Samsung ARM/ARM64 SoCs (except legacy S5PV210) are also expected not to
bring any new dtbs_check warnings. In fact this have been already
enforced and tested since few release.
Cc: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230712084131.127982-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Samsung ARM/ARM64 SoCs (including legacy S3C64xx and S5PV210) are also
expected not to bring any new dtbs_check warnings. In fact this have
been already enforced and tested since few release.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20230723131924.78190-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Some SoC platforms require that commits must not bring any new
dtbs_check warnings. Maintainers of such platforms usually have some
automation set, so any new warning will be spotted sooner or later.
Worst case: they run the tests themselves. Document requirements for
such platforms, so contributors can expect their patches being dropped
or ignored, if they bring new warnings for existing boards.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230723131924.78190-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
In the current code, devres_release_all() only gets called if the device
has a bus and has been probed.
This leads to issues when using bus-less or driver-less devices where
the device might never get freed if a managed resource holds a reference
to the device. This is happening in the DRM framework for example.
We should thus call devres_release_all() in the device_del() function to
make sure that the device-managed actions are properly executed when the
device is unregistered, even if it has neither a bus nor a driver.
This is effectively the same change than commit 2f8d16a996 ("devres:
release resources on device_del()") that got reverted by commit
a525a3ddea ("driver core: free devres in device_release") over
memory leaks concerns.
This patch effectively combines the two commits mentioned above to
release the resources both on device_del() and device_release() and get
the best of both worlds.
Fixes: a525a3ddea ("driver core: free devres in device_release")
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230720-kunit-devm-inconsistencies-test-v3-3-6aa7e074f373@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Platform devices show some inconsistencies with how devm resources are
released when the device has been probed and when it hasn't.
In particular, we can register device-managed actions no matter if the
device has be bound to a driver or not, but devres_release_all() will
only be called if it was bound to a driver or if there's no reference
held to it anymore.
If it wasn't bound to a driver and we still have a reference,
devres_release_all() will never get called. This is surprising
considering that if the driver isn't bound but doesn't have any
reference to it anymore, that function will get called, and if it was
bound to a driver but still has references, that function will get
called as well.
Even if that case is fairly unusual, it can easily lead to memory leaks.
The plan is, with the next patch, to make it consistent and enforce that
devres_release_all() is called no matter what situation we're in. For
now, it just tests for the current behaviour and skips over the
inconsistencies.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230720-kunit-devm-inconsistencies-test-v3-2-6aa7e074f373@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The root devices show some odd behaviours compared to regular "bus" devices
that have been probed through the usual mechanism, so let's create kunit
tests to exercise those paths and odd cases.
It's not clear whether root devices are even allowed to use device
managed resources, but the fact that it works in some cases but not
others like shown in that test suite shouldn't happen either way: we
want to make it consistent and documented.
These tests will (after the following patches) ensure that consistency
and effectively document that it's allowed.
If it ever turns out to be a bad idea, we can always roll back and
modify the tests then.
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20230720-kunit-devm-inconsistencies-test-v3-1-6aa7e074f373@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the kernfs_iattr_rwsem was introduced a case was missed.
The update of the kernfs directory node child count was also protected
by the kernfs_rwsem and needs to be included in the change so that the
child count (and so the inode n_link attribute) does not change while
holding the rwsem for read.
Fixes: 9caf696142 ("kernfs: Introduce separate rwsem to protect inode attributes.")
Cc: stable <stable@kernel.org>
Signed-off-by: Ian Kent <raven@themaw.net>
Reviewed-By: Imran Khan <imran.f.khan@oracle.com>
Acked-by: Miklos Szeredi <mszeredi@redhat.com>
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Eric Sandeen <sandeen@sandeen.net>
Link: https://lore.kernel.org/r/169128520941.68052.15749253469930138901.stgit@donald.themaw.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Document that changes intended for a specific stable series have to be
in all newer series still maintained, as otherwise users would run into
regressions.
CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/ddb5cb0d6b7aa4ef31642cd9657a0fb53d79cddb.1691219455.git.linux@leemhuis.info
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* various fine tuning to the text that cleans up rough edges the three
previous preparatory patches left behind to keep the diffs simpler
* s/Linus' tree/mainline/g, as that's the term more commonly used and
known
* create a short intro for the three submission options and streamline
the explanation when to use which of them
* fix a >= vs <= thinko in an example to make it more straight forward
* there were two blank lines before some sub-headings and just one
before others; use the former style everywhere
CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/e1960a70acae2c2f18b838aee9f8bf6055fae89b.1691219455.git.linux@leemhuis.info
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Separate the description for option 1 and the examples how to use it by
making the latter an indented unordered list.
No text changes.
CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/59deaabfabf0629d7cf2a52b196cec19d1f9ec47.1691219455.git.linux@leemhuis.info
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move the short description about when to use which of the submission
options to the top of the section, as it currently sits somewhat odd in
the middle between option 3 and examples of option 1.
Also move the examples of Option 1 into the section describing it (which
in the diff looks like option 2 and 3 are moving down).
No text changes, just moving it around.
CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/16f2377ee40dd7dfa146727fcbe7d1ebccf5b5be.1691219455.git.linux@leemhuis.info
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* replace a needless sub-heading with a short intro sentence
* make "Following the submission" a proper sub-section with a headline
without changing the text of the section
CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/0737676f951050b2ec39e1662ffea37d77ef0bec.1691219455.git.linux@leemhuis.info
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The devm_nvmem_register() function returns error pointers. It never
returns NULL. Update the checks accordingly.
Fixes: 0969001569 ("misc: microchip: pci1xxxx: Add support to read and write into PCI1XXXX OTP via NVMEM sysfs")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/043df330-222b-4c2c-ae19-ed2f731bfe0b@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need to call the dev_err_probe() function directly to print
a custom message when handling an error from platform_get_irq_byname()
function as it is going to display an appropriate error message
in case of a failure.
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20230807093010.2112302-1-ruanjinjie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The existing use of match_string() caused it to reject 'echo foo' due
to the implicitly appended newline, which was somewhat ergonomically
awkward and inconsistent with typical sysfs behavior. Using the
__sysfs_* variant instead provides more convenient and consistent
linefeed-agnostic behavior.
Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Fixes: c6807970c3 ("soc: aspeed: Add UART routing support")
Reviewed-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230628083735.19946-2-zev@bewilderbeest.net
Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20230810122941.231085-1-joel@jms.id.au
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Clean up DT includes and remove unneeded platform_set_drvdata() calls
across reset drivers, add support for the Versal NET platform to the
zynqmp driver, and let the hisilicon driver use dev_err_probe().
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Merge tag 'reset-for-v6.6' of git://git.pengutronix.de/pza/linux into soc/drivers
Reset controller updates for v6.6
Clean up DT includes and remove unneeded platform_set_drvdata() calls
across reset drivers, add support for the Versal NET platform to the
zynqmp driver, and let the hisilicon driver use dev_err_probe().
* tag 'reset-for-v6.6' of git://git.pengutronix.de/pza/linux:
reset: ti: syscon: remove unneeded call to platform_set_drvdata()
reset: zynqmp: removed unneeded call to platform_set_drvdata()
reset: zynq: remove unneeded call to platfrom_set_drvdata()
reset: uniphier-glue: remove unneeded call to platform_set_drvdata()
reset: npcm: remove unneeded call to platform_set_drvdata()
reset: meson: remove unneeded call to platform_set_drvdata()
reset: lpc18xx: remove unneeded call to platform_set_drvdata()
reset: lantiq: remove unneeded call to platform_set_drvdata()
reset: bcm6345: remove unneeded call to platform_set_drvdata()
reset: ath79: remove unneeded call to platform_set_drvdata()
reset: hisilicon: Use dev_err_probe instead of dev_err
reset: reset-zynqmp: add support for Versal NET platform
dt-bindings: reset: Updated binding for Versal-NET reset driver
reset: Explicitly include correct DT includes
Link: https://lore.kernel.org/r/20230808145950.3057250-1-p.zabel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Add C3 Power Domains
- Explicitly include correct DT includes in Amlogic SoC drivers
- fix to avoid potential NULL pointer dereference in meson_sm
- Merge of genpd-v6.5-rc1-1 to move genpd amlogic drivers
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Merge tag 'amlogic-drivers-for-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into soc/drivers
Amlogic drivers changes for v6.6:
- Add C3 Power Domains
- Explicitly include correct DT includes in Amlogic SoC drivers
- fix to avoid potential NULL pointer dereference in meson_sm
- Merge of genpd-v6.5-rc1-1 to move genpd amlogic drivers
* tag 'amlogic-drivers-for-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
firmware: meson_sm: fix to avoid potential NULL pointer dereference
soc: amlogic: Explicitly include correct DT includes
soc: c3: Add support for power domains controller
dt-bindings: power: add Amlogic C3 power domains
soc: amlogic: use name instead of index as criterion
Link: https://lore.kernel.org/r/77e328b5-0d47-36e8-f62d-c745df06fb87@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The main addition this time is the support for SCMI v3.2 perf level
indexing mode. SCMI v3.2 adds support for hardware which works on
performance indices, instead of levels. Certain platforms use indices
to identify performance levels. Level Indexing Mode is used to describe
such platform behavior. All commands which utilize performance level
as a parameter need to specify the corresponding level index instead of
the performance level when Level Indexing Mode is used.
