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The commit086d08725d("remoteproc: create vdev subdevice with specific dma memory pool") has introduced a new vdev subdevice for each vdev declared in the firmware resource table and made it as the parent for the created virtio rpmsg devices instead of the previous remoteproc device. This changed the overall parenting hierarchy for the rpmsg devices, which were children of virtio devices, and does not allow the corresponding rpmsg drivers to retrieve the parent rproc device through the rproc_get_by_child() API. Fix this by restoring the remoteproc device as the parent. The new vdev subdevice can continue to inherit the DMA attributes from the remoteproc's parent device (actual platform device). Cc: stable@vger.kernel.org Fixes:086d08725d("remoteproc: create vdev subdevice with specific dma memory pool") Signed-off-by: Suman Anna <s-anna@ti.com> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Link: https://lore.kernel.org/r/20200420160600.10467-3-s-anna@ti.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.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.