed being set for FC adapters
serial: sh-sci: Fix could not remove dev_attr_rx_fifo_timeout
ovl: automatically enable redirect_dir on metacopy=on
ovl: check whiteout in ovl_create_over_whiteout()
ovl: fix recursive oi->lock in ovl_link()
ovl: fix error handling in ovl_verify_set_fh()
cdrom: fix improper type cast, which can leat to information leak.
media: ov5640: fix restore of last mode set
drm/amdgpu: fix integer overflow test in amdgpu_bo_list_create()
9p: clear dangling pointers in p9stat_free
media: ov5640: fix mode change regression
ARM: dts: imx6ull: keep IMX6UL_ prefix for signals on both i.MX6UL and i.MX6ULL
udf: Prevent write-unsupported filesystem to be remounted read-write
9p locks: fix glock.client_id leak in do_lock
staging: most: video: fix registration of an empty comp core_component
drm/amdgpu: Fix SDMA TO after GPU reset v3
drm: rcar-du: Update Gen3 output limitations
staging:iio:ad7606: fix voltage scales
powerpc/selftests: Wait all threads to join
media: tvp5150: fix width alignment during set_selection()
sc16is7xx: Fix for multi-channel stall
serial: 8250_of: Fix for lack of interrupt support
staging: erofs: fix a missing endian conversion
MIPS/PCI: Call pcie_bus_configure_settings() to set MPS/MRRS
powerpc/memtrace: Remove memory in chunks
powerpc/boot: Ensure _zimage_start is a weak symbol
MIPS: kexec: Mark CPU offline before disabling local IRQ
media: coda: don't overwrite h.264 profile_idc on decoder instance
media: pci: cx23885: handle adding to list failure
drm/hisilicon: hibmc: Do not carry error code in HiBMC framebuffer pointer
drm/amd/display: fix gamma not being applied
drm/amd/display: Raise dispclk value for dce120 by 15%
drm/omap: fix memory barrier bug in DMM driver
powerpc/mm: Don't report hugepage tables as memory leaks when using kmemleak
drm/msm: dpu: Allow planes to extend past active display
drm/msm/disp/dpu: Use proper define for drm_encoder_init() 'encoder_type'
drm/msm/gpu: fix parameters in function msm_gpu_crashstate_capture
powerpc/nohash: fix undefined behaviour when testing page size support
ARM: imx_v6_v7_defconfig: Select CONFIG_TMPFS_POSIX_ACL
drm/amdgpu/powerplay: fix missing break in switch statements
drm/nouveau/secboot/acr: fix memory leak
tracing/kprobes: Check the probe on unloaded module correctly
tty: check name length in tty_find_polling_driver()
powerpc/eeh: Fix possible null deref in eeh_dump_dev_log()
powerpc/Makefile: Fix PPC_BOOK3S_64 ASFLAGS
Input: wm97xx-ts - fix exit path
drm/amd/display: fix bug of accessing invalid memory
powerpc/mm: fix always true/false warning in slice.c
powerpc/mm: Fix page table dump to work on Radix
powerpc/64/module: REL32 relocation range check
powerpc/traps: restore recoverability of machine_check interrupts
Change-Id: Id971c3ddeb610be8aee4ff531ec3fb20ad0db58d
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
* refs/heads/tmp-7950eb3:
Revert "scsi: ufs: Schedule clk gating work on correct queue"
Linux 4.19.2
MD: fix invalid stored role for a disk - try2
vga_switcheroo: Fix missing gpu_bound call at audio client registration
bpf: wait for running BPF programs when updating map-in-map
userns: also map extents in the reverse map to kernel IDs
vt: fix broken display when running aptitude
net: sched: Remove TCA_OPTIONS from policy
Btrfs: fix use-after-free when dumping free space
Btrfs: fix use-after-free during inode eviction
btrfs: move the dio_sem higher up the callchain
btrfs: don't run delayed_iputs in commit
btrfs: fix insert_reserved error handling
btrfs: only free reserved extent if we didn't insert it
btrfs: don't use ctl->free_space for max_extent_size
btrfs: set max_extent_size properly
btrfs: reset max_extent_size properly
Btrfs: fix deadlock when writing out free space caches
Btrfs: fix assertion on fsync of regular file when using no-holes feature
Btrfs: fix null pointer dereference on compressed write path error
btrfs: qgroup: Dirty all qgroups before rescan
Btrfs: fix wrong dentries after fsync of file that got its parent replaced
Btrfs: fix warning when replaying log after fsync of a tmpfile
btrfs: make sure we create all new block groups
btrfs: reset max_extent_size on clear in a bitmap
btrfs: protect space cache inode alloc with GFP_NOFS
btrfs: release metadata before running delayed refs
Btrfs: don't clean dirty pages during buffered writes
btrfs: wait on caching when putting the bg cache
btrfs: keep trim from interfering with transaction commits
btrfs: don't attempt to trim devices that don't support it
btrfs: iterate all devices during trim, instead of fs_devices::alloc_list
btrfs: Ensure btrfs_trim_fs can trim the whole filesystem
btrfs: Enhance btrfs_trim_fs function to handle error better
btrfs: fix error handling in btrfs_dev_replace_start
btrfs: fix error handling in free_log_tree
btrfs: locking: Add extra check in btrfs_init_new_buffer() to avoid deadlock
btrfs: Handle owner mismatch gracefully when walking up tree
btrfs: qgroup: Avoid calling qgroup functions if qgroup is not enabled
tracing: Return -ENOENT if there is no target synthetic event
selftests/powerpc: Fix ptrace tm failure
selftests/ftrace: Fix synthetic event test to delete event correctly
soc/tegra: pmc: Fix child-node lookup
soc: qcom: rmtfs-mem: Validate that scm is available
arm64: dts: stratix10: Correct System Manager register size
ARM: dts: socfpga: Fix SDRAM node address for Arria10
Cramfs: fix abad comparison when wrap-arounds occur
rpmsg: smd: fix memory leak on channel create
arm64: lse: remove -fcall-used-x0 flag
media: hdmi.h: rename ADOBE_RGB to OPRGB and ADOBE_YCC to OPYCC
media: replace ADOBERGB by OPRGB
media: media colorspaces*.rst: rename AdobeRGB to opRGB
drm/mediatek: fix OF sibling-node lookup
media: adv7842: when the EDID is cleared, unconfigure CEC as well
media: adv7604: when the EDID is cleared, unconfigure CEC as well
media: em28xx: fix handler for vidioc_s_input()
media: em28xx: make v4l2-compliance happier by starting sequence on zero
media: em28xx: fix input name for Terratec AV 350
media: tvp5150: avoid going past array on v4l2_querymenu()
media: em28xx: use a default format if TRY_FMT fails
media: cec: forgot to cancel delayed work
media: cec: fix the Signal Free Time calculation
media: cec: add new tx/rx status bits to detect aborts/timeouts
xen-blkfront: fix kernel panic with negotiate_mq error path
xen: remove size limit of privcmd-buf mapping interface
xen: fix xen_qlock_wait()
media: cec: integrate cec_validate_phys_addr() in cec-api.c
media: cec: make cec_get_edid_spa_location() an inline function
remoteproc: qcom: q6v5: Propagate EPROBE_DEFER
kgdboc: Passing ekgdboc to command line causes panic
Revert "media: dvbsky: use just one mutex for serializing device R/W ops"
media: v4l2-tpg: fix kernel oops when enabling HFLIP and OSD
net: bcmgenet: fix OF child-node lookup
TC: Set DMA masks for devices
