The patch below does not apply to the 6.7-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.7.y git checkout FETCH_HEAD git cherry-pick -x 8a8a9ac8a4972ee69d3dd3d1ae43963ae39cee18 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024012207-armadillo-skies-4cbf@gregkh' --subject-prefix 'PATCH 6.7.y' HEAD^..

Possible dependencies:

8a8a9ac8a497 ("soundwire: fix initializing sysfs for same devices on different buses")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 8a8a9ac8a4972ee69d3dd3d1ae43963ae39cee18 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Date: Tue, 17 Oct 2023 11:09:33 -0500 Subject: [PATCH] soundwire: fix initializing sysfs for same devices on different buses

If same devices with same device IDs are present on different soundwire buses, the probe fails due to conflicting device names and sysfs entries:

sysfs: cannot create duplicate filename '/bus/soundwire/devices/sdw:0:0217:0204:00:0'

The link ID is 0 for both devices, so they should be differentiated by the controller ID. Add the controller ID so, the device names and sysfs entries look like:

sdw:1:0:0217:0204:00:0 -> ../../../devices/platform/soc@0/6ab0000.soundwire-controller/sdw-master-1-0/sdw:1:0:0217:0204:00:0 sdw:3:0:0217:0204:00:0 -> ../../../devices/platform/soc@0/6b10000.soundwire-controller/sdw-master-3-0/sdw:3:0:0217:0204:00:0

[PLB changes: use bus->controller_id instead of bus->id]

Fixes: 7c3cd189b86d ("soundwire: Add Master registration") Cc: stable@vger.kernel.org Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Vijendar Mukunda Vijendar.Mukunda@amd.com Co-developed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Tested-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Acked-by: Mark Brown broonie@kernel.org Tested-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Link: https://lore.kernel.org/r/20231017160933.12624-3-pierre-louis.bossart@linux.... Signed-off-by: Vinod Koul vkoul@kernel.org

diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c index c1c1a2ac293a..060c2982e26b 100644 --- a/drivers/soundwire/slave.c +++ b/drivers/soundwire/slave.c @@ -39,14 +39,14 @@ int sdw_slave_add(struct sdw_bus *bus, slave->dev.fwnode = fwnode;

if (id->unique_id == SDW_IGNORED_UNIQUE_ID) { - /* name shall be sdw:link:mfg:part:class */ - dev_set_name(&slave->dev, "sdw:%01x:%04x:%04x:%02x", - bus->link_id, id->mfg_id, id->part_id, + /* name shall be sdw:ctrl:link:mfg:part:class */ + dev_set_name(&slave->dev, "sdw:%01x:%01x:%04x:%04x:%02x", + bus->controller_id, bus->link_id, id->mfg_id, id->part_id, id->class_id); } else { - /* name shall be sdw:link:mfg:part:class:unique */ - dev_set_name(&slave->dev, "sdw:%01x:%04x:%04x:%02x:%01x", - bus->link_id, id->mfg_id, id->part_id, + /* name shall be sdw:ctrl:link:mfg:part:class:unique */ + dev_set_name(&slave->dev, "sdw:%01x:%01x:%04x:%04x:%02x:%01x", + bus->controller_id, bus->link_id, id->mfg_id, id->part_id, id->class_id, id->unique_id); }

diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c index 3312ad8a563b..690c279bbb88 100644 --- a/sound/soc/intel/boards/sof_sdw.c +++ b/sound/soc/intel/boards/sof_sdw.c @@ -1232,11 +1232,11 @@ static int fill_sdw_codec_dlc(struct device *dev, else if (is_unique_device(adr_link, sdw_version, mfg_id, part_id, class_id, adr_index)) codec->name = devm_kasprintf(dev, GFP_KERNEL, - "sdw:%01x:%04x:%04x:%02x", link_id, + "sdw:0:%01x:%04x:%04x:%02x", link_id, mfg_id, part_id, class_id); else codec->name = devm_kasprintf(dev, GFP_KERNEL, - "sdw:%01x:%04x:%04x:%02x:%01x", link_id, + "sdw:0:%01x:%04x:%04x:%02x:%01x", link_id, mfg_id, part_id, class_id, unique_id);

if (!codec->name)