commit b28ff7a7c3 upstream.
p2sb_bar() unhides P2SB device to get resources from the device. It
guards the operation by locking pci_rescan_remove_lock so that parallel
rescans do not find the P2SB device. However, this lock causes deadlock
when PCI bus rescan is triggered by /sys/bus/pci/rescan. The rescan
locks pci_rescan_remove_lock and probes PCI devices. When PCI devices
call p2sb_bar() during probe, it locks pci_rescan_remove_lock again.
Hence the deadlock.
To avoid the deadlock, do not lock pci_rescan_remove_lock in p2sb_bar().
Instead, do the lock at fs_initcall. Introduce p2sb_cache_resources()
for fs_initcall which gets and caches the P2SB resources. At p2sb_bar(),
refer the cache and return to the caller.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: 9745fb0747 ("platform/x86/intel: Add Primary to Sideband (P2SB) bridge support")
Cc: stable@vger.kernel.org
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/linux-pci/6xb24fjmptxxn5js2fjrrddjae6twex5bjaftwqsuawuqqqydx@7cl3uik5ef6j/
Link: https://lore.kernel.org/r/20231229063912.2517922-2-shinichiro.kawasaki@wdc.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit a6584711e6 ]
LKP found issues with a kernel doc in the driver:
core.c:116: warning: Function parameter or member 'ioss_evtconfig' not described in 'telemetry_update_events'
core.c:188: warning: Function parameter or member 'ioss_evtconfig' not described in 'telemetry_get_eventconfig'
It looks like it were copy'n'paste typos when these descriptions
had been introduced. Fix the typos.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202310070743.WALmRGSY-lkp@intel.com/
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231120150756.1661425-1-andriy.shevchenko@linux.intel.com
Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit c8820c92ca upstream.
Serdev recv_buf() callback is supposed to return the amount of bytes
consumed, therefore an int in between 0 and count.
Do not return negative number in case of issue, when
ssam_controller_receive_buf() returns ESHUTDOWN just returns 0, e.g. no
bytes consumed, this keep the exact same behavior as it was before.
This fixes a potential WARN in serdev-ttyport.c:ttyport_receive_buf().
Fixes: c167b9c7e3 ("platform/surface: Add Surface Aggregator subsystem")
Cc: stable@vger.kernel.org
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20231128194935.11350-1-francesco@dolcini.it
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit d4eef75279 ]
The secure boot state of the BlueField SoC is represented by two bits:
0 = production state
1 = secure boot enabled
2 = non-secure (secure boot disabled)
3 = RMA state
There is also a single bit to indicate whether production keys or
development keys are being used when secure boot is enabled.
This single bit (specified by MLXBF_BOOTCTL_SB_DEV_MASK) only has
meaning if secure boot state equals 1 (secure boot enabled).
The secure boot states are as follows:
- “GA secured” is when secure boot is enabled with official production keys.
- “Secured (development)” is when secure boot is enabled with development keys.
Without this fix “GA Secured” is displayed on development cards which is
misleading. This patch updates the logic in "lifecycle_state_show()" to
handle the case where the SoC is configured for secure boot and is using
development keys.
Fixes: 79e29cb8fb ("platform/mellanox: Add bootctl driver for Mellanox BlueField Soc")
Reviewed-by: Khalil Blaiech <kblaiech@nvidia.com>
Signed-off-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20231130183515.17214-1-davthompson@nvidia.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit cbf54f3760 ]
Some machines like the HP Omen 17 ck2000nf contain WMI blocks
with zero instances, so any WMI driver which tries to handle the
associated WMI device will fail.
Skip such WMI blocks to avoid confusing any WMI drivers.
Reported-by: Alexis Belmonte <alexbelm48@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218188
Fixes: bff431e49f ("ACPI: WMI: Add ACPI-WMI mapping driver")
Tested-by: Alexis Belmonte <alexbelm48@gmail.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231129181654.5800-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit b52cbca22c ]
asus-nb-wmi calls i8042_install_filter() in some cases, but it never
calls i8042_remove_filter(). This means that a dangling pointer to
the filter function is left after rmmod leading to crashes.
Fix this by moving the i8042-filter installation to the shared
asus-wmi code and also remove it from the shared code on driver unbind.
