This patch adds support UART0, I2C0, I2C1 and SPI0 available
on Low Speed expansion connector.
Bug: 146449535
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I03b457230641fdbf30adf1bf8730e0ff95354b7c
Enable MDSS and DSI and add the LT9611 HDMI bridge. DSI1 is supposedly
needed for 4k support, but is left commented out as this is yet to be
functional.
Bug: 146449535
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I7bf2b82abeca7274f8e2dc69c592ed8303e3fbc6
Enable the two PCIe controllers found on the Dragonboard845c.
Bug: 146449535
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: Ic11f523349ca62f8b1972971f0d41941af9ea842
Add the second PCIe controller and the associated QHP PHY found on
SDM845.
Bug: 146449535
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: Ibd47b697a1167d2b040c08cf698898e84cc4e3fd
Add the GEN2 PCIe controller and PHY found on SDM845.
Bug: 146449535
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I7061bbffa40059c9a454e4af9c63b0059256d71f
Indicate on MTP SDM845 that firmware implements handler to
TLB invalidate erratum SCM call where SAFE sequence is toggled
to achieve optimum performance on real-time clients, such as
display and camera.
Bug: 146449535
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: I27a575e54ffbb0b0bfb78115edef45fc8ff585a4
Add LT9611 DSI to HDMI bridge driver, as well as the
i2s initialization logic.
Bug: 146449535
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[jstultz: Minor build fixups for newer kernels, squashed in
the i2s initialization logic, also squished in and reworked
logic to avoid putting hardware to sleep and breaking hotplug
originally by Amit]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: Ib0bbbf1d86582d9c2ccf1a3c678f1563a26ec04f
Enable blk-crypto's kernel crypto API fallback, so that devices
without inline encryption hardware can continue to use the inlinecrypt
mount option and have file content crypto handled by the block layer.
Bug: 137270441
Test: xfstests, cuttlefish boot and stress test, pixel 4 boot and stress
test
Change-Id: I26376479ee38259b8c35732cb3a1d7e15f9b05a3
Signed-off-by: Satya Tangirala <satyat@google.com>
Changes v5 => v6:
- Blk-crypto's kernel crypto API fallback is no longer restricted to
8-byte DUNs. It's also now separately configurable from blk-crypto, and
can be disabled entirely, while still allowing the kernel to use inline
encryption hardware. Further, struct bio_crypt_ctx takes up less space,
and no longer contains the information needed by the crypto API
fallback - the fallback allocates the required memory when necessary.
- Blk-crypto now supports all file content encryption modes supported by
fscrypt.
- Fixed bio merging logic in blk-merge.c
- Fscrypt now supports inline encryption with the direct key policy, since
blk-crypto now has support for larger DUNs.
- Keyslot manager now uses a hashtable to lookup which keyslot contains
any particular key (thanks Eric!)
- Fscrypt support for inline encryption now handles filesystems with
multiple underlying block devices (thanks Eric!)
- Numerous cleanups
Bug: 137270441
Test: refer to I26376479ee38259b8c35732cb3a1d7e15f9b05a3
Change-Id: I13e2e327e0b4784b394cb1e7cf32a04856d95f01
Link: https://lore.kernel.org/linux-block/20191218145136.172774-1-satyat@google.com/
Signed-off-by: Satya Tangirala <satyat@google.com>
Pull RISC-V fixes from Paul Walmsley:
"Two fixes for RISC-V:
- Clear FP registers during boot when FP support is present, rather
than when they aren't present
- Move the header files associated with the SiFive L2 cache
controller to drivers/soc (where the code was recently moved)"
* tag 'riscv/for-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fixup obvious bug for fp-regs reset
riscv: move sifive_l2_cache.h to include/soc
CSR_MISA is defined in Privileged Architectures' spec: 3.1.1 Machine
ISA Register misa. Every bit:1 indicate a feature, so we should beqz
reset_done when there is no F/D bit in csr_misa register.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
[paul.walmsley@sifive.com: fix typo in commit message]
Fixes: 9e80635619 ("riscv: clear the instruction cache and all registers when booting")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
The commit 9209fb5189 ("riscv: move sifive_l2_cache.c to drivers/soc")
moves the sifive L2 cache driver to driver/soc. It did not move the
header file along with the driver. Therefore this patch moves the header
file to driver/soc
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
[paul.walmsley@sifive.com: updated to fix the include guard]
Fixes: 9209fb5189 ("riscv: move sifive_l2_cache.c to drivers/soc")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Pull iommu fixes from Joerg Roedel:
- Two fixes for VT-d and generic IOMMU code to fix teardown on error
handling code paths.
