- 11 Dec, 2023 14 commits
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Armin Wolf authored
The WMI chardev API will be removed in the near future. Reimplement the necessary bits used by this driver so that userspace software depending on it does no break. Signed-off-by:
Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20231210202443.646427-5-W_Armin@gmx.deReviewed-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Armin Wolf authored
Use devres version of __get_free_pages() to simplify the error handling code. Signed-off-by:
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231210202443.646427-4-W_Armin@gmx.deReviewed-by:
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Armin Wolf authored
Users can already listen to ACPI WMI events through the ACPI netlink interface. The old wmi_notify_debug() interface also uses the deprecated GUID-based interface. Remove it to make the event handling code more readable. Reviewed-by:
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Armin Wolf authored
The functionality of dumping WDG entries is better provided by userspace tools like "fwts wmi", which also does not suffer from garbled printk output caused by pr_cont(). Reviewed-by:
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Hans de Goede authored
Back merge pdx86 fixes into pdx86/for-next for further WMI work depending on some of the fixes. platform-drivers-x86 for v6.7-3 Highlights: - asus-wmi: Solve i8042 filter resource handling, input, and suspend issues - wmi: Skip zero instance WMI blocks to avoid issues with some laptops - mlxbf-bootctl: Differentiate dev/production keys - platform/surface: Correct serdev related return value to avoid leaking errno into userspace - Error checking fixes The following is an automated shortlog grouped by driver: asus-wmi: - Change q500a_i8042_filter() into a generic i8042-filter - disable USB0 hub on ROG Ally before suspend - Filter Volume key presses if also reported via atkbd - Move i8042 filter install to shared asus-wmi code mellanox: - Add null pointer checks for devm_kasprintf() - Check devm_hwmon_device_register_with_groups() return value mlxbf-bootctl: - correctly identify secure boot with development keys surface: aggregator: - fix recv_buf() return value wmi: - Skip blocks with zero instances
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Ilpo Järvinen authored
Remove unused debug code inside #if 0 ... #endif. Signed-off-by:
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Srinivas Pandruvada authored
When a feature is read blocked, don't continue to read uncore information and register with uncore core. When the feature is write blocked, continue to offer read interface but block setting uncore limits. Signed-off-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by:
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Srinivas Pandruvada authored
When a feature is read blocked, don't continue to read SST information and register with SST core. When the feature is write blocked, continue to offer read interface for SST parameters, but don't allow any operation to change state. A state change results from SST level change, feature change or class of service change. Signed-off-by:
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Srinivas Pandruvada authored
Move TPMI ID definitions to common include file. In this way other feature drivers don't have to redefine. Signed-off-by:
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Srinivas Pandruvada authored
Modify the external interface tpmi_get_feature_status() to get read and write blocked instead of locked and disabled. Since auxiliary device is not created when disabled, no use of returning disabled state. Also locked state is not useful as feature driver can't use locked state in a meaningful way. Using read and write state, feature driver can decide which operations to restrict for that feature. Signed-off-by:
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Srinivas Pandruvada authored
If some TPMI features are disabled, don't create auxiliary devices. In this way feature drivers will not load. While creating auxiliary devices, call tpmi_read_feature_status() to check feature state and return if the feature is disabled without creating a device. Signed-off-by:
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Andy Shevchenko authored
'extern' for the functions is not needed, drop it. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by:
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Uwe Kleine-König authored
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/a6b074b7ee37f3682da4b3f39ea40af97add64c2.1701726190.git.u.kleine-koenig@pengutronix.deReviewed-by:
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Uwe Kleine-König authored
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by:
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- 04 Dec, 2023 25 commits
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Dan Carpenter authored
The spi_new_device() function returns NULL on error, it doesn't return error pointers. Fixes: 70505ea6 ("platform/x86: x86-android-tablets: Add support for SPI device instantiation") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/4b1b2395-c7c5-44a4-b0b0-6d091c7f46a2@moroto.mountainReviewed-by:
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David E. Box authored
Expose the Die C6 counter on Meteor Lake. Signed-off-by:
David E. Box <david.e.box@linux.intel.com> Reviewed-by:
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David E. Box authored
Add a "die_c6_us_show" debugfs attribute. Reads the counter value using Intel Platform Monitoring Technology (PMT) driver API. This counter is useful for determining the idle residency of CPUs in the compute tile. Also adds a missing forward declaration for punit_ep which was declared in an earlier upstream commit but only used for the first time in this one. Signed-off-by:
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Xi Pardee authored
Add support to read the low power mode requirements for Meteor Lake M and Meteor Lake P. Signed-off-by:
Xi Pardee <xi.pardee@intel.com> Signed-off-by:
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Xi Pardee authored
On supported platforms, the low power mode (LPM) requirements for entering each idle substate are described in Platform Monitoring Technology (PMT) telemetry entries. Provide a function for platform code to attempt to find and read the requirements from the telemetry entries. Signed-off-by:
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Rajvi Jingar authored
Update the substate_requirements attribute to display the requirements for all the PMCs on a package. Signed-off-by:
Rajvi Jingar <rajvi.jingar@linux.intel.com> Signed-off-by:
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David E. Box authored
