kernel/linux.git/drivers/soundwire/intel_auxdevice.c, branch v6.12.80

soundwire: intel_auxdevice: add cs42l45 codec to wake_capable_list

2026-03-04T12:21:22+00:00

[ Upstream commit f87e5575a6bd1925cd55f500b61b661724372e5f ] Add cs42l45 to the wake_capable_list because it can generate jack events whilst the bus is stopped. Signed-off-by: Maciej Strozek Reviewed-by: Bard Liao Signed-off-by: Charles Keepax Link: https://patch.msgid.link/20251215151729.3911077-1-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

Merge tag 'soundwire-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2024-09-23T21:00:46+00:00

Pull soundwire updates from Vinod Koul: - bus cleanup for warnings and probe deferral errors suppression - cadence recheck for status with a delayed work - intel interrupt rework on reset exit * tag 'soundwire-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: intel_bus_common: enable interrupts before exiting reset soundwire: cadence: re-check Peripheral status with delayed_work soundwire: bus: clean up probe warnings soundwire: bus: drop unused driver name field soundwire: bus: suppress probe deferral errors

soundwire: intel: add probe-time check on link id

2024-08-19T11:25:52+00:00

In older platforms, the number of links was constant and hard-coded to 4. Newer platforms can have varying number of links, so we need to add a probe-time check to make sure the ACPI-reported information with _DSD properties is aligned with hardware capabilities reported in the SoundWire LCAP register. Acked-by: Vinod Koul Signed-off-by: Pierre-Louis Bossart Reviewed-by: Péter Ujfalusi Signed-off-by: Bard Liao Acked-by: Mark Brown Reviewed-by: Takashi Iwai Link: https://patch.msgid.link/20240819005548.5867-3-yung-chuan.liao@linux.intel.com Signed-off-by: Mark Brown

soundwire: cadence: re-check Peripheral status with delayed_work

2024-08-18T06:44:24+00:00

The SoundWire peripheral enumeration is entirely based on interrupts, more specifically sticky bits tracking state changes. This patch adds a defensive programming check on the actual status reported in PING frames. If for some reason an interrupt was lost or delayed, the delayed work would detect a peripheral change of status after the bus starts. The 100ms defined for the delay is not completely arbitrary, if a Peripheral didn't join the bus within that delay then probably the hardware link is broken, and conversely if the detection didn't happen because of software issues the 100ms is still acceptable in terms of user experience. The overhead of the one-shot workqueue is minimal, and the mutual exclusion ensures that the interrupt and delayed work cannot update the status concurrently. Reviewed-by: Liam Girdwood Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20240805114921.88007-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

Merge tag 'soundwire-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2024-07-24T20:04:43+00:00

Pull soundwire updates from Vinod Koul: - Simplification across subsystem using cleanup.h - Support for debugfs to read/write commands - Few Intel and Qualcomm driver updates * tag 'soundwire-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: debugfs: simplify with cleanup.h soundwire: cadence: simplify with cleanup.h soundwire: intel_ace2x: simplify with cleanup.h soundwire: intel_ace2x: simplify return path in hw_params soundwire: intel: simplify with cleanup.h soundwire: intel: simplify return path in hw_params soundwire: amd_init: simplify with cleanup.h soundwire: amd: simplify with cleanup.h soundwire: amd: simplify return path in hw_params soundwire: intel_auxdevice: start the bus at default frequency soundwire: intel_auxdevice: add cs42l43 codec to wake_capable_list drivers:soundwire: qcom: cleanup port maask calculations soundwire: bus: simplify by using local slave->prop soundwire: generic_bandwidth_allocation: change port_bo parameter to pointer soundwire: Intel: clarify Copyright information soundwire: intel_ace2.x: add AC timing extensions for PantherLake soundwire: bus: add stream refcount soundwire: debugfs: add interface to read/write commands

soundwire: intel_auxdevice: start the bus at default frequency

2024-07-09T13:40:50+00:00

When platform firmware exposes multiple supported bus frequencies, the existing SoundWire support selects the maximum frequency. This is not aligned with the SoundWire 1.2 directions: the MIPI recommendation is to start at a 'safe' speed, compatible with the default frame rate and shape, and only increase the clock when vendor and codec PHY parameters are updated. However, clock changes are not supported for now by the SoundWire core, so in practice this patch has the effect of discarding frequencies different to the implicit default. Dynamic clock changes will be required at some point, and this limitation will be removed after the core is updated, specifically to perform synchronous clock scale changes on manager and peripheral sides with a bank switch. On Intel LunarLake platforms with a 'standard' DSDT, this forces the use of 4.8MHz. On older platforms this patch has no effect. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20240704003411.10347-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: intel_auxdevice: add cs42l43 codec to wake_capable_list

2024-07-09T13:39:31+00:00

cs42l43 has wake capability. Add it to the wake_capable_list. Signed-off-by: Bard Liao Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20240705114305.160233-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: intel_ace2.x: add AC timing extensions for PantherLake

2024-06-03T12:11:11+00:00

The ACE3 IP used in PantherLake exposes new bitfields in the ACTMCTL register to better control clocks/delays. These bitfields were reserved/zero in the ACE2.x IP, to simplify the integration the new bifields are added unconditionally. The behavior will only be impacted when the firmware exposes DSD properties to set non-zero values. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Péter Ujfalusi Reviewed-by: Ranjani Sridharan Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20240603070240.5165-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: fix usages of device_get_named_child_node()

2024-06-03T12:05:24+00:00

The documentation for device_get_named_child_node() mentions this important point: " The caller is responsible for calling fwnode_handle_put() on the returned fwnode pointer. " Add fwnode_handle_put() to avoid leaked references. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20240429004935.2400191-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: intel_ace2.x: add support for DOAISE property

2024-05-04T12:56:50+00:00

Extend previous patches with the DOAISE field and property. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20240429004321.2399754-5-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul