kernel/linux.git/drivers/soundwire/qcom.c, branch v6.19.11

soundwire: qcom: adding support for v3.1.0

2025-12-08T07:07:26+00:00

Add support for controller version v3.1.0, which has changes in register layout and some register fields compared to v2.0. Signed-off-by: Srinivas Kandagatla Tested-by: Alexey Klimov # sm8550 Link: https://patch.msgid.link/20250912083225.228778-8-srinivas.kandagatla@oss.qualcomm.com Signed-off-by: Vinod Koul

soundwire: qcom: prepare for v3.x

2025-12-08T07:07:26+00:00

cleanup the register layout structs to prepare for adding new 3.x controller support. Signed-off-by: Srinivas Kandagatla Tested-by: Alexey Klimov # sm8550 Link: https://patch.msgid.link/20250912083225.228778-6-srinivas.kandagatla@oss.qualcomm.com Signed-off-by: Vinod Koul

soundwire: qcom: deprecate qcom,din/out-ports

2025-12-08T07:07:26+00:00

Number of input and output ports can be dynamically read from the controller registers, getting this value from Device Tree is redundant and potentially lead to bugs. Remove the code parsing this property along with marking this as deprecated in device tree bindings. Signed-off-by: Srinivas Kandagatla Tested-by: Alexey Klimov # sm8550 Link: https://patch.msgid.link/20250912083225.228778-5-srinivas.kandagatla@oss.qualcomm.com Signed-off-by: Vinod Koul

soundwire: qcom: remove unused rd_fifo_depth

2025-12-08T07:07:26+00:00

remove read fifo depth field parsing logic, as rd_fifo_depth is never used in the driver. Cleaning this up would benefit when adding new variant support which includes adding variant fields for rd_fifo_depth. ex: Glymur has this rd_fifo_depth register fields changed from v2.x Signed-off-by: Srinivas Kandagatla Reviewed-by: Konrad Dybcio Tested-by: Alexey Klimov # sm8550 Link: https://patch.msgid.link/20250912083225.228778-3-srinivas.kandagatla@oss.qualcomm.com Signed-off-by: Vinod Koul

soundwire: Use min() to improve code

2025-09-01T17:18:22+00:00

Use min() to reduce the code in qcom_swrm_xfer_msg() and improve its readability. Signed-off-by: Qianfeng Rong Link: https://lore.kernel.org/r/20250814142428.282639-1-rongqianfeng@vivo.com Signed-off-by: Vinod Koul

Merge tag 'soundwire-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2025-08-01T18:09:27+00:00

Pull soundwire updates from Vinod Koul: "A couple of small core changes and driver updates: - Core: handling of nesting irqs to outside the lock, stream parameters handing on port prep failures. - AMD driver support for ACP 7.2 platforms and improved handing of slave alerts and resume sequences - Qualcomm updating driver debug spew - Intel BPT message length limitations, rt721 codec as wake capable etc" * tag 'soundwire-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: amd: Add support for acp7.2 platform soundwire: stream: restore params when prepare ports fail soundwire: debugfs: move debug statement outside of error handling soundwire: amd: add check for status update registers soundwire: intel_auxdevice: add rt721 codec to wake_capable_list soundwire: Correct some property names soundwire: update Intel BPT message length limitation soundwire: intel_ace2.x: Use str_read_write() helper soundwire: amd: cancel pending slave status handling workqueue during remove sequence soundwire: amd: serialize amd manager resume sequence during pm_prepare soundwire: qcom: demote probe registration printk ASoC: cs42l43: Remove unnecessary work functions soundwire: Move handle_nested_irq outside of sdw_dev_lock MAINTAINERS: Remove Sanyog Kale as reviewer on SoundWire

soundwire: Revert "soundwire: qcom: Add set_channel_map api support"

