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commitb1c1b98962upstream. For Pluton TPM devices, it was assumed that there was no ACPI memory regions. This is not true for ASUS ROG Ally. ACPI advertises 0xfd500000-0xfd5fffff. Since remapping is already done in `crb_map_pluton`, remapping again in `crb_map_io` causes EBUSY error: [ 3.510453] tpm_crb MSFT0101:00: can't request region for resource [mem 0xfd500000-0xfd5fffff] [ 3.510463] tpm_crb: probe of MSFT0101:00 failed with error -16 Cc: stable@vger.kernel.org # v6.3+ Fixes:4d27328827("tpm_crb: Add support for CRB devices based on Pluton") Signed-off-by: Valentin David <valentin.david@gmail.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.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.