- Patch for the Intel VT-d driver to fix handling of non-PCI devices
- Fix W=1 compile warning in dma-iommu code
* tag 'iommu-fixes-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/dma: fix variable 'cookie' set but not used
iommu/vt-d: Unlink device if failed to add to group
iommu: Remove device link to group on failure
iommu/vt-d: Fix adding non-PCI devices to Intel IOMMU
Pull i2c fixes from Wolfram Sang:
"Two driver bugfixes, a documentation fix, and a removal of a spec
violation for the bus recovery algorithm in the core"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: fix bus recovery stop mode timing
i2c: bcm2835: Store pointer to bus clock
dt-bindings: i2c: at91: fix i2c-sda-hold-time-ns documentation for sam9x60
i2c: at91: fix clk_offset for sam9x60
Pull thread fixes from Christian Brauner:
"This contains a series of patches to fix CLONE_SETTLS when used with
clone3().
The clone3() syscall passes the tls argument through struct clone_args
instead of a register. This means, all architectures that do not
implement copy_thread_tls() but still support CLONE_SETTLS via
copy_thread() expecting the tls to be located in a register argument
based on clone() are currently unfortunately broken. Their tls value
will be garbage.
The patch series fixes this on all architectures that currently define
__ARCH_WANT_SYS_CLONE3. It also adds a compile-time check to ensure
that any architecture that enables clone3() in the future is forced to
also implement copy_thread_tls().
My ultimate goal is to get rid of the copy_thread()/copy_thread_tls()
split and just have copy_thread_tls() at some point in the not too
distant future (Maybe even renaming copy_thread_tls() back to simply
copy_thread() once the old function is ripped from all arches). This
is dependent now on all arches supporting clone3().
While all relevant arches do that now there are still four missing:
ia64, m68k, sh and sparc. They have the system call reserved, but not
implemented. Once they all implement clone3() we can get rid of
ARCH_WANT_SYS_CLONE3 and HAVE_COPY_THREAD_TLS.
This series also includes a minor fix for the arm64 uapi headers which
caused __NR_clone3 to be missing from the exported user headers.
Unfortunately the series came in a little late especially given that
it touches a range of architectures. Due to the holidays not all arch
maintainers responded in time probably due to their backlog. Will and
Arnd have thankfully acked the arm specific changes.
Given that the changes are straightforward and rather minimal combined
with the fact the that clone3() with CLONE_SETTLS is broken I decided
to send them post rc3 nonetheless"
* tag 'clone3-tls-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
um: Implement copy_thread_tls
clone3: ensure copy_thread_tls is implemented
xtensa: Implement copy_thread_tls
riscv: Implement copy_thread_tls
parisc: Implement copy_thread_tls
arm: Implement copy_thread_tls
arm64: Implement copy_thread_tls
arm64: Move __ARCH_WANT_SYS_CLONE3 definition to uapi headers
Pull HID fix from Jiri Kosina:
"A regression fix for EPOLLOUT handling in hidraw and uhid"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: hidraw, uhid: Always report EPOLLOUT
Pull USB/PHY fixes from Greg KH:
"Here are a number of USB and PHY driver fixes for 5.5-rc6
Nothing all that unusual, just the a bunch of small fixes for a lot of
different reported issues. The PHY driver fixes are in here as they
interacted with the usb drivers.
Full details of the patches are in the shortlog, and all of these have
been in linux-next with no reported issues"
* tag 'usb-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (24 commits)
usb: missing parentheses in USE_NEW_SCHEME
usb: ohci-da8xx: ensure error return on variable error is set
usb: musb: Disable pullup at init
usb: musb: fix idling for suspend after disconnect interrupt
usb: typec: ucsi: Fix the notification bit offsets
USB: Fix: Don't skip endpoint descriptors with maxpacket=0
USB-PD tcpm: bad warning+size, PPS adapters
phy/rockchip: inno-hdmi: round clock rate down to closest 1000 Hz
usb: chipidea: host: Disable port power only if previously enabled
usb: cdns3: should not use the same dev_id for shared interrupt handler
usb: dwc3: gadget: Fix request complete check
usb: musb: dma: Correct parameter passed to IRQ handler
usb: musb: jz4740: Silence error if code is -EPROBE_DEFER
usb: udc: tegra: select USB_ROLE_SWITCH
USB: core: fix check for duplicate endpoints
phy: cpcap-usb: Drop extra write to usb2 register
phy: cpcap-usb: Improve host vs docked mode detection
phy: cpcap-usb: Prevent USB line glitches from waking up modem
phy: mapphone-mdm6600: Fix uninitialized status value regression
phy: cpcap-usb: Fix flakey host idling and enumerating of devices
...
