coresight: tpiu: Move ACPI support from AMBA driver to platform driver
authorAnshuman Khandual <anshuman.khandual@arm.com>
Thu, 14 Mar 2024 05:58:40 +0000 (11:28 +0530)
committerSuzuki K Poulose <suzuki.poulose@arm.com>
Tue, 16 Apr 2024 10:30:45 +0000 (11:30 +0100)
commit3d83d4d4904a47626854b6bba44127d21a7dc713
tree713b27608c61a7fa7083761cf1599bfa1c6adcda
parent23567323857d2073197953bb158413be1aceca8b
coresight: tpiu: Move ACPI support from AMBA driver to platform driver

Add support for the tpiu device in the platform driver, which can then be
used on ACPI based platforms. This change would now allow runtime power
management for ACPI based systems. The driver would try to enable the APB
clock if available. But first this renames and then refactors tpiu_probe()
and tpiu_remove(), making sure it can be used both for platform and AMBA
drivers. This also moves pm_runtime_put() from tpiu_probe() to the callers.
While here, this also sorts the included headers in alphabetic order.

Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: James Clark <james.clark@arm.com>
Cc: linux-acpi@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: coresight@lists.linaro.org
Tested-by: Sudeep Holla <sudeep.holla@arm.com> # Boot and driver probe only
Acked-by: Sudeep Holla <sudeep.holla@arm.com> # For ACPI related changes
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240314055843.2625883-9-anshuman.khandual@arm.com
drivers/acpi/arm64/amba.c
drivers/hwtracing/coresight/coresight-tpiu.c