Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.
This would only cause trouble if the child node is missing while there
is an unrelated node named "backlight" elsewhere in the tree.
Cc: stable <stable@vger.kernel.org> # 3.7
Fixes: eebfdc17cc ("backlight: Add TPS65217 WLED driver")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.
To make things worse, the parent mfd node was also prematurely freed,
while the child backlight node was leaked.
Cc: stable <stable@vger.kernel.org> # 3.9
Fixes: 47ec340cb8 ("mfd: max8925: Support dt for backlight")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.
To make things worse, the parent mfd node was also prematurely freed.
Cc: stable <stable@vger.kernel.org> # 3.10
Fixes: 59eb2b5e57 ("drivers/video/backlight/as3711_bl.c: add OF support")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Leaking driver internal tracking into the already massively confusing
backlight power tracking is really confusing.
Stop that by allocating a tiny driver private data structure instead.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Nothing in the entire tree ever sets this, which means this is dead
code. Remove it.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This patch adds a LCD driver supporting the OTM3225A LCD SoC
from ORISE Technology. This device can drive TFT LC panels having a
resolution of 240x320 pixels. After initializing the OTM3225A using
it's SPI interface it switches to use 16-bib RGB as external
display interface.
Signed-off-by: Felix Brack <fb@ltec.ch>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The documentation was wrong, gpiod_get_direction() returns 0/1 instead
of the GPIOF_* flags. The docs were fixed with commit 94fc73094a
("gpio: correct docs about return value of gpiod_get_direction"). Now,
fix this user (until a better, system-wide solution is in place).
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Some panels (i.e. N116BGE-L41), in their power sequence specifications,
request a delay between set the PWM signal and enable the backlight and
between clear the PWM signal and disable the backlight. Add support for
the new post-pwm-on-delay-ms and pwm-off-delay-ms proprieties to meet
the timings.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Before this patch the enable signal was set before the PWM signal and
vice-versa on power off. This sequence is wrong, at least, it is on
the different panels datasheets that I checked, so I inverted the sequence
to follow the specs.
For reference the following panels have the mentioned sequence:
- N133HSE-EA1 (Innolux)
- N116BGE (Innolux)
- N156BGE-L21 (Innolux)
- B101EAN0 (Auo)
- B101AW03 (Auo)
- LTN101NT05 (Samsung)
- CLAA101WA01A (Chunghwa)
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This driver provides access to RAVE SP backlight control
functionality.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
- make it possible to load radeonfb driver when offb driver is loaded first
(Mathieu Malaterre)
- fix memory leak in offb driver (Mathieu Malaterre)
- fix unaligned access in udlfb driver (Ladislav Michl)
- convert atmel_lcdfb driver to use GPIO descriptors (Ludovic Desroches)
- avoid mismatched prototypes in sisfb driver (Arnd Bergmann)
- remove VLA usage from viafb driver (Gustavo A. R. Silva)
- add missing help text to FB_I810_I2 config option (Ulf Magnusson)
- misc fixes (Gustavo A. R. Silva, Colin Ian King, Markus Elfring)
- remove dead code from s3c-fb driver for Exynos and S5PV210 platforms
- misc cleanups (Corentin Labbe, Ladislav Michl, Ulf Magnusson, Vladimir
Zapolskiy, Markus Elfring)
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Merge tag 'fbdev-v4.17' of git://github.com/bzolnier/linux
Pull fbdev updates from Bartlomiej Zolnierkiewicz:
"There is nothing really major here, just a couple of small bugfixes,
improvements and cleanups:
- make it possible to load radeonfb driver when offb driver is loaded
first (Mathieu Malaterre)
- fix memory leak in offb driver (Mathieu Malaterre)
- fix unaligned access in udlfb driver (Ladislav Michl)
- convert atmel_lcdfb driver to use GPIO descriptors (Ludovic
Desroches)
- avoid mismatched prototypes in sisfb driver (Arnd Bergmann)
