Convert driver from DT_FLASH_BASE_ADDRESS and DT_FLASH_DEV_NAME to use
DT_REG_ADDR and DT_INST_LABEL.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
For a flash driver DT_DRV_COMPAT should be the compatible for the flash
controller and not the soc-nv-flash. Change to driver to use the flash
controllers compatible and get the soc-nv-flash properties as a child of
that controller.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
For a flash driver DT_DRV_COMPAT should be the compatible for the flash
controller and not the soc-nv-flash. Change to driver to use the flash
controllers compatible and get the soc-nv-flash properties as a child of
that controller.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
For a flash driver DT_DRV_COMPAT should be the compatible for the flash
controller and not the soc-nv-flash. Change to driver to use the flash
controllers compatible and get the soc-nv-flash properties as a child of
that controller.
The soc_flash_mcux supports several possible compatible so handle that
as part of how we set DT_DRV_COMPAT.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
For a flash driver DT_DRV_COMPAT should be the compatible for the flash
controller and not the soc-nv-flash. Change to driver to use the flash
controllers compatible and get the soc-nv-flash properties as a child of
that controller.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The 32 KiBy bulk erase command was being invoked without respecting
the flag that indicates it's supported. Make the invocation
conditional.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Use the UNALIGNED_GET() macro instead of the
flash_sam0_read_unaigned_u32() function to ensure
word alignment of the source address.
Signed-off-by: Steven Slupsky <sslupsky@gmail.com>
drivers: flash: sam0: fix whitespace
Fix checkpass whitespace error.
Signed-off-by: Steven Slupsky <sslupsky@gmail.com>
Update `flash` shell commands to take an optional device argument,
instead of using the chosen flash device.
Signed-off-by: Ivo Clarysse <ivo@bcdevices.com>
Replace DT_FLASH_WRITE_BLOCK_SIZE with new DT_INST_NODE_HAS_PROP and
DT_INST_PROP macro as we phase out DT_FLASH define usage.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Replace DT_FLASH_DEV_BASE_ADDRESS with new DT_REG_ADDR/DT_INST macro as
we phase out DT_FLASH define usage.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Replace use of DT_FLASH_DEV_NAME with DT_INST_LABEL in drivers as we
want to phase out DT_FLASH_DEV_NAME.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The duration is used in math with the uptime clock, not as a timeout.
Correct value expression and rename to clarify units.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Use valid stm32 flash driver compatibles instead of flash
area compatible.
For 'write_block_size' property, use reference to soc-nv-flash.
fixes#23997
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
When enabled, instead of erasing entire flash page at once, page will
be erased in defined time slices. Erasing single page stalls CPU
for significant time share (~80ms) and partial erase divides the
operation in to the shorter time periods, resuming CPU operation in
meantime and enabling better scheduling of time sensitive operations.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
Delay radio abort called in the flash driver to emulate the
behavior of pre-empt timeout in Bluetooth LL split
controller. Without this, the driver aborted radio events
in its reserved time space.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Kernel timeouts have always been a 32 bit integer despite the
existence of generation macros, and existing code has been
inconsistent about using them. Upcoming commits are going to make the
timeout arguments opaque, so fix things up to be rigorously correct.
Changes include:
+ Adding a K_TIMEOUT_EQ() macro for code that needs to compare timeout
values for equality (e.g. with K_FOREVER or K_NO_WAIT).
+ Adding a k_msleep() synonym for k_sleep() which can continue to take
integral arguments as k_sleep() moves away to timeout arguments.
+ Pervasively using the K_MSEC(), K_SECONDS(), et. al. macros to
generate timeout arguments.
+ Removing the usage of K_NO_WAIT as the final argument to
K_THREAD_DEFINE(). This is just a count of milliseconds and we need
to use a zero.
This patch include no logic changes and should not affect generated
code at all.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Convert older DT_INST_ macro use in atmel sam0 drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Convert older DT_INST_ macro use in openisa drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Convert older DT_INST_ macro use in atmel sam drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Convert older DT_INST_ macro use in STM32 drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Convert older DT_INST_ macro use in silab drivers to the new
include/devicetree.h DT_INST macro APIs.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
In the default configuration of the stm32g4 is the dual bank mode.
