kernel/linux.git/include/linux/soundwire/sdw.h, branch v6.6.132

soundwire: bus: introduce controller_id

2024-02-01T00:18:47+00:00

[ Upstream commit 6543ac13c623f906200dfd3f1c407d8d333b6995 ] The existing SoundWire support misses a clear Controller/Manager hiearchical definition to deal with all variants across SOC vendors. a) Intel platforms have one controller with 4 or more Managers. b) AMD platforms have two controllers with one Manager each, but due to BIOS issues use two different link_id values within the scope of a single controller. c) QCOM platforms have one or more controller with one Manager each. This patch adds a 'controller_id' which can be set by higher levels. If assigned to -1, the controller_id will be set to the system-unique IDA-assigned bus->id. The main change is that the bus->id is no longer used for any device name, which makes the definition completely predictable and not dependent on any enumeration order. The bus->id is only used to insert the Managers in the stream rt context. Reviewed-by: Bard Liao Reviewed-by: Vijendar Mukunda Signed-off-by: Pierre-Louis Bossart Reviewed-by: Krzysztof Kozlowski Tested-by: Krzysztof Kozlowski Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/stable/20231017160933.12624-2-pierre-louis.bossart%40linux.intel.com Tested-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20231017160933.12624-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul Stable-dep-of: 8a8a9ac8a497 ("soundwire: fix initializing sysfs for same devices on different buses") Signed-off-by: Sasha Levin

Merge tag 'soundwire-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2023-09-03T17:20:57+00:00

Pull soundwire updates from Vinod Koul: "Device numbering and intel driver changes are main features: - Core support for soundwire device number allocation - intel driver updates for adding hw_params for DAI ops, hybrid number allocation and power managemnt callback updates - DT header include changes for subsystem" * tag 'soundwire-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: intel_ace2x: add DAI hw_params/prepare/hw_free callbacks soundwire: intel_auxdevice: add hybrid IDA-based device_number allocation soundwire: bus: add callbacks for device_number allocation soundwire: extend parameters of new_peripheral_assigned() callback soundWire: intel_auxdevice: resume 'sdw-master' on startup and system resume soundwire: intel_auxdevice: enable pm_runtime earlier on startup soundwire: Explicitly include correct DT includes

Add cs42l43 PC focused SoundWire CODEC

2023-08-22T11:48:04+00:00

Merge series from Charles Keepax : This patch chain adds support for the Cirrus Logic cs42l43 PC focused SoundWire CODEC. The chain is currently based of Lee's for-mfd-next branch. This series is mostly just a resend keeping pace with the kernel under it, except for a minor fixup in the ASoC stuff. Thanks, Charles Charles Keepax (4): dt-bindings: mfd: cirrus,cs42l43: Add initial DT binding mfd: cs42l43: Add support for cs42l43 core driver pinctrl: cs42l43: Add support for the cs42l43 ASoC: cs42l43: Add support for the cs42l43 Lucas Tanure (2): soundwire: bus: Allow SoundWire peripherals to register IRQ handlers spi: cs42l43: Add SPI controller support .../bindings/sound/cirrus,cs42l43.yaml | 313 +++ MAINTAINERS | 4 + drivers/mfd/Kconfig | 23 + drivers/mfd/Makefile | 3 + drivers/mfd/cs42l43-i2c.c | 98 + drivers/mfd/cs42l43-sdw.c | 239 ++ drivers/mfd/cs42l43.c | 1188 +++++++++ drivers/mfd/cs42l43.h | 28 + drivers/pinctrl/cirrus/Kconfig | 11 + drivers/pinctrl/cirrus/Makefile | 2 + drivers/pinctrl/cirrus/pinctrl-cs42l43.c | 609 +++++ drivers/soundwire/bus.c | 32 + drivers/soundwire/bus_type.c | 12 + drivers/spi/Kconfig | 7 + drivers/spi/Makefile | 1 + drivers/spi/spi-cs42l43.c | 284 ++ include/linux/mfd/cs42l43-regs.h | 1184 +++++++++ include/linux/mfd/cs42l43.h | 102 + include/linux/soundwire/sdw.h | 9 + include/sound/cs42l43.h | 17 + sound/soc/codecs/Kconfig | 16 + sound/soc/codecs/Makefile | 4 + sound/soc/codecs/cs42l43-jack.c | 946 +++++++ sound/soc/codecs/cs42l43-sdw.c | 74 + sound/soc/codecs/cs42l43.c | 2278 +++++++++++++++++ sound/soc/codecs/cs42l43.h | 131 + 26 files changed, 7615 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml create mode 100644 drivers/mfd/cs42l43-i2c.c create mode 100644 drivers/mfd/cs42l43-sdw.c create mode 100644 drivers/mfd/cs42l43.c create mode 100644 drivers/mfd/cs42l43.h create mode 100644 drivers/pinctrl/cirrus/pinctrl-cs42l43.c create mode 100644 drivers/spi/spi-cs42l43.c create mode 100644 include/linux/mfd/cs42l43-regs.h create mode 100644 include/linux/mfd/cs42l43.h create mode 100644 include/sound/cs42l43.h create mode 100644 sound/soc/codecs/cs42l43-jack.c create mode 100644 sound/soc/codecs/cs42l43-sdw.c create mode 100644 sound/soc/codecs/cs42l43.c create mode 100644 sound/soc/codecs/cs42l43.h -- 2.30.2