Fixes: b5643539b8 ("platform/x86: asus-wmi: Filter buggy scan codes on ASUS Q500A")
Cc: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231120154235.610808-2-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit eba9ac7aba ]
Since commit fa1f68db6c ("drivers: misc: pass miscdevice pointer via
file private data"), the miscdevice stores a pointer to itself inside
filp->private_data, which means that private_data will not be NULL when
wmi_char_open() is called. This might cause memory corruption should
wmi_char_open() be unable to find its driver, something which can
happen when the associated WMI device is deleted in wmi_free_devices().
Fix the problem by using the miscdevice pointer to retrieve the WMI
device data associated with a char device using container_of(). This
also avoids wmi_char_open() picking a wrong WMI device bound to a
driver with the same name as the original driver.
Fixes: 44b6b76611 ("platform/x86: wmi: create userspace interface for drivers")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231020211005.38216-5-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit ed85891a27 ]
When a WMI device besides the first one somehow fails to register,
retval is returned while still containing a negative error code. This
causes the ACPI device fail to probe, leaving behind zombie WMI devices
leading to various errors later.
Handle the single error path separately and return 0 unconditionally
after trying to register all WMI devices to solve the issue. Also
continue to register WMI devices even if some fail to allocate memory.
Fixes: 6ee50aaa9a ("platform/x86: wmi: Instantiate all devices before adding them")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20231020211005.38216-4-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 99c09c985e ]
This commit fixes the smatch static checker warning in function
mlxbf_tmfifo_rxtx_word() which complains data not initialized at
line 634 when IS_VRING_DROP() is TRUE.
Signed-off-by: Liming Sun <limings@nvidia.com>
Link: https://lore.kernel.org/r/20231012230235.219861-1-limings@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 3bde7ec13c upstream.
When suspending to idle and resuming on some Lenovo laptops using the
Mendocino APU, multiple NVME IOMMU page faults occur, showing up in
dmesg as repeated errors:
nvme 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000b
address=0xb6674000 flags=0x0000]
The system is unstable afterwards.
Applying the s2idle quirk introduced by commit 455cd867b8 ("platform/x86:
thinkpad_acpi: Add a s2idle resume quirk for a number of laptops")
allows these systems to work with the IOMMU enabled and s2idle
resume to work.
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218024
Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Suggested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: David Lazar <dlazar@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://lore.kernel.org/r/ZTlsyOaFucF2pWrL@localhost
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit a5b92be248 upstream.
Older Asus laptops change the backlight level themselves and then send
WMI events with different codes for different backlight levels.
The asus-wmi.c code maps the entire range of codes reported on
brightness down keypresses to an internal ASUS_WMI_BRN_DOWN code:
define NOTIFY_BRNUP_MIN 0x11
define NOTIFY_BRNUP_MAX 0x1f
define NOTIFY_BRNDOWN_MIN 0x20
define NOTIFY_BRNDOWN_MAX 0x2e
if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
code = ASUS_WMI_BRN_UP;
else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
code = ASUS_WMI_BRN_DOWN;
This mapping is causing issues on new laptop models which actually
send 0x2b events for printscreen presses and 0x2c events for
capslock presses, which get translated into spurious brightness-down
presses.
This mapping is really only necessary when asus-wmi has registered
a backlight-device for backlight control. In this case the mapping
was used to decide to filter out the keypresss since in this case
the firmware has already modified the brightness itself and instead
of reporting a keypress asus-wmi will just report the new brightness
value to userspace.
OTOH when the firmware does not adjust the brightness itself then
it seems to always report 0x2e for brightness-down presses and
0x2f for brightness up presses independent of the actual brightness
level. So in this case the mapping of the code is not necessary
and this translation actually leads to spurious brightness-down
presses being send to userspace when pressing printscreen or capslock.
Modify asus_wmi_handle_event_code() to only do the mapping
when using asus-wmi backlight control to fix the spurious
brightness-down presses.
Reported-by: James John <me@donjajo.com>
Closes: https://lore.kernel.org/platform-driver-x86/a2c441fe-457e-44cf-a146-0ecd86b037cf@donjajo.com/
Closes: https://bbs.archlinux.org/viewtopic.php?pid=2123716
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231017090725.38163-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f37cc2fc27 upstream.
Older Asus laptops change the backlight level themselves and then send
WMI events with different codes for different backlight levels.
