lwn.git/sound/soc/amd/acp/acp-sdw-sof-mach.c, branch docs-fixes

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

ASoC: amd: acp-sdw-sof: Fix confusing cleanup.h syntax

2025-12-14T10:34:45+00:00

Initializing automatic __free variables to NULL without need (e.g. branches with different allocations), followed by actual allocation is in contrary to explicit coding rules guiding cleanup.h: "Given that the "__free(...) = NULL" pattern for variables defined at the top of the function poses this potential interdependency problem the recommendation is to always define and assign variables in one statement and not group variable definitions at the top of the function when __free() is used." Code does not have a bug, but is less readable and uses discouraged coding practice, so fix that by moving declaration to the place of assignment. Signed-off-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20251203-asoc-wrong-cleanup-h-continued-v1-2-5142be4874fb@oss.qualcomm.com Signed-off-by: Mark Brown

ASoC: intel: sof_sdw: Add ability to have auxiliary devices

2025-11-27T19:18:49+00:00

Currently the sof_sdw machine driver assumes that all devices involved in the sound card are connected through a DAI link. However for SDCA devices we still want the HID (Human Interface Device, used for jack buttons) to be part of the sound card, but it contains no DAI links. Add support into the machine driver to specify a list of auxiliary devices to merged into the card. Reviewed-by: Bard Liao Signed-off-by: Charles Keepax Link: https://patch.msgid.link/20251127163426.2500633-6-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown

ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails

2025-10-15T18:53:20+00:00

devm_kasprintf() may return NULL on memory allocation failure, but the debug message prints cpus->dai_name before checking it. Move the dev_dbg() call after the NULL check to prevent potential NULL pointer dereference. Fixes: cb8ea62e64020 ("ASoC: amd/sdw_utils: add sof based soundwire generic machine driver") Signed-off-by: Li Qiang Link: https://patch.msgid.link/20251015075530.146851-1-liqiang01@kylinos.cn Signed-off-by: Mark Brown

ASoC: amd: acp: Add SoundWire SOF machine driver support for acp7.2 platform

2025-08-01T13:36:07+00:00

Add SoundWire SOF machine driver support for acp7.2 platform. Signed-off-by: Venkata Prasad Potturu Link: https://patch.msgid.link/20250801062207.579388-5-venkataprasad.potturu@amd.com Signed-off-by: Mark Brown

Minor bug fix and tidy up for sof_sdw

2025-05-07T05:12:23+00:00

Merge series from Charles Keepax : Fix a small bug that can cause the sof_sdw machine driver to fail probe after the first time it has probed. Also do some minor tidy up on the handling of the platform_component of the dai links.

ASoC: amd: sof_amd_sdw: add logic to get cpu_pin_id for ACP7.0/ACP7.1 platforms

2025-05-06T13:48:25+00:00

Add logic to get cpu_pin_id for creating SoundWire dai link for ACP7.0/ACP7.1 platforms. Signed-off-by: Vijendar Mukunda Link: https://patch.msgid.link/20250506120823.3621604-3-Vijendar.Mukunda@amd.com Signed-off-by: Mark Brown

ASoC: amd: sof_amd_sdw: Fix unlikely uninitialized variable use in create_sdw_dailinks()

2025-05-06T13:48:25+00:00

Initialize current_be_id to 0 in SOF based AMD generic SoundWire machine driver to handle the unlikely case when there are no devices connected to a DAI. In this case create_sdw_dailink() would return without touching the passed pointer to current_be_id. Found by gcc -fanalyzer Cc: stable@vger.kernel.org Fixes: 6d8348ddc56ed ("ASoC: amd: acp: refactor SoundWire machine driver code") Signed-off-by: Vijendar Mukunda Link: https://patch.msgid.link/20250506120823.3621604-2-Vijendar.Mukunda@amd.com Signed-off-by: Mark Brown

ASoC: sdw_utils: Remove num_platforms from simple DAI helper

2025-05-05T22:48:39+00:00

There is no point in passing num_platforms into asoc_sdw_init_simple_dai_link(). Firstly, as a single pointer for the component name is passed in only a single string can be passed and secondly if it is a complex DAI with multiple platforms it would make more sense to use asoc_sdw_init_dai_link(). Signed-off-by: Charles Keepax Link: https://patch.msgid.link/20250505141409.2614010-2-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown