- 11 Oct, 2021 5 commits
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Daniel Dadap authored
The "wmaa" in the name of the wmaa-backlight-wmi driver was named after the ACPI method handle for EC-based backlight control on the systems this driver was tested on during development. However, this "WMAA" handle is generated by the WMI compilation process, and isn't actually a part of the backlight control mechanism which this driver supports. Since the "WMAA" handle isn't actually a part of the firmware backlight interface, the various identifiers in this driver using "WMAA" or "wmaa" aren't actually appropriate. As a common denominator across the systems supported by this driver is that they are hybrid graphics systems with NVIDIA GPUs, using "nvidia" in the driver name seems more appropriate than "wmaa". Update the driver to remove "wmaa" and "WMAA" in identifier names where they appear. The kerneldoc comments for the enum wmi_brightness_method values are replaced with the verbatim text from the decompiled BMF code for this WMI class. Signed-off-by:
Daniel Dadap <ddadap@nvidia.com> Link: https://lore.kernel.org/r/20210927202359.13684-1-ddadap@nvidia.comSigned-off-by:
Hans de Goede <hdegoede@redhat.com>
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Vadim Pasternak authored
Fix shift argument for function rol32(). It should be provided in bits, while was provided in bytes. Fixes: 86148190 ("platform/mellanox: mlxreg-io: Add support for complex attributes") Signed-off-by:
Vadim Pasternak <vadimp@nvidia.com> Link: https://lore.kernel.org/r/20210927142214.2613929-3-vadimp@nvidia.comSigned-off-by:
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Vadim Pasternak authored
Change kstrtou32() argument 'base' to be zero instead of 'len'. It works by chance for setting one bit value, but it is not supposed to work in case value passed to mlxreg_io_attr_store() is greater than 1. It works for example, for: echo 1 > /sys/devices/platform/mlxplat/mlxreg-io/hwmon/.../jtag_enable But it will fail for: echo n > /sys/devices/platform/mlxplat/mlxreg-io/hwmon/.../jtag_enable, where n > 1. The flow for input buffer conversion is as below: _kstrtoull(const char *s, unsigned int base, unsigned long long *res) calls: rv = _parse_integer(s, base, &_res); For the second case, where n > 1: - _parse_integer() converts 's' to 'val'. For n=2, 'len' is set to 2 (string buffer is 0x32 0x0a), for n=3 'len' is set to 3 (string buffer 0x33 0x0a), etcetera. - 'base' is equal or greater then '2' (length of input buffer). As a result, _parse_integer() exits with result zero (rv): rv = 0; while (1) { ... if (val >= base)-> (2 >= 2) break; ... rv++; ... } And _kstrtoull() in their turn will fail: if (rv == 0) return -EINVAL; Fixes: 5ec4a8ac ("platform/mellanox: Introduce support for Mellanox register access driver") Signed-off-by: -
Mauro Carvalho Chehab authored
The ReST format requires blank lines before/after identation changes, for it to properly detect lists. Fixes: ee7abc10 ("platform/x86: intel_pmc_core: export platform global reset bits via etr3 sysfs file") Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/3673e1a255ad4100c933af215b60d68ba126f820.1632740376.git.mchehab+huawei@kernel.orgSigned-off-by:
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Mauro Carvalho Chehab authored
As described at Documentation/ABI/README doesn't contain an Attribute: field. The way sysfs ABI is supposed to work is that each different attribute would have a separate file. So, the right way to map this would be like: /sys/.../dell_privacy_supported_type/mic_mute /sys/.../dell_privacy_supported_type/camera_shutter /sys/.../dell_privacy_current_state/mic_mute /sys/.../dell_privacy_current_state/camera_shutter However, it seems to late to fix that, as this was merged already on Kernel 5.13, and a change right now would be a regression. So, instead, let's at least fix the entry to match the expected format. While here, fix the format of the contact, which is not a valid e-mail URL. This should also fix the current warnings produced when building the docs: Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi:35: WARNING: Unexpected indentation. Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi:2: WARNING: Unexpected indentation. Fixes: 8af9fa37 ("platform/x86: dell-privacy: Add support for Dell hardware privacy") Signed-off-by:
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- 28 Sep, 2021 6 commits
