Add optional bindings "vpcie3v3-supply" and "vpcie12v-supply" to describe
regulators of a PCIe slot's supplies 3.3V and 12V provided the platform
is designed to have regulator controlled slot supplies.
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Add optional bindings "pinctrl-names" and "pinctrl-0" to describe pin
configuration information of a particular PCIe controller.
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Add support for Synopsys DesignWare core IP based PCIe host controller
present in the Tegra194 SoC.
Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Do not allow configuring null sensor gain since it will force to 0
device outputs
Fixes: c8d4066c7246 ("iio: imu: st_lsm6dsx: remove invalid gain value for LSM9DS1")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
meson_saradc's irq handler uses priv->regmap so make sure that it is
allocated before the irq get enabled.
This also fixes crash when CONFIG_DEBUG_SHIRQ is enabled, as device
managed resources are freed in the inverted order they had been
allocated, priv->regmap was freed before the spurious fake irq that
CONFIG_DEBUG_SHIRQ adds called the handler.
Fixes: 3af109131b ("iio: adc: meson-saradc: switch from polling to interrupt mode")
Reported-by: Elie Roudninski <xademax@gmail.com>
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Elie ROUDNINSKI <xademax@gmail.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The pci express variant of the digigram lx6464es card has a different
device ID, but works without changes to the driver.
Thanks to Nikolas Slottke for reporting and testing.
Signed-off-by: Tim Blechmann <tim@klingt.org>
Link: https://lore.kernel.org/r/20190906082119.40971-1-tim@klingt.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
KVM guests with commit c8c4076723 ("x86/timer: Skip PIT initialization on
modern chipsets") applied to guest kernel have been observed to have
unusually higher CPU usage with symptoms of increase in vm exits for HLT
and MSW_WRITE (MSR_IA32_TSCDEADLINE).
This is caused by older QEMUs lacking support for X86_FEATURE_ARAT. lapic
clock retains CLOCK_EVT_FEAT_C3STOP and nohz stays inactive. There's no
usable broadcast device either.
Do the PIT initialization if guest CPU lacks X86_FEATURE_ARAT. On real
hardware it shouldn't matter as ARAT and DEADLINE come together.
Fixes: c8c4076723 ("x86/timer: Skip PIT initialization on modern chipsets")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This cpupower update for Linux 5.4-rc1 consists of bug fixes and
German translation updates from Benjamin Weis.
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Merge tag 'linux-cpupower-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Pull cpupower utility updates for v5.4 from Shuah Khan:
"This cpupower update for Linux 5.4-rc1 consists of bug fixes and
German translation updates from Benjamin Weis."
* tag 'linux-cpupower-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
cpupower: update German translation
tools/power/cpupower: fix 64bit detection when cross-compiling
cpupower: Add missing newline at end of file
This reverts commit 558682b529.
Chris Wilson reports that it breaks his CPU hotplug test scripts. In
particular, it breaks offlining and then re-onlining the boot CPU, which
we treat specially (and the BIOS does too).
The symptoms are that we can offline the CPU, but it then does not come
back online again:
smpboot: CPU 0 is now offline
smpboot: Booting Node 0 Processor 0 APIC 0x0
smpboot: do_boot_cpu failed(-1) to wakeup CPU#0
Thomas says he knows why it's broken (my personal suspicion: our magic
handling of the "cpu0_logical_apicid" thing), but for 5.3 the right fix
is to just revert it, since we've never touched the LDR bits before, and
it's not worth the risk to do anything else at this stage.
[ Hotpluging of the boot CPU is special anyway, and should be off by
default. See the "BOOTPARAM_HOTPLUG_CPU0" config option and the
cpu0_hotplug kernel parameter.
In general you should not do it, and it has various known limitations
(hibernate and suspend require the boot CPU, for example).
But it should work, even if the boot CPU is special and needs careful
treatment - Linus ]
Link: https://lore.kernel.org/lkml/156785100521.13300.14461504732265570003@skylake-alporthouse-com/
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bandan Das <bsd@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Link: https://lore.kernel.org/r/20190904130457.24744-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Link: https://lore.kernel.org/r/20190904130348.24772-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Link: https://lore.kernel.org/r/20190904130256.24704-1-yuehaibing@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use kmemdup rather than duplicating its implementation
Link: https://lore.kernel.org/r/20190831124424.18642-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Specify the UFS device-reset gpio for db845c and mtp, so that the
controller will issue a reset of the UFS device.
Link: https://lore.kernel.org/r/20190828191756.24312-4-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The UFS_RESET pin on Qualcomm SoCs are controlled by TLMM and exposed
through the GPIO framework. Acquire the device-reset GPIO and use this to
implement the device_reset vops, to allow resetting the attached memory.
