kernel/linux.git/drivers/soundwire/intel_auxdevice.c, branch v6.18.22

soundwire: intel_auxdevice: add cs42l45 codec to wake_capable_list

2026-03-04T12:20:32+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

soundwire: intel_auxdevice: add rt721 codec to wake_capable_list

2025-06-26T20:51:41+00:00

rt721 has wake capability. Add it to the wake_capable_list. Signed-off-by: Naveen Manohar Reviewed-by: Péter Ujfalusi Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20250626060937.405978-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: intel_auxdevice: Fix system suspend/resume handling

2025-04-30T14:23:37+00:00

Before commit bca84a7b93fd ("PM: sleep: Use DPM_FLAG_SMART_SUSPEND conditionally") the runtime PM status of the device in intel_resume() had always been RPM_ACTIVE because setting DPM_FLAG_SMART_SUSPEND had caused the core to call pm_runtime_set_active() for that device during the "noirq" resume phase. For this reason, the pm_runtime_suspended() check in intel_resume() had never triggered and the code depending on it had never run. That had not caused any observable functional issues to appear, so effectively the code in question had never been needed. After commit bca84a7b93fd the core does not call pm_runtime_set_active() for all devices with DPM_FLAG_SMART_SUSPEND set any more and the code depending on the pm_runtime_suspended() check in intel_resume() runs if the device is runtime-suspended prior to a system-wide suspend transition. Unfortunately, when it runs, it breaks things due to the attempt to runtime-resume bus->dev which most likely is not ready for a runtime resume at that point. It also does other more-or-less questionable things. Namely, it calls pm_runtime_idle() for a device with a nonzero runtime PM usage counter which has no effect (all devices have nonzero runtime PM usage counters during system-wide suspend and resume). It also calls pm_runtime_mark_last_busy() for the device even though devices cannot runtime-suspend during system-wide suspend and resume (because their runtime PM usage counters are nonzero) and an analogous call is made in the same function later. Moreover, it sets the runtime PM status of the device to RPM_ACTIVE before activating it. For the reasons listed above, remove that code altogether. On top of that, add a pm_runtime_disable() call to intel_suspend() to prevent the device from being runtime-resumed at any point after intel_suspend() has started to manipulate it because the changes made by that function would be undone by a runtime-suspend of the device. Next, once runtime PM has been disabled, the runtime PM status of the device cannot change, so pm_runtime_status_suspended() can be used instead of pm_runtime_suspended() in intel_suspend(). Finally, make intel_resume() call pm_runtime_set_active() at the end to set the runtime PM status of the device to "active" because it has just been activated and re-enable runtime PM for it after that. Additionally, drop the setting of DPM_FLAG_SMART_SUSPEND from the driver because it has no effect on devices handled by it. Fixes: bca84a7b93fd ("PM: sleep: Use DPM_FLAG_SMART_SUSPEND conditionally") Reported-by: Bard Liao Tested-by: Bard Liao Signed-off-by: Rafael J. Wysocki Acked-by: Bard Liao Link: https://patch.msgid.link/12680420.O9o76ZdvQC@rjwysocki.net

soundwire: intel_auxdevice: add indirection for BPT send_async/wait

2025-03-10T07:01:19+00:00

Mirror abstraction added for master ops. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Reviewed-by: Péter Ujfalusi Reviewed-by: Liam Girdwood Reviewed-by: Ranjani Sridharan Tested-by: shumingf@realtek.com Link: https://lore.kernel.org/r/20250227140615.8147-11-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: Revert "soundwire: intel_auxdevice: start the bus at default frequency"

2025-02-13T16:18:38+00:00

Now, we can support more than 1 soundwire bus clock frequency. This reverts commit c326356188f1 ("soundwire: intel_auxdevice: start the bus at default frequency") Signed-off-by: Bard Liao Reviewed-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20250205074232.87537-3-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

soundwire: intel_auxdevice: add kernel parameter for mclk divider

2024-10-10T12:13:55+00:00

Add a kernel parameter to work-around discrepancies between hardware and platform firmware, it's not unusual to see e.g. 38.4MHz listed in _DSD properties as the SoundWire clock source, but the hardware may be based on a 19.2 MHz mclk source. Signed-off-by: Pierre-Louis Bossart Signed-off-by: Bard Liao Link: https://lore.kernel.org/r/20241004021850.9758-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul

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