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Len Baker authored
As noted in the "Deprecated Interfaces, Language Features, Attributes, and Conventions" documentation [1], size calculations (especially multiplication) should not be performed in memory allocator (or similar) function arguments due to the risk of them overflowing. This could lead to values wrapping around and a smaller allocation being made than the caller was expecting. Using those allocations could lead to linear overflows of heap memory and other misbehaviors. So, to avoid open-coded arithmetic in the kzalloc() call inside the create_attr_set() function the code must be refactored. Using the struct_size() helper is the fast solution but it is better to switch this code to common use of attributes. Then, remove all the custom code to manage hotkey attributes and use the attribute_group structure instead, refactoring the code accordingly. Also, to manage the optional hotkey attributes (hotkey_tablet_mode and hotkey_radio_sw) use the is_visible callback from the same structure. Moreover, now the hotkey_init_tablet_mode() function never returns a negative number. So, the check after the call can be safely removed. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-argumentsSuggested-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
Len Baker <len.baker@gmx.com> Link: https://lore.kernel.org/r/20210926111908.6950-1-len.baker@gmx.comReviewed-by:
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Kelly Anderson authored
Adding support specifically for Ideapad 5 Pro 16ACH6-82L5 by adding a allow list that can validate notebooks for which dytc_version is less than 5, and seem to work fine at dytc_version 4. This code has been tested to work properly on the specified system. Signed-off-by:
Kelly Anderson <kelly@xilka.com> Link: https://lore.kernel.org/r/11840239.O9o76ZdvQC@comer.internalReviewed-by:
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Mark Gross authored
Signed-off-by: Mark Gross<markgross@kernel.org> Link: https://lore.kernel.org/r/20210921135358.85143-1-markgross@kernel.orgSigned-off-by:
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Sanket Goswami authored
Add a message to print the resume time information obtained from the smu_metrics structure. Signed-off-by:
Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by:
Sanket Goswami <Sanket.Goswami@amd.com> Link: https://lore.kernel.org/r/20210921120020.19454-1-Sanket.Goswami@amd.comReviewed-by:
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Sanket Goswami authored
It was reported that the resume stats received from the firmware are always zero. This happens because the SMU expects the driver to send the command to dump the log data after clearing the OS_HINT. Adjust the order of the commands sent to SMU. Signed-off-by:
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Hans de Goede authored
The amd_pmc_get_smu_version() and amd_pmc_idlemask_read() functions are used in the probe / suspend/resume code, so they are also used when CONFIG_DEBUGFS is disabled, move them outside of the #ifdef CONFIG_DEBUGFS block. Note this purely moves the code to above the #ifdef CONFIG_DEBUGFS, the code is completely unchanged. Fixes: f6045de1 ("platform/x86: amd-pmc: Export Idlemask values based on the APU") Cc: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Cc: Sanket Goswami <Sanket.Goswami@amd.com> Reported-by:
Nathan Chancellor <nathan@kernel.org> Signed-off-by:
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- 21 Sep, 2021 5 commits
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Troy Rollo authored
Adds support for: - Dell Inspiron 2in1 tablet mode switch notifications. These are delivered by a type 0x0011 message with code 0xe070, followed by a flag (1 for laptop mode, 0 for tablet mode). - Recognising (but not otherwise processing) the Dell Ultra Performance mode request switch. This is delivered by a type 0x0012 message with code 0x000d, followed by a parameter that is either 1 or 2. It is not clear what (if anything) should be done with this notification, so it is ignored. Signed-off-by:
Troy Rollo <linux2021@troy.rollo.name> Link: https://lore.kernel.org/r/20210918073131.2966942-1-linux2021@troy.rollo.nameReviewed-by:
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Tobias Jakobi authored
Tested with a AMD Ryzen 7 5800X. Signed-off-by:
Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Acked-by:
Thomas Weißschuh <thomas@weissschuh.net> Link: https://lore.kernel.org/r/20210921100702.3838-1-tjakobi@math.uni-bielefeld.deSigned-off-by:
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José Expósito authored
Some devices, even non convertible ones, can send incorrect SW_TABLET_MODE reports. Add an allow list and accept such reports only from devices in it. Bug reported for Dell XPS 17 9710 on: https://gitlab.freedesktop.org/libinput/libinput/-/issues/662Reported-by:
Tobias Gurtzick <magic@wizardtales.com> Suggested-by:
José Expósito <jose.exposito89@gmail.com> Link: https://lore.kernel.org/r/20210920160312.9787-1-jose.exposito89@gmail.com [hdegoede@redhat.com: Check dmi_switches_auto_add_allow_list only once] Signed-off-by:
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Randy Dunlap authored
When DELL_WMI=y, DELL_WMI_PRIVACY=y, and LEDS_TRIGGER_AUDIO=m, there is a linker error since the LEDS trigger code is built as a loadable module. This happens because DELL_WMI_PRIVACY is a bool that depends on a tristate (LEDS_TRIGGER_AUDIO=m), which can be dangerous. ld: drivers/platform/x86/dell/dell-wmi-privacy.o: in function `dell_privacy_wmi_probe': dell-wmi-privacy.c:(.text+0x3df): undefined reference to `ledtrig_audio_get' Fixes: 8af9fa37 ("platform/x86: dell-privacy: Add support for Dell hardware privacy") Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: Perry Yuan <Perry.Yuan@dell.com> Cc: Dell.Client.Kernel@dell.com Cc: platform-driver-x86@vger.kernel.org Cc: Hans de Goede <hdegoede@redhat.com> Cc: Mark Gross <mgross@linux.intel.com> Link: https://lore.kernel.org/r/20210918044829.19222-1-rdunlap@infradead.orgReviewed-by:
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Krzysztof Kozlowski authored
The MODULE_DEVICE_TABLE already creates proper alias for ACPI driver. Having another MODULE_ALIAS causes the alias to be duplicated. Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210916170054.136790-1-krzysztof.kozlowski@canonical.comReviewed-by:
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- 16 Sep, 2021 3 commits
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Sanket Goswami authored
IdleMask is the metric used by the PM firmware to know the status of each of the Hardware IP blocks monitored by the PM firmware. Knowing this value is key to get the information of s2idle suspend/resume status. This value is mapped to PMC scratch registers, retrieve them accordingly based on the CPU family and the underlying firmware support. Co-developed-by:
Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20210916124002.2529-1-Sanket.Goswami@amd.comReviewed-by:
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Sanket Goswami authored
As the PM firmware returns the status of the last s0i3 in the smu_metrics structure, the existing name "s0i3_cyclecount" seems to be a misnomer. Change it accordingly to "s0i3_last_entry_status". Signed-off-by:
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K Naduvalath, Sumesh authored
This driver is for accessing the PSE (Programmable Service Engine) - an Embedded Controller like IP - using ISHTP (Integratd Sensor Hub Transport Protocol) to get battery, thermal and UCSI (USB Type-C Connector System Software Interface) related data from the platform. Signed-off-by:
K Naduvalath, Sumesh <sumesh.k.naduvalath@intel.com> Reviewed-by:
Mark Gross <mgross@linux.intel.com> Link: https://lore.kernel.org/r/20210913051056.28736-1-sumesh.k.naduvalath@intel.comReviewed-by:
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- 14 Sep, 2021 21 commits
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Jules Irenge authored
checkpatch.pl tool warns about using __attribute__((packed)) "WARNING: __packed is preferred over __attribute__((packed))" To fix this __attribute__((packed)) is replaced by __packed Signed-off-by:
Jules Irenge <jbi.octave@gmail.com> Link: https://lore.kernel.org/r/20210912011741.30495-1-jbi.octave@gmail.comReviewed-by:
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Barnabás Pőcze authored
Make `find_guid()` return an acpi_status, and make it handle NULL pointer GUID strings; and adapt users accordingly. Signed-off-by:
Barnabás Pőcze <pobrn@protonmail.com> Link: https://lore.kernel.org/r/20210904175450.156801-31-pobrn@protonmail.comReviewed-by:
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Barnabás Pőcze authored
Previously, `acpi_wmi_notify_handler()` and `wmi_get_event_data()` shared more or less the exact same code to query the data for a particular event. Introduce a function to get rid of the duplication, and use it from `acpi_wmi_notify_handler()` and `wmi_get_event_data()`. Signed-off-by:
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Barnabás Pőcze authored
Introduce helper function to determine the appropriate ACPI type for the input parameter. This also fixes the following checkpatch warning: "braces {} are not necessary for any arm of this statement". Signed-off-by: -
Barnabás Pőcze authored
Instead of "manually" constructing the ACPI method name and hard-coding sizes in WMI functions, introduce a helper method which generates the method name for an arbitrary WMI block. Furthermore, save the appropriate buffer size into a macro. Signed-off-by:
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Barnabás Pőcze authored
Introduce a helper function which wraps the appropriate `container_of()` macro invocation to convert a `struct device_driver` to `struct wmi_driver`. Signed-off-by:
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Barnabás Pőcze authored
The current code carries out the following ACPI status mapping: AE_NOT_FOUND -> AE_OK AE_OK -> AE_OK AE_$X -> AE_$X That is, everything is mapped to itself, except AE_NOT_FOUND. The current code does not do it in the most straighforward way. Simplify the logic. Signed-off-by:
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Barnabás Pőcze authored
Previously, `__query_block()` would fail if the second WCxx method call failed. However, the WQxx method might have succeeded, and potentially allocated memory for the result. Instead of throwing away the result and potentially leaking memory, ignore the result of the second WCxx call. Signed-off-by:
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Barnabás Pőcze authored
Print the event identifier number in addition to the already printed information, and use %u for printing unsigned values in `wmi_notify_debug()`. Signed-off-by:
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Barnabás Pőcze authored
Align the arguments of * wmi_evaluate_method() * wmi_install_notify_handler() * wmidev_evaluate_method() * find_guid_context() * acpi_wmi_ec_space_handler() * wmi_char_read() Signed-off-by:
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Barnabás Pőcze authored
Move some variables in order to keep them in the narrowest possible scope. Signed-off-by:
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Barnabás Pőcze authored
The `block` variable is assigned and only used once, the code shorter and probably clearer without it; so remove it. Signed-off-by:
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Barnabás Pőcze authored
As per the coding style guide, the preferred way to pass the size of objects to allocator functions is `sizeof(*p)`. Use that. Signed-off-by:
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Barnabás Pőcze authored
Other parts of the code use the `!p` idiom to check for NULL pointers, convert `find_guid_context()` to do the same. Signed-off-by:
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Barnabás Pőcze authored
Instead of `sprintf()` use the new `sysfs_emit()` function. Signed-off-by:
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Barnabás Pőcze authored
The `guid_block` struct is overlaid onto a buffer coming from the _WDG ACPI object of the device. For this reason mark the struct packed and add assertions about sizes. Signed-off-by:
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Barnabás Pőcze authored
Instead of hard-coding a 16 long byte array, use the available `guid_t` type and related methods. Signed-off-by:
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Barnabás Pőcze authored
The `bool` type is more expressive for a yes/no kind of value, so use that as the type of the `enable` parameter of `wmi_method_enable()`. Signed-off-by:
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Barnabás Pőcze authored
Instead of manually creating the bit masks, use the `BIT()` macro to do it. Signed-off-by:
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Barnabás Pőcze authored
The `find_guid_context()` is only called from one place, and `wblock` and `wdriver` cannot be NULL there. So remove the currently redundant checks. Signed-off-by:
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Barnabás Pőcze authored
Remove an empty line after the last statement in `acpi_wmi_notify_handler()` which serves no purpose. Signed-off-by:
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