iommu/arm-smmu: Ensure that page-table updates are visible before TLBI
ocxl: Fix access to the AFU Descriptor Data
power: supply: twl4030-charger: fix OF sibling-node lookup
rtc: cmos: Remove the `use_acpi_alarm' module parameter for !ACPI
rtc: cmos: Fix non-ACPI undefined reference to `hpet_rtc_interrupt'
rtc: ds1307: fix ds1339 wakealarm support
MIPS: OCTEON: fix out of bounds array access on CN68XX
powerpc/64s/hash: Do not use PPC_INVALIDATE_ERAT on CPUs before POWER9
powerpc/tm: Fix HFSCR bit for no suspend case
powerpc/msi: Fix compile error on mpc83xx
powerpc64/module elfv1: Set opd addresses after module relocation
fsnotify: Fix busy inodes during unmount
media: ov7670: make "xclk" clock optional
dm zoned: fix various dmz_get_mblock() issues
dm zoned: fix metadata block ref counting
dm ioctl: harden copy_params()'s copy_from_user() from malicious users
lockd: fix access beyond unterminated strings in prints
nfsd: Fix an Oops in free_session()
nfsd: correctly decrement odstate refcount in error path
nfs: Fix a missed page unlock after pg_doio()
NFSv4.1: Fix the r/wsize checking
NFC: nfcmrvl_uart: fix OF child-node lookup
tpm: fix response size validation in tpm_get_random()
genirq: Fix race on spurious interrupt detection
printk: Fix panic caused by passing log_buf_len to command line
smb3: on kerberos mount if server doesn't specify auth type use krb5
smb3: do not attempt cifs operation in smb3 query info error path
smb3: allow stats which track session and share reconnects to be reset
w1: omap-hdq: fix missing bus unregister at removal
iio: adc: at91: fix wrong channel number in triggered buffer mode
iio: adc: at91: fix acking DRDY irq on simple conversions
iio: adc: imx25-gcq: Fix leak of device_node in mx25_gcq_setup_cfgs()
iio: ad5064: Fix regulator handling
kbuild: fix kernel/bounds.c 'W=1' warning
KVM: arm64: Fix caching of host MDCR_EL2 value
KVM: arm/arm64: Ensure only THP is candidate for adjustment
mm/hmm: fix race between hmm_mirror_unregister() and mmu_notifier callback
mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly
hugetlbfs: dirty pages as they are added to pagecache
ima: open a new file instance if no read permissions
ima: fix showing large 'violations' or 'runtime_measurements_count'
userfaultfd: disable irqs when taking the waitqueue lock
mm: /proc/pid/smaps_rollup: fix NULL pointer deref in smaps_pte_range()
crypto: speck - remove Speck
crypto: aegis/generic - fix for big endian systems
crypto: morus/generic - fix for big endian systems
crypto: aesni - don't use GFP_ATOMIC allocation if the request doesn't cross a page in gcm
crypto: tcrypt - fix ghash-generic speed test
crypto: lrw - Fix out-of bounds access on counter overflow
signal: Guard against negative signal numbers in copy_siginfo_from_user32
signal/GenWQE: Fix sending of SIGKILL
PCI: Add Device IDs for Intel GPU "spurious interrupt" quirk
PCI/ASPM: Fix link_state teardown on device removal
ARM: dts: dra7: Fix up unaligned access setting for PCIe EP
EDAC, skx_edac: Fix logical channel intermediate decoding
EDAC, {i7core,sb,skx}_edac: Fix uncorrected error counting
EDAC, amd64: Add Family 17h, models 10h-2fh support
HID: hiddev: fix potential Spectre v1
HID: wacom: Work around HID descriptor bug in DTK-2451 and DTH-2452
selinux: fix mounting of cgroup2 under older policies
ext4: fix use-after-free race in ext4_remount()'s error path
ext4: propagate error from dquot_initialize() in EXT4_IOC_FSSETXATTR
ext4: fix setattr project check in fssetxattr ioctl
ext4: initialize retries variable in ext4_da_write_inline_data_begin()
ext4: fix EXT4_IOC_SWAP_BOOT
gfs2_meta: ->mount() can get NULL dev_name
jbd2: fix use after free in jbd2_log_do_checkpoint()
IB/rxe: Revise the ib_wr_opcode enum
IB/mlx5: Fix MR cache initialization
ASoC: sta32x: set ->component pointer in private struct
ASoC: intel: skylake: Add missing break in skl_tplg_get_token()
libnvdimm, pmem: Fix badblocks population for 'raw' namespaces
libnvdimm, region: Fail badblocks listing for inactive regions
libnvdimm: Hold reference on parent while scheduling async init
scsi: target: Fix target_wait_for_sess_cmds breakage with active signals
scsi: sched/wait: Add wait_event_lock_irq_timeout for TASK_UNINTERRUPTIBLE usage
dmaengine: ppc4xx: fix off-by-one build failure
net/ipv4: defensive cipso option parsing
iwlwifi: mvm: check return value of rs_rate_from_ucode_rate()
mt76: mt76x2: fix multi-interface beacon configuration
usb: gadget: udc: renesas_usb3: Fix b-device mode for "workaround"
usb: typec: tcpm: Fix APDO PPS order checking to be based on voltage
usbip:vudc: BUG kmalloc-2048 (Not tainted): Poison overwritten
libertas: don't set URB_ZERO_PACKET on IN USB transfer
xen/pvh: don't try to unplug emulated devices
xen/pvh: increase early stack size
xen: make xen_qlock_wait() nestable
xen: fix race in xen_qlock_wait()
xen/balloon: Support xend-based toolstack
xen/blkfront: avoid NULL blkfront_info dereference on device removal
tpm: Restore functionality to xen vtpm driver.
xen-swiotlb: use actually allocated size on check physical continuous
ARM: dts: exynos: Mark 1 GHz CPU OPP as suspend OPP on Exynos5250
ARM: dts: exynos: Convert exynos5250.dtsi to opp-v2 bindings
OPP: Free OPP table properly on performance state irregularities
f2fs: fix to account IO correctly
f2fs: fix to recover cold bit of inode block during POR
f2fs: fix missing up_read
Revert "f2fs: fix to clear PG_checked flag in set_page_dirty()"
cpupower: Fix AMD Family 0x17 msr_pstate size
ALSA: hda: Check the non-cached stream buffers more explicitly
IB/rxe: fix for duplicate request processing and ack psns
dmaengine: dma-jz4780: Return error if not probed from DT
mfd: menelaus: Fix possible race condition and leak
f2fs: fix to flush all dirty inodes recovered in readonly fs
signal: Always deliver the kernel's SIGKILL and SIGSTOP to a pid namespace init
f2fs: report error if quota off error during umount
f2fs: avoid sleeping under spin_lock
scsi: lpfc: Correct race with abort on completion path
scsi: lpfc: Correct soft lockup when running mds diagnostics
uio: ensure class is registered before devices
IB/mlx5: Allow transition of DCI QP to reset
IB/ipoib: Use dev_port to expose network interface port numbers
firmware: coreboot: Unmap ioregion after device population
ASoC: AMD: Fix capture unstable in beginning for some runs
driver/dma/ioat: Call del_timer_sync() without holding prep_lock
Smack: ptrace capability use fixes
usb: chipidea: Prevent unbalanced IRQ disable
crypto: caam - fix implicit casts in endianness helpers
PCI: dwc: pci-dra7xx: Enable errata i870 for both EP and RC mode
coresight: etb10: Fix handling of perf mode
PCI/MSI: Warn and return error if driver enables MSI/MSI-X twice
f2fs: fix to recover inode's i_flags during POR
f2fs: fix to recover inode's crtime during POR
scsi: qla2xxx: Fix recursive mailbox timeout
xhci: Avoid USB autosuspend when resuming USB2 ports.