- remove VLA usage from viafb driver (Gustavo A. R. Silva)
- add missing help text to FB_I810_I2 config option (Ulf Magnusson)
- misc fixes (Gustavo A. R. Silva, Colin Ian King, Markus Elfring)
- remove dead code from s3c-fb driver for Exynos and S5PV210
platforms
- misc cleanups (Corentin Labbe, Ladislav Michl, Ulf Magnusson,
Vladimir Zapolskiy, Markus Elfring)"
* tag 'fbdev-v4.17' of git://github.com/bzolnier/linux: (32 commits)
video: fbdev: s3c-fb: remove dead platform code for Exynos and S5PV210 platforms
video: au1100fb: Delete an unnecessary variable initialisation in au1100fb_drv_probe()
video: au1100fb: Improve a size determination in au1100fb_drv_probe()
video: au1100fb: Delete an error message for a failed memory allocation in au1100fb_drv_probe()
video/console/sticore: Delete an error message for a failed memory allocation in sti_try_rom_generic()
video: ARM CLCD: Improve a size determination in clcdfb_probe()
video: ARM CLCD: Delete an error message for a failed memory allocation in clcdfb_probe()
video: matroxfb: Delete an error message for a failed memory allocation in matroxfb_crtc2_probe()
video: s3c-fb: Improve a size determination in s3c_fb_probe()
video: s3c-fb: Delete an error message for a failed memory allocation in s3c_fb_probe()
video: fsl-diu-fb: Delete an error message for a failed memory allocation in fsl_diu_init()
video: ssd1307fb: Improve a size determination in ssd1307fb_probe()
video: smscufx: Delete an error message for a failed memory allocation in ufx_realloc_framebuffer()
video: smscufx: Return an error code only as a constant in ufx_realloc_framebuffer()
video: smscufx: Less checks in ufx_usb_probe() after error detection
video: udlfb: Return an error code only as a constant in dlfb_realloc_framebuffer()
video/fbdev/stifb: Delete an error message for a failed memory allocation in stifb_init_fb()
video/fbdev/stifb: Return -ENOMEM after a failed kzalloc() in stifb_init_fb()
video: fbdev: aty128fb: use true and false for boolean values
fbdev: aty: fix missing indentation in if statement
...
Pull s390 updates from Martin Schwidefsky:
- Improvements for the spectre defense:
* The spectre related code is consolidated to a single file
nospec-branch.c
* Automatic enable/disable for the spectre v2 defenses (expoline vs.
nobp)
* Syslog messages for specve v2 are added
* Enable CONFIG_GENERIC_CPU_VULNERABILITIES and define the attribute
functions for spectre v1 and v2
- Add helper macros for assembler alternatives and use them to shorten
the code in entry.S.
- Add support for persistent configuration data via the SCLP Store Data
interface. The H/W interface requires a page table that uses 4K pages
only, the code to setup such an address space is added as well.
- Enable virtio GPU emulation in QEMU. To do this the depends
statements for a few common Kconfig options are modified.
- Add support for format-3 channel path descriptors and add a binary
sysfs interface to export the associated utility strings.
- Add a sysfs attribute to control the IFCC handling in case of
constant channel errors.
- The vfio-ccw changes from Cornelia.
- Bug fixes and cleanups.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (40 commits)
s390/kvm: improve stack frame constants in entry.S
s390/lpp: use assembler alternatives for the LPP instruction
s390/entry.S: use assembler alternatives
s390: add assembler macros for CPU alternatives
s390: add sysfs attributes for spectre
s390: report spectre mitigation via syslog
s390: add automatic detection of the spectre defense
s390: move nobp parameter functions to nospec-branch.c
s390/cio: add util_string sysfs attribute
s390/chsc: query utility strings via fmt3 channel path descriptor
s390/cio: rename struct channel_path_desc
s390/cio: fix unbind of io_subchannel_driver
s390/qdio: split up CCQ handling for EQBS / SQBS
s390/qdio: don't retry EQBS after CCQ 96
s390/qdio: restrict buffer merging to eligible devices
s390/qdio: don't merge ERROR output buffers
s390/qdio: simplify math in get_*_buffer_frontier()
s390/decompressor: trim uncompressed image head during the build
s390/crypto: Fix kernel crash on aes_s390 module remove.
s390/defkeymap: fix global init to zero
...
Here is the big set of tty and serial driver patches for 4.17-rc1
Not all that big really, most are just small fixes and additions to
existing drivers. There's a bunch of work on the imx serial driver
recently for some reason, and a new embedded serial driver added as
well.
Full details are in the shortlog.
All of these have been in the linux-next tree for a while with no
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big set of tty and serial driver patches for 4.17-rc1
Not all that big really, most are just small fixes and additions to
existing drivers. There's a bunch of work on the imx serial driver
recently for some reason, and a new embedded serial driver added as
well.
Full details are in the shortlog.
All of these have been in the linux-next tree for a while with no
reported issues"
* tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits)
serial: expose buf_overrun count through proc interface
serial: mvebu-uart: fix tx lost characters
tty: serial: msm_geni_serial: Fix return value check in qcom_geni_serial_probe()
tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP
8250-men-mcb: add support for 16z025 and 16z057
powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused
serial: stm32: fix initialization of RS485 mode
ARM: dts: STi: Remove "console=ttyASN" from bootargs for STi boards
vt: change SGR 21 to follow the standards
serdev: Fix typo in serdev_device_alloc
ARM: dts: STi: Fix aliases property name for STi boards
tty: st-asc: Update tty alias
serial: stm32: add support for RS485 hardware control mode
dt-bindings: serial: stm32: add RS485 optional properties
selftests: add devpts selftests
devpts: comment devpts_mntget()
devpts: resolve devpts bind-mounts
devpts: hoist out check for DEVPTS_SUPER_MAGIC
serial: 8250: Add Nuvoton NPCM UART
serial: mxs-auart: disable clks of Alphascale ASM9260
...
Pull parisc updates from Helge Deller:
"Lots of small enhancements and fixes in this patchset:
- improved the x86-64 compatibility for PCI cards by returning -1UL
for timed out MMIO transactions (instead of crashing)
- fixed HPMC handler for PAT machines: size needs to be multiple of 16
- prepare machine_power_off() to be able to turn rp3410 and c8000
machines off via IMPI
- added code to extract machine info for usage with qemu
- some init sections fixes
- lots of fixes for sparse-, ubsan- and uninitalized variables
warnings"
* 'parisc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix out of array access in match_pci_device()
parisc: Add code generator for Qemu/SeaBIOS machine info
parisc/pci: Switch LBA PCI bus from Hard Fail to Soft Fail mode
parisc: Fix HPMC handler by increasing size to multiple of 16 bytes
parisc: Directly call machine_power_off() in power button driver
parisc: machine_power_off() should call pm_power_off()
parisc/Kconfig: SMP kernels boot on all machines
parisc: Silence uninitialized variable warning in dbl_to_sgl_fcnvff()
parisc: Move various functions and strings to init section
parisc: Convert MAP_TYPE to cover 4 bits on parisc
parisc: Force to various endian types for sparse
parisc/gscps2: Fix sparse warnings
parisc/led: Fix sparse warnings
parisc/parport_gsc: Use NULL to avoid sparse warning
parisc/stifb: Use fb_memset() to avoid sparse warning
This removes the entire architecture code for blackfin, cris, frv, m32r,
metag, mn10300, score, and tile, including the associated device drivers.
I have been working with the (former) maintainers for each one to ensure
that my interpretation was right and the code is definitely unused in
mainline kernels. Many had fond memories of working on the respective
ports to start with and getting them included in upstream, but also saw
no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company
in charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems
that all the SoC product lines are still around, but have not used the
custom CPU architectures for several years at this point. In contrast,
CPU instruction sets that remain popular and have actively maintained
kernel ports tend to all be used across multiple licensees.
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I made
sure that they are all unused. Some architectures (notably tile, mn10300,
and blackfin) are still being shipped in products with old kernels,
but those products will never be updated to newer kernel releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing their
support or getting it added to mainline gcc in the first place.
They all have patched gcc-7.3 ports that work to some degree, but
complete upstream support won't happen before gcc-8.1. Csky posted
their first kernel patch set last week, their situation will be similar.