In dual bank mode, the flash is split into two banks with 256k each.
The erase pages have a range form 0 to 127, where each page has 2k.
If one wants to erase an area above 256k, the driver has to switch
to bank 2 befor erasing. Otherwise it will erase the page moulo 127.
Signed-off-by: Alexander Wachter <alexander.wacher@leica-geosystems.com>
This commit introduces some logs in the stm32 flash implementation.
Thith the logs it is easier to locate problems when they arrise.
Signed-off-by: Alexander Wachter <alexander.wacher@leica-geosystems.com>
Don't use DT_INST_0_SOC_NV_FLASH_LABEL as device name.
Use DT_FLASH_DEV_NAME instead
Fixes#23678
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Coverity doesn't invoke the build for this module with a configuration
that provides a non-zero delay for entering or releasing deep power
down, so it sees a check that a value known to be non-negative
magically became negative without being touched, and so screams about
dead code.
Refactor to make the adjustments unconditional which has the same
effect in any reasonable level of optimization while making it
slightly less obvious that the value may not change.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This reverts commit 8739517107.
Pull Request #23437 was merged by mistake with an invalid manifest.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Replace all occurences of BUILD_ASSERT_MSG() with BUILD_ASSERT()
as a result of merging BUILD_ASSERT() and BUILD_ASSERT_MSG().
Signed-off-by: Oleg Zhurakivskyy <oleg.zhurakivskyy@intel.com>
Convert driver to use DT_INST_ defines.
Removed DT_FLASH_DEV fixup macros, except DT_FLASH_DEV_NAME
used in applications.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
There is timeout guard, in form of k_sem_get within work_in_time_slice,
used to detect if flash operation takes longer than expected maximum
and to return error code in such case. The processing of this timeout
is missing cancellation of scheduled ticker job that would attempt to
perform another operation. This causes problem as context for ticker
is created, on stack, within erase/write_in_timeslice which
would conclude when timeout occurs, folding the stack in process.
Signed-off-by: Dominik Ermel <dominik.ermel@nordicsemi.no>
I think people might be reading differences into 'if' and 'depends on'
that aren't there, like maybe 'if' being needed to "hide" a symbol,
while 'depends on' just adds a dependency.
There are no differences between 'if' and 'depends on'. 'if' is just a
shorthand for 'depends on'. They work the same when it comes to creating
implicit menus too.
The way symbols get "hidden" is through their dependencies not being
satisfied ('if'/'depends on' get copied up as a dependency on the
prompt).
Since 'if' and 'depends on' are the same, an 'if' with just a single
symbol in it can be replaced with a 'depends on'. IMO, it's best to
avoid 'if' there as a style choice too, because it confuses people into
thinking there's deep Kconfig magic going on that requires 'if'.
Going for 'depends on' can also remove some nested 'if's, which
generates nicer symbol information and docs, because nested 'if's really
are so simple/dumb that they just add the dependencies from both 'if's
to all symbols within.
Replace a bunch of single-symbol 'if's with 'depends on' to despam the
Kconfig files a bit and make it clearer how things work. Also do some
other minor related dependency refactoring.
The replacement isn't complete. Will fix up the rest later. Splitting it
a bit to make it more manageable.
(Everything above is true for choices, menus, and comments as well.)
Detected by tweaking the Kconfiglib parsing code. It's impossible to
detect after parsing, because 'if' turns into 'depends on'.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
The SAM flash driver was developed for the SAME70 SoCs and hasn't ever
been validated on the other SAM families (SAM3X, SAM4S). If we try and
build on one of the other SoC families we get build errors. So limit it
to just SAME70 for now.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Most JEDEC NOR flash devices uses not only typical SPI mode
(MISO,MOSI,SCK and CS), but also QSPI mode (IO0,IO1,IO2,IO3,SCK and CS).
