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It's necessary to setup bus if any slots are present. - update clock after ctrl reset - if the host has genpd node, we can guarantee the clock is available before starting request. Otherwies, the clock register is reset once power off the pd, and host can't output the active clock during communication. Fixes:e9ed8835e9("mmc: dw_mmc: add runtime PM callback") Fixes:df9bcc2bc0("mmc: dw_mmc: add missing codes for runtime resume") cc: <stable@vger.kernel.org> Reported-by: Randy Li <randy.li@rock-chips.com> Reported-by: S. Gilles <sgilles@math.umd.edu> Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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.