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Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann:
"This removes the entire architecture code for blackfin, cris, frv,
m32r, metag, mn10300, score, and tile, including the associated device
drivers.
I have been working with the (former) maintainers for each one to
ensure that my interpretation was right and the code is definitely
unused in mainline kernels. Many had fond memories of working on the
respective ports to start with and getting them included in upstream,
but also saw no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company in
charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
seems that all the SoC product lines are still around, but have not
used the custom CPU architectures for several years at this point. In
contrast, CPU instruction sets that remain popular and have actively
maintained kernel ports tend to all be used across multiple licensees.
[ See the new nds32 port merged in the previous commit for the next
generation of "one company in charge of an SoC line, a CPU
microarchitecture and a software ecosystem" - Linus ]
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I
made sure that they are all unused. Some architectures (notably tile,
mn10300, and blackfin) are still being shipped in products with old
kernels, but those products will never be updated to newer kernel
releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing
their support or getting it added to mainline gcc in the first
place. They all have patched gcc-7.3 ports that work to some
degree, but complete upstream support won't happen before gcc-8.1.
Csky posted their first kernel patch set last week, their situation
will be similar
[ Palmer Dabbelt points out that RISC-V support is in mainline gcc
since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]"
This really says it all:
2498 files changed, 95 insertions(+), 467668 deletions(-)
* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
MAINTAINERS: UNICORE32: Change email account
staging: iio: remove iio-trig-bfin-timer driver
tty: hvc: remove tile driver
tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
serial: remove tile uart driver
serial: remove m32r_sio driver
serial: remove blackfin drivers
serial: remove cris/etrax uart drivers
usb: Remove Blackfin references in USB support
usb: isp1362: remove blackfin arch glue
usb: musb: remove blackfin port
usb: host: remove tilegx platform glue
pwm: remove pwm-bfin driver
i2c: remove bfin-twi driver
spi: remove blackfin related host drivers
watchdog: remove bfin_wdt driver
can: remove bfin_can driver
mmc: remove bfin_sdh driver
input: misc: remove blackfin rotary driver
input: keyboard: remove bf54x driver
...
driver and timer driver), which has been through 7 rounds of review on mailing
list.
It is able to boot to shell and passes most LTP-2017 testsuites in nds32 AE3XX
platform.
Total Tests: 1901
Total Skipped Tests: 618
Total Failures: 78
Copied below is the ChangeLog that contains the history of this patch set:
Changes in v7:
- Update cpu binding document to add "andestech,nds32v3" as fallback
- Remove unnecessary configs of arch/nds32/Kconfig
- Use GENERIC_CALIBRATE_DELAY
- Add more help texts for minimum CPU type config
- Update defconfig because of Kconfig changed and bug fixed
- Move early_trap_init() declaration to nds32.h
- Refine dma.c
- Remove apply_relocate() in module.c and include <linux/moduleloader.h> to catch it
- Add do_kernel_restart() in machine_restart()
- Clean up setup.c to remove CONFIG_VGA_CONSOLE and some extern declaration functions
- Add negative dependency for VGA_CONSOLE on nds32
- Refine ptrace.c and arch/nds32/include/asm/ptrace.h
- Refine syscall restart flow and arch/nds32/kernel/signal.c
- Fix a bug in VDSO
- Remove the handling for kernel code unaligned accessing
- Add a description for unaligned access handling in git commit message.
- Rebase to v4.16-rc1
- Replace ACCESS_ONCE with READ_ONCE
- Replace atomic_long_dec(&mm->nr_ptes) with mm_dec_nr_ptes(mm)
- Remove print_symbol(%s) with printk(%pS)
- Add bpf_perf_event.h
- Remove init_stack and init_thread_info
Changes in v6:
- Refine naming for atl2c
- Refine ae3xx.dts
- Remove CONFIG_TIMER_ATCPIT100 in defconfig
- Refine elf.h
- Fix a vdso bug
- Separate arch patchset and timer patchset
- To select TIMER_OF in drivers/clocksource/Kconfig instead of arch/nds32/Kconfig
Changes in v5:
- Remove __NR__llseek and sys_mmap()
- Add a comment to explain that we don't have clocksource cycle counter in the CPU
- Add volatile in iounmap()
- Fix typo Featuretures to Features
- Replace CPU_CACHE_NONALIASING with !CPU_CACHE_ALIASING
- Fix a endian bug when we try to get val = of_get_property(cpu,"clock-frequency", NULL)
- Add screen_info to fix the building error when CONFIG_ VGA_CONSOLE is enabled
- Remove unnecessary msync()
- Add depends on !64BIT || BROKEN for faraday Kconfig because the descriptor only supports 32bit
- Add atl2c binding document
- Remove unnecessary include headers
- Fix a vector table bug. It placed wrong vector handlers for 2 exceptions.
- Fix a vdso bug. It may encounter TLB multi-hit exception because we accidently set it as a global page.
- Add proper isb and barrier after some cache operations
- Fix a bug in system call restart flow. $r0 ~ $r5 does not be recovered before restarting system call
- Fix the build errors for OpenRISC and SPARC because io.h changed.
- Update ae3xx.dts to support atl2c.
Changes in v4:
- Add atcpit100 timer driver due to it include vdso implementations and sent
them together with nds32 may help reviewer to review.
- Update ae3xx.dts for atcpit100 clock setting and remove vdso settings.
- To get cycle counter register by timer driver instead of dts.
- Use "depends on NDS32 || COMPILE_TEST" in atcpit100 driver because it is needed for nds32 vdso
- Update defconfig becasue kconfig rename from CONFIG_CLKSRC_ATCPIT100 to CONFIG_TIMER_ATCPIT100
- Remove ag101p.dts because we are not yet ready for ag101p platform.
- Update copyright style to SPDX-License-Identifier
- Include <linux/uaccess.h> instead of <asm/uaccess.h>
- Add local_irq_save()/local_irq_restore() to protect SR_TLB_VPN in update_mmu_cache().
- Update cpu_dcache_inval_all implementation to make sure all level cache are writeback.
Changes in v3:
- Use arch's io.h instead of generic one
- Add andestech-boards binding document
- Update nds32/cpus.txt binding document
- Remove atcpit100 timer drivers
- Select NO_BOOTMEM and delete HAVE_MEMBLOCK_NODE_MAP
- make CPU_BIG_ENDIAN and CPU_LITTLE_ENDIAN are dependent
- Add cpu type to select HWZOL/CPU_CACHE_ALIASING
- Change CPU_CACHE_NONALIASING to CPU_CACHE_ALIASING
- Remove bootarg from device tree script
- Update ag101p.dts and ae3xx.dts for correct board name.
- Clear and simplify defconfig
- Implement L2C_R_REG/ L2C_W_REG with readl/writel instead of __raw_readl/__raw_writel for endian save
- Remove early_init_dt_add_memory_arch/early_init_dt_alloc_memory_arch to use the generic ones
- Refine devicetree.c
- Fix bug https://lkml.kernel.org/r/1499782590-31366-1-git-send-ema...
- Refine irqchip/irq-ativic32.c implementations
- Add COMPILE_TEST in drivers/net/ethernet/faraday/Kconfig
- Refine cache operations
- Add CONFIG_HW_SUPPORT_UNALIGNMENT_ACCESS
- Fix ZERO_PAGE define
- Remove SA_RESTORER
- Remove uapi/asm/signal.h
- Redefine user_pt_regs
- Remove spinlock.h
- Remove __ARCH_WANT_RENAMEAT and __ARCH_WANT_SYSCALL_OFF_T from unistd.h
- Remove set_fs(USER_DS) because flush_old_exec() will do this setting
- Replace in_atomic() with faulthandler_disabled()
- Add barrier.h
- Select COMMON_CLK
- Add clk_pll in dts
- Add of_clk_init() in arch/nds32/kernel/time.c
Changes in v2:
- Set GENERIC_CALIBRATE_DELAY default n
- Add earlycon support
- Remove earlyprintk
- Add CPU_BIG_ENDIAN, CPU_LITTLE_ENDIAN support
- Refine unalignment access exception handler
- Add VMSPLIT support
- Use only one defconfig
- Change interrupt-cells from 2 to 1
- Refine andestech cpu names in bindings/nds32/cpus.txt
- Get clock frequency in dts because fpga bitmap doesn't include this feature
- Update MAINTAINERS for bindings
- Remove unused configs in Kconfig
- Refine device tree scripts
- Refine coding style
- Use generic ioremap_nocache
- Remove L2CC_PA_BASE define and its codes in head.S. It will be moved to bootloader.