Based on downstream support implemented by Subhash Jadavani
<subhashj@codeaurora.org>.
Link: https://lore.kernel.org/r/20190828191756.24312-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Some UFS memory devices needs their reset line toggled in order to get them
into a good state for initialization. Provide a new vops to allow the
platform driver to implement this operation.
Link: https://lore.kernel.org/r/20190828191756.24312-2-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
A recent patch unconditionally marks the hba as in error as part of
resetting the adapter. The driver flow that called the adapter reset was a
recovery path, which expects the adapter to not be in an error state in
order to finish the recovery. Given the new error state being set, the
recovery fails and the adapter is left in limbo.
Revise the adapter reset routine so that it will only mark the adapter in
error if it was unable to reset the adapter.
Fixes: 8c24a4f643 ("scsi: lpfc: Fix crash due to port reset racing vs adapter error handling")
Link: https://lore.kernel.org/r/20190903215441.10490-1-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Convert the remaining %pf users to %ps to prepare for the removal of the
old %pf conversion specifier support.
Fixes: 3235066449 ("scsi: lpfc: Migrate to %px and %pf in kernel print calls")
Link: https://lore.kernel.org/r/20190904160423.3865-1-sakari.ailus@linux.intel.com
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This is a fairly complete description of an OLPC XO 1.75 laptop.
What's missing for now is the GPU, LCD controller, DCON, the panel and
audio.
The machine is booted with OpenFirmware and thus has a devicetree.
However, older versions are unable to create a valid FDT and don't
follow the Linux bindings. Having an device tree in the kernel tree
makes it easier to use mainline kernels on such machines, test changes
with CONFIG_ARM_APPENDED_DTB and give a good reference on what bindings
are used on the machine without an access to one.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>
This device is not an OTG phy, it's a regular USB HS phy. Follow the
generic node name recommendation, and rename it to "usb-phy".
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>
This makes the 8250_of driver happy. There are two more drivers in the
tree that bind to mrvl,mmp-uart compatibles: pxa and 8250_pxa and
neither of them requires the reg-shift property, assuming it's always 2.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>
The SPI bus has a single address cell and not size cells.
Also, dtc thinks the SPI nodes are preferrably called "spi" and it is
right to think so.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Pavel Machek <pavel@ucw.cz>
Matt bisected a sparc64 specific issue with semctl, shmctl and msgctl
to a commit from my y2038 series in linux-5.1, as I missed the custom
sys_ipc() wrapper that sparc64 uses in place of the generic version that
I patched.
The problem is that the sys_{sem,shm,msg}ctl() functions in the kernel
now do not allow being called with the IPC_64 flag any more, resulting
in a -EINVAL error when they don't recognize the command.
Instead, the correct way to do this now is to call the internal
ksys_old_{sem,shm,msg}ctl() functions to select the API version.
As we generally move towards these functions anyway, change all of
sparc_ipc() to consistently use those in place of the sys_*() versions,
and move the required ksys_*() declarations into linux/syscalls.h
The IS_ENABLED(CONFIG_SYSVIPC) check is required to avoid link
errors when ipc is disabled.
Reported-by: Matt Turner <mattst88@gmail.com>
Fixes: 275f22148e ("ipc: rename old-style shmctl/semctl/msgctl syscalls")
Cc: stable@vger.kernel.org
Tested-by: Matt Turner <mattst88@gmail.com>
Tested-by: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
On fast cable pull, where driver is unable to detect device has disappeared
and came back based on switch info, qla2xxx would not re-login while remote
port has already invalidated the session. This causes IO timeout. This
patch would relogin to remote device for RSCN affected port.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-6-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Login session was stucked on cable pull. When FW is in the middle PRLI
PENDING + driver is in Initiator mode, driver fails to check back with FW to
see if the PRLI has completed. This patch would re-check with FW again to
make sure PRLI would complete before pushing forward with relogin.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-5-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
HINT_MBX_INT_PENDING is not guaranteed to be cleared by firmware. Remove
check that prevent driver load with ISP82XX.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-4-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Use adapter specific callback to read flash instead of ISP adapter
specific.
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Link: https://lore.kernel.org/r/20190830222402.23688-3-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch updates log message which indicates number of vectors used by
the driver instead of displaying failure to get maximum requested
vectors. Driver will always request maximum vectors during
initialization. In the event driver is not able to get maximum requested
vectors, it will adjust the allocated vectors. This is normal and does not
imply failure in driver.
