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commit fec40f44afdabcbc4a7748e4278f30737b54bb1a upstream. SPI mode doesn't support cmd7, so remove it in mmc_sdio_alive() and confirm if sdio is active by checking CCCR register value is available or not. Signed-off-by: Rex Chen <rex.chen_1@nxp.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250728082230.1037917-2-rex.chen_1@nxp.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.