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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-arm-kernel@lists.infradead.org,
	suzuki.poulose@arm.com
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Mike Leach <mike.leach@linaro.org>,
	James Clark <james.clark@arm.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	linux-acpi@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	coresight@lists.linaro.org,
	linux-stm32@st-md-mailman.stormreply.com
Subject: [PATCH V4 00/11] coresight: Move remaining AMBA ACPI devices into platform driver
Date: Tue, 23 Jan 2024 11:15:57 +0530
Message-Id: <20240123054608.1790189-1-anshuman.khandual@arm.com>
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This moves remaining AMBA ACPI devices into respective platform drivers for
enabling ACPI based power management support. This series applies on kernel
v6.8-rc1 release. This series has been built, and boot tested on a DT based
coresight platform. Although this still requires some more testing on ACPI
based coresight platforms.

https://git.gitlab.arm.com/linux-arm/linux-anshuman.git (amba_other_acpi_migration_v4)

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: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.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
Cc: linux-stm32@st-md-mailman.stormreply.com

Changes in V4:

- Fixed PM imbalance in etm4_probe() error path with pm_runtime_disable()
- Restored back the pm_runtime_disable() on platform probe error paths
  in replicator, funnel, catu, tpiu, tmc and stm devices
- Dropped dev_caps argument from __tmc_probe()
- Changed xxxx_platform_remove() for platform_driver->remove_new() callback

Changes in V3:

https://lore.kernel.org/all/20231208053939.42901-1-anshuman.khandual@arm.com/

- Split coresight_init_driver/remove_driver() helpers into a separate patch
- Added 'drvdata->pclk' comments in replicator, funnel, tpiu, tmc, and stm devices
- Updated funnel, and replicator drivers to use these new helpers
- Check for drvdata instead of drvdata->pclk in suspend and resume paths in catu,
  tmc and debug devices
- Added patch to extract device name from AMBA pid based table lookup for stm
- Added patch to extract device properties from AMBA pid based table look for tmc
- Dropped pm_runtime_put() from common __probe() functions
- Handled pm_runtime_put() in AMBA driver in success path
- Handled pm_runtime_put() in platform driver in both success and error paths

Changes in V2:

https://lore.kernel.org/all/20231201062053.1268492-1-anshuman.khandual@arm.com/

- Dropped redundant devm_ioremap_resource() hunk from tmc_platform_probe()
- Defined coresight_[init|remove]_driver() for both AMBA/platform drivers
- Changed catu, tmc, tpiu, stm and debug coresight drivers to use the new
  helpers avoiding build issues arising from module_amba_driver(), and
  module_platform_driver() being on the same file

Changes in V1:

https://lore.kernel.org/all/20231027072943.3418997-1-anshuman.khandual@arm.com/

- Replaced all IS_ERR() instances with IS_ERR_OR_NULL() as per Suzuki

Changes in RFC:

https://lore.kernel.org/all/20230921042040.1334641-1-anshuman.khandual@arm.com/

Anshuman Khandual (11):
  coresight: etm4x: Fix unbalanced pm_runtime_enable()
  coresight: stm: Extract device name from AMBA pid based table lookup
  coresight: tmc: Extract device properties from AMBA pid based table lookup
  coresight: Add helpers registering/removing both AMBA and platform drivers
  coresight: replicator: Move ACPI support from AMBA driver to platform driver
  coresight: funnel: Move ACPI support from AMBA driver to platform driver
  coresight: catu: Move ACPI support from AMBA driver to platform driver
  coresight: tpiu: Move ACPI support from AMBA driver to platform driver
  coresight: tmc: Move ACPI support from AMBA driver to platform driver
  coresight: stm: Move ACPI support from AMBA driver to platform driver
  coresight: debug: Move ACPI support from AMBA driver to platform driver

 drivers/acpi/arm64/amba.c                     |   8 -
 drivers/hwtracing/coresight/coresight-catu.c  | 142 +++++++++++++---
 drivers/hwtracing/coresight/coresight-catu.h  |   1 +
 drivers/hwtracing/coresight/coresight-core.c  |  29 ++++
 .../hwtracing/coresight/coresight-cpu-debug.c | 141 ++++++++++++++--
 .../coresight/coresight-etm4x-core.c          |   3 +
 .../hwtracing/coresight/coresight-funnel.c    |  86 +++++-----
 drivers/hwtracing/coresight/coresight-priv.h  |  10 ++
 .../coresight/coresight-replicator.c          |  81 ++++-----
 drivers/hwtracing/coresight/coresight-stm.c   | 117 +++++++++++--
 .../hwtracing/coresight/coresight-tmc-core.c  | 158 +++++++++++++++---
 drivers/hwtracing/coresight/coresight-tmc.h   |   2 +
 drivers/hwtracing/coresight/coresight-tpiu.c  | 102 +++++++++--
 include/linux/coresight.h                     |   7 +
 14 files changed, 726 insertions(+), 161 deletions(-)

-- 
2.25.1