QSPI mode uses more data lines and as a result provide higher
throughput. If this were not enough, Nordic chips provide
hardware acceleration for read/write/erase functions, what
gives significant performance boost.
It does a lot of things "behind the scene", i.e when user has written
some data to the flash and would like to read them back, it has to wait
until the flash is ready by reading WIP bit in Status Register.
This driver does it automatically.
Signed-off-by: Kamil Lazowski <Kamil.Lazowski@nordicsemi.no>
Remove soc/arm/st_stm32/stm32YY/flash_registers.h files.
Change register accesses in stm32 flash drivers to use FLASH_TypeDef
from modules/hal/stm32/stm32cube/stm32YYxx/soc/stm32xxxxxx.h.
Fixes#16235
Signed-off-by: Sarvesh Patkar <psarvesh314@gmail.com>
The build infrastructure should not be adding the drivers subdirectory
to the include path. Fix the legacy uses that depended on that
addition.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
The build infrastructure should not be adding the drivers subdirectory
to the include path. Fix the legacy uses that depended on that
addition.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
After startup the native_posix flash was filed by 0x00 instead
of 0xff, which is not coherent with erased byte value which
is 0xff for the native_posix target.
Such inconsistent behavior makes for instance running
a storage system designed(or configured) for a flash device
with 0xff as erased byte values problematic.
This patch makes flash erased after new flash device file creation.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Patch introduce references to LittleFS instead of NFFS where it
was suitable. In other places NFFS mentions were removed
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
According to NRF product specifications the smallest write unit is
32-bits. Added parameter 'CONFIG_EMULATE_ONE_BYTE_WRITE_ACCESS'
which allows one byte flash write using more complex operation.
Signed-off-by: Adam Kondraciuk <adam.kondraciuk@nordicsemi.no>
Grouped all nRF driver sub-option under SOC_FLASH_NRF
menuconfig.
This makes menuconfig cleaner.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Following update of stm32wb package, FLASH_FLAG_SR_ERROR
has been renamed to FLASH_FLAG_SR_ERRORS.
Update driver to fix compilation issue.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
The amount of lock regions differs between different sam0 MCUs.
saml10: 2
saml11: 4
samd2x: 16
saml2x: 16
samd5x: 32
ASF does not provide a definition for this, so create a new one
in dts.
Signed-off-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
This adds support for the flash peripheral found in the SAME5x/SAMD5x
line of MCUs.
The peripheral is very simmilar to the one found on SAMD2x with only
a few register names changed.
Signed-off-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
In STM32 flash driver, don't use semaphore if multithreading
isn't defined.
If multithreading isn't defined, a call to sem_give function
generates a hardware fault exception.
Signed-off-by: Benoit Leforestier <benoit.leforestier@gmail.com>
The current configuration causes the STM32 flash support always to be
built, even if an unrelated flash driver, by example the SPI_NOR driver
is selected.
This behaviour gets especially problematic (build failure) if the flash
hardware of the given MCU is not supported (e.g. STM32F2).
The suggested change should ensure that STM32 flash support only is
built when it actually is selected.
Signed-off-by: Marco Peter <marco@peter-net.ch>
NRF devices hardware has flash protection which doesn't
reflect flash API definition well. So fare protection
mechanism was emulated by the software and the driver deals
with hardware flash protection on its own.
Recent change to protection behavior requirement allows
to remove flash API behavior emulation at all.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Remove leading/trailing blank lines in .c, .h, .py, .rst, .yml, and
.yaml files.
Will avoid failures with the new CI test in
https://github.com/zephyrproject-rtos/ci-tools/pull/112, though it only
checks changed files.
Move the 'target-notes' target in boards/xtensa/odroid_go/doc/index.rst
to get rid of the trailing blank line there. It was probably misplaced.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Extended flash simulator for posix architecture to read/write data
from a binary file on the host file system.
Further enable the flash simulator by default on native_posix(_64)
boards and updated the documentation accordingly.
Signed-off-by: Jan Van Winkel <jan.van_winkel@dxplore.eu>
Bool symbols implicitly default to 'n'.