The PMC SSRAM device contains counters that are structured in Intel Platform Monitoring Technology (PMT) telemetry regions. Look for and register these telemetry regions from the driver so that they may be read using the Intel PMT ABI. Signed-off-by:
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David E. Box authored
Instead of checking for a NULL regbase, use the return value from pmc_core_ssram_init() to check if PMC discovery was successful. If not, use the legacy enumeration method (which only works for the primary PMC). Signed-off-by:
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David E. Box authored
Clean up the code handling SSRAM discovery. Handle all resource allocation and cleanup in pmc_core_ssram_get_pmc(). Return the error status from this function but only fail the init if we fail to discover the primary PMC. Signed-off-by:
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David E. Box authored
Currently, if the PMC SSRAM initialization fails, no error is returned and the only indication is that a PMC device has not been created. Instead, allow an error to be returned and handled directly by the caller. Signed-off-by:
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Xi Pardee authored
In order to setup a table of low power mode requirements for Meteor Lake, pmc_core_get_low_power_modes() will need to be run from platform init code so that the enabled modes are known, allowing the use of the pmc_for_each_mode helper. Make the function global and call it from the platform init code. Signed-off-by:
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David E. Box authored
Export symbols to allow access to Intel PMT Telemetry data on available devices. Provides APIs to search, register, and read telemetry using a kref managed pointer that serves as a handle to a telemetry endpoint. To simplify searching for present devices, have the IDA start at 1 instead of 0 so that 0 can be used to indicate end of search. Signed-off-by:
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David E. Box authored
The PMT header is passed to several functions. Instead, store the header in struct intel_pmt_entry which is also passed to these functions and shorten the argument list. This simplifies the calls in preparation for later changes. While here also perform a newline cleanup. Signed-off-by:
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David E. Box authored
Some devices may emulate PCI VSEC capabilities in MMIO. In such cases the BAR is not readable from a config space. Provide a field for drivers to indicate the base address to be used. Signed-off-by:
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Gayatri Kammela authored
Add and export intel_vsec_register() to allow the registration of Intel extended capabilities from other drivers. Add check to look for memory conflicts before registering a new capability. Since the vsec provider may not be a PCI device, add a parent field to intel_vsec_platform_info() to allow specifying the parent device for device managed cleanup. Signed-off-by:
Gayatri Kammela <gayatri.kammela@linux.intel.com> Signed-off-by:
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David E. Box authored
Instead of checking for a NULL parent argument in intel_vsec_add_aux() and then assigning it to the probed device, remove this check and just pass the device in the call. Since this function is exported, return -EINVAL if the parent is not specified. Signed-off-by:
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David E. Box authored
Use cleanup.h helpers to handle cleanup of resources in intel_vsec_add_dev() after failures. Signed-off-by:
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David E. Box authored
In preparation for exporting an API to register Intel Vendor Specific Extended Capabilities (VSEC) from other drivers, remove the pointer to platform_info from intel_vsec_device. This prevents a potential page fault when auxiliary drivers probe and attempt to dereference this pointer to access the needed quirks field. Instead, just add the quirks to intel_vsec_device. Signed-off-by:
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David E. Box authored
In preparation for exporting an API to register Intel Vendor Specific Extended Capabilities (VSEC) from other drivers, move needed structures to the header file. Signed-off-by:
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David E. Box authored
In intel_vsec_add_aux(), just return from the last call to devm_add_action_or_reset() instead of checking its return value. Suggested-by:
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David E. Box authored
Commit 936874b7 ("platform/x86/intel/vsec: Add PCI error recovery support to Intel PMT") added an xarray to track the list of vsec devices to be recovered after a PCI error. But it did not provide cleanup for the list leading to a memory leak that was caught by kmemleak. Do xa_alloc() before devm_add_action_or_reset() so that the list may be cleaned up with xa_erase() in the release function. Fixes: 936874b7 ("platform/x86/intel/vsec: Add PCI error recovery support to Intel PMT") Signed-off-by:
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Kunwu Chan authored
devm_hwmon_device_register_with_groups() returns an error pointer upon failure. Check its return value for errors. Compile-tested only. Fixes: 1a218d31 ("platform/mellanox: mlxbf-pmc: Add Mellanox BlueField PMC driver") Suggested-by:
Vadim Pasternak <vadimp@nvidia.com> Signed-off-by:
Kunwu Chan <chentao@kylinos.cn> Reviewed-by:
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Kunwu Chan authored
devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Compile-tested only. Fixes: 1a218d31 ("platform/mellanox: mlxbf-pmc: Add Mellanox BlueField PMC driver") Suggested-by:
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Henry Shi authored
Add Silicom platform (silicom-platform) Linux driver for Swisscom Business Box (Swisscom BB) as well as Cordoba family products. This platform driver provides support for various functions via the Linux LED framework, GPIO framework, Hardware Monitoring (HWMON) and device attributes. Signed-off-by:
Henry Shi <henryshi2018@gmail.com> Reviewed-by:
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David Thompson authored
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: 79e29cb8 ("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.comReviewed-by:
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- 02 Dec, 2023 1 commit
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Edson Juliano Drosdeck authored
Adhere to Linux kernel coding style. Reported by checkpatch: WARNING: braces {} are not necessary for single statement blocks Signed-off-by:Edson Juliano Drosdeck <edson.drosdeck@gmail.com> Link: https://lore.kernel.org/r/20231016191349.3856-1-edson.drosdeck@gmail.comSigned-off-by:
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