The asus-wmi.c code maps the entire range of codes reported on
brightness down keypresses to an internal ASUS_WMI_BRN_DOWN code:
define NOTIFY_BRNUP_MIN 0x11
define NOTIFY_BRNUP_MAX 0x1f
define NOTIFY_BRNDOWN_MIN 0x20
define NOTIFY_BRNDOWN_MAX 0x2e
if (code >= NOTIFY_BRNUP_MIN && code <= NOTIFY_BRNUP_MAX)
code = ASUS_WMI_BRN_UP;
else if (code >= NOTIFY_BRNDOWN_MIN && code <= NOTIFY_BRNDOWN_MAX)
code = ASUS_WMI_BRN_DOWN;
Before this commit all the NOTIFY_BRNDOWN_MIN - NOTIFY_BRNDOWN_MAX
aka 0x20 - 0x2e events were mapped to 0x20.
This mapping is causing issues on new laptop models which actually
send 0x2b events for printscreen presses and 0x2c events for
capslock presses, which get translated into spurious brightness-down
presses.
The plan is disable the 0x11-0x2e special mapping on laptops
where asus-wmi does not register a backlight-device to avoid
the spurious brightness-down keypresses. New laptops always send
0x2e for brightness-down presses, change the special internal
ASUS_WMI_BRN_DOWN value from 0x20 to 0x2e to match this in
preparation for fixing the spurious brightness-down presses.
This change does not have any functional impact since all
of 0x20 - 0x2e is mapped to ASUS_WMI_BRN_DOWN first and only
then checked against the keymap code and the new 0x2e
value is still in the 0x20 - 0x2e range.
Reported-by: James John <me@donjajo.com>
Closes: https://lore.kernel.org/platform-driver-x86/a2c441fe-457e-44cf-a146-0ecd86b037cf@donjajo.com/
Closes: https://bbs.archlinux.org/viewtopic.php?pid=2123716
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231017090725.38163-2-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 4d73c6772a upstream.
When the current uncore frequency can't be read, don't create attribute
"current_freq_khz" as any read will fail later. Some user space
applications like turbostat fail to continue with the failure. So, check
error during attribute creation.
Fixes: 414eef2728 ("platform/x86/intel/uncore-freq: Display uncore current frequency")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231004181915.1887913-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit fe0e04cf66 upstream.
If platform_profile_register() fails, the driver does not propagate
the error, but instead probes successfully. This means when the driver
unbinds, the a warning might be issued by platform_profile_remove().
Fix this by propagating the error back to the caller of
surface_platform_profile_probe().
Compile-tested only.
Fixes: b78b4982d7 ("platform/surface: Add platform profile driver")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Tested-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20231014235449.288702-1-W_Armin@gmx.de
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 5b44abbc39 ]
As described in the added code comment, a reference to .exit.text is ok
for drivers registered via module_platform_driver_probe(). Make this
explicit to prevent a section mismatch warning:
WARNING: modpost: drivers/platform/x86/hp/hp-wmi: section mismatch in reference: hp_wmi_driver+0x8 (section: .data) -> hp_wmi_bios_remove (section: .exit.text)
Fixes: c165b80cfe ("hp-wmi: fix handling of platform device")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231004111624.2667753-1-u.kleine-koenig@pengutronix.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 528ab3e605 ]
If a duplicate attribute is found using kset_find_obj(), a reference
to that attribute is returned which needs to be disposed accordingly
using kobject_put(). Move the setting name validation into a separate
function to allow for this change without having to duplicate the
cleanup code for this setting.
As a side note, a very similar bug was fixed in
commit 7295a996fd ("platform/x86: dell-sysman: Fix reference leak"),
so it seems that the bug was copied from that driver.
Compile-tested only.
Fixes: 1bcad8e510 ("platform/x86: think-lmi: Fix issues with duplicate attributes")
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230925142819.74525-2-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 4106a70dda ]
Add quirk for ASUS ROG X16 (GV601V, 2023 versions) Flow 2-in-1
to enable tablet mode with lid flip (all screen rotations).
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20230905082813.13470-1-luke@ljones.dev
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c2dffda1d8 ]
The latest version of the mlxbf_bootctl driver utilizes
"sysfs_format_mac", and this API is only available if
NET is defined in the kernel configuration. This patch
changes the mlxbf_bootctl Kconfig to depend on NET.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309031058.JvwNDBKt-lkp@intel.com/
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20230905133243.31550-1-davthompson@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 85e654c9f7 ]
It's possible for interrupts to get significantly delayed to the point
that callers of intel_scu_ipc_dev_command() and friends can call the
function once, hit a timeout, and call it again while the interrupt
still hasn't been processed. This driver will get seriously confused if
the interrupt is finally processed after the second IPC has been sent
with ipc_command(). It won't know which IPC has been completed. This
could be quite disastrous if calling code assumes something has happened
upon return from intel_scu_ipc_dev_simple_command() when it actually
hasn't.