Pull char/misc fix from Greg KH:
"Here is a single fix, for the chrdev core, for 5.5-rc6
There's been a long-standing race condition triggered by syzbot, and
occasionally real people, in the chrdev open() path. Will finally took
the time to track it down and fix it for real before the holidays.
Here's that one patch, it's been in linux-next for a while with no
reported issues and it does fix the reported problem"
* tag 'char-misc-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
chardev: Avoid potential use-after-free in 'chrdev_open()'
Pull staging fixes from Greg KH:
"Here are some small staging driver fixes for 5.5-rc6.
Nothing major here, just some small fixes for a comedi driver, the
vt6656 driver, and a new device id for the rtl8188eu driver.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: rtl8188eu: Add device code for TP-Link TL-WN727N v5.21
staging: comedi: adv_pci1710: fix AI channels 16-31 for PCI-1713
staging: vt6656: set usb_set_intfdata on driver fail.
staging: vt6656: remove bool from vnt_radio_power_on ret
staging: vt6656: limit reg output to block size
staging: vt6656: correct return of vnt_init_registers.
staging: vt6656: Fix non zero logical return of, usb_control_msg
Pull tty/serial fixes from Greg KH:
"Here are two tty/serial driver fixes for 5.5-rc6.
The first fixes a much much reported issue with a previous tty port
link patch that is in your tree, and the second fixes a problem where
the serdev driver would claim ACPI devices that it shouldn't be
claiming.
Both have been in linux-next for a while with no reported issues"
* tag 'tty-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serdev: Don't claim unsupported ACPI serial devices
tty: always relink the port
Pull block fixes from Jens Axboe:
"A few fixes that should go into this round.
This pull request contains two NVMe fixes via Keith, removal of a dead
function, and a fix for the bio op for read truncates (Ming)"
* tag 'block-5.5-2020-01-10' of git://git.kernel.dk/linux-block:
nvmet: fix per feat data len for get_feature
nvme: Translate more status codes to blk_status_t
fs: move guard_bio_eod() after bio_set_op_attrs
block: remove unused mp_bvec_last_segment
Pull io_uring fix from Jens Axboe:
"Single fix for this series, fixing a regression with the short read
handling.
This just removes it, as it cannot safely be done for all cases"
* tag 'io_uring-5.5-2020-01-10' of git://git.kernel.dk/linux-block:
io_uring: remove punt of short reads to async context
Pull MTD fixes from Miquel Raynal:
"MTD:
- sm_ftl: Fix NULL pointer warning.
Raw NAND:
- Cadence: fix compile testing.
- STM32: Avoid locking.
Onenand:
- Fix several sparse/build warnings.
SPI-NOR:
- Add a flag to fix interaction with Micron parts"
* tag 'mtd/fixes-for-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: spi-nor: Fix the writing of the Status Register on micron flashes
mtd: sm_ftl: fix NULL pointer warning
mtd: onenand: omap2: Pass correct flags for prep_dma_memcpy
mtd: onenand: samsung: Fix iomem access with regular memcpy
mtd: onenand: omap2: Fix errors in style
mtd: cadence: Fix cast to pointer from integer of different size warning
mtd: rawnand: stm32_fmc2: avoid to lock the CPU bus
Pull sound fixes from Takashi Iwai:
"A few piled ASoC fixes and usual HD-audio and USB-audio fixups. Some
of them are for ASoC core error-handling"
* tag 'sound-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda: enable regmap internal locking
ALSA: hda/realtek - Add quirk for the bass speaker on Lenovo Yoga X1 7th gen
ALSA: hda/realtek - Set EAPD control to default for ALC222
ALSA: usb-audio: Apply the sample rate quirk for Bose Companion 5
ALSA: hda/realtek - Add new codec supported for ALCS1200A
ASoC: Intel: boards: Fix compile-testing RT1011/RT5682
ASoC: SOF: imx8: Fix dsp_box offset
ASoC: topology: Prevent use-after-free in snd_soc_get_pcm_runtime()
ASoC: fsl_audmix: add missed pm_runtime_disable
ASoC: stm32: spdifrx: fix input pin state management
ASoC: stm32: spdifrx: fix race condition in irq handler
ASoC: stm32: spdifrx: fix inconsistent lock state
ASoC: core: Fix access to uninitialized list heads
ASoC: soc-core: Set dpcm_playback / dpcm_capture
ASoC: SOF: imx8: fix memory allocation failure check on priv->pd_dev
ASoC: SOF: Intel: hda: hda-dai: fix oops on hda_link .hw_free
ASoC: SOF: fix fault at driver unload after failed probe
Pull thermal fix from Daniel Lezcano:
"Fix backward compatibility with old DTBs on QCOM tsens (Amit
Kucheria)"
* tag 'thermal-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
drivers: thermal: tsens: Work with old DTBs
Pull power management fixes from Rafael Wysocki:
"Prevent the cpufreq-dt driver from probing Tegra20/30 (Dmitry
Osipenko) and prevent the Intel RAPL power capping driver from
crashing during CPU initialization due to a NULL pointer dereference
if the processor model in use is not known to it (Harry Pan)"
* tag 'pm-5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap: intel_rapl: add NULL pointer check to rapl_mmio_cpu_online()
cpufreq: dt-platdev: Blacklist NVIDIA Tegra20 and Tegra30 SoCs
QCOM_SCM is needed to be able to boot on db845c and is normally
selected by modules such as QCOM_RMTFS_MEM.
