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For xhci-hcd platform device, all the DMA parameters are not configured properly, notably dma ops for dwc3 devices. The idea here is that you pass in the parent of_node along with the child device pointer, so it would behave exactly like the parent already does. The difference is that it also handles all the other attributes besides the mask. sysdev will represent the physical device, as seen from firmware or bus.Splitting the usb_bus->controller field into the Linux-internal device (used for the sysfs hierarchy, for printks and for power management) and a new pointer (used for DMA, DT enumeration and phy lookup) probably covers all that we really need. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sriram Dash <sriram.dash@nxp.com> Tested-by: Baolin Wang <baolin.wang@linaro.org> Tested-by: Brian Norris <briannorris@chromium.org> Tested-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Tested-by: Vivek Gautam <vivek.gautam@codeaurora.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Sinjan Kumar <sinjank@codeaurora.org> Cc: David Fisher <david.fisher1@synopsys.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: "Thang Q. Nguyen" <tqnguyen@apm.com> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Ming Lei <tom.leiming@gmail.com> Cc: Jon Masters <jcm@redhat.com> Cc: Dann Frazier <dann.frazier@canonical.com> Cc: Peter Chen <peter.chen@nxp.com> Cc: Leo Li <pku.leo@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| README | ||
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.