Let's avoid this scenario by simply returning -EBUSY in this case.
Hopefully higher layers will know to back off or fail gracefully when
this happens. It's all highly unlikely anyway, but it's better to be
correct here as we have no way to know which IPC the status register is
telling us about if we send a second IPC while the previous IPC is still
processing.
Cc: Prashant Malani <pmalani@chromium.org>
Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Fixes: ed12f295bf ("ipc: Added support for IPC interrupt mode")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20230913212723.3055315-5-swboyd@chromium.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit efce78584e ]
Andy discovered this bug during patch review. The 'scu' argument to this
function shouldn't be overridden by the function itself. It doesn't make
any sense. Looking at the commit history, we see that commit
f57fa18583 ("platform/x86: intel_scu_ipc: Introduce new SCU IPC API")
removed the setting of the scu to ipcdev in other functions, but not
this one. That was an oversight. Remove this line so that we stop
overriding the scu instance that is used by this function.
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Closes: https://lore.kernel.org/r/ZPjdZ3xNmBEBvNiS@smile.fi.intel.com
Cc: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Fixes: f57fa18583 ("platform/x86: intel_scu_ipc: Introduce new SCU IPC API")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20230913212723.3055315-4-swboyd@chromium.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 427fada620 ]
It's possible for the completion in ipc_wait_for_interrupt() to timeout,
simply because the interrupt was delayed in being processed. A timeout
in itself is not an error. This driver should check the status register
upon a timeout to ensure that scheduling or interrupt processing delays
don't affect the outcome of the IPC return value.
CPU0 SCU
---- ---
ipc_wait_for_interrupt()
wait_for_completion_timeout(&scu->cmd_complete)
[TIMEOUT] status[IPC_STATUS_BUSY]=0
Fix this problem by reading the status bit in all cases, regardless of
the timeout. If the completion times out, we'll assume the problem was
that the IPC_STATUS_BUSY bit was still set, but if the status bit is
cleared in the meantime we know that we hit some scheduling delay and we
should just check the error bit.
Cc: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Fixes: ed12f295bf ("ipc: Added support for IPC interrupt mode")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20230913212723.3055315-3-swboyd@chromium.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e0b4ab3bb9 ]
It's possible for the polling loop in busy_loop() to get scheduled away
for a long time.
status = ipc_read_status(scu); // status = IPC_STATUS_BUSY
<long time scheduled away>
if (!(status & IPC_STATUS_BUSY))
If this happens, then the status bit could change while the task is
scheduled away and this function would never read the status again after
timing out. Instead, the function will return -ETIMEDOUT when it's
possible that scheduling didn't work out and the status bit was cleared.
Bit polling code should always check the bit being polled one more time
after the timeout in case this happens.
Fix this by reading the status once more after the while loop breaks.
The readl_poll_timeout() macro implements all of this, and it is
shorter, so use that macro here to consolidate code and fix this.
There were some concerns with using readl_poll_timeout() because it uses
timekeeping, and timekeeping isn't running early on or during the late
stages of system suspend or early stages of system resume, but an audit
of the code concluded that this code isn't called during those times so
it is safe to use the macro.
Cc: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Fixes: e7b7ab3847 ("platform/x86: intel_scu_ipc: Sleeping is fine when polling")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20230913212723.3055315-2-swboyd@chromium.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 0a138f1670 ]
The only probing method supported by the Nvidia SN2201 platform driver
is probing through an ACPI match table. Hence add a dependency on
ACPI, to prevent asking the user about this driver when configuring a
kernel without ACPI support.
Fixes: 662f24826f ("platform/mellanox: Add support for new SN2201 system")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Vadim Pasternak <vadimp@nvidia.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/ec5a4071691ab08d58771b7732a9988e89779268.1693828363.git.geert+renesas@glider.be
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 0f5969452e ]
This fix involves 2 changes:
- All event regs have a reset value of 0, which is not a valid
event_number as per the event_list for most blocks and hence seen
as an error. Add a "disable" event with event_number 0 for all blocks.
- The enable bit for each counter need not be checked before
reading the event info, and hence removed.
