Sandeep Maheswaram
568262bf54
usb: dwc3: core: Add shutdown callback for dwc3
This patch adds a shutdown callback to USB DWC core driver to ensure that it is properly shutdown in reboot/shutdown path. This is required where SMMU address translation is enabled like on SC7180 SoC and few others. If the hardware is still accessing memory after SMMU translation is disabled as part of SMMU shutdown callback in system reboot or shutdown path, then IOVAs(I/O virtual address) which it was using will go on the bus as the physical addresses which might result in unknown crashes (NoC/interconnect errors). Acked-by: Felipe Balbi <balbi@kernel.org> Signed-off-by: Sandeep Maheswaram <sanm@codeaurora.org> Link: https://lore.kernel.org/r/1618380209-20114-1-git-send-email-sanm@codeaurora.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. 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.
Description
Languages
C
97.6%
Assembly
1%
Shell
0.5%
Python
0.3%
Makefile
0.3%