While at it, these changes also include hardening of all the internal
accesses to the performance domain information.
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Merge tag 'scmi-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates for v6.6
The main addition this time is the support for SCMI v3.2 perf level
indexing mode. SCMI v3.2 adds support for hardware which works on
performance indices, instead of levels. Certain platforms use indices
to identify performance levels. Level Indexing Mode is used to describe
such platform behavior. All commands which utilize performance level
as a parameter need to specify the corresponding level index instead of
the performance level when Level Indexing Mode is used.
While at it, these changes also include hardening of all the internal
accesses to the performance domain information.
* tag 'scmi-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Add v3.2 perf level indexing mode support
firmware: arm_scmi: Harden perf domain info access
Link: https://lore.kernel.org/r/20230804123231.3258141-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Couple of minor updates: Code simplification in the vexpress config bus
driver with the use of devm_platform_ioremap_resource() and simplification
of Arm Vexpress platform and related drivers entries in MAINTAINERS file.
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Merge tag 'vexpress-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm Vexpress updates for v6.6
Couple of minor updates: Code simplification in the vexpress config bus
driver with the use of devm_platform_ioremap_resource() and simplification
of Arm Vexpress platform and related drivers entries in MAINTAINERS file.
* tag 'vexpress-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
MAINTAINERS: Simplify entries for Arm Vexpress platform and related drivers
bus: vexpress-config: Convert to devm_platform_ioremap_resource()
Link: https://lore.kernel.org/r/20230804123214.3258032-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Cleanup remove callback in event driver
- Explicitly include correct DT header in power driver
- Fix logic around irq = 0 in power driver
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Merge tag 'zynqmp-soc-for-6.6' of https://github.com/Xilinx/linux-xlnx into soc/drivers
arm64: ZynqMP SoC changes for 6.6
- Cleanup remove callback in event driver
- Explicitly include correct DT header in power driver
- Fix logic around irq = 0 in power driver
* tag 'zynqmp-soc-for-6.6' of https://github.com/Xilinx/linux-xlnx:
soc: xilinx: Do not check for 0 return after calling platform_get_irq()
soc: xilinx: Explicitly include correct DT includes
driver: soc: xilinx: Convert to platform remove callback returning void
Link: https://lore.kernel.org/r/399efa45-df0a-4ec7-e25c-774bb8bf6fb4@monstr.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The Nspire boardfile platform drivers have all been converted. None
of the definitions in this header are used anymore. Remove it.
While here lets remove all the other unused headers and the file
name from in the file itself.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Writing this bit can be handled by the DT syscon-reboot driver.
Enable that driver and remove the machine_desc version.
Signed-off-by: Andrew Davis <afd@ti.com>
Tested-by: Fabian Vogt <fabian@ritter-vogt.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Fabian Vogt <fabian@ritter-vogt.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
File names inside the file does not add much and just makes it
difficult to move the files, often the file name is not updated
and becomes wrong. Remove them.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This looks better and allows us to see the row and column numbers
more easily. Switch to this macro here.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This node does not follow the DT binding schema, correct this.