Fixes: 1a218d312e ("platform/mellanox: mlxbf-pmc: Add Mellanox BlueField PMC driver")
Signed-off-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/04d0213932d32681de1c716b54320ed894e52425.1693917738.git.shravankr@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 78034cbece ]
This commit fixes tmfifo console stuck issue when the virtual
networking interface is in down state. In such case, the network
Rx descriptors runs out and causes the Rx network packet staying
in the head of the tmfifo thus blocking the console packets. The
fix is to drop the Rx network packet when no more Rx descriptors.
Function name mlxbf_tmfifo_release_pending_pkt() is also renamed
to mlxbf_tmfifo_release_pkt() to be more approperiate.
Fixes: 1357dfd726 ("platform/mellanox: Add TmFifo driver for Mellanox BlueField Soc")
Signed-off-by: Liming Sun <limings@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/8c0177dc938ae03f52ff7e0b62dbeee74b7bec09.1693322547.git.limings@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 4dbd6e61ad ]
On systems that support slider notifications but don't otherwise support
granular slider the SPS cleanup path doesn't run.
This means that loading/unloading/loading leads to failures because
the sysfs files don't get setup properly when reloaded.
Add the missing cleanup path.
Fixes: 33c9ab5b49 ("platform/x86/amd/pmf: Notify OS power slider update")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230823185421.23959-1-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 7295a996fd ]
If a duplicate attribute is found using kset_find_obj(),
a reference to that attribute is returned. This means
that we need to dispose it accordingly. Use kobject_put()
to dispose the duplicate attribute in such a case.
Compile-tested only.
Fixes: e8a60aa740 ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230805053610.7106-1-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 0848cab765 ]
rshim console does not show all entries of dmesg.
Fixed by setting MLXBF_TM_TX_LWM_IRQ for every CONSOLE notification.
Signed-off-by: Shih-Yi Chen <shihyic@nvidia.com>
Reviewed-by: Liming Sung <limings@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20230821150627.26075-1-shihyic@nvidia.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 785c00993d ]
The return value from the call to amd_pmf_get_pprof_modes() is int.
However, the return value is being assigned to an unsigned char
variable 'mode', so making 'mode' an int.
silence the warning:
./drivers/platform/x86/amd/pmf/sps.c:183:5-9: WARNING: Unsigned expression compared with zero: mode < 0
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=5995
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230727014315.51375-1-yang.lee@linux.alibaba.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c21733754c ]
Currently huawei-wmi causes a lot of spam in dmesg on my
Huawei MateBook X Pro 2022:
...
[36409.328463] input input9: Unknown key pressed, code: 0x02c1
[36411.335104] input input9: Unknown key pressed, code: 0x02c1
[36412.338674] input input9: Unknown key pressed, code: 0x02c1
[36414.848564] input input9: Unknown key pressed, code: 0x02c1
[36416.858706] input input9: Unknown key pressed, code: 0x02c1
...
Fix that by ignoring events generated by ambient light sensor.
This issue was reported on GitHub and resolved with the following merge
request:
https://github.com/aymanbagabas/Huawei-WMI/pull/70
I've contacted the mainter of this repo and he gave me the "go ahead" to
send this patch to the maling list.
Signed-off-by: Konstantin Shelekhin <k.shelekhin@ftml.net>
Link: https://lore.kernel.org/r/20230722155922.173856-1-k.shelekhin@ftml.net
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 1da0893aed ]
key might contain private part of the key, so better use
kfree_sensitive to free it.
Signed-off-by: Wang Ming <machel@vivo.com>
Link: https://lore.kernel.org/r/20230717101114.18966-1-machel@vivo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 7783e97f85 ]
HP Elite Dragonfly G2 (a convertible laptop/tablet) has a reliable VGBS
method. If VGBS is not called on boot, the firmware sends an initial
0xcd event shortly after calling the BTNL method, but only if the device
is booted in the laptop mode. However, if the device is booted in the
tablet mode and VGBS is not called, there is no initial 0xcc event, and
the input device for SW_TABLET_MODE is not registered up until the user
turns the device into the laptop mode.
Call VGBS on boot on this device to get the initial state of
SW_TABLET_MODE in a reliable way.
Tested with BIOS 1.13.1.
Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Link: https://lore.kernel.org/r/20230716183213.64173-1-maxtram95@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e3ab18de2b ]
On a HP Elite Dragonfly G2 the 0xcc and 0xcd events for SW_TABLET_MODE
are only send after the BTNL ACPI method has been called.
Likely more devices need this, so make the BTNL ACPI method unconditional
instead of only doing it on devices with a 5 button array.