nvmem: check the return value of nvmem_add_cells()
PCI: cadence: Correct probe behaviour when failing to get PHY
MD: fix invalid stored role for a disk
ext4: fix argument checking in EXT4_IOC_MOVE_EXT
usb: gadget: udc: atmel: handle at91sam9rl PMC
usb: dwc2: fix a race with external vbus supply
usb: dwc2: fix call to vbus supply exit routine, call it unlocked
irqchip/pdc: Setup all edge interrupts as rising edge at GIC
xprtrdma: Reset credit grant properly after a disconnect
PCI / ACPI: Enable wake automatically for power managed bridges
VMCI: Resource wildcard match fixed
Drivers: hv: vmbus: Use cpumask_var_t for on-stack cpu mask
f2fs: clear PageError on the read path
tpm: suppress transmit cmd error logs when TPM 1.2 is disabled/deactivated
usb: typec: tcpm: Report back negotiated PPS voltage and current
PCI: cadence: Use AXI region 0 to signal interrupts from EP
PCI: mediatek: Fix mtk_pcie_find_port() endpoint/port matching logic
usb: host: ohci-at91: fix request of irq for optional gpio
RDMA/bnxt_re: Fix recursive lock warning in debug kernel
RDMA/bnxt_re: Avoid accessing nq->bar_reg_iomem in failure case
IB/ipoib: Clear IPCB before icmp_send
RDMA/cm: Respect returned status of cm_init_av_by_path
RDMA/core: Do not expose unsupported counters
scsi: megaraid_sas: fix a missing-check bug
KVM: nVMX: Clear reserved bits of #DB exit qualification
UAPI: ndctl: Fix g++-unsupported initialisation in headers
scsi: ufs: Schedule clk gating work on correct queue
scsi: esp_scsi: Track residual for PIO transfers
of: Add missing exports of node name compare functions
md: fix memleak for mempool
MD: Memory leak when flush bio size is zero
f2fs: fix to account IO correctly for cgroup writeback
net: stmmac: dwmac-sun8i: fix OF child-node lookup
cgroup, netclassid: add a preemption point to write_classid
cifs: fix a credits leak for compund commands
thermal: da9062/61: Prevent hardware access during system suspend
thermal: rcar_thermal: Prevent doing work after unbind
libata: Apply NOLPM quirk for SAMSUNG MZ7TD256HAFV-000L9
ath10k: schedule hardware restart if WMI command times out
wil6210: fix RX buffers release and unmap
ixgbevf: VF2VF TCP RSS
ixgbe: disallow IPsec Tx offload when in SR-IOV mode
gpio: brcmstb: allow 0 width GPIO banks
iwlwifi: mvm: fix BAR seq ctrl reporting
libertas_tf: prevent underflow in process_cmdrequest()
rsi: fix memory alignment issue in ARM32 platforms
mt76x2u: run device cleanup routine if resume fails
net: dsa: mv88e6xxx: Fix writing to a PHY page.
net: hns3: Fix for vf vlan delete failed problem
net: hns3: Fix ping exited problem when doing lp selftest
net: hns3: Preserve vlan 0 in hardware table
pinctrl: ssbi-gpio: Fix pm8xxx_pin_config_get() to be compliant
pinctrl: spmi-mpp: Fix pmic_mpp_config_get() to be compliant
perf tests: Fix record+probe_libc_inet_pton.sh without ping's debuginfo
failover: Add missing check to validate 'slave_dev' in net_failover_slave_unregister
bpf/verifier: fix verifier instability
pinctrl: qcom: spmi-mpp: Fix drive strength setting
ACPI / LPSS: Add alternative ACPI HIDs for Cherry Trail DMA controllers
spi: gpio: No MISO does not imply no RX
kprobes: Return error if we fail to reuse kprobe instead of BUG_ON()
arm64: entry: Allow handling of undefined instructions from EL1
block, bfq: correctly charge and reset entity service in all cases
net: phy: phylink: ensure the carrier is off when starting phylink
net: hns3: Set STATE_DOWN bit of hdev state when stopping net
net: hns3: Check hdev state when getting link status
brcmfmac: fix for proper support of 160MHz bandwidth
pinctrl: qcom: spmi-mpp: Fix err handling of pmic_mpp_set_mux
pinctrl: sunxi: fix 'pctrl->functions' allocation in sunxi_pinctrl_build_state
net: hns3: Fix ets validate issue
net: hns3: Add nic state check before calling netif_tx_wake_queue
x86: boot: Fix EFI stub alignment
efi/x86: Call efi_parse_options() from efi_main()
Bluetooth: hci_qca: Remove hdev dereference in qca_close().
