ACPI: CPPC: Simplify PCC shared memory region handling

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The PCC driver now handles mapping and unmapping of shared memory
areas as part of pcc_mbox_{request,free}_channel(). Without these before,
this ACPI CPPC driver did handling of those mappings like several
other PCC mailbox client drivers.

There were redundant operations, leading to unnecessary code. Maintaining
the consistency across these driver was harder due to scattered handling
of shmem.

Just use the mapped shmem and remove all redundant operations from this
driver.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/20250411113144.1151094-2-sudeep.holla@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Sudeep Holla 2025-04-11 12:31:44 +01:00 • committed by Rafael J. Wysocki

parent 8960c45a0f

commit 3a3ce10e7a

1 changed files with 3 additions and 13 deletions

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drivers/acpi/cppc_acpi.c

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