This dependency got accidentally dropped before the holidays
when I moved the QCOM_RMTFS_MEM to a module instead of a gki
built in.
Signed-off-by: John Stultz <john.stultz@linaro.org>
Bug: 146449535
Change-Id: Icf9b6fec1d45247ee67e50d6c13c6e410e3d8c12
The existing implementation for the get_feature admin-cmd does not
use per-feature data len. This patch introduces a new helper function
nvmet_feat_data_len(), which is used to calculate per feature data len.
Right now we only set data len for fid 0x81 (NVME_FEAT_HOST_ID).
Fixes: commit e9061c3978 ("nvmet: Remove the data_len field from the nvmet_req struct")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Amit Engel <amit.engel@dell.com>
[endiness, naming, and kernel style fixes]
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Decode interrupted command and not ready namespace nvme status codes to
BLK_STS_TARGET. These are not generic IO errors and should use a non-path
specific error so that it can use the non-failover retry path.
Reported-by: John Meneghini <John.Meneghini@netapp.com>
Cc: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
hidraw and uhid device nodes are always available for writing so we should
always report EPOLLOUT and EPOLLWRNORM bits, not only in the cases when
there is nothing to read.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: be54e7461f ("HID: uhid: Fix returning EPOLLOUT from uhid_char_poll")
Fixes: 9f3b61dc1d ("HID: hidraw: Fix returning EPOLLOUT from hidraw_poll")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull pstore fix from Kees Cook:
"Cengiz Can forwarded a Coverity report about more problems with a rare
pstore initialization error path, so the allocation lifetime was
rearranged to avoid needing to share the kfree() responsibilities
between caller and callee"
* tag 'pstore-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
pstore/ram: Regularize prz label allocation lifetime
Pull drm fixes from Dave Airlie:
"Pre-LCA pull request I'm not sure how things will look next week,
myself and Daniel are at LCA and I'm speaking quite late, so if I get
my talk finished I'll probably process fixes.
This week has a bunch of i915 fixes, some amdgpu fixes, one sun4i, one
core MST, and one core fb_helper fix. More details below:
core:
- mst Fix NO_STOP_BIT bit offset (Wayne)
fb_helper:
- fb_helper: Fix bits_per_pixel param set behavior to round up
(Geert)
sun4i:
- Fix RGB_DIV clock min divider on old hardware (Chen-Yu)
amdgpu:
- Stability fix for raven
- Reduce pixel encoding to if max clock is exceeded on HDMI to allow
additional high res modes
- enable DRIVER_SYNCOBJ_TIMELINE for amdgpu
i915:
- Fix GitLab issue #446 causing GPU hangs: Do not restore invalid RS
state
- Fix GitLab issue #846: Restore coarse power gating that was
disabled by initial RC66 context corruption security fixes.
- Revert f6ec948309 ("drm/i915: extend audio CDCLK>=2*BCLK
constraint to more platforms") to avoid screen flicker
- Fix to fill in unitialized uabi_instance in virtual engine uAPI
- Add two missing W/As for ICL and EHL"
* tag 'drm-fixes-2020-01-10' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: add DRIVER_SYNCOBJ_TIMELINE to amdgpu
drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded
Revert "drm/amdgpu: Set no-retry as default."
drm/fb-helper: Round up bits_per_pixel if possible
drm/sun4i: tcon: Set RGB DCLK min. divider based on hardware model
drm/i915/dp: Disable Port sync mode correctly on teardown
drm/i915: Add Wa_1407352427:icl,ehl
drm/i915: Add Wa_1408615072 and Wa_1407596294 to icl,ehl
drm/i915/gt: Restore coarse power gating
drm/i915/gt: Do not restore invalid RS state
drm/i915: Limit audio CDCLK>=2*BCLK constraint back to GLK only
drm/i915/gt: Mark up virtual engine uabi_instance
drm/dp_mst: correct the shifting in DP_REMOTE_I2C_READ
Pull rdma fixes from Jason Gunthorpe:
"First RDMA subsystem updates for 5.5-rc. A very small set of fixes,
most people seem to still be recovering from December!