Bluetooth: btbcm: Add entry for BCM4335C0 UART bluetooth
net: hns3: Fix for packet buffer setting bug
ice: update fw version check logic
ice: fix changing of ring descriptor size (ethtool -G)
signal: Introduce COMPAT_SIGMINSTKSZ for use in compat_sys_sigaltstack
ath10k: fix tx status flag setting for management frames
nvme: call nvme_complete_rq when nvmf_check_ready fails for mpath I/O
mtd: rawnand: atmel: Fix potential NULL pointer dereference
x86/intel_rdt: Show missing resctrl mount options
cpufreq: dt: Try freeing static OPPs only if we have added them
ACPI / processor: Fix the return value of acpi_processor_ids_walk()
ACPI / PM: LPIT: Register sysfs attributes based on FADT
ACPI/PPTT: Handle architecturally unknown cache types
wlcore: Fix BUG with clear completion on timeout
x86/olpc: Indicate that legacy PC XO-1 platform should not register RTC
iwlwifi: mvm: check for n_profiles validity in EWRD ACPI
iwlwifi: mvm: clear HW_RESTART_REQUESTED when stopping the interface
iwlwifi: pcie: avoid empty free RB queue
mtd: rawnand: denali: set SPARE_AREA_SKIP_BYTES register to 8 if unset
sdhci: acpi: add free_slot callback
mmc: sdhci-pci-o2micro: Add quirk for O2 Micro dev 0x8620 rev 0x01
bcache: Populate writeback_rate_minimum attribute
cpupower: Fix coredump on VMWare
perf strbuf: Match va_{add,copy} with va_end
perf tools: Free 'printk' string in parse_ftrace_printk()
perf tools: Cleanup trace-event-info 'tdata' leak
perf tools: Free temporary 'sys' string in read_event_files()
spi: spi-ep93xx: Use dma_data_direction for ep93xx_spi_dma_{finish,prepare}
lightnvm: pblk: fix race condition on metadata I/O
lightnvm: pblk: fix two sleep-in-atomic-context bugs
lightnvm: pblk: fix race on sysfs line state
hwmon: (pwm-fan) Set fan speed to 0 on suspend
s390/sthyi: Fix machine name validity indication
tun: Consistently configure generic netdev params via rtnetlink
nfp: devlink port split support for 1x100G CXP NIC
hv_netvsc: fix vf serial matching with pci slot info
arm64: cpufeature: ctr: Fix cpu capability check for late CPUs
swim: fix cleanup on setup error
ataflop: fix error handling during setup
netfilter: xt_nat: fix DNAT target for shifted portmap ranges
locking/lockdep: Fix debug_locks off performance problem
net: loopback: clear skb->tstamp before netif_rx()
net: socionext: Reset tx queue in ndo_stop
ARM: dts: exynos: Disable pull control for MAX8997 interrupts on Origen
x86/numa_emulation: Fix uniform-split numa emulation
x86/mm/pat: Disable preemption around __flush_tlb_all()
x86/kvm/nVMX: allow bare VMXON state migration
x86/corruption-check: Fix panic in memory_corruption_check() when boot option without value is provided
x86/xen: Fix boot loader version reported for PVH guests
x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
ALSA: hda - Fix incorrect clearance of thinkpad_acpi hooks
ALSA: ca0106: Disable IZD on SB0570 DAC to fix audio pops
ALSA: hda: Add 2 more models to the power_save blacklist
ALSA: hda - Add mic quirk for the Lenovo G50-30 (17aa:3905)
ALSA: hda/realtek - Fix the problem of the front MIC on the Lenovo M715
ALSA: hda - Fix headphone pin config for ASUS G751
ALSA: hda - Add quirk for ASUS G751 laptop
parisc: Fix exported address of os_hpmc handler
parisc: Fix map_pages() to not overwrite existing pte entries
parisc: Fix address in HPMC IVA
mailbox: PCC: handle parse error
ipmi: Fix timer race with module unload
kprobes/x86: Use preempt_enable() in optimized_callback()
acpi, nfit: Fix Address Range Scrub completion tracking
ACPICA: AML Parser: fix parse loop to correctly skip erroneous extended opcodes
ACPICA: AML interpreter: add region addresses in global list during initialization
ACPI / OSL: Use 'jiffies' as the time bassis for acpi_os_get_timer()
pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
dma-mapping: fix panic caused by passing empty cma command line argument
cpufreq: conservative: Take limits changes into account properly
block: make sure writesame bio is aligned with logical block size
block: make sure discard bio is aligned with logical block size
block: setup bounce bio_sets properly
jffs2: free jffs2_sb_info through jffs2_kill_sb()
hwmon: (pmbus) Fix page count auto-detection.
bcache: fix miss key refill->end in writeback
bcache: correct dirty data statistics
bcache: fix ioctl in flash device
bcache: trace missed reading by cache_missed
spi: bcm-qspi: fix calculation of address length
spi: bcm-qspi: switch back to reading flash using smaller chunks
spi: spi-mem: Adjust op len based on message/transfer size limitations
mtd: spi-nor: fsl-quadspi: Don't let -EINVAL on the bus
mtd: spi-nor: intel-spi: Add support for Intel Ice Lake SPI serial flash
mtd: spi-nor: fsl-quadspi: fix read error for flash size larger than 16MB
mtd: maps: gpio-addr-flash: Fix ioremapped size
mtd: rawnand: marvell: fix the IRQ handler complete() condition
gpio: mxs: Get rid of external API call
MIPS: VDSO: Reduce VDSO_RANDOMIZE_SIZE to 64MB for 64bit
bpf: fix partial copy of map_ptr when dst is scalar
Conflicts:
drivers/iommu/arm-smmu.c
Change-Id: Iff6f46fb6932b2a41a7a3df5f2a18f1eddfb9d66
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
commit c09bcc91bb94ed91f1391bffcbe294963d605732 upstream.
Reading the registers without waiting for engine idle returns
unpredictable values. These unpredictable values result in display
corruption - if atyfb_imageblit reads the content of DP_PIX_WIDTH with the
bit DP_HOST_TRIPLE_EN set (from previous invocation), the driver would
never ever clear the bit, resulting in display corruption.
We don't want to wait for idle because it would degrade performance, so
this patch modifies the driver so that it never reads accelerator
registers.
HOST_CNTL doesn't have to be read, we can just write it with
HOST_BYTE_ALIGN because no other part of the driver cares if
HOST_BYTE_ALIGN is set.
DP_PIX_WIDTH is written in the functions atyfb_copyarea and atyfb_fillrect
with the default value and in atyfb_imageblit with the value set according
to the source image data.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Ville Syrjälä <syrjala@sci.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3c6c6a7878d00a3ac997a779c5b9861ff25dfcc8 upstream.
The code for manual bit triple is not endian-clean. It builds the variable
"hostdword" using byte accesses, therefore we must read the variable with
"le32_to_cpu".
The patch also enables (hardware or software) bit triple only if the image
is monochrome (image->depth). If we want to blit full-color image, we
shouldn't use the triple code.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Ville Syrjälä <syrjala@sci.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 463659a08d7999d5461fa45b35b17686189a70ca upstream.
These names have been renamed in the CTA-861 standard due to trademark
issues. Replace them here as well so they are in sync with the standard.
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Cc: stable@vger.kernel.org
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
qcom-spmi-wled driver adds support for controlling backlight for
LCD panels that uses QTI PMICs like pmi8998, PM8150L and PM6150L.
This snapshot is taken as of msm-4.14
commit 9bb584ae3a9d ("msm/sde/rotator: Add rev checks for sdmmagpie").
Change-Id: Ie2d3e1999cef12a83b301d9e838a7425e18ca9d7
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
On Sun Ultra 5, it happens that the dot clock is not set up properly for
some videomodes. For example, if we set the videomode "r1024x768x60" in
the firmware, Linux would incorrectly set a videomode with refresh rate
180Hz when booting (suprisingly, my LCD monitor can display it, although
display quality is very low).
The reason is this: Older mach64 cards set the divider in the register
VCLK_POST_DIV. The register has four 2-bit fields (the field that is
actually used is specified in the lowest two bits of the register
CLOCK_CNTL). The 2 bits select divider "1, 2, 4, 8". On newer mach64 cards,
there's another bit added - the top four bits of PLL_EXT_CNTL extend the
divider selection, so we have possible dividers "1, 2, 4, 8, 3, 5, 6, 12".
The Linux driver clears the top four bits of PLL_EXT_CNTL and never sets
them, so it can work regardless if the card supports them. However, the
sparc64 firmware may set these extended dividers during boot - and the
mach64 driver detects incorrect dot clock in this case.