- Set PHYS_OFFSET to 0x0 instead of CONFIG_MEMORY_START
- Remove unused macros
- Simplify cpu_cache_* API
- Change __asm__ __volatile__ to asm volatile
- Refine uaccess.h
- Remove unused/deprecated syscall
- Use generic posix_types.h
- Remove arch_trace_hardirqs_on/arch_trace_hardirqs_off
- Fix bug of restart syscall
- Refine syscall implementations
- Use IS_ENABLED to replace ifdef as possible
- Remove device_initcall(nds32_device_probe)
- Refine vdso implementations
- Refine copy_from_user()/copy_to_user()/clear_user()/get_user()/memmove()/memcpy()
- Refine ioremap.c
- Refine irq-ativic32.c
- Fix a bug of earlycon.c
- Export ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt
- Add atcpit100 driver
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Merge tag 'nds32-for-linus-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux
Pull nds32 architecture support from Greentime Hu:
"This contains the core nds32 Linux port (including interrupt
controller driver and timer driver), which has been through seven
rounds of review on mailing list.
It is able to boot to shell and passes most LTP-2017 testsuites in
nds32 AE3XX platform:
Total Tests: 1901
Total Skipped Tests: 618
Total Failures: 78"
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
* tag 'nds32-for-linus-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux: (44 commits)
nds32: To use the generic dump_stack()
nds32: fix building failed if using elf toolchain.
nios2: add ioremap_nocache declaration before include asm-generic/io.h.
nds32: fix building failed if using older version gcc.
dt-bindings: timer: Add andestech atcpit100 timer binding doc
clocksource/drivers/atcpit100: VDSO support
clocksource/drivers/atcpit100: Add andestech atcpit100 timer
net: faraday add nds32 support.
irqchip: Andestech Internal Vector Interrupt Controller driver
dt-bindings: interrupt-controller: Andestech Internal Vector Interrupt Controller
dt-bindings: nds32 SoC Bindings
dt-bindings: nds32 L2 cache controller Bindings
dt-bindings: nds32 CPU Bindings
MAINTAINERS: Add nds32
nds32: Build infrastructure
nds32: defconfig
nds32: Miscellaneous header files
nds32: Device tree support
nds32: Generic timers support
nds32: Loadable modules
...
Exynos5, Exynos4 and S5PV210 platforms have been converted to
use Device Tree and Exynos DRM driver long time ago. Remove
dead platform code for these platforms and update Kconfig
s3c-fb entry accordingly.
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
The local variable "fbdev" will be reassigned by a following statement.
Thus omit the explicit initialisation at the beginning.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E. J. Bottomley" <jejb@parisc-linux.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Timur Tabi <timur@tabi.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Bastian Stender <bst@pengutronix.de>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* Return an error code without storing it in an intermediate variable.
* Delete the label "error" and local variable "retval"
which became unnecessary with this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Up to four checks could be repeated by the ufx_usb_probe() function
during error handling even if the relevant properties can be determined
for the involved variables before by source code analysis.
* Return directly after a call of the function "kzalloc" failed
at the beginning.
* Adjust jump targets so that extra checks can be omitted at the end.
* Delete initialisations for the variables "info" and "retval"
which became unnecessary with this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
* Return an error code without storing it in an intermediate variable.
* Delete the label "error" and local variable "retval"
which became unnecessary with this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Omit an extra message for a memory allocation failure in this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E. J. Bottomley" <jejb@parisc-linux.org>
Cc: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Replace an error code for the indication of a memory allocation failure
in this function.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2: Initial git repository build")
Suggested-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E. J. Bottomley" <jejb@parisc-linux.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Assign true or false to boolean variables instead of an integer value.
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
There is a missing indentation following an if statement, fix this.
Detected by Coccinelle:
drivers/video/fbdev/aty/mach64_ct.c:183:2-15: code aligned with
following code on line 184
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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Backmerge tag 'v4.16-rc7' into drm-next
Linux 4.16-rc7
This was requested by Daniel, and things were getting
a bit hard to reconcile, most of the conflicts were
trivial though.
The m32r architecture is being removed, so this is no longer needed.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The blackfin and m32r architectures are getting removed, so it's
time to clean up the logos as well.
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A lot of Kconfig symbols have architecture specific dependencies.
In those cases that depend on architectures we have already removed,
they can be omitted.
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The S390 architecture does not support any graphics hardware,
but with the latest support for Virtio GPU in Linux and Virtio
GPU emulation in QEMU, it's possible to enable graphics for
S390 using the Virtio GPU device.
To enable display we need to enable the Linux Virtual Terminal (VT)
layer for S390. But the VT subsystem initializes quite early
at boot so we need a dummy console driver till the Virtio GPU
driver is initialized and we can run the framebuffer console.
The framebuffer console over a Virtio GPU device can be run
in combination with the serial SCLP console (default on S390).
The SCLP console can still be accessed by management applications
(eg: via Libvirt's virsh console).
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <e23b61f4f599ba23881727a1e8880e9d60cc6a48.1519315352.git.alifm@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The 'commit e25df1205f ("[S390] Kconfig: menus with depends on HAS_IOMEM.")'
added the HAS_IOMEM dependecy for "Graphics support". This disabled the
"Graphics support" menu for S390. But if we enable VT layer for S390,
we would also need to enable the dummy console. So let's remove the
HAS_IOMEM dependency.
Move this dependency to sub menu items and console drivers that use
io memory.
Signed-off-by: Farhan Ali <alifm@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <6e8ef238162df5be4462126be155975c722e9863.1519315352.git.alifm@linux.vnet.ibm.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
In preparation to enabling -Wvla, remove VLA usage.
Also, fixed as part of the directive to remove all VLAs from
the kernel: https://lkml.org/lkml/2018/3/7/621
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cast _pitch_ to u64 in order to give the compiler complete information
about the proper arithmetic to use. Notice that this variable is
being used in a context that expects an expression of type u64
(64 bits, unsigned).
The expression pitch * var->yres_virtual is currently being evaluated
using 32-bit arithmetic and the result of the operation is being stored
into variable mem, which is a variable of type u64. Based on that,
chances are there is a potential integer overflow as a result of the
operation.
Addresses-Coverity-ID: 200655 ("Unintentional integer overflow")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Since introduction of of_display_timings_exist() function in commit
cc3f414cf2 ("video: add of helper for display timings/videomode") it
didn't attract any users, and the function has no potential, because
of_get_display_timings() covers its functionality and does more.
Drop the unused exported function from the kernel.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
When the linux kernel is build with (typical kernel ship with Debian
installer):
CONFIG_FB=y
CONFIG_FB_OF=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_FB_RADEON=m
The offb driver takes precedence over module radeonfb. It is then
impossible to load the module, error reported is:
[ 96.551486] radeonfb 0000:00:10.0: enabling device (0006 -> 0007)
[ 96.551526] radeonfb 0000:00:10.0: BAR 0: can't reserve [mem 0x98000000-0x9fffffff pref]
[ 96.551531] radeonfb (0000:00:10.0): cannot request region 0.
[ 96.551545] radeonfb: probe of 0000:00:10.0 failed with error -16
This patch reproduce the behavior of the module radeon, so as to make it
possible to load radeonfb when offb is first loaded, see
commit a56f7428d7 ("drm/radeon: Add early unregister of firmware fb's").
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Link: https://bugs.debian.org/826629#57
Link: https://bugzilla.kernel.org/show_bug.cgi?id=119741
Suggested-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
