wireguard-linux/drivers/platform/chrome, branch stable

platform/chrome: cros_ec: Add a flag to track registration state

2025-09-14T03:34:41Z

Introduce a `registered` flag to the `struct cros_ec_device` to allow callers to determine if the device has been fully registered and is ready for use. This is a preparatory step to prevent race conditions where other drivers might try to access the device before it is fully registered or after it has been unregistered. Link: https://lore.kernel.org/r/20250828083601.856083-5-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih

platform/chrome: cros_ec: Separate initialization from cros_ec_register()

2025-09-14T03:34:41Z

Move the initialization of the `struct cros_ec_device` from cros_ec_register() into cros_ec_device_alloc(). This decouples device initialization from registration. By doing so, the per-device lock is now available immediately after allocation, allowing it to be used safely even before the device is fully registered. Link: https://lore.kernel.org/r/20250828083601.856083-4-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih

platform/chrome: Centralize common cros_ec_device initialization

2025-09-14T03:34:41Z

Move the common initialization from protocol device drivers into central cros_ec_device_alloc(). This removes duplicated code from each driver's probe function. The buffer sizes are now calculated once, using the maximum possible overhead required by any of the transport protocols, ensuring the allocated buffers are sufficient for all cases. Link: https://lore.kernel.org/r/20250828083601.856083-3-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih

platform/chrome: Centralize cros_ec_device allocation

2025-09-14T03:34:41Z

Introduce a helper function, cros_ec_device_alloc(), to centralize the allocation of the struct cros_ec_device. Convert all protocol device drivers to use this new function. This is a preparatory step for separating common initialization logic out of device drivers' probe() and cros_ec_register(). Link: https://lore.kernel.org/r/20250828083601.856083-2-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih

platform/chrome: wilco_ec: Remove redundant semicolons

2025-08-13T09:57:21Z

Remove unnecessary semicolons. Signed-off-by: Liao Yuanhong Link: https://lore.kernel.org/r/20250813094858.557742-1-liaoyuanhong@vivo.com Signed-off-by: Tzung-Bi Shih

platform/chrome: cros_ec: Avoid -Wflex-array-member-not-at-end warning

2025-08-13T09:52:41Z

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. Use the new TRAILING_OVERLAP() helper to fix the following warning: drivers/platform/chrome/cros_ec.c:106:40: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] This helper creates a union between a flexible-array member (FAM) and a set of members that would otherwise follow it. This overlays the trailing members onto the FAM while preserving the original memory layout. Signed-off-by: Gustavo A. R. Silva Link: https://lore.kernel.org/r/aJnvuv334M7TljoB@kspp Signed-off-by: Tzung-Bi Shih

platform/chrome: cros_ec_chardev: Decouple fops from struct cros_ec_dev

2025-08-11T06:37:29Z

The fops doesn't really need to hold a reference to struct cros_ec_dev. Remove the references from the fops. No functional changes. Link: https://lore.kernel.org/r/20250721044456.2736300-4-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih

platform/chrome: cros_ec_chardev: Remove redundant struct field

2025-08-11T06:37:29Z

`ec_dev` in the `struct chardev_data` is unused. Remove the field and the whole struct as well. Link: https://lore.kernel.org/r/20250721044456.2736300-2-tzungbi@kernel.org Signed-off-by: Tzung-Bi Shih

Merge tag 'driver-core-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

2025-07-29T19:15:39Z

Pull driver core updates from Danilo Krummrich: "debugfs: - Remove unneeded debugfs_file_{get,put}() instances - Remove last remnants of debugfs_real_fops() - Allow storing non-const void * in struct debugfs_inode_info::aux sysfs: - Switch back to attribute_group::bin_attrs (treewide) - Switch back to bin_attribute::read()/write() (treewide) - Constify internal references to 'struct bin_attribute' Support cache-ids for device-tree systems: - Add arch hook arch_compact_of_hwid() - Use arch_compact_of_hwid() to compact MPIDR values on arm64 Rust: - Device: - Introduce CoreInternal device context (for bus internal methods) - Provide generic drvdata accessors for bus devices - Provide Driver::unbind() callbacks - Use the infrastructure above for auxiliary, PCI and platform - Implement Device::as_bound() - Rename Device::as_ref() to Device::from_raw() (treewide) - Implement fwnode and device property abstractions - Implement example usage in the Rust platform sample driver - Devres: - Remove the inner reference count (Arc) and use pin-init instead - Replace Devres::new_foreign_owned() with devres::register() - Require T to be Send in Devres - Initialize the data kept inside a Devres last - Provide an accessor for the Devres associated Device - Device ID: - Add support for ACPI device IDs and driver match tables - Split up generic device ID infrastructure - Use generic device ID infrastructure in net::phy - DMA: - Implement the dma::Device trait - Add DMA mask accessors to dma::Device - Implement dma::Device for PCI and platform devices - Use DMA masks from the DMA sample module - I/O: - Implement abstraction for resource regions (struct resource) - Implement resource-based ioremap() abstractions - Provide platform device accessors for I/O (remap) requests - Misc: - Support fallible PinInit types in Revocable - Implement Wrapper for Opaque - Merge pin-init blanket dependencies (for Devres) Misc: - Fix OF node leak in auxiliary_device_create() - Use util macros in device property iterators - Improve kobject sample code - Add device_link_test() for testing device link flags - Fix typo in Documentation/ABI/testing/sysfs-kernel-address_bits - Hint to prefer container_of_const() over container_of()" * tag 'driver-core-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (84 commits) rust: io: fix broken intra-doc links to `platform::Device` rust: io: fix broken intra-doc link to missing `flags` module rust: io: mem: enable IoRequest doc-tests rust: platform: add resource accessors rust: io: mem: add a generic iomem abstraction rust: io: add resource abstraction rust: samples: dma: set DMA mask rust: platform: implement the `dma::Device` trait rust: pci: implement the `dma::Device` trait rust: dma: add DMA addressing capabilities rust: dma: implement `dma::Device` trait rust: net::phy Change module_phy_driver macro to use module_device_table macro rust: net::phy represent DeviceId as transparent wrapper over mdio_device_id rust: device_id: split out index support into a separate trait device: rust: rename Device::as_ref() to Device::from_raw() arm64: cacheinfo: Provide helper to compress MPIDR value into u32 cacheinfo: Add arch hook to compress CPU h/w id into 32 bits for cache-id cacheinfo: Set cache 'id' based on DT data container_of: Document container_of() is not to be used in new code driver core: auxiliary bus: fix OF node leak ...

platform/chrome: Fix typo in CROS_USBPD_NOTIFY help text

2025-07-23T23:09:44Z

Correct the misspelling "platorms" to "platforms" in the help text for the CROS_USBPD_NOTIFY Kconfig option. Signed-off-by: Keenan Salandy Link: https://lore.kernel.org/r/20250723140930.1443-1-keenansalandy@gmail.com Signed-off-by: Tzung-Bi Shih