This patch makes the driver read the additional divider bit from
PLL_EXT_CNTL and calculate the initial refresh rate properly.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Ville Syrjälä <syrjala@sci.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace "fall though" with a proper "fall through" annotation.
This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough
Addresses-Coverity-ID: 402013 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
In some setups restoring the BGRT logo is undesirable, allow passing
video=efifb:nobgrt on the kernel commandline to disable it.
Reported-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
OMAPFB_MEMORY_READ ioctl reads pixels from the LCD's memory and copies
them to a userspace buffer. The code has two issues:
- The user provided width and height could be large enough to overflow
the calculations
- The copy_to_user() can copy uninitialized memory to the userspace,
which might contain sensitive kernel information.
Fix these by limiting the width & height parameters, and only copying
the amount of data that we actually received from the LCD.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reported-by: Jann Horn <jannh@google.com>
Cc: stable@vger.kernel.org
Cc: security@kernel.org
Cc: Will Deacon <will.deacon@arm.com>
Cc: Jann Horn <jannh@google.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
- add support for deferred console takeover, when enabled defers
fbcon taking over the console from the dummy console until the
first text is displayed on the console - together with the "quiet"
kernel commandline option this allows fbcon to still be used
together with a smooth graphical bootup (Hans de Goede)
- improve console locking debugging code (Thomas Zimmermann)
- copy the ACPI BGRT boot graphics to the framebuffer when deferred
console takeover support is used in efifb driver (Hans de Goede)
- update udlfb driver - fix lost console when the user unplugs a USB
adapter, fix the screen corruption issue, fix locking and add some
performance optimizations (Mikulas Patocka)
- update pxafb driver - fix using uninitialized memory, switch to
devm_* API, handle initialization errors and add support for
lcd-supply regulator (Daniel Mack)
- add support for boards booted with a DeviceTree in pxa3xx_gcu
driver (Daniel Mack)
- rename omap2 module to omap2fb.ko to avoid conflicts with omap1
driver (Arnd Bergmann)
- enable ACPI-based enumeration for goldfishfb driver (Yu Ning)
- fix goldfishfb driver to make user space Android code use 60 fps
(Christoffer Dall)
- print big fat warning when nomodeset kernel parameter is used in
vgacon driver (Lyude Paul)
- remove VLA usage from fsl-diu-fb driver (Kees Cook)
- misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring,
Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy
Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu)
- misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King)
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Merge tag 'fbdev-v4.19' of https://github.com/bzolnier/linux
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"Mostly small fixes and cleanups for fb drivers (the biggest updates
are for udlfb and pxafb drivers). This also adds deferred console
takeover support to the console code and efifb driver.
Summary:
- add support for deferred console takeover, when enabled defers
fbcon taking over the console from the dummy console until the
first text is displayed on the console - together with the "quiet"
kernel commandline option this allows fbcon to still be used
together with a smooth graphical bootup (Hans de Goede)
- improve console locking debugging code (Thomas Zimmermann)
- copy the ACPI BGRT boot graphics to the framebuffer when deferred
console takeover support is used in efifb driver (Hans de Goede)
- update udlfb driver - fix lost console when the user unplugs a USB
adapter, fix the screen corruption issue, fix locking and add some
performance optimizations (Mikulas Patocka)
- update pxafb driver - fix using uninitialized memory, switch to
devm_* API, handle initialization errors and add support for
lcd-supply regulator (Daniel Mack)
- add support for boards booted with a DeviceTree in pxa3xx_gcu
driver (Daniel Mack)
- rename omap2 module to omap2fb.ko to avoid conflicts with omap1
driver (Arnd Bergmann)
- enable ACPI-based enumeration for goldfishfb driver (Yu Ning)
- fix goldfishfb driver to make user space Android code use 60 fps
(Christoffer Dall)
- print big fat warning when nomodeset kernel parameter is used in
vgacon driver (Lyude Paul)
- remove VLA usage from fsl-diu-fb driver (Kees Cook)
- misc fixes (Julia Lawall, Geert Uytterhoeven, Fredrik Noring,
Yisheng Xie, Dan Carpenter, Daniel Vetter, Anton Vasilyev, Randy
Dunlap, Gustavo A. R. Silva, Colin Ian King, Fengguang Wu)
- misc cleanups (Roman Kiryanov, Yisheng Xie, Colin Ian King)"
* tag 'fbdev-v4.19' of https://github.com/bzolnier/linux: (54 commits)
Documentation/fb: corrections for fbcon.txt
fbcon: Do not takeover the console from atomic context
dummycon: Stop exporting dummycon_[un]register_output_notifier
fbcon: Only defer console takeover if the current console driver is the dummycon
fbcon: Only allow FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER if fbdev is builtin
fbdev: omap2: omapfb: fix ifnullfree.cocci warnings
fbdev: omap2: omapfb: fix bugon.cocci warnings
fbdev: omap2: omapfb: fix boolreturn.cocci warnings
fb: amifb: fix build warnings when not builtin
fbdev/core: Disable console-lock warnings when fb.lockless_register_fb is set
console: Replace #if 0 with atomic var 'ignore_console_lock_warning'
udlfb: use spin_lock_irq instead of spin_lock_irqsave
udlfb: avoid prefetch
udlfb: optimization - test the backing buffer
udlfb: allow reallocating the framebuffer
udlfb: set line_length in dlfb_ops_set_par
udlfb: handle allocation failure
udlfb: set optimal write delay
udlfb: make a local copy of fb_ops
udlfb: don't switch if we are switching to the same videomode
...
- Remove unused/obsolete code/comments
- New Functionality
- Allow less granular brightness specification for high-res PWMs; pwm_bl
- Align brightness {inc,dec}rements with that perceived by the human-eye; pwm_bl
- Fix-ups
- Prepare for the introduction of -Wimplicit-fall-through; adp8860_bl
- Bug Fixes
- Fix uninitialised variable; pwm_bl
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Merge tag 'backlight-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"Core Framework:
- Remove unused/obsolete code/comments
New Functionality:
- Allow less granular brightness specification for high-res PWMs; pwm_bl
- Align brightness {inc,dec}rements with that perceived by the human-eye; pwm_bl
Fix-ups:
- Prepare for the introduction of -Wimplicit-fall-through; adp8860_bl
Bug Fixes:
- Fix uninitialised variable; pwm_bl"
* tag 'backlight-next-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: pwm_bl: Fix uninitialized variable
backlight: adp8860: Mark expected switch fall-through
backlight: Remove obsolete comment for ->state
dt-bindings: pwm-backlight: Move brightness-levels to optional
backlight: pwm_bl: Compute brightness of LED linearly to human eye
dt-bindings: pwm-backlight: Add a num-interpolation-steps property
backlight: pwm_bl: Linear interpolation between brightness-levels
Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level
hardware bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of
the crazy out-of-tree drivers that have been floating around
for years, combined with some really hacky userspace
implementations. This is only for GNSS receivers, but you
have to start somewhere, and this is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and existing
drivers.