The arm,pl011 binding requires the first clock to be named "uartclk".
Should result in no functional change.
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This node does not follow the DT binding schema, correct this.
All "regulator-fixed" are voltage type, so drop "regulator-type".
Should result in no functional change.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This node does not follow the DT binding schema, correct this.
Should result in no functional change.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This node does not follow the DT binding schema, correct this.
Should result in no functional change.
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Writing this bit can be handled by the syscon-reboot driver.
Add this node to DT.
Signed-off-by: Andrew Davis <afd@ti.com>
Tested-by: Fabian Vogt <fabian@ritter-vogt.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Fabian Vogt <fabian@ritter-vogt.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
We would like to support some additional OMAP class devices using the
common multi_v7_defconfig. To start, enable some audio/display related
modules:
DRM_OMAP/OMAP5_DSS_HDMI: For base DRM display support.
DRM_TI_TFP410: Used as a display bridge for several EVM's panels.
DRM_TI_TPD12S015: HDMI encoder on several OMAP/Sitara EVMs.
SND_SOC_TLV320AIC3X_I2C: For I2C attached TLV320AIC3x codecs.
Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This allows us to use the various remote processors on the TI OMAP and
Keystone family devices using the multi-v7 config, instead of only
with the OMAP/Keystone specific defconfigs (which we would like to
move away from needing).
Signed-off-by: Andrew Davis <afd@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A number of TI based platforms use TLV320AIC3x since it was their
standard audio CODEC for quite some time, including the Beagle X15.
Enable it multi_v7_defconfig to improve test coverage.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230731-arm-tlv320aic31xx-config-v1-1-013c8c321dad@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Galaxy S II: correct LCD screen's physical size.
2. Add Samsung Galaxy Tab 3 8.0 boards (Exynos4212).
3. Galaxy S3 family: add USB connector and USB OTG. Full USB OTG still
seems not to work, but at least HDMI improved and dtbs_check is
happy.
4. Fix issues pointed out by dtbs_check and W=1: unit addresses, use
'gpios' suffix over 'gpio', update i2c-arb device node to newer
binding.
5. Few white-space cleanups.
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Merge tag 'samsung-dt-6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/dt
Samsung DTS ARM changes for v6.6
1. Galaxy S II: correct LCD screen's physical size.
2. Add Samsung Galaxy Tab 3 8.0 boards (Exynos4212).
3. Galaxy S3 family: add USB connector and USB OTG. Full USB OTG still
seems not to work, but at least HDMI improved and dtbs_check is
happy.
4. Fix issues pointed out by dtbs_check and W=1: unit addresses, use
'gpios' suffix over 'gpio', update i2c-arb device node to newer
binding.
5. Few white-space cleanups.
* tag 'samsung-dt-6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: dts: samsung: exynos4412-midas: add USB connector and USB OTG
ARM: dts: samsung: exynos5250-snow: switch i2c-arb to new child variant
ARM: dts: samsung: exynos5250-snow: use 'gpios' suffix for i2c-arb
ARM: dts: samsung: fix Exynos4212 Tab3 makefile entries
ARM: dts: exynos: Add Samsung Galaxy Tab 3 8.0 boards
ARM: dts: samsung: s5pv210-smdkv210: correct ethernet reg addresses (split)
ARM: dts: samsung: s3c6410-mini6410: correct ethernet reg addresses (split)
ARM: dts: samsung: exynos4210-i9100: Fix LCD screen's physical size
ARM: dts: s5pv210: minor whitespace cleanup around '='
ARM: dts: exynos: minor whitespace cleanup around '='
Link: https://lore.kernel.org/r/20230810151250.220202-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Just one change to get started on SoC yaml binding changes for omaps.
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Merge tag 'omap-for-v6.6/dt-bindings-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into soc/dt
Devicetree binding changes for omaps for v6.6
Just one change to get started on SoC yaml binding changes for omaps.
* tag 'omap-for-v6.6/dt-bindings-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
dt-bindings: omap: Partially convert omap.txt to yaml
Link: https://lore.kernel.org/r/pull-1691658952-110529@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The defined value for "status" is "disabled", not "disable".
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230804225813.12493-1-robh@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