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Link: https://lore.kernel.org/r/20190830222402.23688-2-hmadhani@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For commands completing with a resid not aligned on the device logical
sector size, also print the command CDB in addition to the current message
to help debug hardware generating such incorrect command completion
information.
Link: https://lore.kernel.org/r/20190828053511.14818-1-damien.lemoal@wdc.com
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
pci_alloc_irq_vectors() returns number of vectors allocated. Fix the check
for error condition.
Fixes: cca678dfba ("scsi: fnic: switch to pci_alloc_irq_vectors")
Link: https://lore.kernel.org/r/20190827211340.1095-1-gvaradar@cisco.com
Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Acked-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Here is a few small patches for the documenation file that came in
through the char-misc tree in -rc7 for your tree. They fix the mistake
in the .rst format that kept the table of companies from showing up in
the html output, and most importantly, add people's names to the list
showing support for our process.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Documentation updates from Greg KH:
"A few small patches for the documenation file that came in through the
char-misc tree in -rc7 for your tree.
They fix the mistake in the .rst format that kept the table of
companies from showing up in the html output, and most importantly,
add people's names to the list showing support for our process"
* tag 'char-misc-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Documentation/process: Add Qualcomm process ambassador for hardware security issues
Documentation/process/embargoed-hardware-issues: Microsoft ambassador
Documentation/process: Add Google contact for embargoed hardware issues
Documentation/process: Volunteer as the ambassador for Xen
cpumasks are allocated by calling the alloc_cpu_mask() function and are
never free'd. They should be free'd after the commands have run.
Fix the memory leaks by calling free_cpu_set().
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The intel-speed-select tool currently only outputs a hexidecimal CPU mask,
which requires translation for use with kernel parameters such as
isolcpus.
Along with the CPU mask, output a human readable CPU list.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The intel-speed-select tool currently outputs the turbo ratio for every
bucket. Make the output more user-friendly by changing the output to the
maximum turbo frequency.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
These features are introduced on new processors that will never operate
in the KHz range.
Save some zeros and switch the output to MHz.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The current output of 'intel-speed-select -c 53 perf-profile info -l 0'
shows
speed-select-turbo-freq-support:1
speed-select-base-freq-support:1
speed-select-base-freq-enabled:0
speed-select-turbo-freq-enabled:0
Simplify the output to single lines displaying status of disabled,
enabled, and unsupported.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
I have a system with 28 threads/socket but intel-speed-select reports
a cpu-count of 29.
Fix an off-by-one error in the cpu_count() function.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The isst_send_msr_command() function will read 8 bytes but we are
passing an address to an int (4 bytes) so it results in a read overflow.
Fixes: 3fb4f7cd47 ("tools/power/x86: A tool to validate Intel Speed Select commands")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use device_init_wakeup and pm_wakeup_hard_event instead of directly
calling pm_system_wakeup(). This is the preferred way to do this and
this will allow the user to disable wakeup through INT0002 events
through sysfs.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Commit 871f1f2bcb ("platform/x86: intel_int0002_vgpio: Only implement
irq_set_wake on Bay Trail") removed the irq_set_wake method from the
struct irq_chip used on Cherry Trail, but it did not set
IRQCHIP_SKIP_SET_WAKE causing kernel/irq/manage.c: set_irq_wake_real()
to return -ENXIO.
This causes the kernel to no longer see PME events reported through the
INT0002 device as wakeup events. Which e.g. breaks wakeup by the (USB)
keyboard on many Cherry Trail 2-in-1 devices.
Cc: stable@vger.kernel.org
Fixes: 871f1f2bcb ("platform/x86: intel_int0002_vgpio: Only implement irq_set_wake on Bay Trail")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
In function ec_read_u8(), variable "value" could be uninitialized
if ec_read() fails. However, "value" is returned directly and used
in its callers. This is potentially unsafe.
Signed-off-by: Yizhuo <yzhai003@ucr.edu>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Add touchscreen info for the Trekstor Primebook C11B 2-in-1, note the C11B
used the same touchscreen as the regular C11, so we only add a new DMI
match.
Cc: Thomas Hiller <thomas.hiller@gmx.de>
Reported-and-tested-by: Thomas Hiller <thomas.hiller@gmx.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This feature is found optionally in T480s, T490, T490s.
The feature is called lcdshadow and visible via
/proc/acpi/ibm/lcdshadow.
The ACPI methods \_SB.PCI0.LPCB.EC.HKEY.{GSSS,SSSS,TSSS,CSSS} are
available in these machines. They get, set, toggle or change the state
apparently.
The patch was tested on a 5.0 series kernel on a T480s.
Signed-off-by: Alexander Schremmer <alex@alexanderweb.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Vidya Sagar