Full details of everything is in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the bit set of char/misc drivers for 4.19-rc1
There is a lot here, much more than normal, seems like everyone is
writing new driver subsystems these days... Anyway, major things here
are:
- new FSI driver subsystem, yet-another-powerpc low-level hardware
bus
- gnss, finally an in-kernel GPS subsystem to try to tame all of the
crazy out-of-tree drivers that have been floating around for years,
combined with some really hacky userspace implementations. This is
only for GNSS receivers, but you have to start somewhere, and this
is great to see.
Other than that, there are new slimbus drivers, new coresight drivers,
new fpga drivers, and loads of DT bindings for all of these and
existing drivers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
android: binder: Rate-limit debug and userspace triggered err msgs
fsi: sbefifo: Bump max command length
fsi: scom: Fix NULL dereference
misc: mic: SCIF Fix scif_get_new_port() error handling
misc: cxl: changed asterisk position
genwqe: card_base: Use true and false for boolean values
misc: eeprom: assignment outside the if statement
uio: potential double frees if __uio_register_device() fails
eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency
misc: ti-st: Fix memory leak in the error path of probe()
android: binder: Show extra_buffers_size in trace
firmware: vpd: Fix section enabled flag on vpd_section_destroy
platform: goldfish: Retire pdev_bus
goldfish: Use dedicated macros instead of manual bit shifting
goldfish: Add missing includes to goldfish.h
mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
dt-bindings: mux: add adi,adgs1408
Drivers: hv: vmbus: Cleanup synic memory free path
Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
...
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Merge tag 'media/v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- new Socionext MN88443x ISDB-S/T demodulator driver: mn88443x
- new sensor drivers: ak7375, ov2680 and rj54n1cb0c
- an old soc-camera sensor driver converted to the V4L2 framework:
mt9v111
- a new Voice-Coil Motor (VCM) driver: dw9807-vcm
- some cleanups at cx25821, removing legacy unused code
- some improvements at ddbridge driver
- new platform driver: vicodec
- some DVB API cleanups, removing ioctls and compat code for old
out-of-tree drivers that were never merged upstream
- improvements at DVB core to support frontents that support both
Satellite and non-satellite delivery systems
- got rid of the unused VIDIOC_RESERVED V4L2 ioctl
- some cleanups/improvements at gl861 ISDB driver
- several improvements on ov772x, ov7670 and ov5640, imx274, ov5645,
and smiapp sensor drivers
- fixes at em28xx to support dual TS devices
- some cleanups at V4L2/VB2 locking logic
- some API improvements at media controller
- some cec core and drivers improvements
- some uvcvideo improvements
- some improvements at platform drivers: stm32-dcmi, rcar-vin, coda,
reneseas-ceu, imx, vsp1, venus, camss
- lots of other cleanups and fixes
* tag 'media/v4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (406 commits)
Revert "media: vivid: shut up warnings due to a non-trivial logic"
siano: get rid of an unused return code for debugfs register
media: isp: fix a warning about a wrong struct initializer
media: radio-wl1273: fix return code for the polling routine
media: s3c-camif: fix return code for the polling routine
media: saa7164: fix return codes for the polling routine
media: exynos-gsc: fix return code if mutex was interrupted
media: mt9v111: Fix build error with no VIDEO_V4L2_SUBDEV_API
media: xc4000: get rid of uneeded casts
media: drxj: get rid of uneeded casts
media: tuner-xc2028: don't use casts for printing sizes
media: cleanup fall-through comments
media: vivid: shut up warnings due to a non-trivial logic
media: rtl28xxu: be sure that it won't go past the array size
media: mt9v111: avoid going past the buffer
media: vsp1_dl: add a description for cmdpool field
media: sta2x11: add a missing parameter description
media: v4l2-mem2mem: add descriptions to MC fields
media: i2c: fix warning in Aptina MT9V111
media: imx: shut up a false positive warning
...
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Merge tag 'drm-next-2018-08-15' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"This is the main drm pull request for 4.19.
Rob has some new hardware support for new qualcomm hw that I'll send
along separately. This has the display part of it, the remaining pull
is for the acceleration engine.
This also contains a wound-wait/wait-die mutex rework, Peter has acked
it for merging via my tree.
Otherwise mostly the usual level of activity. Summary:
core:
- Wound-wait/wait-die mutex rework
- Add writeback connector type
- Add "content type" property for HDMI
- Move GEM bo to drm_framebuffer
- Initial gpu scheduler documentation
- GPU scheduler fixes for dying processes
- Console deferred fbcon takeover support
- Displayport support for CEC tunneling over AUX
panel:
- otm8009a panel driver fixes
- Innolux TV123WAM and G070Y2-L01 panel driver
- Ilitek ILI9881c panel driver
- Rocktech RK070ER9427 LCD
- EDT ETM0700G0EDH6 and EDT ETM0700G0BDH6
- DLC DLC0700YZG-1
- BOE HV070WSA-100
- newhaven, nhd-4.3-480272ef-atxl LCD
- DataImage SCF0700C48GGU18
- Sharp LQ035Q7DB03
- p079zca: Refactor to support multiple panels
tinydrm:
- ILI9341 display panel
New driver:
- vkms - virtual kms driver to testing.
i915:
- Icelake:
Display enablement
DSI support
IRQ support
Powerwell support
- GPU reset fixes and improvements
- Full ppgtt support refactoring
- PSR fixes and improvements
- Execlist improvments
- GuC related fixes
amdgpu:
- Initial amdgpu documentation
- JPEG engine support on VCN
- CIK uses powerplay by default
- Move to using core PCIE functionality for gens/lanes
- DC/Powerplay interface rework
- Stutter mode support for RV
- Vega12 Powerplay updates
- GFXOFF fixes
- GPUVM fault debugging
- Vega12 GFXOFF
- DC improvements
- DC i2c/aux changes
- UVD 7.2 fixes
- Powerplay fixes for Polaris12, CZ/ST
- command submission bo_list fixes
amdkfd:
- Raven support
- Power management fixes
udl:
- Cleanups and fixes
nouveau:
- misc fixes and cleanups.
msm:
- DPU1 support display controller in sdm845
- GPU coredump support.
vmwgfx:
- Atomic modesetting validation fixes
- Support for multisample surfaces
armada:
- Atomic modesetting support completed.
exynos:
- IPPv2 fixes
- Move g2d to component framework
- Suspend/resume support cleanups
- Driver cleanups
imx:
- CSI configuration improvements
- Driver cleanups
- Use atomic suspend/resume helpers
- ipu-v3 V4L2 XRGB32/XBGR32 support
pl111:
- Add Nomadik LCDC variant
v3d:
- GPU scheduler jobs management
sun4i:
- R40 display engine support
- TCON TOP driver
mediatek:
- MT2712 SoC support
rockchip:
- vop fixes
omapdrm:
- Workaround for DRA7 errata i932
- Fix mm_list locking
mali-dp:
- Writeback implementation
PM improvements
- Internal error reporting debugfs
tilcdc:
- Single fix for deferred probing
hdlcd:
- Teardown fixes
tda998x:
- Converted to a bridge driver.
etnaviv:
- Misc fixes"
* tag 'drm-next-2018-08-15' of git://anongit.freedesktop.org/drm/drm: (1506 commits)
drm/amdgpu/sriov: give 8s for recover vram under RUNTIME
drm/scheduler: fix param documentation
drm/i2c: tda998x: correct PLL divider calculation
drm/i2c: tda998x: get rid of private fill_modes function
drm/i2c: tda998x: move mode_valid() to bridge
drm/i2c: tda998x: register bridge outside of component helper
drm/i2c: tda998x: cleanup from previous changes
drm/i2c: tda998x: allocate tda998x_priv inside tda998x_create()
drm/i2c: tda998x: convert to bridge driver
drm/scheduler: fix timeout worker setup for out of order job completions
drm/amd/display: display connected to dp-1 does not light up
drm/amd/display: update clk for various HDMI color depths
drm/amd/display: program display clock on cache match
drm/amd/display: Add NULL check for enabling dp ss
drm/amd/display: add vbios table check for enabling dp ss
drm/amd/display: Don't share clk source between DP and HDMI
drm/amd/display: Fix DP HBR2 Eye Diagram Pattern on Carrizo
drm/amd/display: Use calculated disp_clk_khz value for dce110
drm/amd/display: Implement custom degamma lut on dcn
drm/amd/display: Destroy aux_engines only once
...