Five small driver fixes:
- Fix error flow with MR allocation in bnxt_re
- An errata work around for bnxt_re
- Misuse of the workqueue API in hfi1
- Protocol error in hfi1
- Regression in 5.5 related to the mmap rework with i40iw"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
i40iw: Remove setting of VMA private data and use rdma_user_mmap_io
IB/hfi1: Adjust flow PSN with the correct resync_psn
IB/hfi1: Don't cancel unused work item
RDMA/bnxt_re: Fix Send Work Entry state check while polling completions
RDMA/bnxt_re: Avoid freeing MR resources if dereg fails
Pull GPIO fixes from Linus Walleij:
"Here is a host of GPIO fixes for the v5.5 series. The ACPI fix is
especially important, see summary below and in the commit for details:
- Select GPIOLIB_IRQCHIP on the max77620 GPIO expander
- Fix context restore in the Zynq driver
- Create a new ACPI quirk handler for disabling wakeups on
problematic hardware.
- Fix a coding style issue on the mockup device"
* tag 'gpio-v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpiolib: acpi: Add honor_wakeup module-option + quirk mechanism
gpiolib: acpi: Turn dmi_system_id table into a generic quirk table
gpio: zynq: Fix for bug in zynq_gpio_restore_context API
gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP
gpio: mockup: fix coding style
Pull pin control fixes from Linus Walleij:
"Two fixes for pin control, not much to say about it, it's just regular
driver fixes:
- Fix erroneous shift in the Meson driver
- Make Lochnagar select the GPIOLIB Kconfig symbol"
* tag 'pinctrl-v5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: meson: Fix wrong shift value when get drive-strength
pinctrl: lochnagar: select GPIOLIB
Pull input fixes from Dmitry Torokhov:
"Just a few small fixups here"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: imx_sc_key - only take the valid data from SCU firmware as key state
Input: add safety guards to input_set_keycode()
Input: input_event - fix struct padding on sparc64
Input: uinput - always report EPOLLOUT
The I2C specification states that tsu:sto for standard mode timing must
be at minimum 4us. Pictographically, this is:
SCL: ____/~~~~~~~~~
SDA: _________/~~~~
->| |<- 4us minimum
We are currently waiting 2.5us between asserting SCL and SDA, which is
in violation of the standard. Adjust the timings to ensure that we meet
what is stipulated as the minimum timings to ensure that all devices
correctly interpret the STOP bus transition.
This is more important than trying to generate a square wave with even
duty cycle.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Micron flashes do not support 16 bit writes on the Status Register.
According to micron datasheets, when using the Write Status Register
(01h) command, the chip select should be driven LOW and held LOW until
the eighth bit of the last data byte has been latched in, after which
it must be driven HIGH. If CS is not driven HIGH, the command is not
executed, flag status register error bits are not set, and the write enable
latch remains set to 1. This fixes the lock operations on micron flashes.
Reported-by: John Garry <john.garry@huawei.com>
Fixes: 39d1e3340c ("mtd: spi-nor: Fix clearing of QE bit on lock()/unlock()")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Tested-by: John Garry <john.garry@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
With gcc -O3, we get a new warning:
In file included from arch/arm64/include/asm/processor.h:28,
from drivers/mtd/sm_ftl.c:8:
In function 'memset',
inlined from 'sm_read_sector.constprop' at drivers/mtd/sm_ftl.c:250:3:
include/linux/string.h:411:9: error: argument 1 null where non-null expected [-Werror=nonnull]
return __builtin_memset(p, c, size);
>From all I can tell, this cannot happen (the function is called
either with a NULL buffer or with a -1 block number but not both),
but adding a check makes it more robust and avoids the warning.
Fixes: mmtom ("init/Kconfig: enable -O3 for all arches")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
The commit converting the driver to DMAengine was missing the flags for
the memcpy prepare call.
It went unnoticed since the omap-dma driver was ignoring them.
Fixes: 3ed6a4d1de (" mtd: onenand: omap2: Convert to use dmaengine for memcp")
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: H. Nikolaus Schaller <hns@goldelico.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
