linux/drivers/platform/chrome, branch v6.4

Merge tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

2023-04-27T18:53:57Z

Pull driver core updates from Greg KH: "Here is the large set of driver core changes for 6.4-rc1. Once again, a busy development cycle, with lots of changes happening in the driver core in the quest to be able to move "struct bus" and "struct class" into read-only memory, a task now complete with these changes. This will make the future rust interactions with the driver core more "provably correct" as well as providing more obvious lifetime rules for all busses and classes in the kernel. The changes required for this did touch many individual classes and busses as many callbacks were changed to take const * parameters instead. All of these changes have been submitted to the various subsystem maintainers, giving them plenty of time to review, and most of them actually did so. Other than those changes, included in here are a small set of other things: - kobject logging improvements - cacheinfo improvements and updates - obligatory fw_devlink updates and fixes - documentation updates - device property cleanups and const * changes - firwmare loader dependency fixes. All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (120 commits) device property: make device_property functions take const device * driver core: update comments in device_rename() driver core: Don't require dynamic_debug for initcall_debug probe timing firmware_loader: rework crypto dependencies firmware_loader: Strip off \n from customized path zram: fix up permission for the hot_add sysfs file cacheinfo: Add use_arch[|_cache]_info field/function arch_topology: Remove early cacheinfo error message if -ENOENT cacheinfo: Check cache properties are present in DT cacheinfo: Check sib_leaf in cache_leaves_are_shared() cacheinfo: Allow early level detection when DT/ACPI info is missing/broken cacheinfo: Add arm64 early level initializer implementation cacheinfo: Add arch specific early level initializer tty: make tty_class a static const structure driver core: class: remove struct class_interface * from callbacks driver core: class: mark the struct class in struct class_interface constant driver core: class: make class_register() take a const * driver core: class: mark class_release() as taking a const * driver core: remove incorrect comment for device_create* MIPS: vpe-cmp: remove module owner pointer from struct class usage. ...

platform/chrome: wilco_ec: remove return value check of debugfs_create_dir()

2023-04-24T05:35:12Z

Smatch complains that: wilco_ec_debugfs_probe() warn: 'debug_info->dir' is an error pointer or valid Debugfs checks are generally not supposed to be checked for errors and it is not necessary here. Just delete the dead code. Signed-off-by: Zhengkang Huang Reviewed-by: Dongliang Mu Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20230419100303.343379-1-zkhuang@hust.edu.cn

platform/chrome: cros_ec_debugfs: fix kernel-doc warning

2023-04-24T05:35:12Z

Fix the following kernel-doc warning: $ ./scripts/kernel-doc -none drivers/platform/chrome/* [...] warning: This comment starts with '/**', but isn't a kernel-doc comment. Fixes: 14bb09b32f43 ("platform/chrome: cros_ec: Separate logic for getting panic info") Reported-by: kernel test robot Signed-off-by: Tzung-Bi Shih Reviewed-by: Benson Leung Link: https://lore.kernel.org/r/20230411053308.1572493-1-tzungbi@kernel.org

platform/chrome: cros_ec: Separate logic for getting panic info

2023-04-24T05:35:12Z

Create a separate function called cros_ec_get_panicinfo for getting panic info from EC. Currently cros_ec_create_panicinfo is the only caller. Signed-off-by: Rob Barnes Signed-off-by: Tzung-Bi Shih Link: https://lore.kernel.org/r/20230410165817.932449-1-robbarnes@google.com

platform/chrome: cros_typec_switch: Add missing fwnode_handle_put()

2023-04-24T05:35:12Z

In cros_typec_register_switches(), we should add fwnode_handle_put() when break out of the iteration device_for_each_child_node() as it will automatically increase and decrease the refcounter. Fixes: affc804c44c8 ("platform/chrome: cros_typec_switch: Add switch driver") Signed-off-by: Liang He Link: https://lore.kernel.org/r/20230322041657.1857001-1-windhl@126.com Signed-off-by: Prashant Malani

platform/chrome: cros_ec: remove unneeded label and if-condition

2023-04-24T05:35:11Z

Both `ec_dev->ec` and `ec_dev->pd` are initialized to NULL at the beginning of cros_ec_register(). Also, platform_device_unregister() takes care if the given platform_device is NULL. Remove the unneeded goto-label and if-condition. Signed-off-by: Tzung-Bi Shih Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20230308031247.2866401-1-tzungbi@kernel.org

Merge 6.3-rc5 into driver-core-next

2023-04-03T07:33:30Z

We need the fixes in here for testing, as well as the driver core changes for documentation updates to build on. Signed-off-by: Greg Kroah-Hartman

platform/chrome: cros_ec_chardev: fix kernel data leak from ioctl

2023-03-24T02:56:28Z

It is possible to peep kernel page's data by providing larger `insize` in struct cros_ec_command[1] when invoking EC host commands. Fix it by using zeroed memory. [1]: https://elixir.bootlin.com/linux/v6.2/source/include/linux/platform_data/cros_ec_proto.h#L74 Fixes: eda2e30c6684 ("mfd / platform: cros_ec: Miscellaneous character device to talk with the EC") Signed-off-by: Tzung-Bi Shih Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20230324010658.1082361-1-tzungbi@kernel.org

drivers: remove struct module * setting from struct class

2023-03-17T14:16:27Z

There is no need to manually set the owner of a struct class, as the registering function does it automatically, so remove all of the explicit settings from various drivers that did so as it is unneeded. This allows us to remove this pointer entirely from this structure going forward. Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/20230313181843.1207845-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

platform/chrome: cros_ec_typec: Fix spelling mistake

2023-02-08T18:21:03Z

There is a spelling mistake in a dev_warn message, make it lower case and fix the spelling. Signed-off-by: Colin Ian King Reviewed-by: Tzung-Bi Shih Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20230207091443.143995-1-colin.i.king@gmail.com Signed-off-by: Prashant Malani [pmalani fixed up commit message based on tzungbi comment]