soundwire: bus: Allow SoundWire peripherals to register IRQ handlers

2023-08-17T11:06:11+00:00

Currently the in-band alerts for SoundWire peripherals can only be communicated to the driver through the interrupt_callback function. This however is slightly inconvenient for devices that wish to share IRQ handling code between SoundWire and I2C/SPI, the later would normally register an IRQ handler with the IRQ subsystem. However there is no reason the SoundWire in-band IRQs can not also be communicated as an actual IRQ to the driver. Add support for SoundWire peripherals to register a normal IRQ handler to receive SoundWire in-band alerts, allowing code to be shared across control buses. Note that we allow users to use both the interrupt_callback and the IRQ handler, this is useful for devices which must clear additional chip specific SoundWire registers that are not a part of the normal IRQ flow, or the SoundWire specification. Signed-off-by: Lucas Tanure Reviewed-by: Pierre-Louis Bossart Acked-by: Bard Liao Acked-by: Vinod Koul Signed-off-by: Charles Keepax Link: https://lore.kernel.org/r/20230804104602.395892-2-ckeepax@opensource.cirrus.com Signed-off-by: Lee Jones

soundwire: bus: add callbacks for device_number allocation

2023-08-11T06:59:25+00:00

Rather than add logic in the core for vendor-specific usages, add callbacks for vendor-specific device_number allocation and release. This patch only moves the existing IDA-based allocator used only by Intel to the intel_auxdevice.c file and does not change the functionality. Follow-up patches will extend the behavior by modifying the Intel callbacks. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20230731091333.3593132-3-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: extend parameters of new_peripheral_assigned() callback

2023-08-11T06:59:25+00:00

The parameters are only the bus and the device number, manager ops may need additional details on the type of peripheral connected, such as whether it is wake-capable or not. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20230731091333.3593132-2-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

ASoC: soc-acpi: move link_slaves_found()

2023-07-31T22:24:00+00:00

Move existing function in common library to make sure the code can be reused by other SoC vendors. No functionality change outside of the move and added prefix. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Bard Liao Link: https://lore.kernel.org/r/20230731213242.434594-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

soundwire: bus: Prevent lockdep asserts when stream has multiple buses

2023-06-21T11:01:44+00:00

Give the bus_lock and msg_lock of each bus a different unique key so that it is possible to acquire the locks of multiple buses without lockdep asserting a possible deadlock. Using mutex_init() to initialize a mutex gives all those mutexes the same lock class. Lockdep checking treats it as an error to attempt to take a mutex while already holding a mutex of the same class. This causes a lockdep assert when sdw_acquire_bus_lock() attempts to lock multiple buses, and when do_bank_switch() takes multiple msg_lock. [ 138.697350] WARNING: possible recursive locking detected [ 138.697366] 6.3.0-test #1 Tainted: G E [ 138.697380] -------------------------------------------- [ 138.697394] play/903 is trying to acquire lock: [ 138.697409] ffff99b8c41aa8c8 (&bus->bus_lock){+.+.}-{3:3}, at: sdw_prepare_stream+0x52/0x2e0 [ 138.697443] but task is already holding lock: [ 138.697468] ffff99b8c41af8c8 (&bus->bus_lock){+.+.}-{3:3}, at: sdw_prepare_stream+0x52/0x2e0 [ 138.697493] other info that might help us debug this: [ 138.697521] Possible unsafe locking scenario: [ 138.697540] CPU0 [ 138.697550] ---- [ 138.697559] lock(&bus->bus_lock); [ 138.697570] lock(&bus->bus_lock); [ 138.697581] *** DEADLOCK *** Giving each mutex a unique key allows multiple to be held without triggering a lockdep assert. But note that it does not allow them to be taken in one order then a different order. If two mutexes are taken in the order A, B then they must always be taken in that order otherwise they could deadlock. Signed-off-by: Richard Fitzgerald Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20230615141208.679011-1-rf@opensource.cirrus.com Signed-off-by: Vinod Koul

soundwire: bus: add new manager callback to deal with peripheral enumeration

2023-05-27T10:36:46+00:00

When a peripheral reports as ATTACHED, the manager may need to follow a programming sequence, e.g. to assign DMA resources and/or assign a command queue for that peripheral. This patch adds an optional callback, which will be invoked every time the peripheral attaches. This might be overkill in some scenarios, and one could argue that this should be invoked only on the first attachment. The bus does not however track this first attachment with any existing state-mirroring variable, and using dev_num_sticky would not work across suspend-resume cycles. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Péter Ujfalusi Reviewed-by: Ranjani Sridharan Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20230515071042.2038-20-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

Merge tag 'soundwire-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2023-02-25T01:29:52+00:00

Pull soundwire updates from Vinod Koul: "This is a small update which features a bit of core changes and driver updates in Intel and cadence driver. Core: - sdw_transfer_defer() API change to drop an argument - Reset page address rework - Export sdw_nwrite_no_pm and sdw_nread_no_pm APIs Drivers: - Cadence and related intel driver updates for FIFO handling and low level msg transfers" * tag 'soundwire-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: cadence: further simplify low-level xfer_msg_defer() callback soundwire: cadence: use directly bus sdw_defer structure soundwire: bus: remove sdw_defer argument in sdw_transfer_defer() soundwire: stream: use consistent pattern for freeing buffers soundwire: bus: Remove unused reset_page_addr() callback soundwire: bus: Don't zero page registers after every transaction soundwire: bus_type: Avoid lockdep assert in sdw_drv_probe() soundwire: stream: Move remaining register accesses over to no_pm soundwire: debugfs: Switch to sdw_read_no_pm soundwire: Provide build stubs for common functions soundwire: bus: export sdw_nwrite_no_pm and sdw_nread_no_pm functions soundwire: cadence: remove unused sdw_cdns_master_ops declaration soundwire: enable optional clock registers for SoundWire 1.2 devices ASoC/soundwire: remove is_sdca boolean property soundwire: cadence: Drain the RX FIFO after an IO timeout soundwire: cadence: Remove wasted space in response_buf soundwire: cadence: Don't overflow the command FIFOs soundwire: intel: remove DAI startup/shutdown