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MSM sd host controller is capable of HW busy detection of device busy signaling over DAT0 line. And it requires the R1B response for commands that have this response associated with them. So set the below two host capabilities for qcom SDHC. - MMC_CAP_WAIT_WHILE_BUSY - MMC_CAP_NEED_RSP_BUSY Recent development of the mmc core in regards to this, revealed this as being a potential bug, hence the stable tag. Cc: <stable@vger.kernel.org> # v4.19+ Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/1587363626-20413-2-git-send-email-vbadigan@codeaurora.org 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.