mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-02 18:04:38 -04:00
0a71d8b95f
Current IORT code provides a function (ie iort_get_fwnode()) which looks up a struct fwnode_handle pointer through a struct acpi_iort_node pointer for SMMU components but it lacks a function that implements the reverse look-up, namely struct fwnode_handle* -> struct acpi_iort_node*. Devices that are not IORT named components cannot be retrieved through their associated IORT named component scan interface because they just are not represented in the ACPI namespace; the reverse look-up is therefore required for all platform devices that represent IORT nodes (eg SMMUs) so that the struct acpi_iort_node* can be retrieved from the struct device->fwnode pointer. Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> [lorenzo.pieralisi@arm.com: re-indented/rewrote the commit log] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.