Note this also makes the intel_button_array_enable() call in probe()
unconditional, that function does its own priv->array check. This makes
the intel_button_array_enable() call in probe() consistent with the calls
done on suspend/resume which also rely on the priv->array check inside
the function.
Reported-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Closes: https://lore.kernel.org/platform-driver-x86/20230712175023.31651-1-maxtram95@gmail.com/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230715181516.5173-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit a260f7d726 upstream.
The Lenovo Thinkbook 14s Yoga ITL has 4 new symbols/shortcuts on their
F9-F11 and PrtSc keys:
F9: Has a symbol of a head with a headset, the manual says "Service key"
F10: Has a symbol of a telephone horn which has been picked up from the
receiver, the manual says: "Answer incoming calls"
F11: Has a symbol of a telephone horn which is resting on the receiver,
the manual says: "Reject incoming calls"
PrtSc: Has a symbol of a siccor and a dashed ellipse, the manual says:
"Open the Windows 'Snipping' Tool app"
This commit adds support for these 4 new hkey events.
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Link: https://lore.kernel.org/r/20230819-lenovo_keys-v1-1-9d34eac88e0a@apitzsch.eu
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 1cd0302be5 upstream.
The ACPI device CSC3556 is a Cirrus Logic CS35L56 mono amplifier which
is used in multiples, and can be connected either to I2C or SPI.
There will be multiple instances under the same Device() node. Add it
to ignore_serial_bus_ids and handle it in the serial-multi-instantiate
driver.
There can be a 5th I2cSerialBusV2, but this is an alias address and doesn't
represent a real device. Ignore this by having a dummy 5th entry in the
serial-multi-instantiate instance list with the name of a non-existent
driver, on the same pattern as done for bsg2150.
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20230728111345.7224-1-rf@opensource.cirrus.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 676b7c5eca upstream.
The current code assumes that the CSC3551(multiple cs35l41) always have
its interrupt pin connected to GPIO thus the IRQ can be acquired with
acpi_dev_gpio_irq_get. However on some newer laptop models this is no
longer the case as they have the CSC3551's interrupt pin connected to
APIC. This causes smi_i2c_probe to fail on these machines.
To support these machines, a new macro IRQ_RESOURCE_AUTO was introduced
for cs35l41 smi_node, and smi_get_irq function was modified so it tries
to get GPIO irq resource first and if failed, tries to get
APIC irq resource for cs35l41.
This patch affects only the cs35l41's probing and brings no negative
influence on machines that indeed have the cs35l41's interrupt pin
connected to GPIO.
Signed-off-by: David Xu <xuwd1@hotmail.com>
Link: https://lore.kernel.org/r/SY4P282MB18350CD8288687B87FFD2243E037A@SY4P282MB1835.AUSP282.PROD.OUTLOOK.COM
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ad084a6d99 ]
Only the HW rfkill state is toggled on laptops with quirks->ec_read_only
(so far only MSI Wind U90/U100). There are, however, a few issues with
the implementation:
1. The initial HW state is always unblocked, regardless of the actual
state on boot, because msi_init_rfkill only sets the SW state,
regardless of ec_read_only.
2. The initial SW state corresponds to the actual state on boot, but it
can't be changed afterwards, because set_device_state returns
-EOPNOTSUPP. It confuses the userspace, making Wi-Fi and/or Bluetooth
unusable if it was blocked on boot, and breaking the airplane mode if
the rfkill was unblocked on boot.
Address the above issues by properly initializing the HW state on
ec_read_only laptops and by allowing the userspace to toggle the SW
state. Don't set the SW state ourselves and let the userspace fully
control it. Toggling the SW state is a no-op, however, it allows the
userspace to properly toggle the airplane mode. The actual SW radio
disablement is handled by the corresponding rtl818x_pci and btusb
drivers that have their own rfkills.
Tested on MSI Wind U100 Plus, BIOS ver 1.0G, EC ver 130.
Fixes: 0816392b97 ("msi-laptop: merge quirk tables to one")
Fixes: 0de6575ad0 ("msi-laptop: Add MSI Wind U90/U100 support")
Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Link: https://lore.kernel.org/r/20230721145423.161057-1-maxtram95@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 839e90e75e upstream.
apmf_get_system_params() failure is not a critical event, reduce its
verbosity from dev_err to dev_dbg.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20230714144435.1239776-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 33c9ab5b49 upstream.
APMF fn8 can notify EC about the OS slider position change. Add this
capability to the PMF driver so that it can call the APMF fn8 based on
the changes in the Platform profile events.
Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20230714144435.1239776-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