Taking over the console involves allocating mem with GFP_KERNEL, talking
to drm drivers, etc. So this should not be done from an atomic context.
But the console-output trigger deferred console takeover may happen from an
atomic context, which leads to "BUG: sleeping function called from invalid
context" errors.
This commit fixes these errors by doing the deferred takeover from a
workqueue.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[b.zolnierkie: remove unused variable]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Now that we only allow FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER when
fbdev+fbcon are builtin exporting these is no longer necessary.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
We rely on dummycon's output notifier mechanism to defer the takeover.
If say vgacon is the current console driver then dummycon will never get
used so its output notifier will also never get called and fbcon never
takes over. This commit fixes this by only deferring the console takeover
if the current console driver is the dummycon driver.
This commit also moves the entirety of fbcon_start under the console_lock,
since the conswitchp which fbcon_start now checks is protected by it.
This commit also inlines fbcon_register_output_notifier, since we now
need a #ifdef CONFIG_FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER in fbcon_start
anyways because of the write access to the deferred_takeover variable,
this has the added advantage that it puts the
dummycon_register_output_notifier() call directly after the "conswitchp !=
&dummy_con" comparison making it clear why that check is there.
Note the arch setup code will set conswitchp to either dummy_con or
vga_con, in the cases where it gets set to vga_con even though their is
no vga_con present we rely on vga_con_startup() to set conswitchp to
dummy_con. vga_con_startup() is guaranteed to happen before
fb_console_init() as it gets called as a console_initcall where as
fb_console_init() gets called as a subsys_initcall.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Having FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER with fbdev+fbcon being build
as a module does not make much sense.
Having FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER only when fbdev+fbcon are
builtin was always the intention, hence the =y checks but they were
checking the wrong option, fbcon is build as part of fb.ko, so we must
check for FB=y.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
drivers/video/fbdev/omap2/omapfb/dss/dss_features.c:895:2-5: WARNING: Use BUG_ON instead of if condition followed by BUG.
Please make sure the condition has no side effects (see conditional BUG_ON definition in include/asm-generic/bug.h)
Use BUG_ON instead of a if condition followed by BUG.
Semantic patch information:
This makes an effort to find cases where BUG() follows an if
condition on an expression and replaces the if condition and BUG()
with a BUG_ON having the conditional expression of the if statement
as argument.
Generated by: scripts/coccinelle/misc/bugon.cocci
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
drivers/video/fbdev/omap2/omapfb/omapfb-main.c:290:9-10: WARNING: return of 0/1 in function 'cmp_var_to_colormode' with return type bool
Return statements in functions returning bool should use
true/false instead of 1/0.
Generated by: scripts/coccinelle/misc/boolreturn.cocci
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
drivers/video/fbdev/omap2/omapfb/dss/core.c:141:2-26: WARNING: NULL check before some freeing functions is not needed.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
Generated by: scripts/coccinelle/free/ifnullfree.cocci
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
drivers/video/fbdev/omap2/omapfb/dss/core.c:141:2-26: WARNING: NULL check before some freeing functions is not needed.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
Generated by: scripts/coccinelle/free/ifnullfree.cocci
Fixes: 7378f11498 ("media: omap2: omapfb: allow building it with COMPILE_TEST")
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
drivers/video/fbdev/omap2/omapfb/dss/dss_features.c:895:2-5: WARNING: Use BUG_ON instead of if condition followed by BUG.
Please make sure the condition has no side effects (see conditional BUG_ON definition in include/asm-generic/bug.h)
Use BUG_ON instead of a if condition followed by BUG.
Semantic patch information:
This makes an effort to find cases where BUG() follows an if
condition on an expression and replaces the if condition and BUG()
with a BUG_ON having the conditional expression of the if statement
as argument.
Generated by: scripts/coccinelle/misc/bugon.cocci
Fixes: 7378f11498 ("media: omap2: omapfb: allow building it with COMPILE_TEST")
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
drivers/video/fbdev/omap2/omapfb/omapfb-main.c:290:9-10: WARNING: return of 0/1 in function 'cmp_var_to_colormode' with return type bool
Return statements in functions returning bool should use
true/false instead of 1/0.
Generated by: scripts/coccinelle/misc/boolreturn.cocci
Fixes: 7378f11498 ("media: omap2: omapfb: allow building it with COMPILE_TEST")
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Fix build warning when built as a loadable module.
amifb_setup() and amifb_setup_mcap() are only needed when the driver
is builtin.
This matches how the functions are called (using #ifndef MODULE).
../drivers/video/fbdev/amifb.c:2344:19: warning: 'amifb_setup' defined but not used [-Wunused-function]
static int __init amifb_setup(char *options)
../drivers/video/fbdev/amifb.c:2307:20: warning: 'amifb_setup_mcap' defined but not used [-Wunused-function]
static void __init amifb_setup_mcap(char *spec)
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
If the console is unlocked during registration, the console subsystem
generates significant amounts of warnings, which obfuscate actual
debugging messages. Setting ignore_console_lock_warning while debugging
console registration avoid the noise.
v3:
- manipulate ignore_console_lock_warning with atomic_{inc,dec}
v2:
- restore ignore_console_lock_warning if lock_fb_info() fails
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
spin_lock_irqsave and spin_unlock_irqrestore is inteded to be called from
a context where it is unknown if interrupts are enabled or disabled (such
as interrupt handlers). From a process context, we should call
spin_lock_irq and spin_unlock_irq, that avoids the costly pushf and popf
instructions.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Modern processors can detect linear memory accesses and prefetch data
automatically, so there's no need to use prefetch.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Currently, the udlfb driver only tests for identical bytes at the
beginning or at the end of a page and renders anything between the first
and last mismatching pixel. But pages are not the same as lines, so this
is quite suboptimal - if there is something modified at the beginning of a
page and at the end of a page, the whole page is rendered, even if most of
the page is not modified.
This patch makes it test for identical pixels at the beginning and end of
each rendering command. This patch improves identical byte detection by
41% when playing video in a window.