A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though.
Also replace some
config
prompt "foo"
bool/int
with the more common shorthand
config
bool/int "foo"
See the 'Style recommendations and shorthands' section in
https://docs.zephyrproject.org/latest/guides/kconfig/index.html.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
z_vrfy_flash_get_page_count defined as a function prototype in place of
a real function due to a stray semicolon.
Signed-off-by: Andrei Gansari <andrei.gansari@nxp.com>
So fare all nRF flash memories had flash base address at 0.
nRF flash driver was implemented in such way that it
really used absolute addresses, while convention are relative
addresses (for flash_map as well), which was not visible as start
address offset was 0.
It will become visible on nRF53 which has networking flash
with non-zero base address.
This patch switch nRF flash driver to use relative addresses for flash.
UICR absolute addressing is kept.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
The smallest region that can be erashed is one sector, so setting
SPI_NOR_FLASH_LAYOUT_PAGE_SIZE=2048 will fail at runtime when the
flash page API is used to erase a single (or misaligned) page. Add a
compile-time check that the requested layout page size is erasable.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Add internal API to enter and exit deep power-down mode. Add Kconfig
option to return to DPD whenever device is not active.
When device power management becomes more mature it should be possible
to implement it, which would allow use of DPD without having to enter
and exit DPD between consecutive transactions.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Convert the LOCK/UNLOCK macros to acquire/release functions in
preparation for extending those steps to include power management.
Also commit to always allocating a semophore, and use a more clean
way of conditionalizing the operations.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Some stm32f4 1MB SoCs support optional Dual Bank configuration.
This is not yet supported by stm32f4 driver, so report an
error when configuration is detected
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
On 2MB parts, on sector 12 and above SNB is offset by 4.
Fixes#20016
Signed-off-by: Florian Vaussard <florian.vaussard@gmail.com>
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Use this short header style in all Kconfig files:
# <description>
# <copyright>
# <license>
...
Also change all <description>s from
# Kconfig[.extension] - Foo-related options
to just
# Foo-related options
It's clear enough that it's about Kconfig.
The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)
git ls-files '*Kconfig*' | \
xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Clean up space errors and use a consistent style throughout the Kconfig
files. This makes reading the Kconfig files more distraction-free, helps
with grepping, and encourages the same style getting copied around
everywhere (meaning another pass hopefully won't be needed).
Go for the most common style:
- Indent properties with a single tab, including for choices.
Properties on choices work exactly the same syntactically as
properties on symbols, so not sure how the no-indentation thing
happened.
- Indent help texts with a tab followed by two spaces
- Put a space between 'config' and the symbol name, not a tab. This
also helps when grepping for definitions.
- Do '# A comment' instead of '#A comment'
I tweaked Kconfiglib a bit to find most of the stuff.
Some help texts were reflowed to 79 columns with 'gq' in Vim as well,
though not all, because I was afraid I'd accidentally mess up
formatting.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Defining a symbol with 'menuconfig' just tells the menuconfig to display
any dependent symbols that immediately follow it in a separate menu.
'menuconfig' has no effect on symbol values.
Making a symbol that doesn't have any dependent symbols after it a
'menuconfig' should be avoided, because then you end up with an empty
menu, which is shown as e.g.
[*] Enable foo ---
This is how it would be shown if there were children but they all
happened to be invisible as well.
With a regular 'config', it turns into
[*] Enable foo
Change all pointless 'menuconfig's to 'config's.
See the section on 'menuconfig' on the Kconfig - Tips and Best Practices
page as well.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Unused since commit 2a590d3fa5 ("drivers/spi_nor: remove configurability
of page/sector/block sizes"). The help texts already say they're unused,
but it probably doesn't hurt to remove them as well.
Found with a script.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
Modifications in 'is_regular_addr_valid()' function which didn't work
properly when flash base address was different than 0x00000000.
Added calculating address bounds with respect to flash base address.
