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1f311c94aa
SD spec definition: "Host provides at least 74 Clocks before issuing first command" After 1ms for the voltage stable then start issuing the Clock signals if POWER STATE is MMC_POWER_OFF to MMC_POWER_UP to issue Clock signal to card MMC_POWER_UP to MMC_POWER_ON to stop issuing signal to card Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/1badf10aba764191a1a752edcbf90389@realtek.com Signed-off-by: Ulf Hansson <ulf.hansson@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.