2025-07-15T12:46:27+00:00

This reverts commit 7796c97df6b1b2206681a07f3c80f6023a6593d5. This patch broke Dragonboard 845c (sdm845). I see: Unexpected kernel BRK exception at EL1 Internal error: BRK handler: 00000000f20003e8 [#1] SMP pc : qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] lr : snd_soc_dai_set_channel_map+0x34/0x78 Call trace: qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] (P) sdm845_dai_init+0x18c/0x2e0 [snd_soc_sdm845] snd_soc_link_init+0x28/0x6c snd_soc_bind_card+0x5f4/0xb0c snd_soc_register_card+0x148/0x1a4 devm_snd_soc_register_card+0x50/0xb0 sdm845_snd_platform_probe+0x124/0x148 [snd_soc_sdm845] platform_probe+0x6c/0xd0 really_probe+0xc0/0x2a4 __driver_probe_device+0x7c/0x130 driver_probe_device+0x40/0x118 __device_attach_driver+0xc4/0x108 bus_for_each_drv+0x8c/0xf0 __device_attach+0xa4/0x198 device_initial_probe+0x18/0x28 bus_probe_device+0xb8/0xbc deferred_probe_work_func+0xac/0xfc process_one_work+0x244/0x658 worker_thread+0x1b4/0x360 kthread+0x148/0x228 ret_from_fork+0x10/0x20 Kernel panic - not syncing: BRK handler: Fatal exception Dan has also reported following issues with the original patch https://lore.kernel.org/all/33fe8fe7-719a-405a-9ed2-d9f816ce1d57@sabinyo.mountain/ Bug #1: The zeroeth element of ctrl->pconfig[] is supposed to be unused. We start counting at 1. However this code sets ctrl->pconfig[0].ch_mask = 128. Bug #2: There are SLIM_MAX_TX_PORTS (16) elements in tx_ch[] array but only QCOM_SDW_MAX_PORTS + 1 (15) in the ctrl->pconfig[] array so it corrupts memory like Yongqin Liu pointed out. Bug 3: Like Jie Gan pointed out, it erases all the tx information with the rx information. Cc: stable@vger.kernel.org # v6.15+ Signed-off-by: Amit Pundir Acked-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20250709174949.8541-1-amit.pundir@linaro.org Signed-off-by: Vinod Koul

soundwire: qcom: demote probe registration printk

2025-06-09T16:06:49+00:00

Driver should generally by quiet on successful probe. Demote the Qualcomm controller registration info message to debug level to make boot logs a little less noisy: qcom-soundwire 6ab0000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered qcom-soundwire 6ad0000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered qcom-soundwire 6b10000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered qcom-soundwire 6d30000.soundwire: Qualcomm Soundwire controller v2.0.0 Registered Signed-off-by: Johan Hovold Reviewed-by: Dmitry Baryshkov Acked-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20250523085317.11439-1-johan+linaro@kernel.org Signed-off-by: Vinod Koul

soundwire: qcom: Add set_channel_map api support

2025-02-06T11:49:22+00:00

Added qcom_swrm_set_channel_map api to set the master channel mask for TX and RX paths based on the provided slots. Added a new field ch_mask to the qcom_swrm_port_config structure. This field is used to store the master channel mask, which allows more flexible to configure channel mask in runtime for specific active soundwire ports. Modified the qcom_swrm_port_enable function to configure master channel mask. If the ch_mask is set to SWR_INVALID_PARAM or is zero, the function will use the default channel mask. Signed-off-by: Mohammad Rafi Shaik Acked-by: Vinod Koul Link: https://patch.msgid.link/20250206112225.3270400-4-quic_mohs@quicinc.com Signed-off-by: Mark Brown

Merge tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2025-01-29T22:38:19+00:00

Pull soundwire updates from Vinod Koul: - SoundWire multi lane support to use multiple lanes if supported - Stream handling of DEPREPARED state - AMD wake register programming for power off mode * tag 'soundwire-6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: amd: clear wake enable register for power off mode soundwire: generic_bandwidth_allocation: count the bandwidth of active streams only SoundWire: pass stream to compute_params() soundwire: generic_bandwidth_allocation: add lane in sdw_group_params soundwire: generic_bandwidth_allocation: select data lane soundwire: generic_bandwidth_allocation: check required freq accurately soundwire: generic_bandwidth_allocation: correct clk_freq check in sdw_select_row_col Soundwire: generic_bandwidth_allocation: set frame shape on fly Soundwire: stream: program BUSCLOCK_SCALE Soundwire: add sdw_slave_get_scale_index helper soundwire: generic_bandwidth_allocation: skip DEPREPARED streams soundwire: stream: set DEPREPARED state earlier soundwire: add lane_used_bandwidth in struct sdw_bus soundwire: mipi_disco: read lane mapping properties from ACPI soundwire: add lane field in sdw_port_runtime soundwire: bus: Move irq mapping cleanup into devres