Signed-off-by: Adam Kondraciuk <adam.kondraciuk@nordicsemi.no>
These calls are not accessible in CI test, nor do they get built on
common platforms (in at least one case I found a typo which proved the
code was truly unused). These changes are blind, so live in a
separate commit. But the nature of the port is mechanical, all other
syscalls in the system work fine, and any errors should be easily
corrected.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
Variable pages_per_bank has been introduced to ease page erase
in dual bank configurations. This has been implemented using
FLASH_OPTR_DUALBANK definition.
It happen that this was not taking into account L4+ series that
use FLASH_OPTR_DBANK instead of FLASH_OPTR_DUALBANK. This lead
to compilation issue for this driver in case of L4+ series.
So, this patch is adding the support of FLASH_OPTR_DBANK definition.
Besides, FLASH_OPTR_DUALBANK (as FLASH_OPTR_DBANK) are actually
defining availability of an option byte to configure use of Dual
Bank. So besides of its definition, its value in flash OPTR register
should be checked to ensure Dual Bank configuration is used.
This patch is taking this into account by adding the check of this
byte. Error -ENOTSUP is returned in case Single Bank is configured
since it has not be validated yet (in case Dual Bank is possible but
not configured).
Fixes#18246 for nucleo_l4r5zi
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
FLASH_NATIVE_POSIX is defined in drivers/flash/Kconfig.native_posix,
which is source'd within an 'if FLASH' in drivers/flash/Kconfig.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
FLASH_SIMULATOR is defined in drivers/flash/Kconfig.simulator, which is
source'd within an 'if FLASH' in drivers/flash/Kconfig.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
SPI NOR devices require that writes be performed within only one page at
a time. There is no such limitation on reads. Remove the code that
forced reads to be performed in 256-byte chunks.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The code failed to increment the address after completing a partial
write, causing writes that cross a page boundary overwrite at a page
level.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
This commit fixes following issues in printf formatting used by flash
drivers:
- cast values of type off_t to long to remove warnings generated when
compiling with Newlib.
- use 'z' modifier (as in "%zu") to print values of type size_t
- prefix all hex numbers with '0x'
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
This board and SoC was discontinued some time ago and is currently not
maintained in the zephyr tree.
Remove all associated configurations and variants from the tree.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Up to now, the only SOC that was supported in the STM32L496 series was
STM32L496XG with flash of 1MB. With the recent support of STM32L496XE,
this implementation is not correct. This patch adds support for the
other SOCs that come with flashes of 512KB and 256KB.
Signed-off-by: Ioannis Konstantelias <ikonstadel@gmail.com>
The previous code limited the length of a write to the size of a page,
but did not check whether the starting position was far enough into the
page that the write would still cross a page boundary.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
This was always intended to be a bytestring rather than an array, but
full support was missing. Since that has been addressed switch it to
the preferred format.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The driver historically used the erase block size (64 KiBy) as the page
size. There are other viable "sector" sizes, and for some applications
this one may be too large. Allow the application to specify the desired
flash page size.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
The JEDEC API defines the hardware page, sector, and block sizes.
Deprecate the Kconfig settings, remove the `erase-size-block` property,
and add `has-be32k` to indicate that 32K-byte erase is supported.
Rework the driver to use the constants instead of configured values.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Flash size calculation was don with assumption that flash page size
is always 1 KB and flash size was parameterized with such granularity.
This patch correct this bug.
Flash pages number under statistic can't be calculated via preprocessor
anymore - thus are parameterized via Kconfig.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
It Need to start using DT_FLASH_SIM_xxx labels after sim_flash was
un-chosen as zephyr,flash.
Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
Add flash support for STM32G0X SoC series.
Signed-off-by: Philippe Retornaz <philippe@shapescale.com
Signed-off-by: Francois Ramu <francois.ramu@st.com>
flash_erase cannot erase a page from the STM32xx SOC flash. It seems
that the erase wait time is not enough and against to what the SOC's
datasheet states. As a result this patch doubles the wait time.
Signed-off-by: Ioannis Konstantelias <ikonstadel@gmail.com>
