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commit4fc7261dbaupstream. When CMD13 is sent after switching to HS400ES mode, the bus is operating at either MMC_HIGH_26_MAX_DTR or MMC_HIGH_52_MAX_DTR. To meet Tegra SDHCI requirement at HS400ES mode, force SDHCI interface clock to MMC_HS200_MAX_DTR (200 MHz) so that host controller CAR clock and the interface clock are rate matched. Signed-off-by: Prathamesh Shete <pshete@nvidia.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Fixes:dfc9700cef("mmc: tegra: Implement HS400 enhanced strobe") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211214113653.4631-1-pshete@nvidia.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.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.