This patch also fixes a possible screen corruption if the user is writing
to the framebuffer while dlfb_render_hline is in progress - the pixel data
that is copied to the backbuffer with memcpy may be different from the
pixel data that is actually rendered to the hardware (because the content
of the framebuffer may change between memcpy and the rendering command).
We must make sure that we copy exactly the same pixel as the pixel that is
being rendered.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
[b.zolnierkie: fix code indent]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This patch changes udlfb so that it may reallocate the framebuffer when
setting higher-resolution mode. If we boot the system without monitor
attached, udlfb creates a framebuffer with the size 800x600. This patch
makes it possible to select higher videomode with the fbset command when
a monitor is attached.
Note that there is no reliable way to prevent the system from touching the
old framebuffer, so we must not free it. We add it to the list
dlfb->deferred_free and free it when the driver is unloaded.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
[b.zolnierkie: sparse fixes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Set the variable "line_length" in the function dlfb_ops_set_par. Without
this, we get garbage if we select different videomode with fbset.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Allocations larger than PAGE_ALLOC_COSTLY_ORDER are unreliable and they
may fail anytime. This patch fixes the udlfb driver so that when a large
alloactions fails, it tries to do multiple smaller allocations.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The defio subsystem overwrites the method fb_osp->mmap. That method is
stored in module's static data - and that means that if we have multiple
diplaylink adapters, they will over write each other's method.
In order to avoid interference between multiple adapters, we copy the
fb_ops structure to a device-local memory.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The udlfb driver reprograms the hardware everytime the user switches the
console, that makes quite unusable when working on the console.
This patch makes the driver remember the videomode we are in and avoid
reprogramming the hardware if we switch to the same videomode.
We mask the "activate" field and the "FB_VMODE_SMOOTH_XPAN" flag when
comparing the videomode, because they cause spurious switches when
switching to and from the Xserver.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The displaylink hardware has such a peculiarity that it doesn't render a
command until next command is received. This produces occasional
corruption, such as when setting 22x11 font on the console, only the first
line of the cursor will be blinking if the cursor is located at some
specific columns.
When we end up with a repeating pixel, the driver has a bug that it leaves
one uninitialized byte after the command (and this byte is enough to flush
the command and render it - thus it fixes the screen corruption), however
whe we end up with a non-repeating pixel, there is no byte appended and
this results in temporary screen corruption.
This patch fixes the screen corruption by always appending a byte 0xAF at
the end of URB. It also removes the uninitialized byte.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
I observed that the performance of the udl fb driver degrades over time.
On a freshly booted machine, it takes 6 seconds to do "ls -la /usr/bin";
after some time of use, the same operation takes 14 seconds.
The reason is that the value of "limit_sem" decays over time.
The udl driver uses a semaphore "limit_set" to specify how many free urbs
are there on dlfb->urbs.list. If the count is zero, the "down" operation
will sleep until some urbs are added to the freelist.
In order to avoid some hypothetical deadlock, the driver will not call
"up" immediately, but it will offload it to a workqueue. The problem is
that if we call "schedule_delayed_work" on the same work item multiple
times, the work item may only be executed once.
This is happening:
* some urb completes
* dlfb_urb_completion adds it to the free list
* dlfb_urb_completion calls schedule_delayed_work to schedule the function
dlfb_release_urb_work to increase the semaphore count
* as the urb is on the free list, some other task grabs it and submits it
* the submitted urb completes, dlfb_urb_completion is called again
* dlfb_urb_completion calls schedule_delayed_work, but the work is already
scheduled, so it does nothing
* finally, dlfb_release_urb_work is called, it increases the semaphore
count by 1, although it should increase it by 2
So, the semaphore count is decreasing over time, and this causes gradual
performance degradation.
Note that in the current kernel, the "up" function may be called from
interrupt and it may race with the "down" function called by another
thread, so we don't have to offload the call of "up" to a workqueue at
all. This patch removes the workqueue code. The patch also changes
"down_interruptible" to "down" in dlfb_free_urb_list, so that we will
clean up the driver properly even if a signal arrives.
With this patch, the performance of udlfb no longer degrades.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
[b.zolnierkie: fix immediatelly -> immediately typo]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
I have a USB display adapter using the udlfb driver and I use it on an ARM
board that doesn't have any graphics card. When I plug the adapter in, the
console is properly displayed, however when I unplug and re-plug the
adapter, the console is not displayed and I can't access it until I reboot
the board.
The reason is this:
When the adapter is unplugged, dlfb_usb_disconnect calls
unlink_framebuffer, then it waits until the reference count drops to zero
and then it deallocates the framebuffer. However, the console that is
attached to the framebuffer device keeps the reference count non-zero, so
the framebuffer device is never destroyed. When the USB adapter is plugged
again, it creates a new device /dev/fb1 and the console is not attached to
it.
This patch fixes the bug by unbinding the console from unlink_framebuffer.
The code to unbind the console is moved from do_unregister_framebuffer to
a function unbind_console. When the console is unbound, the reference
count drops to zero and the udlfb driver frees the framebuffer. When the
adapter is plugged back, a new framebuffer is created and the console is
attached to it.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Bernie Thompson <bernie@plugable.com>
Cc: Ladislav Michl <ladis@linux-mips.org>
Cc: stable@vger.kernel.org
[b.zolnierkie: preserve old behavior for do_unregister_framebuffer()]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Currently, if the DT does not define num-interpolated-steps then
num_steps is undefined and the interpolation code will deploy randomly.
Fix with a simple initialize to zero.
Fixes: 573fe6d1c2 ("backlight: pwm_bl: Linear interpolation between brightness-levels")
Reported-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
On x86 some firmwares use a low non native resolution for the display when
they have shown some text messages. While keeping the bgrt filled with info
for the native resolution. If the bgrt image intended for the native
resolution still fits, it will be displayed very close to the right edge of
the display looking quite bad.
This commits adds a (heuristics based) checks for this and makes efifb
not show the boot graphics when this is the case.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Fix indentation warning (from gcc 8.1.0) in omap2/omapfb:
../drivers/video/fbdev/omap2/omapfb/dss/dispc.c: In function 'pixinc':
../drivers/video/fbdev/omap2/omapfb/dss/dispc.c:1859:2: warning: this 'else' clause does not guard... [-Wmisleading-indentation]
else
^~~~
../drivers/video/fbdev/omap2/omapfb/dss/dispc.c:1861:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'else'
return 0;
^~~~~~
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Pointer 'in' is being assigned but is never used hence it is
redundant and can be removed.
Cleans up clang warning:
warning: variable 'in' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The value of tmp being used in the switch statement has the range of
just 0..3 hence the case 4 statement can never be reached and is
deadcode and can be removed.
Detected by CoverityScan, CID#744384 ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The omapfb_register_client[] array has OMAPFB_PLANE_NUM elements so the
> should be >= or we are one element beyond the end of the array.
Fixes: 8b08cf2b64 ("OMAP: add TI OMAP framebuffer driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Imre Deak <imre.deak@solidboot.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Fix a build warning in viafbdev.c when CONFIG_PROC_FS is not enabled
by marking the unused function as __maybe_unused.
../drivers/video/fbdev/via/viafbdev.c:1471:12: warning: 'viafb_sup_odev_proc_show' defined but not used [-Wunused-function]
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
